Analysis

  • max time kernel
    183s
  • max time network
    186s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/10/2022, 23:36

General

  • Target
    03cbf99ae34bd4e53613ec36805e5f9ea7c2ce84011d99fc0dd37a5dcc3e8170.exe
  • Size 239KB
  • Sample221001-3ltghsddcn
  • SHA256 03cbf99ae34bd4e53613ec36805e5f9ea7c2ce84011d99fc0dd37a5dcc3e8170
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Signatures

  • Detects PlugX payload 8 IoCs
  • PlugX

    PlugX is a RAT (Remote Access Trojan) that has been around since 2008.

  • Executes dropped EXE 3 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 3 IoCs
  • Drops file in Program Files directory 7 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies data under HKEY_USERS 17 IoCs
  • Modifies registry class 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\03cbf99ae34bd4e53613ec36805e5f9ea7c2ce84011d99fc0dd37a5dcc3e8170.exe
    "C:\Users\Admin\AppData\Local\Temp\03cbf99ae34bd4e53613ec36805e5f9ea7c2ce84011d99fc0dd37a5dcc3e8170.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1124
    • C:\Users\Admin\AppData\Local\Temp\RarSFX0\NvSmart.exe
      "C:\Users\Admin\AppData\Local\Temp\RarSFX0\NvSmart.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4452
  • C:\Program Files (x86)\Common Files\NvSmart.exe
    "C:\Program Files (x86)\Common Files\NvSmart.exe" 100 4452
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of AdjustPrivilegeToken
    PID:4220
  • C:\Program Files (x86)\Common Files\NvSmart.exe
    "C:\Program Files (x86)\Common Files\NvSmart.exe" 200 0
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1968
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\system32\svchost.exe 201 0
      2⤵
      • Modifies data under HKEY_USERS
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4368
      • C:\Windows\SysWOW64\msiexec.exe
        C:\Windows\system32\msiexec.exe 209 4368
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        PID:4328

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        NvSmart.dat

        • Path C:\Program Files (x86)\Common Files\NvSmart.dat
        • Size 120KB
        • SHA256 0ebcbb904423910f81d8813852a0b4d73edbcc4d4216d58b723bc130eccbc2d0
        • MD5 SHA1 SHA512 SSDEEP

        NvSmart.exe

        • Path C:\Program Files (x86)\Common Files\NvSmart.exe
        • Size 43KB
        • SHA256 35ca38b9b7292b8c9da598ce5f2baafb76b90b66ddac366a43c77cbdf984801d
        • MD5 SHA1 SHA512 SSDEEP

        NvSmart.exe

        • Path C:\Program Files (x86)\Common Files\NvSmart.exe
        • Size 43KB
        • SHA256 35ca38b9b7292b8c9da598ce5f2baafb76b90b66ddac366a43c77cbdf984801d
        • MD5 SHA1 SHA512 SSDEEP

        NvSmart.exe

        • Path C:\Program Files (x86)\Common Files\NvSmart.exe
        • Size 43KB
        • SHA256 35ca38b9b7292b8c9da598ce5f2baafb76b90b66ddac366a43c77cbdf984801d
        • MD5 SHA1 SHA512 SSDEEP

        NvSmartMax.dll

        • Path C:\Program Files (x86)\Common Files\NvSmartMax.dll
        • Size 11KB
        • SHA256 c164b75b738f3d85c27016b4cc9515d8dd5d12f16175e31fac2b13c5c2737fef
        • MD5 SHA1 SHA512 SSDEEP

        NvSmartMax.dll

        • Path C:\Program Files (x86)\Common Files\NvSmartMax.dll
        • Size 11KB
        • SHA256 c164b75b738f3d85c27016b4cc9515d8dd5d12f16175e31fac2b13c5c2737fef
        • MD5 SHA1 SHA512 SSDEEP

        NvSmartMax.dll

        • Path C:\Program Files (x86)\Common Files\NvSmartMax.dll
        • Size 11KB
        • SHA256 c164b75b738f3d85c27016b4cc9515d8dd5d12f16175e31fac2b13c5c2737fef
        • MD5 SHA1 SHA512 SSDEEP

        bug.log

        • Path C:\ProgramData\SxS\bug.log
        • Size 622B
        • SHA256 f68ca5f7eb5815eb731290d1d8baf8f33c3bd83c812649e43b1c6347b58a7f2b
        • MD5 SHA1 SHA512

        NvSmart.dat

        • Path C:\Users\Admin\AppData\Local\Temp\RarSFX0\NvSmart.dat
        • Size 120KB
        • SHA256 0ebcbb904423910f81d8813852a0b4d73edbcc4d4216d58b723bc130eccbc2d0
        • MD5 SHA1 SHA512 SSDEEP

        NvSmart.exe

        • Path C:\Users\Admin\AppData\Local\Temp\RarSFX0\NvSmart.exe
        • Size 43KB
        • SHA256 35ca38b9b7292b8c9da598ce5f2baafb76b90b66ddac366a43c77cbdf984801d
        • MD5 SHA1 SHA512 SSDEEP

        NvSmart.exe

        • Path C:\Users\Admin\AppData\Local\Temp\RarSFX0\NvSmart.exe
        • Size 43KB
        • SHA256 35ca38b9b7292b8c9da598ce5f2baafb76b90b66ddac366a43c77cbdf984801d
        • MD5 SHA1 SHA512 SSDEEP

        NvSmartMax.dll

        • Path C:\Users\Admin\AppData\Local\Temp\RarSFX0\NvSmartMax.dll
        • Size 11KB
        • SHA256 c164b75b738f3d85c27016b4cc9515d8dd5d12f16175e31fac2b13c5c2737fef
        • MD5 SHA1 SHA512 SSDEEP

        NvSmartMax.dll

        • Path C:\Users\Admin\AppData\Local\Temp\RarSFX0\NvSmartMax.dll
        • Size 11KB
        • SHA256 c164b75b738f3d85c27016b4cc9515d8dd5d12f16175e31fac2b13c5c2737fef
        • MD5 SHA1 SHA512 SSDEEP

        memory/1968-150-0x0000000000E30000-0x0000000000E60000-memory.dmp

        memory/4220-149-0x00000000005C0000-0x00000000005F0000-memory.dmp

        memory/4220-154-0x00000000005C0000-0x00000000005F0000-memory.dmp

        memory/4328-156-0x0000000001610000-0x0000000001640000-memory.dmp

        memory/4328-158-0x0000000001610000-0x0000000001640000-memory.dmp

        memory/4368-153-0x0000000000DC0000-0x0000000000DF0000-memory.dmp

        memory/4368-157-0x0000000000DC0000-0x0000000000DF0000-memory.dmp

        memory/4452-138-0x00000000020B0000-0x00000000021B0000-memory.dmp

        memory/4452-139-0x00000000006C0000-0x00000000006F0000-memory.dmp