Analysis

  • max time kernel
    127s
  • max time network
    136s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    17-06-2024 04:45

General

  • Target

    b6d27d9de9c98e06a834b4a5e3fdc8a3_JaffaCakes118.exe

  • Size

    349KB

  • MD5

    b6d27d9de9c98e06a834b4a5e3fdc8a3

  • SHA1

    32e80bb0a35effca77cb6397de418a94437d446d

  • SHA256

    74742ba79b57e06294eb3bfb448a879efa96010e1e9d3b3cdf3a712c5ed124ac

  • SHA512

    b71c11bf1108e5997f350bb097c2acc3eb8dbb568d852b9830d17efa4a140d17b3cb835b489103357cf15abd0b7eeceec36c8249908d13b6bf083dec0e3407e2

  • SSDEEP

    6144:uK2J10qdSlEc39HGX/dcUoOsKNVownkbX+TTbsEAk0G:uKFplKNVo02+TfsEAk0G

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

111111111

C2

139.129.54.18:4782

Mutex

QSR_MUTEX_RhXdelp3vz1zkVSxiU

Attributes
  • encryption_key

    DTgqF0OhA9OI0IK5lKb7

  • install_name

    QQProtect.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    QQProtect

  • subdirectory

    Copyright

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 3 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b6d27d9de9c98e06a834b4a5e3fdc8a3_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\b6d27d9de9c98e06a834b4a5e3fdc8a3_JaffaCakes118.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1848
    • C:\Windows\SysWOW64\schtasks.exe
      "schtasks" /create /tn "QQProtect" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\b6d27d9de9c98e06a834b4a5e3fdc8a3_JaffaCakes118.exe" /rl HIGHEST /f
      2⤵
      • Creates scheduled task(s)
      PID:2292
    • C:\Users\Admin\AppData\Roaming\Copyright\QQProtect.exe
      "C:\Users\Admin\AppData\Roaming\Copyright\QQProtect.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3068
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks" /create /tn "QQProtect" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\Copyright\QQProtect.exe" /rl HIGHEST /f
        3⤵
        • Creates scheduled task(s)
        PID:2620

Network

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Roaming\Copyright\QQProtect.exe
    Filesize

    349KB

    MD5

    b6d27d9de9c98e06a834b4a5e3fdc8a3

    SHA1

    32e80bb0a35effca77cb6397de418a94437d446d

    SHA256

    74742ba79b57e06294eb3bfb448a879efa96010e1e9d3b3cdf3a712c5ed124ac

    SHA512

    b71c11bf1108e5997f350bb097c2acc3eb8dbb568d852b9830d17efa4a140d17b3cb835b489103357cf15abd0b7eeceec36c8249908d13b6bf083dec0e3407e2

  • memory/1848-0-0x0000000074BFE000-0x0000000074BFF000-memory.dmp
    Filesize

    4KB

  • memory/1848-1-0x00000000013C0000-0x000000000141E000-memory.dmp
    Filesize

    376KB

  • memory/1848-2-0x0000000074BF0000-0x00000000752DE000-memory.dmp
    Filesize

    6.9MB

  • memory/1848-12-0x0000000074BF0000-0x00000000752DE000-memory.dmp
    Filesize

    6.9MB

  • memory/3068-10-0x0000000000360000-0x00000000003BE000-memory.dmp
    Filesize

    376KB

  • memory/3068-11-0x0000000074BF0000-0x00000000752DE000-memory.dmp
    Filesize

    6.9MB

  • memory/3068-13-0x0000000074BF0000-0x00000000752DE000-memory.dmp
    Filesize

    6.9MB

  • memory/3068-14-0x0000000074BF0000-0x00000000752DE000-memory.dmp
    Filesize

    6.9MB