Analysis

  • max time kernel
    118s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    18-09-2024 14:21

General

  • Target

    CATALOGUE2024.GBLTD.exe

  • Size

    1.1MB

  • MD5

    d276007d99a3f3aa1f0c9d85857f580b

  • SHA1

    d2a920b76ceb676c5cced1504bea5056824c942d

  • SHA256

    4b32b987a1815005b4cce599f2691cf7600433da1886a3e4d79fa80ac85df8d7

  • SHA512

    ba1fb1e882c3d4f86d2cb02fe2b7883de1b47bb16fb9e3e418d36a77f8d1e87fb13a4df2557db909ee0b4896f38fda0026ca8002d19c1b26e89c090bec906639

  • SSDEEP

    24576:peq3eRCl8rvXzpmsCraU8hgHjUBE5zxLv0SPuvi3lnQUpxLJY:IRCirbjU8hgDU6CWoiWixO

Malware Config

Extracted

Family

quasar

Version

2.1.0.0

Botnet

ShanjQhandohDBT4

C2

127.0.0.1:4782

Mutex

VNM_MUTEX_TsedL3VlE1RYgzxmD0

Attributes
  • encryption_key

    n36uZkPlhyNINnnTiI80

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Microsoft Corporation

  • subdirectory

    SubDir

Signatures

  • Contains code to disable Windows Defender 5 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • Modifies Windows Defender Real-time Protection settings 3 TTPs 4 IoCs
  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 5 IoCs
  • VenomRAT

    VenomRAT is a modified version of QuasarRAT with some added features, such as rootkit and stealer capabilites.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Deletes itself 1 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 13 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\CATALOGUE2024.GBLTD.exe
    "C:\Users\Admin\AppData\Local\Temp\CATALOGUE2024.GBLTD.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2120
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\JxgqJBqcy.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2712
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JxgqJBqcy" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFF74.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2340
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
      2⤵
      • Modifies Windows Defender Real-time Protection settings
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2364
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks" /create /tn "Microsoft Corporation" /sc ONLOGON /tr "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe" /rl HIGHEST /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2512
      • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
        "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:1400
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "powershell" Get-MpPreference -verbose
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:832
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /k start /b del /q/f/s %TEMP%\* & exit
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2128
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /K del /q/f/s C:\Users\Admin\AppData\Local\Temp\*
          4⤵
          • Deletes itself
          • System Location Discovery: System Language Discovery
          PID:904
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\MK26JioqKKAP.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1820
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:708
        • C:\Windows\SysWOW64\PING.EXE
          ping -n 10 localhost
          4⤵
          • System Location Discovery: System Language Discovery
          • System Network Configuration Discovery: Internet Connection Discovery
          • Runs ping.exe
          PID:968
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1048

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Cab2925.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\MK26JioqKKAP.bat

    Filesize

    216B

    MD5

    c872074c9d4e1fb126be21746361f93d

    SHA1

    721852e464190a564c0e5bc0cb1676e95bf971c5

    SHA256

    366cd4beb02d043a20b0c1c0a5aa44d5859cd065914cd3976d85533c5c1f00e5

    SHA512

    6bf04ca8ac953861a3d2bc3dc2fb01e0eed6efabb6bb9cd7fde7fcbb7800add5d44de237d6f89c8683c2cfc4b3228a0723a69b190670297f237bc52d88cd32da

  • C:\Users\Admin\AppData\Local\Temp\Tar2937.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • C:\Users\Admin\AppData\Local\Temp\tmpFF74.tmp

    Filesize

    1KB

    MD5

    55d97fdc14fb4006bc7a4bad416c5945

    SHA1

    61b211f11fc569dc501a32daf6a2989cccf8f084

    SHA256

    78b6c3c6e953bb850b9f7cf761cc680fd78fdf54c724a89240580644f86b4d43

    SHA512

    c3bf92f35658661ab41b21d598a53cfb4cbd8dcbdb79eafefb0df98c1d5a5026e122c0b873ce45741a6ee05486c7c358776910a48644ef4db145887856569369

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

    Filesize

    7KB

    MD5

    b15c6a07f378a47ea7968a462f199fd6

    SHA1

    ddce8b2bb8c94cd78ec7b0c9f3496296e43bb9f8

    SHA256

    cf8c89534a2103317b0969c23085c2f5a9cfecc69ce3df27d61bbb639422955c

    SHA512

    8d5f175ebaeeb67d4b69a6fb5a615223498eb7a5ff8a2dcc01bb4ae5c3694a91a3a754670e900e26ad4970d66d5d646683c9f125eadd9890a9ba403bb42e4e73

  • \Users\Admin\AppData\Roaming\SubDir\Client.exe

    Filesize

    255KB

    MD5

    9af17c8393f0970ee5136bd3ffa27001

    SHA1

    4b285b72c1a11285a25f31f2597e090da6bbc049

    SHA256

    71d6a7a3fe5f8dc878cd5bdeca0e09177efb85c01e9a8a10a95262cabefaa019

    SHA512

    b90f7de7d5ce72dccb264c7ba609e173c529b9d99ed9a63f88632bc58b1a994bbb727365f519c73b979f8918bd6de3c39a9f0347eb3a4bccdce4b2772a6516a3

  • memory/1048-101-0x0000000000FC0000-0x0000000001000000-memory.dmp

    Filesize

    256KB

  • memory/1400-34-0x00000000003B0000-0x00000000003F0000-memory.dmp

    Filesize

    256KB

  • memory/2120-6-0x0000000007CF0000-0x0000000007DBE000-memory.dmp

    Filesize

    824KB

  • memory/2120-26-0x0000000074790000-0x0000000074E7E000-memory.dmp

    Filesize

    6.9MB

  • memory/2120-1-0x0000000000BA0000-0x0000000000CC0000-memory.dmp

    Filesize

    1.1MB

  • memory/2120-2-0x0000000074790000-0x0000000074E7E000-memory.dmp

    Filesize

    6.9MB

  • memory/2120-3-0x0000000000630000-0x000000000063E000-memory.dmp

    Filesize

    56KB

  • memory/2120-4-0x000000007479E000-0x000000007479F000-memory.dmp

    Filesize

    4KB

  • memory/2120-5-0x0000000074790000-0x0000000074E7E000-memory.dmp

    Filesize

    6.9MB

  • memory/2120-0-0x000000007479E000-0x000000007479F000-memory.dmp

    Filesize

    4KB

  • memory/2364-20-0x0000000000400000-0x000000000048C000-memory.dmp

    Filesize

    560KB

  • memory/2364-14-0x0000000000400000-0x000000000048C000-memory.dmp

    Filesize

    560KB

  • memory/2364-16-0x0000000000400000-0x000000000048C000-memory.dmp

    Filesize

    560KB

  • memory/2364-18-0x0000000000400000-0x000000000048C000-memory.dmp

    Filesize

    560KB

  • memory/2364-25-0x0000000000400000-0x000000000048C000-memory.dmp

    Filesize

    560KB

  • memory/2364-24-0x0000000000400000-0x000000000048C000-memory.dmp

    Filesize

    560KB

  • memory/2364-23-0x0000000000400000-0x000000000048C000-memory.dmp

    Filesize

    560KB

  • memory/2364-22-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

    Filesize

    4KB