Analysis

  • max time kernel
    114s
  • max time network
    118s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-10-2024 00:12

General

  • Target

    a7356edf0a0c0a2b003ade063ff5d8817c9d73fc3a7b4f4605f03d44cfd602fcN.exe

  • Size

    55KB

  • MD5

    7d38e6e8b44aac1d4e7a3eb659837520

  • SHA1

    5a7c139618c8eb4ceb1e897a9e41b5cafceaf465

  • SHA256

    a7356edf0a0c0a2b003ade063ff5d8817c9d73fc3a7b4f4605f03d44cfd602fc

  • SHA512

    ae76d28657016ef48aad993ba53ee34a1ccba6f9c8af70ad9b458b3e877b828015ec8f8fd3585b25a579d4cf1aaf5c9e3c9e28b5b6fcf133b67afc4439a6e78b

  • SSDEEP

    768:l7kOpEBhA/vMHTi9bDIS+FPPPPrnMXOFc8pnD+orPPPPP:dkOpvnYi9boMXOFcMD+o

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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.

  • Suspicious use of AdjustPrivilegeToken 25 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a7356edf0a0c0a2b003ade063ff5d8817c9d73fc3a7b4f4605f03d44cfd602fcN.exe
    "C:\Users\Admin\AppData\Local\Temp\a7356edf0a0c0a2b003ade063ff5d8817c9d73fc3a7b4f4605f03d44cfd602fcN.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3560
    • C:\Windows\OneDrive.exe
      "C:\Windows\OneDrive.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:4268
    • C:\Windows\SysWOW64\attrib.exe
      attrib +h +r +s "C:\Windows\OneDrive.exe"
      2⤵
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Views/modifies file attributes
      PID:2020

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows.lnk

    Filesize

    1KB

    MD5

    9f8aa8d72184c88280eba793825f8467

    SHA1

    bd4c4fd7959b7d69b847d2757ce349f6b0b79c6b

    SHA256

    c07f1fb16ddeb36694a50e400e6a8d30480fb93755cc9befc6d465fd2e961590

    SHA512

    acabb4a6667dea6b76a2c5556a31c844b8781f4cf51cb0a6cc46325912c0ec9cbb7b5be25724147156c093c17fb9124bdb92b9e1ec5865a749a529b3f3ac35c3

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Windows.lnk

    Filesize

    1KB

    MD5

    ede91f3d33a9a017174c0031e96007f0

    SHA1

    c52360c9fff6e5465022b934c3a74b3b211a0be6

    SHA256

    334ed85785265b6fbefd757b7db0b3751db8867bd37e9f16bf538e69ed6d685a

    SHA512

    2c52dd4127207527611419baadeea7ce290243575121c60c9670ee77c72a93dc1e0aa8c487c3bb2ee2ab1230f96821ecff799543849646ad3eded94afd632627

  • C:\Windows\OneDrive.exe

    Filesize

    55KB

    MD5

    7d38e6e8b44aac1d4e7a3eb659837520

    SHA1

    5a7c139618c8eb4ceb1e897a9e41b5cafceaf465

    SHA256

    a7356edf0a0c0a2b003ade063ff5d8817c9d73fc3a7b4f4605f03d44cfd602fc

    SHA512

    ae76d28657016ef48aad993ba53ee34a1ccba6f9c8af70ad9b458b3e877b828015ec8f8fd3585b25a579d4cf1aaf5c9e3c9e28b5b6fcf133b67afc4439a6e78b

  • memory/3560-0-0x0000000075202000-0x0000000075203000-memory.dmp

    Filesize

    4KB

  • memory/3560-1-0x0000000075200000-0x00000000757B1000-memory.dmp

    Filesize

    5.7MB

  • memory/3560-2-0x0000000075200000-0x00000000757B1000-memory.dmp

    Filesize

    5.7MB

  • memory/3560-5-0x0000000075202000-0x0000000075203000-memory.dmp

    Filesize

    4KB

  • memory/3560-6-0x0000000075200000-0x00000000757B1000-memory.dmp

    Filesize

    5.7MB

  • memory/3560-16-0x0000000075200000-0x00000000757B1000-memory.dmp

    Filesize

    5.7MB

  • memory/4268-17-0x0000000075200000-0x00000000757B1000-memory.dmp

    Filesize

    5.7MB

  • memory/4268-22-0x0000000075200000-0x00000000757B1000-memory.dmp

    Filesize

    5.7MB