Analysis

  • max time kernel
    142s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-05-2024 03:14

General

  • Target

    c70e06ce834e6a054e9323daae5eb797da7173696f1bb589430aa392651ecd32.exe

  • Size

    240KB

  • MD5

    d75e3236e471d4aa6a815411ffa047bf

  • SHA1

    79da92d124702d91ba2258bfdbdadd25f7855d96

  • SHA256

    c70e06ce834e6a054e9323daae5eb797da7173696f1bb589430aa392651ecd32

  • SHA512

    95e02604d0f1451fef19c5edb7d388e2eb7f08666087a524ca1ae610611ecca922880dbb5a88baf30283eeeed0d37f328e4bdf1a577011d09335c0b4f7833fee

  • SSDEEP

    6144:VBoXYv1rTTdFB4Tbk2V27e+fbhJAPNADR:XD1rT5vV2W

Malware Config

Signatures

  • Detects executables containing base64 encoded User Agent 2 IoCs
  • Blocklisted process makes network request 8 IoCs
  • ASPack v2.12-2.42 1 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • 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 2 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.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c70e06ce834e6a054e9323daae5eb797da7173696f1bb589430aa392651ecd32.exe
    "C:\Users\Admin\AppData\Local\Temp\c70e06ce834e6a054e9323daae5eb797da7173696f1bb589430aa392651ecd32.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3956
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&c:\estjf.exe "C:\Users\Admin\AppData\Local\Temp\c70e06ce834e6a054e9323daae5eb797da7173696f1bb589430aa392651ecd32.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4380
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • Runs ping.exe
        PID:2360
      • \??\c:\estjf.exe
        c:\estjf.exe "C:\Users\Admin\AppData\Local\Temp\c70e06ce834e6a054e9323daae5eb797da7173696f1bb589430aa392651ecd32.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:5240
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\ppkcgvd\qotcl.dll",GetWindowClass c:\estjf.exe
          4⤵
          • Blocklisted process makes network request
          • Checks computer location settings
          • Loads dropped DLL
          • Adds Run key to start application
          • Enumerates connected drives
          • Writes to the Master Boot Record (MBR)
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2332
          • C:\wiseman.exe
            "C:\wiseman.exe"
            5⤵
            • Executes dropped EXE
            • Adds Run key to start application
            • Suspicious use of SetWindowsHookEx
            PID:2592

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\wiseman.exe

    Filesize

    378KB

    MD5

    8f242369cf14f2b26ced131d7dd67144

    SHA1

    d4f2f0f3047300ff5f36af6119ad5e109258fcd0

    SHA256

    03505198d487e04a8ec82c627d34e4d9145f211140c4c8793b4461621e6bf6ce

    SHA512

    4516b3fa2f68e64baf166bc7731ba3bb0ca53d36d71ff8fa78b1f211d7c14fc4442af50bd637d0c3f11913583c9c66996101d6e8738592a053e82a78bbd771f5

  • \??\c:\estjf.exe

    Filesize

    240KB

    MD5

    a253d66f041b8d6190ab19db63bfe0ff

    SHA1

    52b2ff8645aeaa5575db00354240280b8207f3e6

    SHA256

    75d4e5ac31d2c89843231efd744196666a431f3bb139f1db8da25f0662333059

    SHA512

    7378367c1884b7392ef405164212858026c21040f4b978fc15112143ba20a10acebc74bd9e7ef1db888a43c415dd65d98f1473cabfa60b5e26bfca6ea58aef3a

  • \??\c:\ppkcgvd\qotcl.dll

    Filesize

    71KB

    MD5

    10eb9b069e53509dfe5652372437858d

    SHA1

    f5b7b4d4f4afe9439d78f43c1915cb3bd07fc620

    SHA256

    c8c3ce80cc170f0a7a3a1ca9120e8279a3f323604b50478ad81869c4131f6315

    SHA512

    6105b5547aa7754183471d395de4fabda8780b5000db2dc4d799bf3af27fca546a0548e6dcc4f435bee5f39e291cae400d7b8efd0d1d7034d31c4e92891b4051

  • memory/2332-14-0x0000000010001000-0x0000000010034000-memory.dmp

    Filesize

    204KB

  • memory/2332-13-0x0000000010000000-0x000000001004A000-memory.dmp

    Filesize

    296KB

  • memory/2332-19-0x0000000010000000-0x000000001004A000-memory.dmp

    Filesize

    296KB

  • memory/2332-20-0x0000000010001000-0x0000000010034000-memory.dmp

    Filesize

    204KB

  • memory/3956-3-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3956-0-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/3956-1-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/5240-7-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/5240-9-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB

  • memory/5240-17-0x0000000000400000-0x000000000047F000-memory.dmp

    Filesize

    508KB