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Analysis

  • max time kernel
    111s
  • max time network
    105s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/07/2024, 02:27

General

  • Target

    3a98f49098a5bfbfada3220944312a30N.exe

  • Size

    63KB

  • MD5

    3a98f49098a5bfbfada3220944312a30

  • SHA1

    186ccb1e83a6a9f7085f25c0dbee520bb3c3f59f

  • SHA256

    dfb6a42dab45fdb3b7d3e0a5951089a40a0151ba89aac9b23ab78b4b2196c495

  • SHA512

    91531b1964cd25d8be86dd877f116eaa5af2673b890af3a61a67ad57cfb125fd508049895864606da6fc274fa79fcc2f5f2a38cae12f70ef7a7b43949fd8cd23

  • SSDEEP

    1536:fvQoLHjw2iWPKMvw71oLyXQUUqnouy8YXuvooodwwwt111n:fv5Ls27BIJoLyXTUyoutYXCooodwwwth

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
  • UPX packed file 4 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 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\3a98f49098a5bfbfada3220944312a30N.exe
    "C:\Users\Admin\AppData\Local\Temp\3a98f49098a5bfbfada3220944312a30N.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:4784
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\3A98F4~1.EXE > nul
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1452
  • C:\Windows\Debug\pwshost.exe
    C:\Windows\Debug\pwshost.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Checks processor information in registry
    PID:4384

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\Debug\pwshost.exe

    Filesize

    63KB

    MD5

    05eddfff3049e749878575f17dee4152

    SHA1

    c2aa800db3a3260dd42e6c8162f55508675e52b3

    SHA256

    6a13090d68e281169c2fc588aeb1ec109b735de8b1ca4eb7ef569da935f1d336

    SHA512

    a5bc810849794fa9b9b5881fa9ea5242ed60da0ca6262ae8532cd326864e2cbad6b8bd9d92024d01e3e4a816fd40021672f2281e1f43bb5ab467629fc37fafb5

  • memory/4384-6-0x0000000000400000-0x000000000040F000-memory.dmp

    Filesize

    60KB

  • memory/4784-0-0x0000000000400000-0x000000000040F000-memory.dmp

    Filesize

    60KB

  • memory/4784-5-0x0000000000400000-0x000000000040F000-memory.dmp

    Filesize

    60KB