Overview

overview

8

Static

static

3

9aaa3808e7...6f.exe

windows7-x64

8

9aaa3808e7...6f.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-04-2024 03:21

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General

  • Target

    9aaa3808e714203de761fc2ba5cb7e69e0f14b96d2eb5d662597082b3db22c6f.exe

  • Size

    403KB

  • MD5

    261d4a7b37ef1259131dcdd74d40656c

  • SHA1

    28e6f79d0eb036f3cb775b793ef73a5651232281

  • SHA256

    9aaa3808e714203de761fc2ba5cb7e69e0f14b96d2eb5d662597082b3db22c6f

  • SHA512

    6345acc12284014dd9522cd8073767a16d1a9ae37c929fffd251226ad6ebae93776841c7279755de93d131ac48ca7774a2375b101bd5f90cf625560a83b75463

  • SSDEEP

    6144:3w9D91dOrcN3ZGXNYFNmIkYvUIelVjjVtGRyFH4:gtRfJcNYFNm8UhlZGse

Score
8/10
bootkitpersistencespywarestealer

Malware Config

Signatures

  • Blocklisted process makes network request 8 IoCs
  • 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.

    spywarestealer
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • 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.

    bootkitpersistence
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • 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 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9aaa3808e714203de761fc2ba5cb7e69e0f14b96d2eb5d662597082b3db22c6f.exe
    "C:\Users\Admin\AppData\Local\Temp\9aaa3808e714203de761fc2ba5cb7e69e0f14b96d2eb5d662597082b3db22c6f.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3800
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\spvtx.exe "C:\Users\Admin\AppData\Local\Temp\9aaa3808e714203de761fc2ba5cb7e69e0f14b96d2eb5d662597082b3db22c6f.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3588
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • Runs ping.exe
        PID:5080
      • C:\Users\Admin\AppData\Local\Temp\spvtx.exe
        C:\Users\Admin\AppData\Local\Temp\\spvtx.exe "C:\Users\Admin\AppData\Local\Temp\9aaa3808e714203de761fc2ba5cb7e69e0f14b96d2eb5d662597082b3db22c6f.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4176
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\Program Files\bmzgy\agzwj.dll",Verify C:\Users\Admin\AppData\Local\Temp\spvtx.exe
          4⤵
          • Blocklisted process makes network request
          • Loads dropped DLL
          • Adds Run key to start application
          • Enumerates connected drives
          • Writes to the Master Boot Record (MBR)
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1808

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\spvtx.exe
    Filesize

    404KB

    MD5

    649dea72cbd41512d297ea783b2b6730

    SHA1

    b335618c2902d8cb6321d8a75200a245ba9c06dc

    SHA256

    120956360a1f3c982d542669f3b77605306344fce2f8e843fb7c3fdcbe9aaa71

    SHA512

    9fccd86ae463e427ab5da09a5225768e3cc79dd1214101660bb9eb199a19f7fad4e5461640568f05043e9ff093a6ca7e9daa98fc5336d7ef473662b866cf5e34

    Download Submit

  • \??\c:\Program Files\bmzgy\agzwj.dll
    Filesize

    228KB

    MD5

    a0be02162f39cf8122f82dcb4ea69584

    SHA1

    30387ddd4c2dcc264f11f2d75b32324d73580743

    SHA256

    5ccfee82c7a0144e1322dc33b0abac2698f3823e72826c219719918741ce8197

    SHA512

    b97a886c433fa1509acd129a0ff410aaa42f0a0b401b1b2cbe5cff27aa75e730aba8f4323f33de65e1144a4380f3cbf22d51ff00aa9e37e0e60e89cc5fa2cd21

    Download Submit

  • memory/1808-11-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

    Download

  • memory/1808-12-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

    Download

  • memory/1808-14-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

    Download

  • memory/3800-0-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

    Download

  • memory/3800-2-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

    Download

  • memory/4176-6-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

    Download

  • memory/4176-8-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

    Download