Analysis

  • max time kernel
    143s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-12-2023 16:47

General

  • Target

    mv Sider Capri Particulars.exe

  • Size

    432KB

  • MD5

    791d56774e02ea0ab8fe059c85cc2ebd

  • SHA1

    b9bc54f8cc756e694a9e986416ff69da390eba65

  • SHA256

    504b7897b009fab8381a73f6298317e2d5245a98b2a27530e66233f682671c45

  • SHA512

    b404955b6f0195397f796c7c51409e71d6040b36a8c5e37f8f8c710f249be828d95a13d49a62d1f84ae7febe77290fa87ad1c14ee977bac7713cb8e972e404d3

  • SSDEEP

    12288:E2t+axyVJLzNnZa693JxwTIAqf2HQGZwLs41:vwVJLzNno695x+I32XbQ

Malware Config

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 2 IoCs
  • Drops startup file 2 IoCs
  • 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 1 IoCs

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

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\mv Sider Capri Particulars.exe
    "C:\Users\Admin\AppData\Local\Temp\mv Sider Capri Particulars.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3004
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
      "Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\mv Sider Capri Particulars.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe'
      2⤵
      • Drops startup file
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1108
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:2616

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_e0zv0mjf.lwv.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/1108-8-0x00000000751D0000-0x0000000075980000-memory.dmp

    Filesize

    7.7MB

  • memory/1108-12-0x0000000004F60000-0x0000000005588000-memory.dmp

    Filesize

    6.2MB

  • memory/1108-32-0x0000000005E30000-0x0000000005E7C000-memory.dmp

    Filesize

    304KB

  • memory/1108-25-0x00000000059E0000-0x0000000005D34000-memory.dmp

    Filesize

    3.3MB

  • memory/1108-31-0x0000000005DF0000-0x0000000005E0E000-memory.dmp

    Filesize

    120KB

  • memory/1108-36-0x0000000006DC0000-0x0000000006DE2000-memory.dmp

    Filesize

    136KB

  • memory/1108-7-0x00000000024B0000-0x00000000024E6000-memory.dmp

    Filesize

    216KB

  • memory/1108-14-0x0000000005700000-0x0000000005766000-memory.dmp

    Filesize

    408KB

  • memory/1108-9-0x0000000004920000-0x0000000004930000-memory.dmp

    Filesize

    64KB

  • memory/1108-35-0x00000000062E0000-0x00000000062FA000-memory.dmp

    Filesize

    104KB

  • memory/1108-11-0x0000000004920000-0x0000000004930000-memory.dmp

    Filesize

    64KB

  • memory/1108-34-0x0000000006350000-0x00000000063E6000-memory.dmp

    Filesize

    600KB

  • memory/1108-13-0x0000000004F30000-0x0000000004F52000-memory.dmp

    Filesize

    136KB

  • memory/1108-40-0x00000000751D0000-0x0000000075980000-memory.dmp

    Filesize

    7.7MB

  • memory/1108-15-0x0000000005770000-0x00000000057D6000-memory.dmp

    Filesize

    408KB

  • memory/2616-27-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/2616-33-0x00000000055C0000-0x00000000055D0000-memory.dmp

    Filesize

    64KB

  • memory/2616-41-0x00000000751D0000-0x0000000075980000-memory.dmp

    Filesize

    7.7MB

  • memory/2616-42-0x00000000055C0000-0x00000000055D0000-memory.dmp

    Filesize

    64KB

  • memory/2616-30-0x00000000751D0000-0x0000000075980000-memory.dmp

    Filesize

    7.7MB

  • memory/2616-43-0x0000000006620000-0x0000000006670000-memory.dmp

    Filesize

    320KB

  • memory/2616-44-0x0000000006840000-0x0000000006A02000-memory.dmp

    Filesize

    1.8MB

  • memory/2616-45-0x00000000066A0000-0x00000000066AA000-memory.dmp

    Filesize

    40KB

  • memory/3004-10-0x00000000751D0000-0x0000000075980000-memory.dmp

    Filesize

    7.7MB

  • memory/3004-29-0x00000000751D0000-0x0000000075980000-memory.dmp

    Filesize

    7.7MB

  • memory/3004-0-0x0000000000550000-0x00000000005C2000-memory.dmp

    Filesize

    456KB

  • memory/3004-4-0x0000000005650000-0x0000000005BF4000-memory.dmp

    Filesize

    5.6MB

  • memory/3004-1-0x00000000751D0000-0x0000000075980000-memory.dmp

    Filesize

    7.7MB

  • memory/3004-3-0x0000000005090000-0x00000000050A0000-memory.dmp

    Filesize

    64KB

  • memory/3004-26-0x0000000005040000-0x0000000005048000-memory.dmp

    Filesize

    32KB

  • memory/3004-6-0x00000000051E0000-0x000000000527C000-memory.dmp

    Filesize

    624KB

  • memory/3004-5-0x00000000050A0000-0x0000000005132000-memory.dmp

    Filesize

    584KB

  • memory/3004-2-0x0000000004F30000-0x0000000004F86000-memory.dmp

    Filesize

    344KB