Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-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 8 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 9 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:1084
    • 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:1656

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1084-54-0x0000000001180000-0x000000000122A000-memory.dmp

    Filesize

    680KB

  • memory/1084-55-0x0000000001180000-0x000000000122A000-memory.dmp

    Filesize

    680KB

  • memory/1084-56-0x0000000000360000-0x0000000000361000-memory.dmp

    Filesize

    4KB

  • memory/1656-57-0x0000000000070000-0x00000000000AC000-memory.dmp

    Filesize

    240KB

  • memory/1656-58-0x0000000000070000-0x00000000000AC000-memory.dmp

    Filesize

    240KB

  • memory/1656-59-0x0000000000070000-0x00000000000AC000-memory.dmp

    Filesize

    240KB

  • memory/1656-60-0x0000000000070000-0x00000000000AC000-memory.dmp

    Filesize

    240KB

  • memory/1656-63-0x0000000000070000-0x00000000000AC000-memory.dmp

    Filesize

    240KB

  • memory/1656-66-0x0000000000070000-0x00000000000AC000-memory.dmp

    Filesize

    240KB

  • memory/1656-69-0x0000000000070000-0x00000000000AC000-memory.dmp

    Filesize

    240KB

  • memory/1656-70-0x0000000000070000-0x00000000000AC000-memory.dmp

    Filesize

    240KB

  • memory/1656-71-0x0000000000070000-0x00000000000AC000-memory.dmp

    Filesize

    240KB

  • memory/1656-72-0x0000000000580000-0x0000000000581000-memory.dmp

    Filesize

    4KB

  • memory/1656-73-0x0000000000581000-0x0000000000582000-memory.dmp

    Filesize

    4KB