Analysis

  • max time kernel
    118s
  • max time network
    188s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    31-12-2021 10:24

General

  • Target

    3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe

  • Size

    300.0MB

  • MD5

    02991d493aedc4e3b544cf5b9ee57499

  • SHA1

    1de6c330b46ac1de2ec149cdc5c3c4f3da979863

  • SHA256

    3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a

  • SHA512

    78ba8d96f2c2a91e951980abff59b256ab5e4297bbc12ca9f6a9fcc54036391b177907d74061459a44d2527c92bb47f8ef13a69ef8500fd303dfc41a1c89300d

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot2049439171:AAHTF-OzMCy9i3S0b0hmaVc_mUsY0h6Ue_w/sendDocument

Signatures

  • AgentTesla

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

  • AgentTesla Payload 5 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe
    "C:\Users\Admin\AppData\Local\Temp\3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2792
    • C:\Users\Admin\AppData\Local\Temp\3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe
      "C:\Users\Admin\AppData\Local\Temp\3a4fc42fdb5a73034c00e4d709dad5641ca8ec64c0684fa5ce5138551dd3f47a.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1100

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1100-130-0x0000000005890000-0x0000000005D8E000-memory.dmp

    Filesize

    5.0MB

  • memory/1100-131-0x0000000005CE0000-0x0000000005CF8000-memory.dmp

    Filesize

    96KB

  • memory/1100-127-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1100-128-0x0000000005D90000-0x000000000628E000-memory.dmp

    Filesize

    5.0MB

  • memory/1100-126-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1100-134-0x0000000001640000-0x000000000164A000-memory.dmp

    Filesize

    40KB

  • memory/1100-124-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1100-135-0x0000000005890000-0x0000000005D8E000-memory.dmp

    Filesize

    5.0MB

  • memory/1100-133-0x0000000006BA0000-0x0000000006C32000-memory.dmp

    Filesize

    584KB

  • memory/1100-132-0x0000000006480000-0x00000000064E6000-memory.dmp

    Filesize

    408KB

  • memory/1100-129-0x0000000005930000-0x00000000059CC000-memory.dmp

    Filesize

    624KB

  • memory/2792-123-0x0000000004FF0000-0x0000000004FFA000-memory.dmp

    Filesize

    40KB

  • memory/2792-118-0x0000000000160000-0x000000000020A000-memory.dmp

    Filesize

    680KB

  • memory/2792-121-0x0000000004C90000-0x0000000004D22000-memory.dmp

    Filesize

    584KB

  • memory/2792-120-0x00000000050F0000-0x00000000055EE000-memory.dmp

    Filesize

    5.0MB

  • memory/2792-119-0x0000000000160000-0x000000000020A000-memory.dmp

    Filesize

    680KB

  • memory/2792-122-0x0000000004B80000-0x0000000004B81000-memory.dmp

    Filesize

    4KB