Analysis

  • max time kernel
    121s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    14-09-2024 00:11

General

  • Target

    2024-09-13_71bb9cab5f75648376363ebe65ed4586_darkside.exe

  • Size

    146KB

  • MD5

    71bb9cab5f75648376363ebe65ed4586

  • SHA1

    53ff430a8f7b5d1f15b0446ff684f5fd4c7f6579

  • SHA256

    ac9cabd530c5dafe0430db5b30e1d17d7d7b156a54f69e204a681be122581920

  • SHA512

    c5efea11dcae9e717a56922db603188f19163ef4c3c73dd2d272aa7a012534b29ffed46339c3005c024afb9de2b9c8a27e97e40a9f571416f2d4a1f6b8d8a313

  • SSDEEP

    3072:D6glyuxE4GsUPnliByocWephimYeS6SgK97wXFTBmOh:D6gDBGpvEByocWe4/RwXrh

Malware Config

Signatures

  • Renames multiple (327) 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
  • 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.

  • 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\2024-09-13_71bb9cab5f75648376363ebe65ed4586_darkside.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-13_71bb9cab5f75648376363ebe65ed4586_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:2112
    • C:\ProgramData\FF36.tmp
      "C:\ProgramData\FF36.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:1596
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\FF36.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1672
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x14c
    1⤵
      PID:2820

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\$Recycle.Bin\S-1-5-21-312935884-697965778-3955649944-1000\BBBBBBBBBBB

      Filesize

      129B

      MD5

      e2af406d73aa277eba7f3586ea4bde35

      SHA1

      36018b46cd5f220d0eefe1bf4f5ee412c84f1b08

      SHA256

      97aeb9ea948d5ede45415afbb9a687bbea77c77fdb04f603ce8abb6541fcbf68

      SHA512

      759b60e7a2297df15cf35ec50d40af3898b09af7046d688dffdfefb382b38612dbd0a828820c2e7285cc6032d4ffe475607cfcccd3a9159abe0516fbf09cef81

    • C:\F5iaU1zPW.README.txt

      Filesize

      343B

      MD5

      72b1ffaeb7de456483f491ecceadb088

      SHA1

      ee1953abc295245ab01f35a4a823883826bf2b41

      SHA256

      eb892eac9899b995047733bb17acd4945eb42b7b49f2ee8ad52b8026bc0297a7

      SHA512

      c0e7cad617cf1490bb25fc47936edc3ae164b190ed34f2d2a50e7e84ce6e0d6712a6ba9ab351cca1589266078326a00317516c53fecf96f20eaefe15e92ce445

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

      Filesize

      146KB

      MD5

      efeacbdc37e224e0222d0973e9c0fee2

      SHA1

      52bf3b59b8cafcbb06a5d295dfdd6dd797b72ff7

      SHA256

      b90aadced2d4d9103644fc56b50318cdcf3fd67dd7c8622a0a786a58d4994863

      SHA512

      cdfbd981135d6caf1f9a1320eab04d3d8360fb56cc28507b3ae473e7f9bc5ee6210d13c368fc6fc8f330c4d2897e5f7626651534162ef6a976e1e71e879af94e

    • F:\$RECYCLE.BIN\S-1-5-21-312935884-697965778-3955649944-1000\FFFFFFFFFFF

      Filesize

      129B

      MD5

      530880d761afcf44a416cc8ea0c43462

      SHA1

      df50e9ed16e5077b1da41ec1301ce56d8317765e

      SHA256

      f71319ff7d017f76caf25b1f725d7df259db42ef7dbc8393b2811aa49d93502b

      SHA512

      a7f1bd211972fec6c78e0c77079500770bdf06ced3e04c5c8c024746a40da126544f70b628293f307199a4456e3bf48c8836335cef9ed1d6ac2187cea9e65aea

    • \ProgramData\FF36.tmp

      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

    • memory/1596-862-0x0000000000490000-0x00000000004D0000-memory.dmp

      Filesize

      256KB

    • memory/1596-863-0x000000007EF80000-0x000000007EF81000-memory.dmp

      Filesize

      4KB

    • memory/1596-865-0x000000007EF20000-0x000000007EF21000-memory.dmp

      Filesize

      4KB

    • memory/1596-864-0x0000000000490000-0x00000000004D0000-memory.dmp

      Filesize

      256KB

    • memory/1596-860-0x000000007EFA0000-0x000000007EFA1000-memory.dmp

      Filesize

      4KB

    • memory/1596-895-0x000000007EF60000-0x000000007EF61000-memory.dmp

      Filesize

      4KB

    • memory/1596-894-0x000000007EF40000-0x000000007EF41000-memory.dmp

      Filesize

      4KB

    • memory/2112-0-0x0000000002330000-0x0000000002370000-memory.dmp

      Filesize

      256KB