Resubmissions

07/06/2024, 15:13

240607-slps8aac5v10

07/06/2024, 15:11

240607-sk3zfsbb9910

07/06/2024, 15:08

240607-sh7vmaac2s10

07/06/2024, 15:05

240607-sgnqcsbb6510

General

  • Target
    Nicht bestätigt 879324.crdownload
  • Size 1.4MB
  • Sample240607-sh7vmaac2s
  • SHA256 5a32b1864bcb2d237aca956c3b7474c2de484c38cbaa608ab5ffc71214bae2b8
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Language
  • ps1

Source
URLs
  • ps1.dropper

    https://rentry.org/lem61111111111/raw

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • exe.dropper

    https://bitbucket.org/43g34g34g34/34g34g34g34g/raw/e946dd91d069dd0a14070ddbc4920354650bd041/lem.rar

Targets

    • Target
      Zeus 4.7.2.exe
    • Size 173KB
    • SHA256 265013eb61e407130b8fe723809549000ffe4ad96ef6c5ad1945e2727cee5aa0
    • MD5 SHA1 SHA512 SSDEEP
    • Rhadamanthys

      Rhadamanthys is an info stealer written in C++ first seen in August 2022.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Creates new service(s)

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Stops running service(s)

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Executes dropped EXE

    • 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 cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

    • Maps connected drives based on registry

      Disk information is often read in order to detect sandboxing environments.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    • Target
      ZeusHex-GUI.dll
    • Size 1.3MB
    • SHA256 7d32d13d123871650794a1e172adc70bc8dafbdb762f49d889f813844d532b20
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10

MITRE ATT&CK Enterprise v15

Tasks