General

  • Target

    15dbc954cd4f54abc55486ef11375fa6

  • Size

    25.5MB

  • Sample

    231230-mgf3mahbfn

  • MD5

    15dbc954cd4f54abc55486ef11375fa6

  • SHA1

    c671fac7354974f482b9852dfbd4c9204782f317

  • SHA256

    1e71f322863511ac34ab0013f3740b1921a9756f4b326d2184a8f6159e61ccff

  • SHA512

    f4988c3fe2d18cff76dd869e65c60b06c9943f88c92f29807ff6e29044f3a166e7b3c582793e1c1a56bb3e98e6c51edc85458ef809825fd694f15fec3bcf46ba

  • SSDEEP

    786432:XLtc+xXgVxnovLYeLV1yhoyVOvgWWv7S4:5cUI49xHyQJ4

Malware Config

Extracted

Family

44caliber

C2

https://discord.com/api/webhooks/870377028749242408/bsw2VmRGeiAIilnd9vwqpCOLMZO_5v4RLwcEnrTBTCpbNpQmrUG6iRNERPAwaRZbpXqc

Targets

    • Target

      15dbc954cd4f54abc55486ef11375fa6

    • Size

      25.5MB

    • MD5

      15dbc954cd4f54abc55486ef11375fa6

    • SHA1

      c671fac7354974f482b9852dfbd4c9204782f317

    • SHA256

      1e71f322863511ac34ab0013f3740b1921a9756f4b326d2184a8f6159e61ccff

    • SHA512

      f4988c3fe2d18cff76dd869e65c60b06c9943f88c92f29807ff6e29044f3a166e7b3c582793e1c1a56bb3e98e6c51edc85458ef809825fd694f15fec3bcf46ba

    • SSDEEP

      786432:XLtc+xXgVxnovLYeLV1yhoyVOvgWWv7S4:5cUI49xHyQJ4

    • 44Caliber

      An open source infostealer written in C#.

    • 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.

    • 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 cryptocurrency files/wallets, possible credential harvesting

    • 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