General

  • Target

    IMG_53771.doc

  • Size

    723KB

  • Sample

    210119-y9lnleexdx

  • MD5

    94b325f2056c7033a2dcbdab4a42e334

  • SHA1

    cb03edf5456b64c3ba8d07f13090a2e8a57ec0b3

  • SHA256

    f1aaa22dbbd01e23709ea1409d97fe379597ee4eb696878ba7e4630bcae426d2

  • SHA512

    6c14d7d16579627b448b37b60ddf1893fcb1f16b7dc1a707b018b3e0fd70a89dbb199c313757916c0e756ab4842ff8cd0736b123c2699b373bc1484d964298d3

Malware Config

Targets

    • Target

      IMG_53771.doc

    • Size

      723KB

    • MD5

      94b325f2056c7033a2dcbdab4a42e334

    • SHA1

      cb03edf5456b64c3ba8d07f13090a2e8a57ec0b3

    • SHA256

      f1aaa22dbbd01e23709ea1409d97fe379597ee4eb696878ba7e4630bcae426d2

    • SHA512

      6c14d7d16579627b448b37b60ddf1893fcb1f16b7dc1a707b018b3e0fd70a89dbb199c313757916c0e756ab4842ff8cd0736b123c2699b373bc1484d964298d3

    • Snake Keylogger

      Keylogger and Infostealer first seen in November 2020.

    • Snake Keylogger Payload

    • Blocklisted process makes network request

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Exploitation for Client Execution

1
T1203

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Tasks