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Analysis

  • max time kernel
    111s
  • max time network
    93s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/09/2024, 06:52

General

  • Target

    53fd48d989c02c4cfd7d7cdbc9540940N.exe

  • Size

    15KB

  • MD5

    53fd48d989c02c4cfd7d7cdbc9540940

  • SHA1

    ba8ebe275b24c823366ba4f06ccf2a0b6d126f72

  • SHA256

    2ee071579da35565f77a2dc017d1d86f82a08bb1922e3f2e0e9507e292b39e15

  • SHA512

    8d61cb60c33df2eba0a92f7d9282e129e8989a2e619e6d247c0befd44d9c91d417a4111715d1d6a1551c6899efff3e043686c7ae35f74fb4a6c2b06342d9dead

  • SSDEEP

    384:IO3qdXlIQV0YXd45xuYiMcRWnPbeVGWLwbbbVHHHH4fff+:IO3EVdV0YXd4DuicNV3Ffff+

Malware Config

Signatures

  • Sets file to hidden 1 TTPs 1 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • UPX packed file 7 IoCs

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

  • Indicator Removal: File Deletion 1 TTPs

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

  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\53fd48d989c02c4cfd7d7cdbc9540940N.exe
    "C:\Users\Admin\AppData\Local\Temp\53fd48d989c02c4cfd7d7cdbc9540940N.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:3352
    • C:\Windows\SysWOW64\attrib.exe
      attrib +a +s +h +r C:\Windows\Debug\lyghost.exe
      2⤵
      • Sets file to hidden
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Views/modifies file attributes
      PID:4772
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\53FD48~1.EXE > nul
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4376
  • C:\Windows\Debug\lyghost.exe
    C:\Windows\Debug\lyghost.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4324

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\Debug\lyghost.exe

    Filesize

    15KB

    MD5

    3287fc6d3ba06d803ee9882aa2358f78

    SHA1

    f40a6bcc07a60d8371a930b76860706740259d1c

    SHA256

    27296b60ff832acd712e0b4d3ffe13a8ff20deb1f853ad44f91101fbdec47294

    SHA512

    c8c5818136558dbd58c297499bc3fbd5cc44df55214f2a74706446c9d425f48cbf7041a37a5036fbd1694febcc116e111aac026e9fd4e0f937202891f70ae5c2

  • memory/3352-0-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/3352-6-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4324-7-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4324-10-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4324-13-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/4324-16-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB