Analysis

  • max time kernel
    148s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-09-2024 17:22

General

  • Target

    2024-09-17_13d1cd6bc101aaeabbb33fe9af40be3f_darkside.exe

  • Size

    146KB

  • MD5

    13d1cd6bc101aaeabbb33fe9af40be3f

  • SHA1

    fdf8e840d9b5241bcf3b458cac72c2fb4d4cec00

  • SHA256

    a8bd5d36c5653a89f5643dd7d7ff27146dcc95f0ef7c3a507f8c42af1ee6b367

  • SHA512

    80c10fc4b173ff9ba30d0a3944645402995c66b356e079e52e343f7fa8c493ccc2ce4f864f0ab26ebd2eda59108167fc710d7fcab95038bdb3e6c187074d7f89

  • SSDEEP

    3072:76glyuxE4GsUPnliByocWepRs7lD9DVGUI:76gDBGpvEByocWeHkg

Malware Config

Signatures

  • Renames multiple (615) files with added filename extension

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

  • 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
  • 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.

  • Drops file in System32 directory 4 IoCs
  • 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.

  • 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
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 13 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-17_13d1cd6bc101aaeabbb33fe9af40be3f_darkside.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-17_13d1cd6bc101aaeabbb33fe9af40be3f_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:3776
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:5012
    • C:\ProgramData\D032.tmp
      "C:\ProgramData\D032.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:396
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\D032.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4620
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
    1⤵
      PID:3032
    • C:\Windows\system32\printfilterpipelinesvc.exe
      C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
      1⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:4676
      • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
        /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{C1161192-C2BA-4693-970D-51D878A9F0B4}.xps" 133710673698620000
        2⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of SetWindowsHookEx
        PID:1696

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\$Recycle.Bin\S-1-5-21-523280732-2327480845-3730041215-1000\JJJJJJJJJJJ

      Filesize

      129B

      MD5

      8fa76d8454a29ef2a0120a01343a1c5e

      SHA1

      1334034dc88d6679303dd490032fc703b3fdb26f

      SHA256

      922d653d7b9ea7cd1dc9d12ad5c5012faa8333d3be2a7a550f349abe164f1f0d

      SHA512

      69279725e68dc97612f2e3a31aa43c7296d0e8e28769e5d190e64b6930bd20a0118bdccede08179ffdcfc029b35cfb059c663afb8a67fb666ba6c2db05da9dc0

    • C:\8mxowyHQo.README.txt

      Filesize

      343B

      MD5

      72b1ffaeb7de456483f491ecceadb088

      SHA1

      ee1953abc295245ab01f35a4a823883826bf2b41

      SHA256

      eb892eac9899b995047733bb17acd4945eb42b7b49f2ee8ad52b8026bc0297a7

      SHA512

      c0e7cad617cf1490bb25fc47936edc3ae164b190ed34f2d2a50e7e84ce6e0d6712a6ba9ab351cca1589266078326a00317516c53fecf96f20eaefe15e92ce445

    • C:\ProgramData\D032.tmp

      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

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

      Filesize

      146KB

      MD5

      c1e01eb459af9480c3992e29678dd878

      SHA1

      e9cf419b9c9c7bca9d35471a9f6d62c4b86b12c7

      SHA256

      d3e0dd32f809e047f62fd6ae57fc1b133ceb26bcce728694c0abfc7275458060

      SHA512

      c1ba78bebb8d4ce1565598f93553da08400db57858b7bcdffff1303f9cb415454d6123cfe00c09468743b6447f3724d74855f142ed0487c32d87930f6436df14

    • C:\Users\Admin\AppData\Local\Temp\{51144613-2233-4DA3-851F-D921AB414535}

      Filesize

      4KB

      MD5

      d3a196fc483fde4ac7640a9a003140a8

      SHA1

      a29da5b5def2d3ae776ec0b2f7d7274bead5a391

      SHA256

      5de064e6a68bd65594e775e9064a4c38ddad8fd7b5ee1bc73ed40e677d8744a4

      SHA512

      f20593d6ce89c98898410bc9480e84409a2643028edabcf13f609ed0d5155f0969cf3fd3494a8931839129299dccf18218060815b63cc63cc2faebb01a52698c

    • C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2

      Filesize

      4KB

      MD5

      a9560057fb9c690d8bc95980ad661bba

      SHA1

      b73644c22a9585d4155b03ae4559bd617c5d814a

      SHA256

      54b4e49af5567d7d8d82acea49f2031f621aae8b6ffe50b51c37a0faaf8e18d3

      SHA512

      24ac6e2352fa83b730d97fd27b8f9823948635beb1ae8b25c3f5b4f0b733f3772de340b51c6e5358ad38c2af42b06a7230d472e587d746be89f3ccc7a27d426c

    • F:\$RECYCLE.BIN\S-1-5-21-523280732-2327480845-3730041215-1000\DDDDDDDDDDD

      Filesize

      129B

      MD5

      a7c8eeabc16cd324580b9216152ae2ba

      SHA1

      280f78ed102a8cc3d41bd26e71dcd27d757d79be

      SHA256

      53b73589df220c53b22ee956ad96306916234864d809bafedc302b3beed0c36c

      SHA512

      5d6b87b19a3a63d33d4e469c98b8f59065783eff17d372dc4b3bd08282205c0e5c647a2f657f758787b39a56dcad323ef53c18fb75e2b2382bb64ed1f99819bd

    • memory/1696-2968-0x00007FF8E32F0000-0x00007FF8E3300000-memory.dmp

      Filesize

      64KB

    • memory/1696-2970-0x00007FF8E32F0000-0x00007FF8E3300000-memory.dmp

      Filesize

      64KB

    • memory/1696-2972-0x00007FF8E32F0000-0x00007FF8E3300000-memory.dmp

      Filesize

      64KB

    • memory/1696-2971-0x00007FF8E32F0000-0x00007FF8E3300000-memory.dmp

      Filesize

      64KB

    • memory/1696-3001-0x00007FF8E1100000-0x00007FF8E1110000-memory.dmp

      Filesize

      64KB

    • memory/1696-3002-0x00007FF8E1100000-0x00007FF8E1110000-memory.dmp

      Filesize

      64KB

    • memory/1696-2969-0x00007FF8E32F0000-0x00007FF8E3300000-memory.dmp

      Filesize

      64KB

    • memory/3776-2952-0x0000000002C80000-0x0000000002C90000-memory.dmp

      Filesize

      64KB

    • memory/3776-2950-0x0000000002C80000-0x0000000002C90000-memory.dmp

      Filesize

      64KB

    • memory/3776-2951-0x0000000002C80000-0x0000000002C90000-memory.dmp

      Filesize

      64KB

    • memory/3776-1-0x0000000002C80000-0x0000000002C90000-memory.dmp

      Filesize

      64KB

    • memory/3776-2-0x0000000002C80000-0x0000000002C90000-memory.dmp

      Filesize

      64KB

    • memory/3776-0-0x0000000002C80000-0x0000000002C90000-memory.dmp

      Filesize

      64KB