Analysis

  • max time kernel
    119s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    20-09-2024 00:24

General

  • Target

    2024-09-20_01917d8ef944c6fda4666f67b4927d46_darkside.exe

  • Size

    146KB

  • MD5

    01917d8ef944c6fda4666f67b4927d46

  • SHA1

    4b811bfc90504e935774457b002d785143804f24

  • SHA256

    9c09ece9784fad75103d9ecc51a7036dd1b9d6b9ddf945c580abc9e626e39d1a

  • SHA512

    395dd71cfc7be177f84e4be772f3ca869e7915c951cc183cb708deb0a464215b447901f1744f8c71d141481c4ca02f3ba53e69e1f43f73ff59307744ce05fa53

  • SSDEEP

    3072:p6glyuxE4GsUPnliByocWepjQ2d2jAhBHIWh1o:p6gDBGpvEByocWe3dFhBoWh1o

Malware Config

Signatures

  • Renames multiple (336) 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\2024-09-20_01917d8ef944c6fda4666f67b4927d46_darkside.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-20_01917d8ef944c6fda4666f67b4927d46_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:2696
    • C:\ProgramData\9CDB.tmp
      "C:\ProgramData\9CDB.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:2376
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\9CDB.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:608
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x14c
    1⤵
      PID:2888

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\$Recycle.Bin\S-1-5-21-3551809350-4263495960-1443967649-1000\DDDDDDDDDDD

      Filesize

      129B

      MD5

      2b6c8fbc09b3d9cfe5f7f3b14b8a7259

      SHA1

      df5bd91da31adf852227adf19663a1172745751b

      SHA256

      72f39309a9c5d5cf13ca29ead2fabbcefd45921f83c7ccc80607d4766a72b477

      SHA512

      d36349542d2a98da8af47bbc86ba7d9592389f628cae59cec53446c200faf4b7b66571284d60140f15460afc18061d7487b2b4892c5f9cffd91b2d0e64d57d69

    • C:\DKZkRSDld.README.txt

      Filesize

      343B

      MD5

      72b1ffaeb7de456483f491ecceadb088

      SHA1

      ee1953abc295245ab01f35a4a823883826bf2b41

      SHA256

      eb892eac9899b995047733bb17acd4945eb42b7b49f2ee8ad52b8026bc0297a7

      SHA512

      c0e7cad617cf1490bb25fc47936edc3ae164b190ed34f2d2a50e7e84ce6e0d6712a6ba9ab351cca1589266078326a00317516c53fecf96f20eaefe15e92ce445

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

      Filesize

      146KB

      MD5

      0e654b4bf66a6784ee6615fb9051c669

      SHA1

      2be79a8b4c590e751d534fee89dd2c1a0abfe04e

      SHA256

      ba39be1f4001992001310913398d897f32263d2a395c75f4f74ec60bfc07ea1e

      SHA512

      ac59e4b02c3a93b737361f8e2c7a4631c5719c7786cc3b45dfe12d5ddd1a277dc40a8a1eaf517bb0ad6f0e5f191e2347ed4c3e26d443ec470d376d0c67f4d04d

    • F:\$RECYCLE.BIN\S-1-5-21-3551809350-4263495960-1443967649-1000\DDDDDDDDDDD

      Filesize

      129B

      MD5

      97f9c80994a43938adbcad02b0707fb8

      SHA1

      0544844ea96bfa40bf9435769af39dbd7db4c3a5

      SHA256

      2e778d6b61ff1273b845853cb35e4d3689e1fbc6ee109ec6d39f1a343f572ed3

      SHA512

      b0caa5e3075e5b0b8e1d82e442cabb8ffaac53451fb43945bf1936a474c2703ff5fdee47e0324f939cb16e21378bbf5071d335d2783eb848b30d5acf917b0490

    • \ProgramData\9CDB.tmp

      Filesize

      14KB

      MD5

      294e9f64cb1642dd89229fff0592856b

      SHA1

      97b148c27f3da29ba7b18d6aee8a0db9102f47c9

      SHA256

      917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2

      SHA512

      b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf

    • memory/2376-869-0x0000000000401000-0x0000000000404000-memory.dmp

      Filesize

      12KB

    • memory/2376-871-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

    • memory/2376-873-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

    • memory/2376-872-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

    • memory/2696-0-0x0000000000B70000-0x0000000000BB0000-memory.dmp

      Filesize

      256KB