Overview

overview

10

Static

static

10

2025-01-23...de.exe

windows7-x64

9

2025-01-23...de.exe

windows10-2004-x64

9

Analysis

  • max time kernel
    146s
  • 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
    23-01-2025 19:31

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General

  • Target

    2025-01-23_3b7bbcc792998c87d854a9587d066d2e_darkside.exe

  • Size

    160KB

  • MD5

    3b7bbcc792998c87d854a9587d066d2e

  • SHA1

    0b3e8f3c71d3fbfa02ad9cef1f3cbaa83c8d2621

  • SHA256

    130d6de205082cf8be9c58f327f84080af79f2ebf6f50c83e23aa142f2247cd8

  • SHA512

    56d74eef6efb89837c048b1aa91358749992c1e41bc82fe646924efb16c7e32a1d4eeaeeb7d82a0a49314a4f3c47b909e7b1271acb40d1ae8d1c1755c8929ee7

  • SSDEEP

    3072:TDDDDDDDDDDDDDDDDDDDE45d/t6sVkgZqltP3368enHx6A2eyKQnWwAYEW:95d/zugZqll30Hw3eyZWwAY

Score
9/10
defense_evasiondiscoveryransomware

Malware Config

Signatures

  • Renames multiple (138) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Drops desktop.ini file(s) 2 IoCs
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

    defense_evasion
  • Drops file in System32 directory 4 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
    ransomware
  • Suspicious use of NtSetInformationThreadHideFromDebugger 12 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies Control Panel 2 IoCs
    defense_evasion
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious behavior: RenamesItself 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 13 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-01-23_3b7bbcc792998c87d854a9587d066d2e_darkside.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-01-23_3b7bbcc792998c87d854a9587d066d2e_darkside.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Sets desktop wallpaper using registry
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3464
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:3696
    • C:\ProgramData\C2A5.tmp
      "C:\ProgramData\C2A5.tmp"
      2⤵
      • Checks computer location settings
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:960
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\C2A5.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3460
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3684
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
    1⤵
      PID:2896
    • C:\Windows\system32\printfilterpipelinesvc.exe
      C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
      1⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:1944
      • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
        /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{7907D827-2A8A-469A-8A65-0603842DA49A}.xps" 133821343103700000
        2⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        PID:448

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\$Recycle.Bin\S-1-5-21-493223053-2004649691-1575712786-1000\IIIIIIIIIII
      Filesize

      129B

      MD5

      936a9612d9df2d33d29bfcc44f38a522

      SHA1

      f3d548f4209063631c3d166579ec8b90770d182a

      SHA256

      62b535c0a40dbb591d99a6a3a46325cad7a70cfb3da056d4cca8ce963950a1e3

      SHA512

      931fa951d304cfc7a29a774f8723986dea967c11d357cf5980803a22f91da042da2d6d4b193600fd54245ada0026ba84076da8353243ebdb0ef4507232b8f798

      Download Submit

    • C:\ProgramData\C2A5.tmp
      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

      Download Submit

    • C:\Users\Admin\AppData\Local\Temp\EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
      Filesize

      160KB

      MD5

      dc2783d333d442b92ae37b016ce7bafe

      SHA1

      20e4b63fe2963722dda64d1f0aff21e927794195

      SHA256

      6c09c59ffb1ff20fd608d44f4a6d9839d966237eeef9450600740f1d69f64b50

      SHA512

      a312127cbc44b6ed28992451d6bd194826cabd3716dabe15b03636f9874d25c266ed5ec786263968b4f6ecf5d7de434798fc3df34e9177efe93d2f570255f42c

      Download Submit

    • C:\Users\PTfidxFX1.README.txt
      Filesize

      6KB

      MD5

      4982ff70a41e690be73bc665ca47222e

      SHA1

      e1b0a6e5f5e0347d2d1371f05692533d8434703f

      SHA256

      e8c09e6cec25e587f698d9a660c6ff4ecc16d75cab3e1cacd9fa1fe8e553dcca

      SHA512

      74e101bd1a816e19d994a578a9f63fd866462b51270a67c4b3fc232457ad7fef50133477198c3d9ecc933e61aabace651ee1dbee0dc79152b814af7e5ac87fbc

      Download Submit

    • F:\$RECYCLE.BIN\S-1-5-21-493223053-2004649691-1575712786-1000\DDDDDDDDDDD
      Filesize

      129B

      MD5

      637c551be7bc8ffe73f4fec76628d8b2

      SHA1

      a3ed5253a0377db9114c2dd44fafe4548451a029

      SHA256

      3975b0eb05956f6d7e465106226a959cebfb44aba16561f637ecb8e8eea61130

      SHA512

      96f2af822389798164952cfd7b1be8acebe00692cb5c046a322a17520039a05ac14f54e070116119d1424a0c7e5393a56d86de56b51e9b97b4c69c5d152fb3ca

      Download Submit

    • memory/448-303-0x00007FFC5E270000-0x00007FFC5E280000-memory.dmp

      Filesize

      64KB

      Download

    • memory/448-302-0x00007FFC5E270000-0x00007FFC5E280000-memory.dmp

      Filesize

      64KB

      Download

    • memory/448-306-0x00007FFC5E270000-0x00007FFC5E280000-memory.dmp

      Filesize

      64KB

      Download

    • memory/448-308-0x00007FFC5E270000-0x00007FFC5E280000-memory.dmp

      Filesize

      64KB

      Download

    • memory/448-305-0x00007FFC5E270000-0x00007FFC5E280000-memory.dmp

      Filesize

      64KB

      Download

    • memory/448-338-0x00007FFC5B910000-0x00007FFC5B920000-memory.dmp

      Filesize

      64KB

      Download

    • memory/448-339-0x00007FFC5B910000-0x00007FFC5B920000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3464-287-0x0000000002F80000-0x0000000002F90000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3464-289-0x0000000002F80000-0x0000000002F90000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3464-288-0x0000000002F80000-0x0000000002F90000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3464-0-0x0000000002F80000-0x0000000002F90000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3464-1-0x0000000002F80000-0x0000000002F90000-memory.dmp

      Filesize

      64KB

      Download

    • memory/3464-2-0x0000000002F80000-0x0000000002F90000-memory.dmp

      Filesize

      64KB

      Download