Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-11-2024 20:53

General

  • Target

    0f2800e7a761d58fc3d25abfce6a7e8e.exe

  • Size

    976KB

  • MD5

    0f2800e7a761d58fc3d25abfce6a7e8e

  • SHA1

    b6a8fa05d5e4c0028fdf61ebab6d4c469936e828

  • SHA256

    ccb058d87e0b36a4707237da61542397228f48434616320d0f77d67e6ac82a26

  • SHA512

    bd22454d9be466c9bda46c5fe6e4da10c0516f0b02187c41d9485ce5a69e6d38dcec21c2759b782aab88b060a9d74c7ec7f335e381b173c9bcbf44d03a51fdc2

  • SSDEEP

    24576:Rv6Lm2aNvVIx22wYGSiz4hNFXtWyDTjBFKzXZB:Rv5NvOcYGSiz4hNDWsTjSP

Malware Config

Extracted

Family

darkvision

C2

http://fiestagrandefm.com/ss/upload.php

45.88.91.87

Signatures

  • DarkVision Rat

    DarkVision Rat is a trojan written in C++.

  • Darkvision family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Uses the VBS compiler for execution 1 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\0f2800e7a761d58fc3d25abfce6a7e8e.exe
    "C:\Users\Admin\AppData\Local\Temp\0f2800e7a761d58fc3d25abfce6a7e8e.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:5040
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\zSrmNQa.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:924
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zSrmNQa" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC65D.tmp"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:3676
    • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exe
      C:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exe
      2⤵
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:2572
      • C:\Windows\EXPLORER.EXE
        C:\Windows\EXPLORER.EXE {93CD7538-7982-4E29-864C-F4709F7CEC94}
        3⤵
          PID:1880

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_3wu0tvvn.xrc.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmpC65D.tmp

      Filesize

      1KB

      MD5

      3f301c7613a5d36cedb1f4050a9d6471

      SHA1

      905e667e98a7e7edc53282203943cc5af3093d9b

      SHA256

      7849a2e2ee853f63d15a942d0263fa69393f38f6d03c89eaa49bf5e81797fffd

      SHA512

      ca043c1e0098a419102653685666f3585421f06dd13a4906b691406d47116e75d7fdd9d5c9f74eddafa55f53de7e66af32baa682e71fd71baca048c8cba17edb

    • memory/924-20-0x00007FFB93F40000-0x00007FFB94A01000-memory.dmp

      Filesize

      10.8MB

    • memory/924-37-0x00007FFB93F40000-0x00007FFB94A01000-memory.dmp

      Filesize

      10.8MB

    • memory/924-30-0x0000019737EA0000-0x0000019737EC2000-memory.dmp

      Filesize

      136KB

    • memory/924-24-0x000001971F7D0000-0x000001971F7E0000-memory.dmp

      Filesize

      64KB

    • memory/924-21-0x00007FFB93F40000-0x00007FFB94A01000-memory.dmp

      Filesize

      10.8MB

    • memory/1880-53-0x0000000002620000-0x0000000002723000-memory.dmp

      Filesize

      1.0MB

    • memory/1880-39-0x0000000002620000-0x0000000002723000-memory.dmp

      Filesize

      1.0MB

    • memory/1880-45-0x0000000002620000-0x0000000002723000-memory.dmp

      Filesize

      1.0MB

    • memory/1880-38-0x00000000008B0000-0x00000000008B1000-memory.dmp

      Filesize

      4KB

    • memory/2572-18-0x0000000140000000-0x0000000140076000-memory.dmp

      Filesize

      472KB

    • memory/2572-22-0x0000000140000000-0x0000000140076000-memory.dmp

      Filesize

      472KB

    • memory/2572-19-0x0000000140000000-0x0000000140076000-memory.dmp

      Filesize

      472KB

    • memory/2572-55-0x0000000140000000-0x0000000140076000-memory.dmp

      Filesize

      472KB

    • memory/2572-14-0x0000000140000000-0x0000000140076000-memory.dmp

      Filesize

      472KB

    • memory/2572-54-0x0000000140000000-0x0000000140076000-memory.dmp

      Filesize

      472KB

    • memory/2572-16-0x0000000140000000-0x0000000140076000-memory.dmp

      Filesize

      472KB

    • memory/5040-6-0x00000000038C0000-0x00000000038D6000-memory.dmp

      Filesize

      88KB

    • memory/5040-7-0x0000000001B40000-0x0000000001B54000-memory.dmp

      Filesize

      80KB

    • memory/5040-8-0x000000001EF70000-0x000000001F022000-memory.dmp

      Filesize

      712KB

    • memory/5040-5-0x00007FFB93F40000-0x00007FFB94A01000-memory.dmp

      Filesize

      10.8MB

    • memory/5040-4-0x00007FFB93F43000-0x00007FFB93F45000-memory.dmp

      Filesize

      8KB

    • memory/5040-3-0x0000000001AD0000-0x0000000001AF4000-memory.dmp

      Filesize

      144KB

    • memory/5040-2-0x00007FFB93F40000-0x00007FFB94A01000-memory.dmp

      Filesize

      10.8MB

    • memory/5040-1-0x0000000000B90000-0x0000000000C88000-memory.dmp

      Filesize

      992KB

    • memory/5040-23-0x00007FFB93F40000-0x00007FFB94A01000-memory.dmp

      Filesize

      10.8MB

    • memory/5040-0-0x00007FFB93F43000-0x00007FFB93F45000-memory.dmp

      Filesize

      8KB