Analysis

  • max time kernel
    128s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-02-2023 14:06

General

  • Target

    861b16dbb63eac1a7b1256018679e88a7a7434491f86d3ab8fb664cbb03874e1.exe

  • Size

    720KB

  • MD5

    042e7c28f1bdf5bd7eb6c050a18bde92

  • SHA1

    bde9069ebcecd98751e66655aa11401c29731dbd

  • SHA256

    861b16dbb63eac1a7b1256018679e88a7a7434491f86d3ab8fb664cbb03874e1

  • SHA512

    b1ed1fa6ad1c0461da28450b174dbdda2f7c3981533bc1dbd06128a8a79321a744447419e69cf236812b6f2d9f2f038e2aea7acd3b08cb6d85cf51e2ddaea701

  • SSDEEP

    12288:MXmkpZX2jjeh+8DVWJBtESRr2DTSVKjAiSGVHWeh3ih9HXA:AZmeh9WJIi1ojAiBVHBYTQ

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5056459562:AAHQW9wJvHEkQsnxuML0xV3IDA6-DUuUNFI/sendDocument

Signatures

  • AgentTesla

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

  • AgentTesla payload 1 IoCs
  • Drops file in Drivers directory 1 IoCs
  • 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 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\861b16dbb63eac1a7b1256018679e88a7a7434491f86d3ab8fb664cbb03874e1.exe
    "C:\Users\Admin\AppData\Local\Temp\861b16dbb63eac1a7b1256018679e88a7a7434491f86d3ab8fb664cbb03874e1.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:376
    • C:\Users\Admin\AppData\Local\Temp\861b16dbb63eac1a7b1256018679e88a7a7434491f86d3ab8fb664cbb03874e1.exe
      "C:\Users\Admin\AppData\Local\Temp\861b16dbb63eac1a7b1256018679e88a7a7434491f86d3ab8fb664cbb03874e1.exe"
      2⤵
      • Drops file in Drivers directory
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4088

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\861b16dbb63eac1a7b1256018679e88a7a7434491f86d3ab8fb664cbb03874e1.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/376-132-0x0000000000780000-0x000000000083A000-memory.dmp

    Filesize

    744KB

  • memory/376-133-0x0000000005690000-0x0000000005C34000-memory.dmp

    Filesize

    5.6MB

  • memory/376-134-0x00000000051E0000-0x0000000005272000-memory.dmp

    Filesize

    584KB

  • memory/376-135-0x0000000005300000-0x000000000530A000-memory.dmp

    Filesize

    40KB

  • memory/376-136-0x0000000007980000-0x0000000007A1C000-memory.dmp

    Filesize

    624KB

  • memory/4088-137-0x0000000000000000-mapping.dmp

  • memory/4088-138-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/4088-140-0x0000000006750000-0x00000000067B6000-memory.dmp

    Filesize

    408KB

  • memory/4088-141-0x0000000006910000-0x0000000006960000-memory.dmp

    Filesize

    320KB