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Resubmissions

09/11/2024, 04:25

241109-e14n2axfjb 10

Analysis

  • max time kernel
    107s
  • max time network
    108s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/11/2024, 04:25

General

  • Target

    Client-built.exe

  • Size

    3.1MB

  • MD5

    2cf22ad073a3f0cc59fedee8bc32edf2

  • SHA1

    3d03e7eff59bc7bb5041e1c199f56fedcbb7353f

  • SHA256

    608c7d8080473c13885a7e93a251ec928bf3d8a12eba7138558076c1aa08ead6

  • SHA512

    6dbc265fbf649460fe39d8b4957dd4d497cf43111f824dab7a4a620100360cae2dea6abedd4645a1cc25561b3560134ca35c3c23f5634b65040fc680312555d0

  • SSDEEP

    49152:PvvI22SsaNYfdPBldt698dBcjHZZSt1J/loGd/qLTHHB72eh2NT:Pvg22SsaNYfdPBldt6+dBcjHZZSvvq

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

193.161.193.99:1194

Mutex

a25b5bbf-cc69-4b0b-a242-9d07a80705d5

Attributes
  • encryption_key

    23DCD2457576BD8C17F35C9C4F50BF16D2C7C161

  • install_name

    FlipHood.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • Quasar payload 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Client-built.exe
    "C:\Users\Admin\AppData\Local\Temp\Client-built.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1612
    • C:\Users\Admin\AppData\Roaming\SubDir\FlipHood.exe
      "C:\Users\Admin\AppData\Roaming\SubDir\FlipHood.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:3944

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\SubDir\FlipHood.exe

    Filesize

    3.1MB

    MD5

    2cf22ad073a3f0cc59fedee8bc32edf2

    SHA1

    3d03e7eff59bc7bb5041e1c199f56fedcbb7353f

    SHA256

    608c7d8080473c13885a7e93a251ec928bf3d8a12eba7138558076c1aa08ead6

    SHA512

    6dbc265fbf649460fe39d8b4957dd4d497cf43111f824dab7a4a620100360cae2dea6abedd4645a1cc25561b3560134ca35c3c23f5634b65040fc680312555d0

  • memory/1612-0-0x00007FFAABF93000-0x00007FFAABF95000-memory.dmp

    Filesize

    8KB

  • memory/1612-1-0x0000000000F20000-0x0000000001244000-memory.dmp

    Filesize

    3.1MB

  • memory/1612-2-0x00007FFAABF90000-0x00007FFAACA51000-memory.dmp

    Filesize

    10.8MB

  • memory/1612-10-0x00007FFAABF90000-0x00007FFAACA51000-memory.dmp

    Filesize

    10.8MB

  • memory/3944-11-0x00007FFAABF90000-0x00007FFAACA51000-memory.dmp

    Filesize

    10.8MB

  • memory/3944-9-0x00007FFAABF90000-0x00007FFAACA51000-memory.dmp

    Filesize

    10.8MB

  • memory/3944-12-0x000000001BCB0000-0x000000001BD00000-memory.dmp

    Filesize

    320KB

  • memory/3944-13-0x000000001BDC0000-0x000000001BE72000-memory.dmp

    Filesize

    712KB

  • memory/3944-14-0x00007FFAABF90000-0x00007FFAACA51000-memory.dmp

    Filesize

    10.8MB