Analysis

  • max time kernel
    130s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-10-2023 15:27

General

  • Target

    30082023.exe

  • Size

    466KB

  • MD5

    4d5ce0ea9efcb7e3fdb61c32d1626748

  • SHA1

    5813b82a84f3c3d8f4b5a7af227026fc2c8c7f66

  • SHA256

    dc5e498d5465b93688dd366c5661cb624456b0982928c3778845b5d640ebf625

  • SHA512

    9739f69426a5c58aca0c4349a65417994376fd436c5cd55f2feaf30f8fe15ea80e6271fcd80f0c70f77b1f171324a11d730248429f55b80f842b8a71f2fe7be1

  • SSDEEP

    12288:zMYG3l6sMIBJCx6icVkGYJ/Zi/PBs6lD+S:zjGDFkiPB9lD+S

Malware Config

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    mail.gkas.com.tr
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Gkasteknik@2022

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 2 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 2 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 2 IoCs
  • Checks BIOS information in registry 2 TTPs 4 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Windows security modification 2 TTPs 3 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks whether UAC is enabled 1 TTPs 2 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.

  • Maps connected drives based on registry 3 TTPs 4 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 27 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs
  • System policy modification 1 TTPs 1 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\30082023.exe
    "C:\Users\Admin\AppData\Local\Temp\30082023.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Checks computer location settings
    • Adds Run key to start application
    • Maps connected drives based on registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2864
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:5064
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
        3⤵
        • Creates scheduled task(s)
        PID:1300
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpEDFA.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4124
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:3452
      • C:\Users\Admin\AppData\Roaming\svchost.exe
        "C:\Users\Admin\AppData\Roaming\svchost.exe"
        3⤵
        • UAC bypass
        • Windows security bypass
        • Looks for VirtualBox Guest Additions in registry
        • Looks for VMWare Tools registry key
        • Checks BIOS information in registry
        • Checks computer location settings
        • Executes dropped EXE
        • Windows security modification
        • Checks whether UAC is enabled
        • Maps connected drives based on registry
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        • System policy modification
        PID:3888
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\svchost.exe" -Force
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4276
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
          4⤵
          • Accesses Microsoft Outlook profiles
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • outlook_office_path
          • outlook_win_path
          PID:3308

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hcnarcpk.wbd.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpEDFA.tmp.bat

    Filesize

    151B

    MD5

    151ee8e38ccf84cc60e4292c92cf19f8

    SHA1

    c810defc115a2f2db7e53203472f15d4dee1ad36

    SHA256

    e58c5f7d86d2847b13519232e55dc4587e51e965b60ad72aa321c0ef4add7cc1

    SHA512

    f7ab7877aea20435a8d4e800107d8b322a7994f0d4c5d8b1ec3aa57dfd60648ea22eca6f8f2dd49c3114de34b6e8d74de7ecfab364c385e0234d6a8c448b618e

  • C:\Users\Admin\AppData\Roaming\svchost.exe

    Filesize

    466KB

    MD5

    4d5ce0ea9efcb7e3fdb61c32d1626748

    SHA1

    5813b82a84f3c3d8f4b5a7af227026fc2c8c7f66

    SHA256

    dc5e498d5465b93688dd366c5661cb624456b0982928c3778845b5d640ebf625

    SHA512

    9739f69426a5c58aca0c4349a65417994376fd436c5cd55f2feaf30f8fe15ea80e6271fcd80f0c70f77b1f171324a11d730248429f55b80f842b8a71f2fe7be1

  • C:\Users\Admin\AppData\Roaming\svchost.exe

    Filesize

    466KB

    MD5

    4d5ce0ea9efcb7e3fdb61c32d1626748

    SHA1

    5813b82a84f3c3d8f4b5a7af227026fc2c8c7f66

    SHA256

    dc5e498d5465b93688dd366c5661cb624456b0982928c3778845b5d640ebf625

    SHA512

    9739f69426a5c58aca0c4349a65417994376fd436c5cd55f2feaf30f8fe15ea80e6271fcd80f0c70f77b1f171324a11d730248429f55b80f842b8a71f2fe7be1

  • memory/2864-5-0x0000000005850000-0x000000000586A000-memory.dmp

    Filesize

    104KB

  • memory/2864-4-0x0000000005810000-0x0000000005848000-memory.dmp

    Filesize

    224KB

  • memory/2864-7-0x0000000005940000-0x00000000059A6000-memory.dmp

    Filesize

    408KB

  • memory/2864-6-0x0000000005FF0000-0x0000000006594000-memory.dmp

    Filesize

    5.6MB

  • memory/2864-12-0x0000000074520000-0x0000000074CD0000-memory.dmp

    Filesize

    7.7MB

  • memory/2864-3-0x0000000005A30000-0x0000000005A40000-memory.dmp

    Filesize

    64KB

  • memory/2864-1-0x0000000005770000-0x000000000580C000-memory.dmp

    Filesize

    624KB

  • memory/2864-2-0x0000000074520000-0x0000000074CD0000-memory.dmp

    Filesize

    7.7MB

  • memory/2864-0-0x0000000000D40000-0x0000000000DBA000-memory.dmp

    Filesize

    488KB

  • memory/3308-72-0x0000000005460000-0x0000000005470000-memory.dmp

    Filesize

    64KB

  • memory/3308-19-0x0000000000400000-0x0000000000424000-memory.dmp

    Filesize

    144KB

  • memory/3308-71-0x0000000074520000-0x0000000074CD0000-memory.dmp

    Filesize

    7.7MB

  • memory/3308-70-0x0000000006220000-0x000000000622A000-memory.dmp

    Filesize

    40KB

  • memory/3308-24-0x0000000074520000-0x0000000074CD0000-memory.dmp

    Filesize

    7.7MB

  • memory/3308-69-0x0000000006470000-0x0000000006502000-memory.dmp

    Filesize

    584KB

  • memory/3308-68-0x00000000062A0000-0x0000000006462000-memory.dmp

    Filesize

    1.8MB

  • memory/3308-67-0x0000000006080000-0x00000000060D0000-memory.dmp

    Filesize

    320KB

  • memory/3888-25-0x0000000074520000-0x0000000074CD0000-memory.dmp

    Filesize

    7.7MB

  • memory/3888-17-0x0000000074520000-0x0000000074CD0000-memory.dmp

    Filesize

    7.7MB

  • memory/4276-34-0x0000000005D20000-0x0000000006074000-memory.dmp

    Filesize

    3.3MB

  • memory/4276-59-0x00000000077E0000-0x00000000077F1000-memory.dmp

    Filesize

    68KB

  • memory/4276-39-0x00000000062C0000-0x00000000062DE000-memory.dmp

    Filesize

    120KB

  • memory/4276-40-0x0000000006350000-0x000000000639C000-memory.dmp

    Filesize

    304KB

  • memory/4276-41-0x0000000002980000-0x0000000002990000-memory.dmp

    Filesize

    64KB

  • memory/4276-42-0x0000000006890000-0x00000000068C2000-memory.dmp

    Filesize

    200KB

  • memory/4276-43-0x0000000070900000-0x000000007094C000-memory.dmp

    Filesize

    304KB

  • memory/4276-53-0x00000000068D0000-0x00000000068EE000-memory.dmp

    Filesize

    120KB

  • memory/4276-54-0x00000000074D0000-0x0000000007573000-memory.dmp

    Filesize

    652KB

  • memory/4276-55-0x0000000007C30000-0x00000000082AA000-memory.dmp

    Filesize

    6.5MB

  • memory/4276-56-0x00000000075E0000-0x00000000075FA000-memory.dmp

    Filesize

    104KB

  • memory/4276-57-0x0000000007650000-0x000000000765A000-memory.dmp

    Filesize

    40KB

  • memory/4276-58-0x0000000007860000-0x00000000078F6000-memory.dmp

    Filesize

    600KB

  • memory/4276-28-0x0000000005410000-0x0000000005476000-memory.dmp

    Filesize

    408KB

  • memory/4276-60-0x0000000007810000-0x000000000781E000-memory.dmp

    Filesize

    56KB

  • memory/4276-61-0x0000000007820000-0x0000000007834000-memory.dmp

    Filesize

    80KB

  • memory/4276-62-0x0000000007920000-0x000000000793A000-memory.dmp

    Filesize

    104KB

  • memory/4276-63-0x0000000007900000-0x0000000007908000-memory.dmp

    Filesize

    32KB

  • memory/4276-66-0x0000000074520000-0x0000000074CD0000-memory.dmp

    Filesize

    7.7MB

  • memory/4276-21-0x0000000074520000-0x0000000074CD0000-memory.dmp

    Filesize

    7.7MB

  • memory/4276-22-0x0000000002980000-0x0000000002990000-memory.dmp

    Filesize

    64KB

  • memory/4276-27-0x00000000052F0000-0x0000000005312000-memory.dmp

    Filesize

    136KB

  • memory/4276-26-0x0000000002980000-0x0000000002990000-memory.dmp

    Filesize

    64KB

  • memory/4276-23-0x0000000005580000-0x0000000005BA8000-memory.dmp

    Filesize

    6.2MB

  • memory/4276-18-0x0000000002990000-0x00000000029C6000-memory.dmp

    Filesize

    216KB