Analysis

  • max time kernel
    147s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-06-2024 16:33

General

  • Target

    3b76f3aaf3d8f2f296cc272bbd031df5ea7126de65f2a40e8773aa155ca43601.exe

  • Size

    640KB

  • MD5

    82d1a111a163bd463d09f76865182045

  • SHA1

    442da7141a7fbebfb1c5e92c584f9aaf703ca9c9

  • SHA256

    3b76f3aaf3d8f2f296cc272bbd031df5ea7126de65f2a40e8773aa155ca43601

  • SHA512

    00a40d456b2507885d68d13ad3d9eb67c53f8262f732c654f37e98a33d77f62f3e7feb8cf9d4f75603333d6ac979a428967155f2fe688ae112a9f811036f9ada

  • SSDEEP

    12288:+mT/iFIsPAb/z/sPKLIRMprVf/lqC+JBeGUwLzaw3mKkQI7n+v1Fekem+ztyvrOf:rTkIKybU8mMprVHlqCjGUwLzl2mI7qds

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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.

  • 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3b76f3aaf3d8f2f296cc272bbd031df5ea7126de65f2a40e8773aa155ca43601.exe
    "C:\Users\Admin\AppData\Local\Temp\3b76f3aaf3d8f2f296cc272bbd031df5ea7126de65f2a40e8773aa155ca43601.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4724
    • C:\Users\Admin\AppData\Local\Temp\3b76f3aaf3d8f2f296cc272bbd031df5ea7126de65f2a40e8773aa155ca43601.exe
      "C:\Users\Admin\AppData\Local\Temp\3b76f3aaf3d8f2f296cc272bbd031df5ea7126de65f2a40e8773aa155ca43601.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4076

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\3b76f3aaf3d8f2f296cc272bbd031df5ea7126de65f2a40e8773aa155ca43601.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/4076-11-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/4076-19-0x00000000752A0000-0x0000000075A50000-memory.dmp

    Filesize

    7.7MB

  • memory/4076-18-0x0000000006D50000-0x0000000006DA0000-memory.dmp

    Filesize

    320KB

  • memory/4076-17-0x00000000752A0000-0x0000000075A50000-memory.dmp

    Filesize

    7.7MB

  • memory/4076-16-0x0000000005700000-0x0000000005766000-memory.dmp

    Filesize

    408KB

  • memory/4076-15-0x00000000752A0000-0x0000000075A50000-memory.dmp

    Filesize

    7.7MB

  • memory/4724-4-0x00000000752A0000-0x0000000075A50000-memory.dmp

    Filesize

    7.7MB

  • memory/4724-8-0x0000000006660000-0x000000000666C000-memory.dmp

    Filesize

    48KB

  • memory/4724-9-0x00000000066B0000-0x0000000006734000-memory.dmp

    Filesize

    528KB

  • memory/4724-10-0x0000000008E80000-0x0000000008F1C000-memory.dmp

    Filesize

    624KB

  • memory/4724-7-0x0000000005AA0000-0x0000000005AA8000-memory.dmp

    Filesize

    32KB

  • memory/4724-6-0x00000000054E0000-0x00000000054F2000-memory.dmp

    Filesize

    72KB

  • memory/4724-5-0x0000000005450000-0x000000000545A000-memory.dmp

    Filesize

    40KB

  • memory/4724-14-0x00000000752A0000-0x0000000075A50000-memory.dmp

    Filesize

    7.7MB

  • memory/4724-0-0x00000000752AE000-0x00000000752AF000-memory.dmp

    Filesize

    4KB

  • memory/4724-3-0x0000000005500000-0x0000000005592000-memory.dmp

    Filesize

    584KB

  • memory/4724-2-0x0000000005AB0000-0x0000000006054000-memory.dmp

    Filesize

    5.6MB

  • memory/4724-1-0x00000000009D0000-0x0000000000A76000-memory.dmp

    Filesize

    664KB