Analysis

  • max time kernel
    1727s
  • max time network
    1154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-05-2024 02:53

General

  • Target

    SynV2.exe

  • Size

    3.1MB

  • MD5

    007e5cb679d162307ae1e97aae6b60bb

  • SHA1

    a03429b7d5bf4fbe507863f110782b17b3de98ef

  • SHA256

    82c4ebbea3a1cf61cb81196e865149b679df63dacaceef1e1242ce9b855aedf7

  • SHA512

    eb2298577149e34238475eee4329ac031efe4433ca8d3b9951bc1914c52e633a8c4b1034c4ff9b6f79364250cede584b25d9c13556f4fe35ec6be5ac0661a2c0

  • SSDEEP

    49152:pvjt62XlaSFNWPjljiFa2RoUYI204lhhgvJ6EoGdxsTHHB72eh2NT:pvx62XlaSFNWPjljiFXRoUYIchm

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Shiba

C2

sites-mood.gl.at.ply.gg:50107

Mutex

987c652c-2a4e-4c5d-bc39-00c8c0f35c5c

Attributes
  • encryption_key

    A88D7FED7F655EBDC4F99C21BAE5EC62300AADC7

  • install_name

    $sxr-insta.exe

  • log_directory

    $sxr-logs

  • reconnect_delay

    1000

  • startup_key

    $sxr-mstha

  • subdirectory

    $sxr-start

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SynV2.exe
    "C:\Users\Admin\AppData\Local\Temp\SynV2.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2808
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\I9is9tmIS9hb.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2176
      • C:\Windows\system32\chcp.com
        chcp 65001
        3⤵
          PID:2668
        • C:\Windows\system32\PING.EXE
          ping -n 10 localhost
          3⤵
          • Runs ping.exe
          PID:748

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\I9is9tmIS9hb.bat

      Filesize

      206B

      MD5

      57e10fcabdf2c8db8a7940669cb140d7

      SHA1

      3630d9e2c4a11626793b6fbbea6f20d0b57cf210

      SHA256

      0393454d8a0ad4f954337f39d82066d4408f9f4f50029d4cef141cf3202541a1

      SHA512

      8185f5c40567a02c3aea7a85f261bd691e5c0d93bab39102e2a81a8f700e97126bef149678a7d2583484f216a95dc6cc509e92660f8f79ee694d08219b302ca2

    • memory/2808-1-0x0000000000F30000-0x0000000001254000-memory.dmp

      Filesize

      3.1MB

    • memory/2808-0-0x00007FFAE00E3000-0x00007FFAE00E5000-memory.dmp

      Filesize

      8KB

    • memory/2808-2-0x00007FFAE00E0000-0x00007FFAE0BA1000-memory.dmp

      Filesize

      10.8MB

    • memory/2808-3-0x000000001BDC0000-0x000000001BE10000-memory.dmp

      Filesize

      320KB

    • memory/2808-4-0x000000001C620000-0x000000001C6D2000-memory.dmp

      Filesize

      712KB

    • memory/2808-7-0x000000001C5A0000-0x000000001C5B2000-memory.dmp

      Filesize

      72KB

    • memory/2808-8-0x000000001D020000-0x000000001D05C000-memory.dmp

      Filesize

      240KB

    • memory/2808-9-0x00007FFAE00E3000-0x00007FFAE00E5000-memory.dmp

      Filesize

      8KB

    • memory/2808-10-0x00007FFAE00E0000-0x00007FFAE0BA1000-memory.dmp

      Filesize

      10.8MB

    • memory/2808-15-0x00007FFAE00E0000-0x00007FFAE0BA1000-memory.dmp

      Filesize

      10.8MB