Analysis

  • user interaction
    yes
  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    27/10/2026, 10:21

General

  • Target
    3qxbrpnyep3tjm91.exe
  • Size 875KB
  • Sample261027-mdm2rstsas
  • SHA256 65934558b1c59cd884a8aedf3eeee7d832db75032912928ae3b3e87af64df415
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • gomorat

Version
  • 1.8

Botnet
  • t.me/junk_code

C2
  • 130.49.213.211:20810

Mutex
  • @junk_code

Attributes
  • antivirtual

    false

  • certificate

    n941fi4c3sb7sm9e143eo1wycgmxmy

  • delay_unit

    Hours

  • delay_value

    420

  • disk_spread

    false

  • enable_delay

    false

  • exclusion_wd

    true

  • hidden_file

    true

  • install

    true

  • install_watchdog

    true

  • key

    yu4cyd07hf

  • path_client

    %ProgramFiles%\junkSearch.exe

  • path_watchdog

    %Windows%\junkSearcher.exe

  • pump

    false

  • rootkit

    yt4rbq35haink2uj

  • rootkit_type

    junkkit

  • task_client

    ShellHost

  • task_watchdog

    CookieManager

  • usb_spread

    true

  • use_install_admin

    true

  • user_init

    true

  • winlogon_shell_enable

    true

  • wmi_name

    WindowsDefender

  • wmi_startup

    true

Signatures

  • Family: GomoRAT

    GomoRAT is a Windows RAT written in C#.

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 2 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Event Triggered Execution: AppInit DLLs 1 TTPs

    Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Credentials from Password Stores: Windows Credential Manager 1 TTPs

    Suspicious access to Credentials History.

  • Deletes itself 1 TTPs 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 12 IoCs
  • Enumerates connected drives 3 TTPs 4 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Looks up external IP address via web service 1 TTPs 6 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Costura .NET executable packer 1 IoCs

    Costura packer aka Costura Fody, is an add-in for the .NET framework that embeds all external dependency .dll files as resources inside main executable.

  • Drops file in Program Files directory 3 IoCs
  • Drops file in Windows directory 64 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • Executes a command shell one-liner 1 TTPs 2 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 8 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • Checks SCSI registry key(s) 3 TTPs 64 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies Internet Explorer settings 1 TTPs 8 IoCs
  • Modifies registry class 64 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: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • Uses Volume Shadow Copy WMI provider

    The Volume Shadow Copy service is used to manage backups/snapshots.

  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\3qxbrpnyep3tjm91.exe
    "C:\Users\Admin\AppData\Local\Temp\3qxbrpnyep3tjm91.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks computer location settings
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Reads the TCP/IP host and domain name from the registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4736
    • C:\Windows\explorer.exe
      "C:\Windows\explorer.exe"
      2⤵
        PID:2436
      • C:\Windows\SYSTEM32\CMD.exe
        "CMD" 471|ZEQxIZGk9Ai+b2COTl7A5b0umA5nVRzkrCWFplvXfhw/w5PjYj9SBuzARfbTAkfcWindowsControl472|M3hmI39Bfv+JtI9hDPzPPVTStWOUHDfr5uKY48wRMWc=C:\Program Files\junkSearch.exe" enable=yes & exit
        2⤵
          PID:2400
        • C:\Windows\SYSTEM32\cmd.exe
          "cmd" /c schtasks /create /f /sc minute /mo 1 /tn "ShellHost" /tr "C:\Program Files\junkSearch.exe" /RL HIGHEST & exit
          2⤵
          • Executes a command shell one-liner
          • Suspicious use of WriteProcessMemory
          PID:4112
          • C:\Windows\system32\schtasks.exe
            schtasks /create /f /sc minute /mo 1 /tn "ShellHost" /tr "C:\Program Files\junkSearch.exe" /RL HIGHEST
            3⤵
            • Scheduled Task/Job: Scheduled Task
            PID:3744
        • C:\Windows\SYSTEM32\cmd.exe
          "cmd" /c schtasks /create /f /sc minute /mo 30 /tn "CookieManager" /tr "C:\Windows\junkSearcher.exe" /RL HIGHEST & exit
          2⤵
          • Executes a command shell one-liner
          • Suspicious use of WriteProcessMemory
          PID:3964
          • C:\Windows\system32\schtasks.exe
            schtasks /create /f /sc minute /mo 30 /tn "CookieManager" /tr "C:\Windows\junkSearcher.exe" /RL HIGHEST
            3⤵
            • Scheduled Task/Job: Scheduled Task
            PID:1408
        • C:\Program Files\junkSearch.exe
          "C:\Program Files\junkSearch.exe"
          2⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Drops file in Program Files directory
          • Reads the TCP/IP host and domain name from the registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:880
          • C:\Windows\explorer.exe
            "C:\Windows\explorer.exe"
            3⤵
            • Loads dropped DLL
            PID:2340
      • C:\Windows\explorer.exe
        explorer.exe
        1⤵
        • Boot or Logon Autostart Execution: Active Setup
        • Enumerates connected drives
        • Checks SCSI registry key(s)
        • Modifies Internet Explorer settings
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of SetWindowsHookEx
        PID:2280
      • C:\Windows\System32\rundll32.exe
        C:\Windows\System32\rundll32.exe shell32.dll,SHCreateLocalServerRunDll {9BA05972-F6A8-11CF-A442-00A0C90A8F39} -Embedding
        1⤵
          PID:4300
        • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
          "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
          1⤵
          • Suspicious use of SetWindowsHookEx
          PID:3976
        • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
          "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
          1⤵
          • Modifies registry class
          • Suspicious use of SetWindowsHookEx
          PID:3332
        • C:\Windows\explorer.exe
          explorer.exe
          1⤵
          • Boot or Logon Autostart Execution: Active Setup
          • Deletes itself
          • Loads dropped DLL
          • Enumerates connected drives
          • Drops file in Windows directory
          • Checks SCSI registry key(s)
          • Modifies Internet Explorer settings
          • Modifies registry class
          • Suspicious behavior: AddClipboardFormatListener
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:4744
        • C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe
          "C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca
          1⤵
          • Suspicious use of SetWindowsHookEx
          PID:948
        • C:\Windows\System32\rundll32.exe
          C:\Windows\System32\rundll32.exe shell32.dll,SHCreateLocalServerRunDll {9BA05972-F6A8-11CF-A442-00A0C90A8F39} -Embedding
          1⤵
          • Loads dropped DLL
          PID:4896
        • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
          "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
          1⤵
          • Modifies registry class
          • Suspicious use of SetWindowsHookEx
          PID:2836
        • C:\Program Files\junkSearch.exe
          "C:\Program Files\junkSearch.exe"
          1⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Reads the TCP/IP host and domain name from the registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:988
        • C:\Program Files\junkSearch.exe
          "C:\Program Files\junkSearch.exe"
          1⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Reads the TCP/IP host and domain name from the registry
          PID:1468

        Network

              MITRE ATT&CK Enterprise v16

              Replay Monitor

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              Downloads

              junkSearch.exe

              • Path C:\Program Files\junkSearch.exe
              • Size 875KB
              • SHA256 65934558b1c59cd884a8aedf3eeee7d832db75032912928ae3b3e87af64df415
              • MD5 SHA1 SHA512 SSDEEP TLSH

              77EC63BDA74BD0D0E0426DC8F8008506

              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\77EC63BDA74BD0D0E0426DC8F8008506
              • Size 78KB
              • SHA256 c0aa761fb7d8d1e4449a899027f1157cf1169624110050ab6b3d316ba61f908c
              • MD5 SHA1 SHA512 SSDEEP TLSH

              B76BE66D46C355931939D8CF818D03FD_68DC46933CF3DE41CC968E0784D43DC3

              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B76BE66D46C355931939D8CF818D03FD_68DC46933CF3DE41CC968E0784D43DC3
              • Size 2KB
              • SHA256 4ff7aa1f7d1b4ca527bbb42cd7d8e9c5b55404b46ff86f4ed378a62961dccfc1
              • MD5 SHA1 SHA512 TLSH

              E2C6CBAF0AF08CF203BA74BF0D0AB6D5_EAF5D55D93603A879FA973006301F24F

              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_EAF5D55D93603A879FA973006301F24F
              • Size 471B
              • SHA256 d74d11c4914effcb6faaceefc35458e3c1e70d82a18d59e6a4c96f08a905ee0b
              • MD5 SHA1 SHA512 TLSH

              77EC63BDA74BD0D0E0426DC8F8008506

              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\77EC63BDA74BD0D0E0426DC8F8008506
              • Size 328B
              • SHA256 03e8e7421f479b074290c92e13842e59b4e4be589e3303d77ac8d79dc1cab3ad
              • MD5 SHA1 SHA512 TLSH

              B76BE66D46C355931939D8CF818D03FD_68DC46933CF3DE41CC968E0784D43DC3

              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B76BE66D46C355931939D8CF818D03FD_68DC46933CF3DE41CC968E0784D43DC3
              • Size 422B
              • SHA256 50faa6f69b7ec96e4cca3cb28487032415411788de9802ac7816034f51adb6ac
              • MD5 SHA1 SHA512 TLSH

              E2C6CBAF0AF08CF203BA74BF0D0AB6D5_EAF5D55D93603A879FA973006301F24F

              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\E2C6CBAF0AF08CF203BA74BF0D0AB6D5_EAF5D55D93603A879FA973006301F24F
              • Size 412B
              • SHA256 068757da75a2e9221f6973fc25cacbb1c75cc2e93374bb3d1a51e4ad1083b281
              • MD5 SHA1 SHA512 TLSH

              junkSearch.exe.log

              • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\junkSearch.exe.log
              • Size 1KB
              • SHA256 77507c05c8131f73d1dd1500992223819a6ab09cd820716e00bf907c9c7fc857
              • MD5 SHA1 SHA512 TLSH

              Windows[6].json

              • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\9ITXMUND\Windows[6].json
              • Size 1KB
              • SHA256 e6bb3df46200082cfef7ca58af5776af2a5b2e274e7372617a1b1f6184c5136e
              • MD5 SHA1 SHA512 TLSH

              microsoft.windows[1].xml

              • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\AC\Microsoft\Internet Explorer\DOMStore\8K3Q3NFN\microsoft.windows[1].xml
              • Size 97B
              • SHA256 774e0f120c9eb0b16ac50e93d255edb2274432ba28173069c38fc483c29184cf
              • MD5 SHA1 SHA512 TLSH

              fbaf94e759052658216786bfbabcdced1b67a5c2.tbres

              • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\AC\TokenBroker\Cache\fbaf94e759052658216786bfbabcdced1b67a5c2.tbres
              • Size 2KB
              • SHA256 0cc524e0f7de40f8dbc5e5f34c99b7f9ac546a8dbc5a4cf20d8e9a2e2fe4b689
              • MD5 SHA1 SHA512 TLSH

              0.0.filtertrie.intermediate.txt

              • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\ConstraintIndex\Apps_{dc678e19-6731-4a55-8dc9-55b79198f27d}\0.0.filtertrie.intermediate.txt
              • Size 30KB
              • SHA256 dbde1c7ce64381d0dd036ad858f25f15b295b61d353a74d294b03f84057455b5
              • MD5 SHA1 SHA512 SSDEEP TLSH

              0.1.filtertrie.intermediate.txt

              • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\ConstraintIndex\Apps_{dc678e19-6731-4a55-8dc9-55b79198f27d}\0.1.filtertrie.intermediate.txt
              • Size 5B
              • SHA256 8e1e6a3d56796a245d0c7b0849548932fee803bbdb03f6e289495830e017f14c
              • MD5 SHA1 SHA512

              0.2.filtertrie.intermediate.txt

              • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\ConstraintIndex\Apps_{dc678e19-6731-4a55-8dc9-55b79198f27d}\0.2.filtertrie.intermediate.txt
              • Size 5B
              • SHA256 d65b6a3bf11a27a1ced1f7e98082246e40cf01289fd47fe4a5ed46c221f2f73f
              • MD5 SHA1 SHA512

              Apps.ft

              • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\ConstraintIndex\Apps_{dc678e19-6731-4a55-8dc9-55b79198f27d}\Apps.ft
              • Size 40KB
              • SHA256 94c8c5fca08e446b66792b6afd1317d23a9fb1934e3bac3b8d8b800a3cb887e2
              • MD5 SHA1 SHA512 SSDEEP TLSH

              Apps.index

              • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\ConstraintIndex\Apps_{dc678e19-6731-4a55-8dc9-55b79198f27d}\Apps.index
              • Size 1.0MB
              • SHA256 7c2e528ef25d64c73ea57ce9c9ea9897adea8add514f1bef2f4730fc3c5395db
              • MD5 SHA1 SHA512 SSDEEP TLSH

              AppCache134375700961138052.txt.~tmp

              • Path C:\Users\Admin\AppData\Local\Packages\Microsoft.Windows.Search_cw5n1h2txyewy\LocalState\DeviceSearchCache\AppCache134375700961138052.txt.~tmp
              • Size 84KB
              • SHA256 06d89be5be35d76ac7d9f6171c8f322673acd1dd6f686d5f282a1ca72f9eb77c
              • MD5 SHA1 SHA512 SSDEEP TLSH

              junk.dll

              • Path C:\Windows\junk.dll
              • Size 58KB
              • SHA256 bd02435863c792fd6247bcc1242b12dca250a7db42cb8aa3e41170880881dadc
              • MD5 SHA1 SHA512 SSDEEP TLSH

              memory/880-386-0x000002BD6BC40000-0x000002BD6BCB8000-memory.dmp

              memory/880-484-0x000002BD6C4F0000-0x000002BD6C53C000-memory.dmp

              memory/880-486-0x000002BD6C570000-0x000002BD6C5BA000-memory.dmp

              memory/880-485-0x000002BD6C540000-0x000002BD6C56A000-memory.dmp

              memory/988-443-0x00007FFD76FB0000-0x00007FFD76FC6000-memory.dmp

              memory/1468-506-0x00007FFD76FB0000-0x00007FFD76FC6000-memory.dmp

              memory/2280-56-0x0000000004F00000-0x0000000004F01000-memory.dmp

              memory/2340-242-0x00007FFD76FB0000-0x00007FFD76FC6000-memory.dmp

              memory/2836-249-0x0000026B170D0000-0x0000026B171D0000-memory.dmp

              memory/2836-254-0x0000026B18440000-0x0000026B18460000-memory.dmp

              memory/2836-256-0x0000026B18400000-0x0000026B18420000-memory.dmp

              memory/2836-257-0x0000026B18800000-0x0000026B18820000-memory.dmp

              memory/3332-58-0x000002BFEF340000-0x000002BFEF440000-memory.dmp

              memory/3332-62-0x000002BFF0160000-0x000002BFF0180000-memory.dmp

              memory/3332-93-0x000002BFF0720000-0x000002BFF0740000-memory.dmp

              memory/3332-78-0x000002BFF0120000-0x000002BFF0140000-memory.dmp

              memory/3332-57-0x000002BFEF340000-0x000002BFEF440000-memory.dmp

              memory/4736-0-0x000001FCD3290000-0x000001FCD336C000-memory.dmp

              memory/4736-38-0x000001FCD4F30000-0x000001FCD4F40000-memory.dmp

              memory/4736-1-0x000001FCD4F30000-0x000001FCD4F40000-memory.dmp

              memory/4744-387-0x00007FFD76FB0000-0x00007FFD76FC6000-memory.dmp

              memory/4744-210-0x0000000002B90000-0x0000000002B91000-memory.dmp

              memory/4744-388-0x0000000010100000-0x0000000010319000-memory.dmp

              memory/4744-218-0x0000000002BD0000-0x0000000002BD1000-memory.dmp

              memory/4744-219-0x0000000002BD0000-0x0000000002BD1000-memory.dmp

              memory/4744-220-0x0000000002BE0000-0x0000000002BE1000-memory.dmp

              memory/4744-221-0x0000000002BE0000-0x0000000002BE1000-memory.dmp

              memory/4744-217-0x0000000002BC0000-0x0000000002BC1000-memory.dmp

              memory/4744-216-0x0000000002BC0000-0x0000000002BC1000-memory.dmp

              memory/4744-215-0x0000000002BB0000-0x0000000002BB1000-memory.dmp

              memory/4744-248-0x0000000002C70000-0x0000000002C71000-memory.dmp

              memory/4744-211-0x0000000002B90000-0x0000000002B91000-memory.dmp

              memory/4744-214-0x0000000002BB0000-0x0000000002BB1000-memory.dmp

              memory/4744-213-0x0000000002BA0000-0x0000000002BA1000-memory.dmp

              memory/4744-212-0x0000000002BA0000-0x0000000002BA1000-memory.dmp

              memory/4896-243-0x00007FFD76FB0000-0x00007FFD76FC6000-memory.dmp