General

  • Target

    1f2a8237d80c320b6c6ca9c3edeebc244dd3c6708e851a6798263c619eae9aca

  • Size

    1.5MB

  • Sample

    231102-nxhrtsdc33

  • MD5

    5a59e468b8d917cb8ab8283f4cc3c73a

  • SHA1

    544420b225c36f3659357534d992cc2e2282b7c0

  • SHA256

    1f2a8237d80c320b6c6ca9c3edeebc244dd3c6708e851a6798263c619eae9aca

  • SHA512

    4f3852de36ad5c486ed8094c0de5ac77fd2e0efdb22ce2cc26bf16628c21b7ac5425dc1634696639b9c62f3e5af350a9c3c48125326bb5801cf3d98a42665bfc

  • SSDEEP

    49152:Fsva6rr9EVAfGqEcBD2JS1NPa/LOj79eB:Fsy6GV32pPReB

Malware Config

Extracted

Family

44caliber

C2

https://discord.com/api/webhooks/1169532958714105867/1ybbaEcwmEndkiHlxdGAYEwGK_q_-J5R_WsnfnPVVZlR8Zo9npE1_nuHQba2_1sthVX_

Targets

    • Target

      1f2a8237d80c320b6c6ca9c3edeebc244dd3c6708e851a6798263c619eae9aca

    • Size

      1.5MB

    • MD5

      5a59e468b8d917cb8ab8283f4cc3c73a

    • SHA1

      544420b225c36f3659357534d992cc2e2282b7c0

    • SHA256

      1f2a8237d80c320b6c6ca9c3edeebc244dd3c6708e851a6798263c619eae9aca

    • SHA512

      4f3852de36ad5c486ed8094c0de5ac77fd2e0efdb22ce2cc26bf16628c21b7ac5425dc1634696639b9c62f3e5af350a9c3c48125326bb5801cf3d98a42665bfc

    • SSDEEP

      49152:Fsva6rr9EVAfGqEcBD2JS1NPa/LOj79eB:Fsy6GV32pPReB

    • 44Caliber

      An open source infostealer written in C#.

    • 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.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • 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