General

  • Target

    0000060239911.js

  • Size

    3.2MB

  • Sample

    210118-b92xfks2bj

  • MD5

    071839cb9cb3d4e8abe9a7dcf3372ab3

  • SHA1

    1994584a026fd610d160c3e47575d4a2eef50d2a

  • SHA256

    513d393c4188ecea5e050a259a28f385d6e155772841cfd62698c1b3cf5aeadf

  • SHA512

    705485ca9ca9188a19cb37ed103e34107bf0edf7a1c76dd31ae75ea997fa95f0f3b397ccd1d652e311b37493d6c8a35115f2201f226eea2d30e265cd0c52ab5a

Malware Config

Targets

    • Target

      0000060239911.js

    • Size

      3.2MB

    • MD5

      071839cb9cb3d4e8abe9a7dcf3372ab3

    • SHA1

      1994584a026fd610d160c3e47575d4a2eef50d2a

    • SHA256

      513d393c4188ecea5e050a259a28f385d6e155772841cfd62698c1b3cf5aeadf

    • SHA512

      705485ca9ca9188a19cb37ed103e34107bf0edf7a1c76dd31ae75ea997fa95f0f3b397ccd1d652e311b37493d6c8a35115f2201f226eea2d30e265cd0c52ab5a

    • AgentTesla

      Agent Tesla is a remote access tool (RAT) written in visual basic.

    • WSHRAT

      WSHRAT is a variant of Houdini worm and has vbs and js variants.

    • Blocklisted process makes network request

    • Executes dropped EXE

    • Drops startup file

    • 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.

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

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Tasks