C2Tracker

685c1bb36790b24a6b902dbb…

sample

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

Analyst notes

ChinaSMSStealer. SMS-intercepting stealer exfiltrating over email rather than a network C2: the SMTP account and password sit as const-strings in the i()/j() accessors of Lcom/phone/stop/db/a;. Detected by a four-part manifest fingerprint (INTERNET, activity.MainActivity, receiver.SMSReceiver, service.SecondService). Indicators: 13416437901@139.com:qq123123.

Identification

SHA-256
685c1bb36790b24a6b902dbb99d257546859177ee46839885d6f6d9b00e07ce0
MD5
402ee21b6bd8f5c34ab4eb1e2df9b4b7

Observed

Families
ChinaSMSStealer
First seen
2026-02-28

APK metadata

Summary

Type
Android · APK
Package
cn.okmwdsaa
Main activity
ti.iisq.swx.ClientActivity
Internal version
—
Displayed version
—
Min SDK
—
Target SDK
—

Signing certificate

Valid from
2008-02-29 01:33:46
Valid to
2035-07-17 01:33:46
Serial
936eacbe07f201df
Thumbprint
61ed377e85d386a8dfee6b864bd85b0bfaa5af81
Subject
C:US, CN:Android, L:Mountain View, O:Android, ST:California, OU:Android, email:android@android.com
Subject email
android@android.com
Issuer
C:US, CN:Android, L:Mountain View, O:Android, ST:California, OU:Android, email:android@android.com

Permissions (17)

android.permission.ACCESS_NETWORK_STATEandroid.permission.ACCESS_WIFI_STATEandroid.permission.CALL_PHONEandroid.permission.GET_TASKSandroid.permission.INTERNETandroid.permission.READ_CALL_LOGandroid.permission.READ_CONTACTSandroid.permission.READ_PHONE_STATEandroid.permission.READ_SMSandroid.permission.RECEIVE_BOOT_COMPLETEDandroid.permission.RECEIVE_SMSandroid.permission.SEND_SMSandroid.permission.VIBRATEandroid.permission.WRITE_CALL_LOGandroid.permission.WRITE_EXTERNAL_STORAGEandroid.permission.WRITE_SETTINGSandroid.permission.WRITE_SMS

Activities (8)

  • com.shit.ComposeSmsActivity
  • ti.iisq.swx.ClientActivity
  • ti.iisq.swx.FX
  • ti.iisq.swx.MainActivity
  • ti.iisq.swx.UninActivity
  • ti.iisq.swx.Uninstaller
  • ti.iisq.swx.UninstallerActivity
  • ti.iisq.swx.WebInterfaceActivity

Services (2)

  • ti.iisq.swx.HeadlessSmsSendService
  • ti.iisq.swx.MyService

Receivers (5)

  • ti.iisq.swx.AlarmReceiver
  • ti.iisq.swx.BootReceiver
  • ti.iisq.swx.Dx
  • ti.iisq.swx.MmsReceiver
  • ti.iisq.swx.XReceiver

Intent filters — actions

android.app.action.DEVICE_ADMIN_ENABLEDandroid.intent.action.BOOT_COMPLETEDandroid.intent.action.RESPOND_VIA_MESSAGEandroid.provider.Telephony.SMS_DELIVERandroid.provider.Telephony.SMS_RECEIVEDandroid.provider.Telephony.WAP_PUSH_DELIVER

Intent filters — categories

android.intent.category.DEFAULT

C2 configuration (1)

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

IndicatorTypePortSchemeFamilyFirst seen
13416437901@139.com:qq123123 email — — ChinaSMSStealer 2026-02-28

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 ChinaSMSStealer

SMS-intercepting stealer exfiltrating over email rather than a network C2: the SMTP account and password sit as const-strings in the i()/j() accessors of Lcom/phone/stop/db/a;. Detected by a four-part manifest fingerprint (INTERNET, activity.MainActivity, receiver.SMSReceiver, service.SecondService).