Analysis

  • max time kernel
    129s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-02-2023 00:51

General

  • Target

    Cold War Tool Free by R7XZ2.exe

  • Size

    664KB

  • MD5

    28b47c7dd2743e312aa5665d2237bbaf

  • SHA1

    8c0b0bd93738f6d3c7299073fa046a9923c43d94

  • SHA256

    0e75d20dc4bbc6e47d8af2a28ff28efac659bb5b6d1ba69a904ac3d338e0e2cb

  • SHA512

    75766bfcf5b90f0ab6c755e6d531377e73838aba956d1597e10d451172ba4df1243a26bc95b996e55f8b013c862e21e06eb48dfa1f00dce131e6e296f3a101f8

  • SSDEEP

    6144:yTEgdc0YXXbZvdo6EsRwdfuniFBlh/6KnFwQHocE8cb8F9bObLGnJ2cTR3j:yTEgdfY9do6Wu6hFwMHMn+4cdj

Malware Config

Extracted

Family

quasar

Version

1.4.0

Botnet

ColdWar Tool by FXC11

C2

91.121.214.19:1605

Mutex

ee2a25d7-e4a9-452c-9a5f-a26bb677dfa1

Attributes
  • encryption_key

    F9F475501C6D2B1102A497EB1C3D52C90B8E007E

  • install_name

    QuickPump.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Windows Defender Real Time Protection

  • subdirectory

    SubDir

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 3 IoCs
  • Executes dropped EXE 1 IoCs
  • Drops file in Program Files directory 3 IoCs
  • 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Cold War Tool Free by R7XZ2.exe
    "C:\Users\Admin\AppData\Local\Temp\Cold War Tool Free by R7XZ2.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4032
    • C:\Windows\SYSTEM32\schtasks.exe
      "schtasks" /create /tn "Windows Defender Real Time Protection" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\Cold War Tool Free by R7XZ2.exe" /rl HIGHEST /f
      2⤵
      • Creates scheduled task(s)
      PID:4148
    • C:\Program Files\SubDir\QuickPump.exe
      "C:\Program Files\SubDir\QuickPump.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4636
      • C:\Windows\SYSTEM32\schtasks.exe
        "schtasks" /create /tn "Windows Defender Real Time Protection" /sc ONLOGON /tr "C:\Program Files\SubDir\QuickPump.exe" /rl HIGHEST /f
        3⤵
        • Creates scheduled task(s)
        PID:3532

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Program Files\SubDir\QuickPump.exe
    Filesize

    664KB

    MD5

    28b47c7dd2743e312aa5665d2237bbaf

    SHA1

    8c0b0bd93738f6d3c7299073fa046a9923c43d94

    SHA256

    0e75d20dc4bbc6e47d8af2a28ff28efac659bb5b6d1ba69a904ac3d338e0e2cb

    SHA512

    75766bfcf5b90f0ab6c755e6d531377e73838aba956d1597e10d451172ba4df1243a26bc95b996e55f8b013c862e21e06eb48dfa1f00dce131e6e296f3a101f8

  • C:\Program Files\SubDir\QuickPump.exe
    Filesize

    664KB

    MD5

    28b47c7dd2743e312aa5665d2237bbaf

    SHA1

    8c0b0bd93738f6d3c7299073fa046a9923c43d94

    SHA256

    0e75d20dc4bbc6e47d8af2a28ff28efac659bb5b6d1ba69a904ac3d338e0e2cb

    SHA512

    75766bfcf5b90f0ab6c755e6d531377e73838aba956d1597e10d451172ba4df1243a26bc95b996e55f8b013c862e21e06eb48dfa1f00dce131e6e296f3a101f8

  • memory/3532-140-0x0000000000000000-mapping.dmp
  • memory/4032-132-0x00000000002A0000-0x000000000034C000-memory.dmp
    Filesize

    688KB

  • memory/4032-133-0x00007FF834C30000-0x00007FF8356F1000-memory.dmp
    Filesize

    10.8MB

  • memory/4032-138-0x00007FF834C30000-0x00007FF8356F1000-memory.dmp
    Filesize

    10.8MB

  • memory/4148-134-0x0000000000000000-mapping.dmp
  • memory/4636-135-0x0000000000000000-mapping.dmp
  • memory/4636-139-0x00007FF834C30000-0x00007FF8356F1000-memory.dmp
    Filesize

    10.8MB

  • memory/4636-141-0x000000001C380000-0x000000001C3D0000-memory.dmp
    Filesize

    320KB

  • memory/4636-142-0x000000001C490000-0x000000001C542000-memory.dmp
    Filesize

    712KB

  • memory/4636-143-0x00007FF834C30000-0x00007FF8356F1000-memory.dmp
    Filesize

    10.8MB