Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-09-2024 00:48

General

  • Target

    2024-09-15_7001c7c8450ee471a5eda49e23b4e157_darkside.exe

  • Size

    146KB

  • MD5

    7001c7c8450ee471a5eda49e23b4e157

  • SHA1

    d7ef63743eb0d48cb5aee262933cac7422e1892d

  • SHA256

    892ada3594b550df18a7b88d4451a1f4be480c6a6cf9d5160e007bbf082b024d

  • SHA512

    4d19cb167f12a6e04ac55ca08c9c820eaa6eb72adea1ac22457dffec0b2cbc8a1890c87202bf50bfe5ce6de053bda7facc65fc800faf2103a035c141549d0f39

  • SSDEEP

    3072:B6glyuxE4GsUPnliByocWepyCq/HHBBwQOKT:B6gDBGpvEByocWesX/HwPq

Malware Config

Signatures

  • Renames multiple (637) 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\2024-09-15_7001c7c8450ee471a5eda49e23b4e157_darkside.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-15_7001c7c8450ee471a5eda49e23b4e157_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:2952
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
      • Drops file in System32 directory
      PID:1264
    • C:\ProgramData\CDF0.tmp
      "C:\ProgramData\CDF0.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:5464
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\CDF0.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:6088
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
    1⤵
      PID:5996
    • C:\Windows\system32\printfilterpipelinesvc.exe
      C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
      1⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:5624
      • C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
        /insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{4795CE00-5F32-4362-9CBD-5DC2EDFBC6BD}.xps" 133708349349170000
        2⤵
        • Checks processor information in registry
        • Enumerates system info in registry
        • Suspicious use of SetWindowsHookEx
        PID:5716

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\$Recycle.Bin\S-1-5-21-1194130065-3471212556-1656947724-1000\BBBBBBBBBBB

      Filesize

      129B

      MD5

      26b3b440491f146549e1e077998f4aa8

      SHA1

      b8dc5ce801a701e4c9d67b9b49fe544ddec009b5

      SHA256

      e634d2b34521fa8548216e457984089daf05a92752b11520a580a76dcee4cd06

      SHA512

      3d7ff14e16e64f2f84530d527f5df476b98828875a11f21a3cf7b0ab899cfcbe671b25be55382a682aaec62fe954dcac52f45577b3b62204548b7787bf35f7e3

    • C:\ProgramData\CDF0.tmp

      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

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

      Filesize

      146KB

      MD5

      630903a3b92a5899999ee851a5e4f71d

      SHA1

      7f1e5b221f69fe8548efd2b66784d336dcf01acc

      SHA256

      d1486598001a5887fbf2f0139aa6932b6c8c8a0644db5654b11ae975bd3691c3

      SHA512

      6061ba8a22c51fcbaffd9555fc1d7f94dee297ec5166510e9247e99f9f50ebec3d1d337f2ee70bb8bacd6f9850edaf588f5896e4e0e58db60d28a5cdf68bed5a

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

      Filesize

      4KB

      MD5

      4e696e61e6dd5f88405d45952a0ff63f

      SHA1

      c94f00da0146eb119f94fb832ccb72e5389dcc5c

      SHA256

      b05cf66f269334302f9b78835db13be98947a5d04d4404752002086aaa836690

      SHA512

      f40bd01a298e38276d8298fd25b34f24c18b3980380d43c12e222e8276ee2251e692d730ff1a960e4bad63ea1a53dd57f8fb7d38d7893c9fd88295a5729c0bb3

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

      Filesize

      4KB

      MD5

      4d2f88a95ca9df6380e9493ac047b9d2

      SHA1

      b80f933fb9730fbef36f7aa0f9291b7fec19b4e2

      SHA256

      7864385513000951e52030b1df430f3e84ad6a158b33b24e647d2a95b612276d

      SHA512

      908fe3f7749919882b63e151d0df093939f1bc2fcdc91ec42c4361938eae3c52d41b49bae88ad1a948d6a948b88572aa9d9f2654f9782808d6b028eb5294f51c

    • C:\Y3VMSl3zv.README.txt

      Filesize

      343B

      MD5

      72b1ffaeb7de456483f491ecceadb088

      SHA1

      ee1953abc295245ab01f35a4a823883826bf2b41

      SHA256

      eb892eac9899b995047733bb17acd4945eb42b7b49f2ee8ad52b8026bc0297a7

      SHA512

      c0e7cad617cf1490bb25fc47936edc3ae164b190ed34f2d2a50e7e84ce6e0d6712a6ba9ab351cca1589266078326a00317516c53fecf96f20eaefe15e92ce445

    • F:\$RECYCLE.BIN\S-1-5-21-1194130065-3471212556-1656947724-1000\DDDDDDDDDDD

      Filesize

      129B

      MD5

      b7159da24cc5adb3990d62c2114e2095

      SHA1

      3739b2c6291ed79a43ad563b174d0241b1352860

      SHA256

      fc6b0d954caff3de7d49b1c234bd39a4633760cc03c4a8685e11e507962c6f6e

      SHA512

      28346bd4718ee5354f35112a8fc0e1ece83e872514adf0d84de0b6b4c4efa3672e65457804ae01742a28eeaafdb33a3b967918c1ad2ee7a97de8cd202062d4dd

    • memory/2952-2-0x0000000002BC0000-0x0000000002BD0000-memory.dmp

      Filesize

      64KB

    • memory/2952-2823-0x0000000002BC0000-0x0000000002BD0000-memory.dmp

      Filesize

      64KB

    • memory/2952-2824-0x0000000002BC0000-0x0000000002BD0000-memory.dmp

      Filesize

      64KB

    • memory/2952-2822-0x0000000002BC0000-0x0000000002BD0000-memory.dmp

      Filesize

      64KB

    • memory/2952-1-0x0000000002BC0000-0x0000000002BD0000-memory.dmp

      Filesize

      64KB

    • memory/2952-0-0x0000000002BC0000-0x0000000002BD0000-memory.dmp

      Filesize

      64KB

    • memory/5716-2836-0x00007FFBF7310000-0x00007FFBF7320000-memory.dmp

      Filesize

      64KB

    • memory/5716-2840-0x00007FFBF7310000-0x00007FFBF7320000-memory.dmp

      Filesize

      64KB

    • memory/5716-2839-0x00007FFBF7310000-0x00007FFBF7320000-memory.dmp

      Filesize

      64KB

    • memory/5716-2860-0x00007FFBF4D30000-0x00007FFBF4D40000-memory.dmp

      Filesize

      64KB

    • memory/5716-2874-0x00007FFBF4D30000-0x00007FFBF4D40000-memory.dmp

      Filesize

      64KB

    • memory/5716-2837-0x00007FFBF7310000-0x00007FFBF7320000-memory.dmp

      Filesize

      64KB

    • memory/5716-2838-0x00007FFBF7310000-0x00007FFBF7320000-memory.dmp

      Filesize

      64KB