General

  • Target

    IMG_13791.doc

  • Size

    623KB

  • Sample

    210118-l61nn1qqcx

  • MD5

    f07ba9823647515d52c35fdc53936c2e

  • SHA1

    2072b8921e48ffc0cfe1560e989cf63957b4343a

  • SHA256

    26a2b448dc82400ef64b88557b9443731bf994f0539ccb147b14a9a89c0283d1

  • SHA512

    87d3007aace763d6181b5c098fac1f28e58f6dfa74fb8375c08f190c129b2abb46068dabb115834e0287cbf8600fd08a05e4a9be47ba9248edf66456e4b5478f

Malware Config

Targets

    • Target

      IMG_13791.doc

    • Size

      623KB

    • MD5

      f07ba9823647515d52c35fdc53936c2e

    • SHA1

      2072b8921e48ffc0cfe1560e989cf63957b4343a

    • SHA256

      26a2b448dc82400ef64b88557b9443731bf994f0539ccb147b14a9a89c0283d1

    • SHA512

      87d3007aace763d6181b5c098fac1f28e58f6dfa74fb8375c08f190c129b2abb46068dabb115834e0287cbf8600fd08a05e4a9be47ba9248edf66456e4b5478f

    • 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.

    • Adds Run key to start application

    • 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

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

2
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