Analysis

  • max time kernel
    173s
  • max time network
    184s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 14:18

General

  • Target

    NRJHM5PF.exe

  • Size

    1.2MB

  • MD5

    f6792d895fd876b37613d49195da8fdb

  • SHA1

    b7b0b6b02087834c6d1a13b2707fbd1cf3107d84

  • SHA256

    fdbda792f1afe76690988d21cabb124f86ec84672c3b45576471ed50a0078e74

  • SHA512

    91cc3df47c15dde764b9897c4e2c7cba230907ade61841a8b2848942bbf262ec0b3c4ed09e9cd2cbeb90bc490c7ebad11e100dee99b08edff49e619a13dc90af

  • SSDEEP

    24576:5yGapn+w2CHo4K3azJotAxRnJA4VVZqdOp:DalOCHzK3qJotORJt1qdO

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5614016733:AAFKYwyZsUOPZn7HUmU3woh9nfNRuzEc-2Y/

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
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NRJHM5PF.exe
    "C:\Users\Admin\AppData\Local\Temp\NRJHM5PF.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2052
    • C:\Users\Admin\AppData\Local\Temp\NRJHM5PF.exe
      "C:\Users\Admin\AppData\Local\Temp\NRJHM5PF.exe"
      2⤵
        PID:616
      • C:\Users\Admin\AppData\Local\Temp\NRJHM5PF.exe
        "C:\Users\Admin\AppData\Local\Temp\NRJHM5PF.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:916

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\NRJHM5PF.exe.log

      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    • memory/616-137-0x0000000000000000-mapping.dmp

    • memory/916-138-0x0000000000000000-mapping.dmp

    • memory/916-139-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB

    • memory/916-141-0x0000000005CB0000-0x0000000005D16000-memory.dmp

      Filesize

      408KB

    • memory/916-142-0x00000000061E0000-0x0000000006230000-memory.dmp

      Filesize

      320KB

    • memory/2052-132-0x00000000001A0000-0x00000000002D2000-memory.dmp

      Filesize

      1.2MB

    • memory/2052-133-0x0000000005440000-0x00000000059E4000-memory.dmp

      Filesize

      5.6MB

    • memory/2052-134-0x0000000002830000-0x00000000028C2000-memory.dmp

      Filesize

      584KB

    • memory/2052-135-0x00000000028D0000-0x00000000028DA000-memory.dmp

      Filesize

      40KB

    • memory/2052-136-0x0000000008D50000-0x0000000008DEC000-memory.dmp

      Filesize

      624KB