Resubmissions

12-05-2023 06:08

230512-gvv6taca58 10

11-05-2023 18:52

230511-xh22laaa82 10

General

  • Target

    Understregninger.exe.bin

  • Size

    322KB

  • Sample

    230511-xh22laaa82

  • MD5

    4ab4a3d1894572436b1af077779f4051

  • SHA1

    271cd8521dab65d5a9d127c5296acea983d29512

  • SHA256

    f8082dc1210616c55008edc73e1ca4966cd8575e2425ed72f71f28b97f71172a

  • SHA512

    4564299080a7d763da23b2ececa16927c86e8801167e9bcb82a3fa6a78e322447ae8991a677d8bb4cd519c972c0157f6a966f7b2301a985c22c14e2b6460d2a2

  • SSDEEP

    6144:ex4veXIVOy5YUVFAEhpjyecwKz0CawKMeedSvR:o4GXfg1X1cw40sFPd4

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6168599451:AAGNek51QMYNhL09hhnCcUs8a_1nMuD4d9s/

Targets

    • Target

      Understregninger.exe.bin

    • Size

      322KB

    • MD5

      4ab4a3d1894572436b1af077779f4051

    • SHA1

      271cd8521dab65d5a9d127c5296acea983d29512

    • SHA256

      f8082dc1210616c55008edc73e1ca4966cd8575e2425ed72f71f28b97f71172a

    • SHA512

      4564299080a7d763da23b2ececa16927c86e8801167e9bcb82a3fa6a78e322447ae8991a677d8bb4cd519c972c0157f6a966f7b2301a985c22c14e2b6460d2a2

    • SSDEEP

      6144:ex4veXIVOy5YUVFAEhpjyecwKz0CawKMeedSvR:o4GXfg1X1cw40sFPd4

    • AgentTesla

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

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

    • Checks QEMU agent file

      Checks presence of QEMU agent, possibly to detect virtualization.

    • Loads dropped DLL

    • Accesses Microsoft Outlook profiles

    • Checks installed software on the system

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

    • 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 NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks