Analysis

  • max time kernel
    66s
  • max time network
    22s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    16-09-2024 16:47

General

  • Target

    2024-09-16_acc4a833d7fcb673575e7f367c84975e_darkside.exe

  • Size

    146KB

  • MD5

    acc4a833d7fcb673575e7f367c84975e

  • SHA1

    25511d16f72bb726e2ebec2fd5606f870b86c7c2

  • SHA256

    afccf40b9f82b11ee3ab70712540d3690f7cb75851aad9a882c17d57b105752b

  • SHA512

    19b41b81ba99183e4726d5fb671e447a6a12e8c6aba5aa61972aab916a452f10f5ce6c7abf84f05310f33e32aa28b161ae49d7864d16e4371cb6f35e2d8fab33

  • SSDEEP

    3072:76glyuxE4GsUPnliByocWepsqiRrQ4Kdx:76gDBGpvEByocWeWqi24m

Malware Config

Signatures

  • Renames multiple (354) files with added filename extension

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • 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.

  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
  • 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.

  • Modifies Control Panel 2 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious behavior: RenamesItself 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-16_acc4a833d7fcb673575e7f367c84975e_darkside.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-16_acc4a833d7fcb673575e7f367c84975e_darkside.exe"
    1⤵
    • Loads dropped DLL
    • 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:2540
    • C:\ProgramData\F96C.tmp
      "C:\ProgramData\F96C.tmp"
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:992
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\F96C.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1400
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x14c
    1⤵
      PID:572

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\$Recycle.Bin\S-1-5-21-2703099537-420551529-3771253338-1000\IIIIIIIIIII

      Filesize

      129B

      MD5

      1241fa2ca6cb23ab626958867c3f838a

      SHA1

      642c81596dee993a4153151f299f0036ce6ddf96

      SHA256

      0e8addae800a93cba596b52fa25a947c68b83529972c132b4b45703b2db2a8f8

      SHA512

      3c78fd8ab57308b7fd20588b7783bcf18c9265a961bdba86d5a779a25cd7b2c55bc74d6506aa0ade096f0492b9b71567d60954ddf139f9f9696d7b131cef73ae

    • C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD

      Filesize

      146KB

      MD5

      e3bf10197e057fef32788687609e3654

      SHA1

      333c61c0349e7cdda4b5f62251bcf1e158eb9d5b

      SHA256

      5a8552cb254d9b963fcedb0f426fd9a771e7caeae277980a4b2b50612293ef04

      SHA512

      0ccdd68ebb051917814365d24bb27a8092034a7dfb6449c145a5f667106312296eaa84c78dce4472985c8d39fdcda308c20646f33ab675aacc6d74d77c48e67b

    • C:\m4ON32nMm.README.txt

      Filesize

      343B

      MD5

      72b1ffaeb7de456483f491ecceadb088

      SHA1

      ee1953abc295245ab01f35a4a823883826bf2b41

      SHA256

      eb892eac9899b995047733bb17acd4945eb42b7b49f2ee8ad52b8026bc0297a7

      SHA512

      c0e7cad617cf1490bb25fc47936edc3ae164b190ed34f2d2a50e7e84ce6e0d6712a6ba9ab351cca1589266078326a00317516c53fecf96f20eaefe15e92ce445

    • F:\$RECYCLE.BIN\S-1-5-21-2703099537-420551529-3771253338-1000\DDDDDDDDDDD

      Filesize

      129B

      MD5

      74a47e85ca2de85a993649c72136a572

      SHA1

      79e6a3f5168f57664d18c8d27b5c2d51dcdc1da1

      SHA256

      458210db9d3129f0c315df49815de2e07aeacfc62f8b1a47f01527ead8d84d2f

      SHA512

      434834a8edd1c9ec9cb4748ec0c8629c79045d41d877c47a315cb73cab4366c6004b8ec07e257f0e9fb1a1c713adde4d026b2b5fa51283fb390d0d5c17a57798

    • \ProgramData\F96C.tmp

      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

    • memory/992-883-0x000000007EF20000-0x000000007EF21000-memory.dmp

      Filesize

      4KB

    • memory/992-882-0x000000007EF80000-0x000000007EF81000-memory.dmp

      Filesize

      4KB

    • memory/992-881-0x0000000000380000-0x00000000003C0000-memory.dmp

      Filesize

      256KB

    • memory/992-880-0x0000000000380000-0x00000000003C0000-memory.dmp

      Filesize

      256KB

    • memory/992-879-0x000000007EFA0000-0x000000007EFA1000-memory.dmp

      Filesize

      4KB

    • memory/992-913-0x000000007EF60000-0x000000007EF61000-memory.dmp

      Filesize

      4KB

    • memory/992-912-0x000000007EF40000-0x000000007EF41000-memory.dmp

      Filesize

      4KB

    • memory/2540-1-0x0000000002230000-0x0000000002270000-memory.dmp

      Filesize

      256KB

    • memory/2540-0-0x0000000002230000-0x0000000002270000-memory.dmp

      Filesize

      256KB