Analysis

  • max time kernel
    144s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-07-2023 06:49

General

  • Target

    Purchase Inquiry-Harman, Tijuana Plant55.exe

  • Size

    639KB

  • MD5

    831693ff2e495502133ebd3ffa93e618

  • SHA1

    cf9799fb785d422aa4fa67de3e547d76b2aed0c5

  • SHA256

    192356050027cf305acd427d9afa09fc4bf2bebe1e2eda711554f720e281a83d

  • SHA512

    dd0482a5f8daaafcc3f1ac8389ee6fd9f3ae4235ece926554568883dc25882f2b304b1566e1fefa808326e63e5e0a5fa6d1e2a152b7d597b5a2ed514988ffff3

  • SSDEEP

    12288:wmWKtpStBJKSCzo3nk7sYc/2v2LX7s3jnlTN/qEa:1ppSXJi8kgYcOeLIlTpj

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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
  • Adds Run key to start application 2 TTPs 1 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 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\Purchase Inquiry-Harman, Tijuana Plant55.exe
    "C:\Users\Admin\AppData\Local\Temp\Purchase Inquiry-Harman, Tijuana Plant55.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:708
    • C:\Users\Admin\AppData\Local\Temp\Purchase Inquiry-Harman, Tijuana Plant55.exe
      "C:\Users\Admin\AppData\Local\Temp\Purchase Inquiry-Harman, Tijuana Plant55.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:1860

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Purchase Inquiry-Harman, Tijuana Plant55.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/708-139-0x0000000008960000-0x00000000089FC000-memory.dmp

    Filesize

    624KB

  • memory/708-135-0x0000000004C00000-0x0000000004C92000-memory.dmp

    Filesize

    584KB

  • memory/708-136-0x0000000004B80000-0x0000000004B8A000-memory.dmp

    Filesize

    40KB

  • memory/708-137-0x0000000004B00000-0x0000000004B10000-memory.dmp

    Filesize

    64KB

  • memory/708-138-0x0000000004B00000-0x0000000004B10000-memory.dmp

    Filesize

    64KB

  • memory/708-133-0x0000000000120000-0x00000000001C6000-memory.dmp

    Filesize

    664KB

  • memory/708-134-0x0000000005110000-0x00000000056B4000-memory.dmp

    Filesize

    5.6MB

  • memory/1860-140-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/1860-143-0x00000000051B0000-0x0000000005216000-memory.dmp

    Filesize

    408KB

  • memory/1860-144-0x0000000005310000-0x0000000005320000-memory.dmp

    Filesize

    64KB

  • memory/1860-146-0x0000000006840000-0x0000000006890000-memory.dmp

    Filesize

    320KB

  • memory/1860-147-0x0000000006A60000-0x0000000006C22000-memory.dmp

    Filesize

    1.8MB

  • memory/1860-148-0x0000000005310000-0x0000000005320000-memory.dmp

    Filesize

    64KB