307716b78bf3e153a398e412…

sample

Tracked by C2 Tracker · indicators & metadata only, the APK itself is never published

Analyst notes

WebSocket VNC Banker (provisional). WebSocket VNC Banker (provisional) is an Android overlay/VNC banking trojan that talks to its operator over a WebSocket channel. The C2 endpoint is ws://:8080/, where the host is held as an AES-128-CBC-encrypted, base64-encoded field decrypted at runtime with a PBKDF2-HMAC-SHA1 key (password, salt, 65536 iterations, 128-bit) and a string IV, then DNS-resolved before connecting (after an HTTP reachability probe). It injects overlays for credential theft, intercepts SMS and one-time passwords, pins a custom CA, and sends device headers (X-Device-Id, X-Device-Model, X-Api-Level). Strings are hidden behind a byte-array XOR decoder plus opaque-predicate (hashCode sparse-switch) control-flow obfuscation and a fill-array-data element-width-17 trap that breaks jadx/baksmali/androguard, so the C2 is recovered by running the sample decoders on a JVM. Seen both as a standalone app and as the payload of a Brazilian Correios-lure dropper (child package dune.firefly.imagine). Observed C2s include 107.148.78.150:8080 and 190.2.184.130:8080. Family label provisional. Indicators: ws://167.86.110.102:8080/, http://190.102.41.210:5000.

Recovered configuration

banker_hosts

167.86.110.102

decoy

google.com

dropper_package

com.syncfiles.backup

lcg_seed

616326804

package

com.syncfiles.backup

probe_path

/yaarsa/private/

webrtc_owner

Gruporota

webrtc_panel

http://190.102.41.210:5000

Identification

SHA-256: 307716b78bf3e153a398e412cd7e707d94e980881e94c71380a9327979cd0ba9
MD5: ce6ccc0360ab12cabedd3c273a516345

Observed

Families: WebSocket VNC Banker (provisional)
First seen: 2026-10-06

C2 configuration (2)

Every indicator extracted from this sample. One row per C2 - each links to its indicator page with Whois, DNS and certificate pivots.

Indicator	Type	Port	Scheme	Family	First seen
167.86.110.102/	ip	8080	ws	WebSocket VNC Banker (provisional)	2026-10-06
190.102.41.210	ip	5000	http	WebSocket VNC Banker (provisional)	2026-10-06

Signing certificate

Subject CN: Android Debug
Issuer CN: Android Debug
Fingerprint: 1e08a903aef9c3a721510b64ec764d01d3d094eb954161b62544ea8f187b5953

Relationships

Sample → C2 indicators, signing certificate (with every other sample signed by it) and family. Click a node for details, double-click to open its page.

Click a node to inspect it.

About WebSocket VNC Banker (provisional)

**WebSocket VNC Banker (provisional)** is an Android overlay/VNC banking trojan that talks to its operator over a WebSocket channel. The C2 endpoint is ws://<host>:8080/, where the host is held as an AES-128-CBC-encrypted, base64-encoded field decrypted at runtime with a PBKDF2-HMAC-SHA1 key (password, salt, 65536 iterations, 128-bit) and a string IV, then DNS-resolved before connecting (after an HTTP reachability probe). It injects overlays for credential theft, intercepts SMS and one-time passwords, pins a custom CA, and sends device headers (X-Device-Id, X-Device-Model, X-Api-Level). Strings are hidden behind a byte-array XOR decoder plus opaque-predicate (hashCode sparse-switch) control-flow obfuscation and a fill-array-data element-width-17 trap that breaks jadx/baksmali/androguard, so the C2 is recovered by running the sample decoders on a JVM. Seen both as a standalone app and as the payload of a Brazilian Correios-lure dropper (child package dune.firefly.imagine). Observed C2s include 107.148.78.150:8080 and 190.2.184.130:8080. Family label provisional.