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Analysis

  • max time kernel
    131s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/10/2022, 15:15

General

  • Target

    4d4bbcfc2687bab3270b8d5bcb52708ac64952e73c5890fc58cf244194f93010.exe

  • Size

    375KB

  • MD5

    915ad9039e7c2d790357ff8eb186c6d7

  • SHA1

    b1eb5730bc31bda44f07b5539dadb7ed0c417c85

  • SHA256

    4d4bbcfc2687bab3270b8d5bcb52708ac64952e73c5890fc58cf244194f93010

  • SHA512

    35498d28c90596a4f546027216d9745753df1aa3852e49cdddc795247959df23c04792da782cbeb7748ad1d446dcfdfa9acfe6f93a4ba7c3b08b726ae085dec8

  • SSDEEP

    6144:Cv5zQJVb5p72cHF1ybDFwekh212KhvwIb759QOaBjpaVRPu23E2rJmWjFc94:C4VOiF1WD7kE1dTYOi8V5u23zmWFy4

Score
10/10

Malware Config

Signatures

  • Gh0st RAT payload 10 IoCs
  • Gh0strat

    Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.

  • Executes dropped EXE 4 IoCs
  • UPX packed file 10 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops file in System32 directory 4 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 5 IoCs

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

  • Modifies data under HKEY_USERS 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4d4bbcfc2687bab3270b8d5bcb52708ac64952e73c5890fc58cf244194f93010.exe
    "C:\Users\Admin\AppData\Local\Temp\4d4bbcfc2687bab3270b8d5bcb52708ac64952e73c5890fc58cf244194f93010.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Program Files directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3208
    • C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe
      "C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1196
  • C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe
    "C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2716
    • C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe
      "C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:5044
    • C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe
      "C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Checks processor information in registry
      • Modifies data under HKEY_USERS
      • Suspicious use of AdjustPrivilegeToken
      PID:3560
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2716 -s 576
      2⤵
      • Program crash
      PID:228
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2716 -ip 2716
    1⤵
      PID:208

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe

      Filesize

      39.4MB

      MD5

      2a08f9f06fb677f707b3fa974ef37dc2

      SHA1

      5de47e3cf6ad2bcd3c2a0bad4816f8d8a512c24c

      SHA256

      88b22d705e49ecde84c95adc156851480816d52df5eb9fbc944eb1be519edbdf

      SHA512

      de6832e0248e69e2b20b2fb096734ebbd47b36f955a3125215d0de378b98d3f77220d22cc3622169aa57d1f0528cd1906d20bde59ab03e690b621cd05e76b15e

    • C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe

      Filesize

      39.4MB

      MD5

      2a08f9f06fb677f707b3fa974ef37dc2

      SHA1

      5de47e3cf6ad2bcd3c2a0bad4816f8d8a512c24c

      SHA256

      88b22d705e49ecde84c95adc156851480816d52df5eb9fbc944eb1be519edbdf

      SHA512

      de6832e0248e69e2b20b2fb096734ebbd47b36f955a3125215d0de378b98d3f77220d22cc3622169aa57d1f0528cd1906d20bde59ab03e690b621cd05e76b15e

    • C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe

      Filesize

      39.4MB

      MD5

      2a08f9f06fb677f707b3fa974ef37dc2

      SHA1

      5de47e3cf6ad2bcd3c2a0bad4816f8d8a512c24c

      SHA256

      88b22d705e49ecde84c95adc156851480816d52df5eb9fbc944eb1be519edbdf

      SHA512

      de6832e0248e69e2b20b2fb096734ebbd47b36f955a3125215d0de378b98d3f77220d22cc3622169aa57d1f0528cd1906d20bde59ab03e690b621cd05e76b15e

    • C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe

      Filesize

      39.4MB

      MD5

      2a08f9f06fb677f707b3fa974ef37dc2

      SHA1

      5de47e3cf6ad2bcd3c2a0bad4816f8d8a512c24c

      SHA256

      88b22d705e49ecde84c95adc156851480816d52df5eb9fbc944eb1be519edbdf

      SHA512

      de6832e0248e69e2b20b2fb096734ebbd47b36f955a3125215d0de378b98d3f77220d22cc3622169aa57d1f0528cd1906d20bde59ab03e690b621cd05e76b15e

    • C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe

      Filesize

      39.4MB

      MD5

      2a08f9f06fb677f707b3fa974ef37dc2

      SHA1

      5de47e3cf6ad2bcd3c2a0bad4816f8d8a512c24c

      SHA256

      88b22d705e49ecde84c95adc156851480816d52df5eb9fbc944eb1be519edbdf

      SHA512

      de6832e0248e69e2b20b2fb096734ebbd47b36f955a3125215d0de378b98d3f77220d22cc3622169aa57d1f0528cd1906d20bde59ab03e690b621cd05e76b15e

    • memory/1196-155-0x0000000010000000-0x0000000010362000-memory.dmp

      Filesize

      3.4MB

    • memory/1196-179-0x0000000010000000-0x0000000010362000-memory.dmp

      Filesize

      3.4MB

    • memory/1196-156-0x0000000000400000-0x0000000000469000-memory.dmp

      Filesize

      420KB

    • memory/1196-146-0x0000000000400000-0x0000000000469000-memory.dmp

      Filesize

      420KB

    • memory/1196-157-0x0000000010000000-0x0000000010362000-memory.dmp

      Filesize

      3.4MB

    • memory/2716-158-0x0000000000400000-0x0000000000469000-memory.dmp

      Filesize

      420KB

    • memory/2716-150-0x0000000010000000-0x0000000010362000-memory.dmp

      Filesize

      3.4MB

    • memory/2716-153-0x0000000010000000-0x0000000010362000-memory.dmp

      Filesize

      3.4MB

    • memory/2716-154-0x0000000010000000-0x0000000010362000-memory.dmp

      Filesize

      3.4MB

    • memory/2716-160-0x0000000010000000-0x0000000010362000-memory.dmp

      Filesize

      3.4MB

    • memory/3208-136-0x0000000010000000-0x0000000010362000-memory.dmp

      Filesize

      3.4MB

    • memory/3208-137-0x0000000010000000-0x0000000010362000-memory.dmp

      Filesize

      3.4MB

    • memory/3208-133-0x0000000010000000-0x0000000010362000-memory.dmp

      Filesize

      3.4MB

    • memory/3208-132-0x0000000000400000-0x0000000000469000-memory.dmp

      Filesize

      420KB

    • memory/3208-144-0x0000000000400000-0x0000000000469000-memory.dmp

      Filesize

      420KB

    • memory/3208-138-0x0000000010000000-0x0000000010362000-memory.dmp

      Filesize

      3.4MB

    • memory/3560-176-0x0000000010000000-0x0000000010362000-memory.dmp

      Filesize

      3.4MB

    • memory/3560-174-0x0000000000400000-0x0000000000469000-memory.dmp

      Filesize

      420KB

    • memory/5044-177-0x0000000000400000-0x0000000000469000-memory.dmp

      Filesize

      420KB

    • memory/5044-178-0x0000000010000000-0x0000000010362000-memory.dmp

      Filesize

      3.4MB

    • memory/5044-175-0x0000000000400000-0x0000000000469000-memory.dmp

      Filesize

      420KB

    • memory/5044-180-0x0000000010000000-0x0000000010362000-memory.dmp

      Filesize

      3.4MB