General

  • Target

    MV. TBN.exe

  • Size

    17KB

  • Sample

    221123-lfbk3sef3v

  • MD5

    3c1446661a4699bd8b1e30e50edb5033

  • SHA1

    362c1af3d3f43b4185e017b9a20f1bf73d0c2ab4

  • SHA256

    364d0bdf248f7f0e275ccbf178e50e55cf76b13ec131a0f2156f20526ef24991

  • SHA512

    dc9259264f76d2007d5f8a6c82ed26c3679f1300c541de98a1701fc7d257d8e5a7def10a8dc31e378888ab2f7b3ddad2dd7b33ea7bc3dabe84becf563e593fd7

  • SSDEEP

    384:4GcNoUSIjH32l276Wms8khnn1LRNQPuNn1UjTj9cyI:4GSZT2Wj8SJIPuEjTh8

Malware Config

Targets

    • Target

      MV. TBN.exe

    • Size

      17KB

    • MD5

      3c1446661a4699bd8b1e30e50edb5033

    • SHA1

      362c1af3d3f43b4185e017b9a20f1bf73d0c2ab4

    • SHA256

      364d0bdf248f7f0e275ccbf178e50e55cf76b13ec131a0f2156f20526ef24991

    • SHA512

      dc9259264f76d2007d5f8a6c82ed26c3679f1300c541de98a1701fc7d257d8e5a7def10a8dc31e378888ab2f7b3ddad2dd7b33ea7bc3dabe84becf563e593fd7

    • SSDEEP

      384:4GcNoUSIjH32l276Wms8khnn1LRNQPuNn1UjTj9cyI:4GSZT2Wj8SJIPuEjTh8

    • Snake Keylogger

      Keylogger and Infostealer first seen in November 2020.

    • Snake Keylogger payload

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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.

    • Accesses Microsoft Outlook profiles

    • 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

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks