Analysis

  • max time kernel
    122s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    14/09/2024, 09:20 UTC

General

  • Target

    202409149cdb2bbdd9de55d1f79c4999dbe51655darkside.exe

  • Size

    146KB

  • MD5

    9cdb2bbdd9de55d1f79c4999dbe51655

  • SHA1

    f6112548b684898fa2b0bbe4e1cd172455600cb0

  • SHA256

    a9529a8df8a4e970e663bdd3e279303461d3bd4d952fa8a435b30bd70f130e91

  • SHA512

    2850a869b0119b4bcb8c921f0b7e685f4e35a76830f4c05995b8c5535d8b0c3cf3eca4e7b878640b951e7d73e32c09d942ce40e05478d6e24a2f5ea958d59f35

  • SSDEEP

    1536:VzICS4AwwRlcz5AxE4vGP1iU8KnliIs3iocZMgkGJp1Fhheye7Shd8l/Sx2G1oa:26glyuxE4GsUPnliByocWepnexSsl82

Malware Config

Signatures

  • Renames multiple (361) 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\202409149cdb2bbdd9de55d1f79c4999dbe51655darkside.exe
    "C:\Users\Admin\AppData\Local\Temp\202409149cdb2bbdd9de55d1f79c4999dbe51655darkside.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:2168
    • C:\ProgramData\D7E8.tmp
      "C:\ProgramData\D7E8.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:2180
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\D7E8.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1736
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x148
    1⤵
      PID:2800

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\$Recycle.Bin\S-1-5-21-2872745919-2748461613-2989606286-1000\desktop.ini

      Filesize

      129B

      MD5

      87d11d15c29dc3447839e507e23f2f09

      SHA1

      d1b42cb02ca6ace3f021f647afde8aedb4bc5720

      SHA256

      db9e44502c7f7dbf18ec1a69d36f6250a74689b7953200e402d0679bb0cc5c12

      SHA512

      1bb8e0c27f9445e3c25e544541e1fdaacf571c8e9182d682ab57a330c349c97e12206b4a74a2312fe97047f5dd8df9a9d28bfad57927cf36da536ad2054322c8

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

      Filesize

      146KB

      MD5

      2ce3a313084a2f3b1f372160d5df652c

      SHA1

      42319b4fad698272bf31d5b7aac9a00110c2b2aa

      SHA256

      1436f29962d774d589f2ac99c9607d5a35900851258d25c652bab7d18f06dd67

      SHA512

      87b9f1a7fe12196a72364431f35b051318cf8d19d2f81fbe18db46ea90c00018969ec961861ed7da5be898ef11a17a374036fe59ba1c5f1d094619915ba626c2

    • C:\VDDUnR1a6.README.txt

      Filesize

      343B

      MD5

      72b1ffaeb7de456483f491ecceadb088

      SHA1

      ee1953abc295245ab01f35a4a823883826bf2b41

      SHA256

      eb892eac9899b995047733bb17acd4945eb42b7b49f2ee8ad52b8026bc0297a7

      SHA512

      c0e7cad617cf1490bb25fc47936edc3ae164b190ed34f2d2a50e7e84ce6e0d6712a6ba9ab351cca1589266078326a00317516c53fecf96f20eaefe15e92ce445

    • F:\$RECYCLE.BIN\S-1-5-21-2872745919-2748461613-2989606286-1000\DDDDDDDDDDD

      Filesize

      129B

      MD5

      5a56bf97d8e7c4b94f56978b8ff61d6f

      SHA1

      3ad93d17b32464241fb9daeed065811b55331bca

      SHA256

      dea04b83aad1259a6e37121ff55c7d4af75cab915fd0c601f723b4aa8f28a8be

      SHA512

      1e78bb4a61133741357b534743ff21555c97a48235d06a7497d95a428108ab3eefc836d6ccd7ed38508f2ea710702addf4a8674218ded396d24edb19deee53f3

    • \ProgramData\D7E8.tmp

      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

    • memory/2168-0-0x0000000000D30000-0x0000000000D70000-memory.dmp

      Filesize

      256KB

    • memory/2168-1-0x0000000000D30000-0x0000000000D70000-memory.dmp

      Filesize

      256KB

    • memory/2180-897-0x00000000023A0000-0x00000000023E0000-memory.dmp

      Filesize

      256KB

    • memory/2180-899-0x000000007EF80000-0x000000007EF81000-memory.dmp

      Filesize

      4KB

    • memory/2180-898-0x00000000023A0000-0x00000000023E0000-memory.dmp

      Filesize

      256KB

    • memory/2180-896-0x000000007EFA0000-0x000000007EFA1000-memory.dmp

      Filesize

      4KB

    • memory/2180-900-0x000000007EF20000-0x000000007EF21000-memory.dmp

      Filesize

      4KB

    • memory/2180-930-0x000000007EF60000-0x000000007EF61000-memory.dmp

      Filesize

      4KB

    • memory/2180-929-0x000000007EF40000-0x000000007EF41000-memory.dmp

      Filesize

      4KB

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