Analysis

  • max time kernel
    140s
  • max time network
    129s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240910-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-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 1 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 1 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.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 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 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 41 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\CATALOGUE2024.GBLTD.exe
    "C:\Users\Admin\AppData\Local\Temp\CATALOGUE2024.GBLTD.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4704
    • 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:3180
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JxgqJBqcy" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2159.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3088
    • 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
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:836
      • 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:4020
      • 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:5100
      • 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:4556
      • 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:1344
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /K del /q/f/s C:\Users\Admin\AppData\Local\Temp\*
          4⤵
          • System Location Discovery: System Language Discovery
          PID:4916
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\vFVppUpQGl4k.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:4876
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1076
        • 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:2476
        • 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:1608

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\MSBuild.exe.log

    Filesize

    1KB

    MD5

    10eab9c2684febb5327b6976f2047587

    SHA1

    a12ed54146a7f5c4c580416aecb899549712449e

    SHA256

    f49dbd55029bfbc15134f7c6a4f967d6c39142c63f2e8f1f8c78fab108a2c928

    SHA512

    7e5fd90fffae723bd0c662a90e0730b507805f072771ee673d1d8c262dbf60c8a03ba5fe088f699a97c2e886380de158b2ccd59ee62e3d012dd6dd14ea9d0e50

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

    Filesize

    2KB

    MD5

    3d086a433708053f9bf9523e1d87a4e8

    SHA1

    b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

    SHA256

    6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

    SHA512

    931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    18KB

    MD5

    61487be566b2ef97727a176ddfa521b4

    SHA1

    ee1fa8ee321893f4b51d7b9965a6ec1de11e253e

    SHA256

    cc0a9821bf049fac24369e950dd24d331f6e5773b6a8f974686c83fbc6dcfa5f

    SHA512

    799527194edf9ffff195adeac6f9ad1dc4dd5e898d2a340d3792016f14090260ad5e6c883ee046a4cae13f5d6711339d8d79017c3849881a5900006b71ae408c

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_adejcyra.1tk.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp2159.tmp

    Filesize

    1KB

    MD5

    5afed88e27d0282f6cab071c9c21aaaa

    SHA1

    e9504983fb9d4087ed7f3ed1bf4a2ce0de2763c7

    SHA256

    bdb78e82fd1a9cf27edb9734a568b6e2019e918b73c6b8a27e51c484dc3b1cd2

    SHA512

    025ad880f0ac2a07e6abcf5779efacbad90b8d9eee5faa5c5bcf7173d2e54298549a05f96934daba16bfce5a4cb4c1dc09ca55d79920dbbefe24919e3c10a142

  • C:\Users\Admin\AppData\Local\Temp\vFVppUpQGl4k.bat

    Filesize

    216B

    MD5

    63ec053800094c81805e61130092ded7

    SHA1

    8a012d95375c1eeff44538647e14f4ef0aa7d998

    SHA256

    71f42f8869b66c8c1ce247442ce89655b1be75814c1fd0226ede98f4720e3f26

    SHA512

    445e85ed823b2da33e171fcee7d8fe41b1f7c28d22214f7d581939426e639aefb020a3b83446c6448e9189d245f188d6504cb0e59141090a970af8f4a4e6eb3d

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

    Filesize

    256KB

    MD5

    8fdf47e0ff70c40ed3a17014aeea4232

    SHA1

    e6256a0159688f0560b015da4d967f41cbf8c9bd

    SHA256

    ed9884bac608c06b7057037cc91d90e4ae5f74dd2dbce2af476699c6d4492d82

    SHA512

    bd69d092ed4f9c5e1f24eaf5ec79fb316469d53849dc798fae0fcba5e90869b77ee924c23cc6f692198ff25827ab60ad47bb46cadd6e0aadde7731cbafb013be

  • memory/836-104-0x0000000074B10000-0x00000000752C0000-memory.dmp

    Filesize

    7.7MB

  • memory/836-42-0x0000000006AD0000-0x0000000006B0C000-memory.dmp

    Filesize

    240KB

  • memory/836-41-0x0000000006690000-0x00000000066A2000-memory.dmp

    Filesize

    72KB

  • memory/836-99-0x0000000074B10000-0x00000000752C0000-memory.dmp

    Filesize

    7.7MB

  • memory/836-20-0x0000000000400000-0x000000000048C000-memory.dmp

    Filesize

    560KB

  • memory/836-25-0x0000000074B10000-0x00000000752C0000-memory.dmp

    Filesize

    7.7MB

  • memory/836-23-0x0000000074B10000-0x00000000752C0000-memory.dmp

    Filesize

    7.7MB

  • memory/3180-39-0x00000000062C0000-0x00000000062DE000-memory.dmp

    Filesize

    120KB

  • memory/3180-81-0x0000000007920000-0x000000000793A000-memory.dmp

    Filesize

    104KB

  • memory/3180-15-0x0000000002990000-0x00000000029C6000-memory.dmp

    Filesize

    216KB

  • memory/3180-16-0x0000000074B10000-0x00000000752C0000-memory.dmp

    Filesize

    7.7MB

  • memory/3180-17-0x00000000054D0000-0x0000000005AF8000-memory.dmp

    Filesize

    6.2MB

  • memory/3180-19-0x0000000074B10000-0x00000000752C0000-memory.dmp

    Filesize

    7.7MB

  • memory/3180-95-0x0000000074B10000-0x00000000752C0000-memory.dmp

    Filesize

    7.7MB

  • memory/3180-27-0x0000000005BD0000-0x0000000005C36000-memory.dmp

    Filesize

    408KB

  • memory/3180-21-0x0000000074B10000-0x00000000752C0000-memory.dmp

    Filesize

    7.7MB

  • memory/3180-28-0x0000000005CB0000-0x0000000005D16000-memory.dmp

    Filesize

    408KB

  • memory/3180-26-0x0000000005B30000-0x0000000005B52000-memory.dmp

    Filesize

    136KB

  • memory/3180-38-0x0000000005D20000-0x0000000006074000-memory.dmp

    Filesize

    3.3MB

  • memory/3180-82-0x0000000007900000-0x0000000007908000-memory.dmp

    Filesize

    32KB

  • memory/3180-40-0x0000000006300000-0x000000000634C000-memory.dmp

    Filesize

    304KB

  • memory/3180-80-0x0000000007820000-0x0000000007834000-memory.dmp

    Filesize

    80KB

  • memory/3180-79-0x0000000007810000-0x000000000781E000-memory.dmp

    Filesize

    56KB

  • memory/3180-44-0x0000000006880000-0x00000000068B2000-memory.dmp

    Filesize

    200KB

  • memory/3180-55-0x00000000072A0000-0x00000000072BE000-memory.dmp

    Filesize

    120KB

  • memory/3180-59-0x00000000072C0000-0x0000000007363000-memory.dmp

    Filesize

    652KB

  • memory/3180-78-0x00000000077E0000-0x00000000077F1000-memory.dmp

    Filesize

    68KB

  • memory/3180-77-0x0000000007860000-0x00000000078F6000-memory.dmp

    Filesize

    600KB

  • memory/3180-76-0x0000000007650000-0x000000000765A000-memory.dmp

    Filesize

    40KB

  • memory/3180-65-0x0000000007C20000-0x000000000829A000-memory.dmp

    Filesize

    6.5MB

  • memory/3180-45-0x0000000070DD0000-0x0000000070E1C000-memory.dmp

    Filesize

    304KB

  • memory/3180-66-0x00000000075E0000-0x00000000075FA000-memory.dmp

    Filesize

    104KB

  • memory/4556-83-0x0000000070DD0000-0x0000000070E1C000-memory.dmp

    Filesize

    304KB

  • memory/4704-3-0x0000000005880000-0x0000000005912000-memory.dmp

    Filesize

    584KB

  • memory/4704-6-0x0000000005B60000-0x0000000005BFC000-memory.dmp

    Filesize

    624KB

  • memory/4704-2-0x0000000005E30000-0x00000000063D4000-memory.dmp

    Filesize

    5.6MB

  • memory/4704-8-0x0000000074B1E000-0x0000000074B1F000-memory.dmp

    Filesize

    4KB

  • memory/4704-5-0x0000000074B10000-0x00000000752C0000-memory.dmp

    Filesize

    7.7MB

  • memory/4704-7-0x0000000005A30000-0x0000000005A3E000-memory.dmp

    Filesize

    56KB

  • memory/4704-9-0x0000000074B10000-0x00000000752C0000-memory.dmp

    Filesize

    7.7MB

  • memory/4704-10-0x0000000006E70000-0x0000000006F3E000-memory.dmp

    Filesize

    824KB

  • memory/4704-4-0x0000000005940000-0x000000000594A000-memory.dmp

    Filesize

    40KB

  • memory/4704-1-0x0000000000F00000-0x0000000001020000-memory.dmp

    Filesize

    1.1MB

  • memory/4704-0-0x0000000074B1E000-0x0000000074B1F000-memory.dmp

    Filesize

    4KB

  • memory/4704-24-0x0000000074B10000-0x00000000752C0000-memory.dmp

    Filesize

    7.7MB

  • memory/5100-63-0x0000000005870000-0x00000000059CA000-memory.dmp

    Filesize

    1.4MB

  • memory/5100-62-0x00000000056B0000-0x00000000056CA000-memory.dmp

    Filesize

    104KB

  • memory/5100-61-0x0000000000EF0000-0x0000000000F30000-memory.dmp

    Filesize

    256KB