Resubmissions

02/09/2024, 06:45

240902-hh76aavbjj10

02/09/2024, 06:24

240902-g6hpvsvfla10

Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    02/09/2024, 06:24

General

  • Target
    2024-09-02_20b0043ff680ffd554923069b7150b6a_darkside.exe
  • Size 147KB
  • Sample240902-g6hpvsvfla
  • SHA256 879e3a5051e3d56eaac8056e91dd8dcd11433198c0fc40866bf074c16f333ded
  • MD5 SHA1 SHA512 SSDEEP

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
  • 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\2024-09-02_20b0043ff680ffd554923069b7150b6a_darkside.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-02_20b0043ff680ffd554923069b7150b6a_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:2960
    • C:\ProgramData\E2F0.tmp
      "C:\ProgramData\E2F0.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:2784
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\E2F0.tmp >> NUL
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1952
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x14c
    1⤵
      PID:2740

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          desktop.ini

          • Path C:\$Recycle.Bin\S-1-5-21-3434294380-2554721341-1919518612-1000\desktop.ini
          • Size 129B
          • SHA256 d4ec45cd6da7563d0b7dfd07d728542fc71e24febcf396c860009f475794a687
          • MD5 SHA1 SHA512

          N7prImOYL.README.txt

          • Path C:\N7prImOYL.README.txt
          • Size 1KB
          • SHA256 45dbe45beb75f80f6e34bd00a7bd35970ded5acbbe2b4465884c9853e2b87e5b
          • MD5 SHA1 SHA512

          DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD

          • Path C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
          • Size 147KB
          • SHA256 8e267baa55ec48c6a91f664f0468b3d002dc35e67c164d67e34df53cfd6cda72
          • MD5 SHA1 SHA512 SSDEEP

          DDDDDDDDDDD

          • Path F:\$RECYCLE.BIN\S-1-5-21-3434294380-2554721341-1919518612-1000\DDDDDDDDDDD
          • Size 129B
          • SHA256 4703da77e7e1d3b29d04724f41a52614234363bada4b1ee12289eb0556acd91b
          • MD5 SHA1 SHA512

          E2F0.tmp

          • Path \ProgramData\E2F0.tmp
          • Size 14KB
          • SHA256 917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
          • MD5 SHA1 SHA512 SSDEEP

          memory/2784-898-0x000000007EF80000-0x000000007EF81000-memory.dmp

          memory/2784-897-0x00000000021F0000-0x0000000002230000-memory.dmp

          memory/2784-896-0x00000000021F0000-0x0000000002230000-memory.dmp

          memory/2784-895-0x000000007EFA0000-0x000000007EFA1000-memory.dmp

          memory/2784-899-0x000000007EF20000-0x000000007EF21000-memory.dmp

          memory/2784-929-0x000000007EF60000-0x000000007EF61000-memory.dmp

          memory/2784-928-0x000000007EF40000-0x000000007EF41000-memory.dmp

          memory/2960-0-0x0000000000C60000-0x0000000000CA0000-memory.dmp