Analysis

  • max time kernel
    150s
  • 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
    23-11-2022 13:31

General

  • Target

    9f51d6e43b7c3ce33ceb82caebcc5f7768afe7f987e78c4c3294612303fec83c.exe

  • Size

    399KB

  • MD5

    5c1914a1d3b7ccaebcfe1a6f8e05bfcf

  • SHA1

    21f033a91fc03a14b41490e2a17244f88bc336ba

  • SHA256

    9f51d6e43b7c3ce33ceb82caebcc5f7768afe7f987e78c4c3294612303fec83c

  • SHA512

    927c8bf70ae806b7876558f17e1118dbcb1d1f7aa28ea478e276b871f80ae71239db6bbcaf67f6cebb35b84965bf56af58c3335d2bf896065e95d419fd89b59b

  • SSDEEP

    6144:WAZRkz3xBb+XflYP4ZJhjaYYXDMBL3cN8a0SF1TCqzR7FL:H7g3zqlYPsJhjEMBLm8AdN5

Score
8/10

Malware Config

Signatures

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

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops desktop.ini file(s) 2 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 4 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9f51d6e43b7c3ce33ceb82caebcc5f7768afe7f987e78c4c3294612303fec83c.exe
    "C:\Users\Admin\AppData\Local\Temp\9f51d6e43b7c3ce33ceb82caebcc5f7768afe7f987e78c4c3294612303fec83c.exe"
    1⤵
    • Checks computer location settings
    • Drops desktop.ini file(s)
    • Drops file in Windows directory
    • Checks processor information in registry
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2424
    • C:\ProgramData\bqhffugz.exe
      "C:\ProgramData\bqhffugz.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks processor information in registry
      • Suspicious use of AdjustPrivilegeToken
      PID:4072

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\ProgramData\bqhffugz.exe

    Filesize

    399KB

    MD5

    5c1914a1d3b7ccaebcfe1a6f8e05bfcf

    SHA1

    21f033a91fc03a14b41490e2a17244f88bc336ba

    SHA256

    9f51d6e43b7c3ce33ceb82caebcc5f7768afe7f987e78c4c3294612303fec83c

    SHA512

    927c8bf70ae806b7876558f17e1118dbcb1d1f7aa28ea478e276b871f80ae71239db6bbcaf67f6cebb35b84965bf56af58c3335d2bf896065e95d419fd89b59b

  • C:\ProgramData\bqhffugz.exe

    Filesize

    399KB

    MD5

    5c1914a1d3b7ccaebcfe1a6f8e05bfcf

    SHA1

    21f033a91fc03a14b41490e2a17244f88bc336ba

    SHA256

    9f51d6e43b7c3ce33ceb82caebcc5f7768afe7f987e78c4c3294612303fec83c

    SHA512

    927c8bf70ae806b7876558f17e1118dbcb1d1f7aa28ea478e276b871f80ae71239db6bbcaf67f6cebb35b84965bf56af58c3335d2bf896065e95d419fd89b59b

  • memory/2424-132-0x0000000075510000-0x0000000075AC1000-memory.dmp

    Filesize

    5.7MB

  • memory/2424-136-0x0000000075510000-0x0000000075AC1000-memory.dmp

    Filesize

    5.7MB

  • memory/4072-133-0x0000000000000000-mapping.dmp

  • memory/4072-137-0x0000000075510000-0x0000000075AC1000-memory.dmp

    Filesize

    5.7MB

  • memory/4072-138-0x0000000075510000-0x0000000075AC1000-memory.dmp

    Filesize

    5.7MB