Analysis

  • max time kernel
    122s
  • max time network
    132s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    15-05-2024 17:50

General

  • Target

    0aa9c1791f32d5f01741cd43b3433970_NeikiAnalytics.exe

  • Size

    348KB

  • MD5

    0aa9c1791f32d5f01741cd43b3433970

  • SHA1

    ccd00df6d2461cafc8b1a9c99439de2a61cf1f4a

  • SHA256

    0cfb63a10f1b80b5ffc7547f31e66bb4a3cfb216cddbd0967a929dcecbd0bc35

  • SHA512

    7fddb38d4e9b52317afd3ba48733347551e293a4a26150c7cb6be46c62a688ea9916b9ad2b8d47a0c285bcff7c3d90ff57bc7fbb4701388a18d30a3caa2d7dc4

  • SSDEEP

    6144:K++qQ4i1FFiEKZZ69jDbOby8YkDPxHtO/7EIa:gplir6l//nQPJtC7EIa

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

Victim

C2

91.122.60.255:4782

Mutex

QSR_MUTEX_hvw90hLuFOtv0Kig6i

Attributes
  • encryption_key

    hnFV3eO5HAJCHDY9IUGv

  • install_name

    MicrosoftMonitor.exe

  • log_directory

    Logs

  • reconnect_delay

    300

  • startup_key

    MicrosoftMonitor

  • subdirectory

    WindowsDrv

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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0aa9c1791f32d5f01741cd43b3433970_NeikiAnalytics.exe
    "C:\Users\Admin\AppData\Local\Temp\0aa9c1791f32d5f01741cd43b3433970_NeikiAnalytics.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1936
    • C:\Windows\SysWOW64\schtasks.exe
      "schtasks" /create /tn "MicrosoftMonitor" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\0aa9c1791f32d5f01741cd43b3433970_NeikiAnalytics.exe" /rl HIGHEST /f
      2⤵
      • Creates scheduled task(s)
      PID:2876
    • C:\Users\Admin\AppData\Roaming\WindowsDrv\MicrosoftMonitor.exe
      "C:\Users\Admin\AppData\Roaming\WindowsDrv\MicrosoftMonitor.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2728
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks" /create /tn "MicrosoftMonitor" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\WindowsDrv\MicrosoftMonitor.exe" /rl HIGHEST /f
        3⤵
        • Creates scheduled task(s)
        PID:2208

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\WindowsDrv\MicrosoftMonitor.exe
    Filesize

    348KB

    MD5

    0aa9c1791f32d5f01741cd43b3433970

    SHA1

    ccd00df6d2461cafc8b1a9c99439de2a61cf1f4a

    SHA256

    0cfb63a10f1b80b5ffc7547f31e66bb4a3cfb216cddbd0967a929dcecbd0bc35

    SHA512

    7fddb38d4e9b52317afd3ba48733347551e293a4a26150c7cb6be46c62a688ea9916b9ad2b8d47a0c285bcff7c3d90ff57bc7fbb4701388a18d30a3caa2d7dc4

  • memory/1936-0-0x000000007407E000-0x000000007407F000-memory.dmp
    Filesize

    4KB

  • memory/1936-1-0x0000000001080000-0x00000000010DE000-memory.dmp
    Filesize

    376KB

  • memory/1936-2-0x0000000074070000-0x000000007475E000-memory.dmp
    Filesize

    6.9MB

  • memory/1936-13-0x0000000074070000-0x000000007475E000-memory.dmp
    Filesize

    6.9MB

  • memory/2728-11-0x0000000074070000-0x000000007475E000-memory.dmp
    Filesize

    6.9MB

  • memory/2728-10-0x0000000000020000-0x000000000007E000-memory.dmp
    Filesize

    376KB

  • memory/2728-12-0x0000000074070000-0x000000007475E000-memory.dmp
    Filesize

    6.9MB

  • memory/2728-15-0x0000000074070000-0x000000007475E000-memory.dmp
    Filesize

    6.9MB

  • memory/2728-16-0x0000000074070000-0x000000007475E000-memory.dmp
    Filesize

    6.9MB