Analysis

  • max time kernel
    141s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-11-2024 02:37

General

  • Target

    c5f307b4f92de8f2098c8da83d61a7ec4c42a6a0aa7d22379849b109f8bf2db9.exe

  • Size

    50KB

  • MD5

    a16d02806623ff581fe503b35fd7db32

  • SHA1

    c9c6895d6497f0b07e23f2103181d912167f81dd

  • SHA256

    c5f307b4f92de8f2098c8da83d61a7ec4c42a6a0aa7d22379849b109f8bf2db9

  • SHA512

    ca1d45e8015c03d77b08ff4193b916b1ffb1d2971418186cc42e6ce157eb3def75d219eca04f7206559f112893b7cae5049e6b6bcf6f39c0544d4adc963af0a4

  • SSDEEP

    1536:MLdY8B4HFqn5yZHALya6idstrrrd++CCCC1:seHon5yZHDa6istrrrd++CCCC1

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

  • UPX packed file 8 IoCs

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

  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c5f307b4f92de8f2098c8da83d61a7ec4c42a6a0aa7d22379849b109f8bf2db9.exe
    "C:\Users\Admin\AppData\Local\Temp\c5f307b4f92de8f2098c8da83d61a7ec4c42a6a0aa7d22379849b109f8bf2db9.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1888
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\C5F307~1.EXE > nul
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3296
  • C:\Windows\Debug\bqchost.exe
    C:\Windows\Debug\bqchost.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    PID:4192

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\Debug\bqchost.exe

    Filesize

    50KB

    MD5

    4b097b4931b4412c01671386bef10f33

    SHA1

    1353d125b4e9f788b1535b92a095ded3cb94de31

    SHA256

    a3309e8fcb57e973456b4d173fdc2a088f9b510100a3f1697b2b74ce28ab1218

    SHA512

    74a4e776d46e1551826873e145a7de467be7b095a79678619d0dd1f95205ce8dc56905297a75e6000dac61326643c0c96ddecc23de442a37ed7641f012cd4db9

  • memory/1888-0-0x0000000010000000-0x000000001000E000-memory.dmp

    Filesize

    56KB

  • memory/1888-3-0x0000000010000000-0x000000001000E000-memory.dmp

    Filesize

    56KB

  • memory/1888-13-0x0000000010000000-0x000000001000E000-memory.dmp

    Filesize

    56KB

  • memory/4192-11-0x0000000010000000-0x000000001000E000-memory.dmp

    Filesize

    56KB

  • memory/4192-12-0x0000000010000000-0x000000001000E000-memory.dmp

    Filesize

    56KB

  • memory/4192-15-0x0000000010000000-0x000000001000E000-memory.dmp

    Filesize

    56KB

  • memory/4192-17-0x0000000010000000-0x000000001000E000-memory.dmp

    Filesize

    56KB

  • memory/4192-18-0x0000000010000000-0x000000001000E000-memory.dmp

    Filesize

    56KB