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
    18-09-2024 23:17

General

  • Target

    2024-09-18_b49f2ded048a1c07e09e731d84c7bbb8_darkside.exe

  • Size

    146KB

  • MD5

    b49f2ded048a1c07e09e731d84c7bbb8

  • SHA1

    826176b2a3f8258b944dacf1f17a4495b73d104a

  • SHA256

    4178821f84d63a57ba7858c0b1e6adfa9d206943c06ac70b1a497d9269388db3

  • SHA512

    fbcde9c4334756d305715e1ec5f6216515ffd25ab0b861945807d0605b1d84339933ddd24ddb45f77f5390e9915e7b237cbcef45ad2f883a98b25747d0cca774

  • SSDEEP

    3072:n6glyuxE4GsUPnliByocWep2ntZdy0OS55Ei:n6gDBGpvEByocWeordyXS55Ei

Malware Config

Signatures

  • Renames multiple (328) 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\2024-09-18_b49f2ded048a1c07e09e731d84c7bbb8_darkside.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-18_b49f2ded048a1c07e09e731d84c7bbb8_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:1400
    • C:\ProgramData\261.tmp
      "C:\ProgramData\261.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:1388
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\261.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:824
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x14c
    1⤵
      PID:2556

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\$Recycle.Bin\S-1-5-21-1846800975-3917212583-2893086201-1000\BBBBBBBBBBB

      Filesize

      129B

      MD5

      653b0fa480691274875c3ba939f22a4d

      SHA1

      ddec9fd9cb618ca0eda54755720511e23012c577

      SHA256

      c7b754156e6a7b8460120dbad01dd22e1fe3d05e060244d2aa702b961c6de5b4

      SHA512

      55626924d80c2b8b883a3a4ac610160597c7b7a49b420e7b190bf0bd08f262fe933c2a0e6da38927a3d357dd71a64b0c0864d0fa348e23f2d137942662f0d46b

    • C:\5OaQNrui8.README.txt

      Filesize

      343B

      MD5

      72b1ffaeb7de456483f491ecceadb088

      SHA1

      ee1953abc295245ab01f35a4a823883826bf2b41

      SHA256

      eb892eac9899b995047733bb17acd4945eb42b7b49f2ee8ad52b8026bc0297a7

      SHA512

      c0e7cad617cf1490bb25fc47936edc3ae164b190ed34f2d2a50e7e84ce6e0d6712a6ba9ab351cca1589266078326a00317516c53fecf96f20eaefe15e92ce445

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

      Filesize

      146KB

      MD5

      fb6258dfbe647ad7cfbd894a5ec1eb03

      SHA1

      b0082ca6f2ff6aa4ed1ed19d4f21ca8dc316f2a9

      SHA256

      93c80295ed9eb7b95000289e70054f3925aef85a7259b3cf19cdc4daf936736e

      SHA512

      df166221066366adc607d45d5ba07961e72639d008ae8f18501357db7408eba35949e7938844e760be00a7252b3510ae58a5cf61cebcdb589049a792ae7aa6fa

    • F:\$RECYCLE.BIN\S-1-5-21-1846800975-3917212583-2893086201-1000\DDDDDDDDDDD

      Filesize

      129B

      MD5

      ac773e54be6f61c864b4b6dc50d7b1db

      SHA1

      c73bd4f7a7897dc60b8cd9c23b6e321346925739

      SHA256

      64ecfbfca9740caf5882ffa0d96b7e87efcb14175399c019e9f6b517b133537d

      SHA512

      5e4bda26be60de9e92a40de5c6ce8fb20c216bab9a7311bbd10112da594ea754a9384d8585ec0dcdac7eba8cb22c6f470f46331ff2af703545b7541bc7bade25

    • \ProgramData\261.tmp

      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

    • memory/1388-866-0x000000007EF20000-0x000000007EF21000-memory.dmp

      Filesize

      4KB

    • memory/1388-865-0x000000007EF80000-0x000000007EF81000-memory.dmp

      Filesize

      4KB

    • memory/1388-864-0x00000000022B0000-0x00000000022F0000-memory.dmp

      Filesize

      256KB

    • memory/1388-863-0x00000000022B0000-0x00000000022F0000-memory.dmp

      Filesize

      256KB

    • memory/1388-861-0x000000007EFA0000-0x000000007EFA1000-memory.dmp

      Filesize

      4KB

    • memory/1388-896-0x000000007EF60000-0x000000007EF61000-memory.dmp

      Filesize

      4KB

    • memory/1388-895-0x000000007EF40000-0x000000007EF41000-memory.dmp

      Filesize

      4KB

    • memory/1400-0-0x00000000021B0000-0x00000000021F0000-memory.dmp

      Filesize

      256KB