General

  • Target

    de3258d448ac5d543c996a6b4c0fd6b8

  • Size

    3.3MB

  • Sample

    240325-rgw63aac88

  • MD5

    de3258d448ac5d543c996a6b4c0fd6b8

  • SHA1

    44b4fe0e0d731011467f2f0c831f83801c0d068c

  • SHA256

    9785139b6e8bc5f53da68bed1b78f0567aa00d0de965f8e802e038a1243853e6

  • SHA512

    71edbb9e13fcdb5f3a86d79446dc4a87c50438b64e7b3cb108fe543be5954e06d3f6f4e9d34135f6baeb8bc19eafa32263e673fae2fdaed547354571b1cffdc7

  • SSDEEP

    98304:1/xTTgkJENlhU7ZLsyEQrbRt64dtARJACo9x4RqsSTyIv:rTTguENAlLtPrb7Ri/ACo9mR+ys

Malware Config

Extracted

Family

44caliber

C2

https://discord.com/api/webhooks/877099784312328213/gbN3AhFr-HwOYeSmi-AjLnTIHhnG8GV5LfjEhIncHO-_rtFM2jafytOi5GkZCyhMgXTd

Targets

    • Target

      de3258d448ac5d543c996a6b4c0fd6b8

    • Size

      3.3MB

    • MD5

      de3258d448ac5d543c996a6b4c0fd6b8

    • SHA1

      44b4fe0e0d731011467f2f0c831f83801c0d068c

    • SHA256

      9785139b6e8bc5f53da68bed1b78f0567aa00d0de965f8e802e038a1243853e6

    • SHA512

      71edbb9e13fcdb5f3a86d79446dc4a87c50438b64e7b3cb108fe543be5954e06d3f6f4e9d34135f6baeb8bc19eafa32263e673fae2fdaed547354571b1cffdc7

    • SSDEEP

      98304:1/xTTgkJENlhU7ZLsyEQrbRt64dtARJACo9x4RqsSTyIv:rTTguENAlLtPrb7Ri/ACo9mR+ys

    • 44Caliber

      An open source infostealer written in C#.

    • Detects Echelon Stealer payload

    • Echelon

      Echelon is a .NET stealer that targets passwords from browsers, email and cryptocurrency clients.

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • 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

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Accesses Microsoft Outlook profiles

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Checks whether UAC is enabled

    • 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 NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks