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Analysis

  • max time kernel
    145s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/06/2023, 09:44

General

  • Target

    NEW PO - 4610926543.exe

  • Size

    785KB

  • MD5

    440cd930743d1b0c91c6d7396eaf23e0

  • SHA1

    f2cbcde2047dbba83c4ba61543c1a10e4286cafc

  • SHA256

    65370cfa1e08f458d53cb661cf02054d9324f155a7bbf6505b4da5c2f9492385

  • SHA512

    997d4f9e3649d6daff61b54da347e4c79e61ecc8000ce57219800db7222c7dbded6ee2a59e93f71fd1650cf1fa7ca594cb22cdb9a04ac3f6a8e21b211ee48148

  • SSDEEP

    24576:50biRoSErVxIE5+wqAWxE3YSKeE6xna9I6vfY:5y4oRrjIw3qjnReP+vfY

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • 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\NEW PO - 4610926543.exe
    "C:\Users\Admin\AppData\Local\Temp\NEW PO - 4610926543.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1472
    • C:\Users\Admin\AppData\Local\Temp\NEW PO - 4610926543.exe
      "C:\Users\Admin\AppData\Local\Temp\NEW PO - 4610926543.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1456

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\NEW PO - 4610926543.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/1456-143-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1456-149-0x0000000005830000-0x0000000005840000-memory.dmp

    Filesize

    64KB

  • memory/1456-148-0x0000000006E20000-0x0000000006E70000-memory.dmp

    Filesize

    320KB

  • memory/1456-147-0x0000000005830000-0x0000000005840000-memory.dmp

    Filesize

    64KB

  • memory/1456-146-0x0000000005780000-0x00000000057E6000-memory.dmp

    Filesize

    408KB

  • memory/1472-139-0x0000000005080000-0x000000000508A000-memory.dmp

    Filesize

    40KB

  • memory/1472-142-0x00000000052B0000-0x00000000052C0000-memory.dmp

    Filesize

    64KB

  • memory/1472-141-0x00000000052B0000-0x00000000052C0000-memory.dmp

    Filesize

    64KB

  • memory/1472-140-0x0000000005360000-0x00000000053FC000-memory.dmp

    Filesize

    624KB

  • memory/1472-136-0x0000000000620000-0x00000000006EA000-memory.dmp

    Filesize

    808KB

  • memory/1472-138-0x0000000005090000-0x0000000005122000-memory.dmp

    Filesize

    584KB

  • memory/1472-137-0x00000000055A0000-0x0000000005B44000-memory.dmp

    Filesize

    5.6MB