Resubmissions

13/02/2025, 14:36

250213-ryptbazlcy10

13/02/2025, 12:03

250213-n75dksyjat10

Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20250211-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20250211-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    13/02/2025, 14:36

General

  • Target
    b94ecfae3b5514ba1dc5c10faf595527159a535b5c326b39cb42185e6ef6d477.exe
  • Size 10.9MB
  • Sample250213-ryptbazlcy
  • SHA256 b94ecfae3b5514ba1dc5c10faf595527159a535b5c326b39cb42185e6ef6d477
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Detects HijackLoader (aka IDAT Loader) 1 IoCs
  • HijackLoader

    HijackLoader is a multistage loader first seen in 2023.

  • Hijackloader family
  • Downloads MZ/PE file 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 8 IoCs
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

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

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 7 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.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b94ecfae3b5514ba1dc5c10faf595527159a535b5c326b39cb42185e6ef6d477.exe
    "C:\Users\Admin\AppData\Local\Temp\b94ecfae3b5514ba1dc5c10faf595527159a535b5c326b39cb42185e6ef6d477.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4528
    • C:\Users\Admin\AppData\Local\Temp\{C08271C0-AED1-4452-8055-98CE9A56AF79}\_is9A5B.exe
      "C:\Users\Admin\AppData\Local\Temp\{C08271C0-AED1-4452-8055-98CE9A56AF79}\_is9A5B.exe" -IS_temp ORIGINALSETUPEXEDIR="C:\Users\Admin\AppData\Local\Temp" ORIGINALSETUPEXENAME="b94ecfae3b5514ba1dc5c10faf595527159a535b5c326b39cb42185e6ef6d477.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:732
      • C:\Users\Admin\AppData\Local\Temp\{4488B655-B2F1-4D44-9927-8A7E95E69BEA}\Coba\vmtoolsd.exe
        "C:\Users\Admin\AppData\Local\Temp\{4488B655-B2F1-4D44-9927-8A7E95E69BEA}\Coba\vmtoolsd.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:4476
        • C:\Windows\SysWOW64\netsh.exe
          C:\Windows\SysWOW64\netsh.exe
          4⤵
          • Drops startup file
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of WriteProcessMemory
          PID:1444
          • C:\Windows\SysWOW64\explorer.exe
            C:\Windows\SysWOW64\explorer.exe
            5⤵
            • System Location Discovery: System Language Discovery
            PID:3688
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c del "C:\Users\Admin\AppData\Local\Temp\{C08271C0-AED1-4452-8055-98CE9A56AF79}\_is9A5B.exe"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:3772
  • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
    "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiPz48cmVxdWVzdCBwcm90b2NvbD0iMy4wIiB1cGRhdGVyPSJPbWFoYSIgdXBkYXRlcnZlcnNpb249IjEuMy4xOTUuNDMiIHNoZWxsX3ZlcnNpb249IjEuMy4xOTUuNDMiIGlzbWFjaGluZT0iMSIgc2Vzc2lvbmlkPSJ7Nzc1Nzc2QzMtMDA4Qy00RUU2LThCNUEtQkRDMUVERERFNUMxfSIgdXNlcmlkPSJ7OEY4NzQwNUEtNkM1Ni00OUIyLUFBQTUtNjk2QjI0Njk2REI1fSIgaW5zdGFsbHNvdXJjZT0ibGltaXRlZCIgcmVxdWVzdGlkPSJ7ODRBRUJGMDYtQzM4Ny00MDVFLTg4OUMtODcwOTgxNTBDMUY1fSIgZGVkdXA9ImNyIiBkb21haW5qb2luZWQ9IjAiPjxodyBsb2dpY2FsX2NwdXM9IjIiIHBoeXNtZW1vcnk9IjQiIGRpc2tfdHlwZT0iMiIgc3NlPSIxIiBzc2UyPSIxIiBzc2UzPSIxIiBzc3NlMz0iMSIgc3NlNDE9IjEiIHNzZTQyPSIxIiBhdng9IjEiLz48b3MgcGxhdGZvcm09IndpbiIgdmVyc2lvbj0iMTAuMC4xOTA0NC40NTI5IiBzcD0iIiBhcmNoPSJ4NjQiIHByb2R1Y3RfdHlwZT0iMTI1IiBpc193aXA9IjAiIGlzX2luX2xvY2tkb3duX21vZGU9IjAiLz48b2VtIHByb2R1Y3RfbWFudWZhY3R1cmVyPSIiIHByb2R1Y3RfbmFtZT0iIi8-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
    1⤵
    • System Location Discovery: System Language Discovery
    • System Network Configuration Discovery: Internet Connection Discovery
    PID:3948

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        248447ab

        • Path C:\Users\Admin\AppData\Local\Temp\248447ab
        • Size 900KB
        • SHA256 b570a97d75b191e6297791b587691f6940a8b3d94b5c6357a516ea3281079105
        • MD5 SHA1 SHA512 SSDEEP

        crinoid.jpeg

        • Path C:\Users\Admin\AppData\Local\Temp\{4488B655-B2F1-4D44-9927-8A7E95E69BEA}\Coba\crinoid.jpeg
        • Size 723KB
        • SHA256 58eb477af0311544b8939d99f22dce69edcf3ad918274102c093966f1b4612f4
        • MD5 SHA1 SHA512 SSDEEP

        glib-2.0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\{4488B655-B2F1-4D44-9927-8A7E95E69BEA}\Coba\glib-2.0.dll
        • Size 1.0MB
        • SHA256 030983470da06708cc55fd6aca92df199a051922b580db5db55c8cb6b203b51b
        • MD5 SHA1 SHA512 SSDEEP

        gmodule-2.0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\{4488B655-B2F1-4D44-9927-8A7E95E69BEA}\Coba\gmodule-2.0.dll
        • Size 24KB
        • SHA256 2d6bc34b38bc0abf0c5e2f40e2513b4df47af57848534e011a76d4e974ad958b
        • MD5 SHA1 SHA512 SSDEEP

        gobject-2.0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\{4488B655-B2F1-4D44-9927-8A7E95E69BEA}\Coba\gobject-2.0.dll
        • Size 281KB
        • SHA256 78dd76027e10c17824978db821777fcaa58d7cd5d5eb9d80d6ee817e26b18ab8
        • MD5 SHA1 SHA512 SSDEEP

        gthread-2.0.dll

        • Path C:\Users\Admin\AppData\Local\Temp\{4488B655-B2F1-4D44-9927-8A7E95E69BEA}\Coba\gthread-2.0.dll
        • Size 31KB
        • SHA256 dbaad965702b89c371462e735dd925c694eda8d8557b280f7264bba992c0e698
        • MD5 SHA1 SHA512 SSDEEP

        iconv.dll

        • Path C:\Users\Admin\AppData\Local\Temp\{4488B655-B2F1-4D44-9927-8A7E95E69BEA}\Coba\iconv.dll
        • Size 1.1MB
        • SHA256 84538f1aacebf9daad9fdb856611ab3d98a6d71c9ec79a8250eee694d2652a8b
        • MD5 SHA1 SHA512 SSDEEP

        intl.dll

        • Path C:\Users\Admin\AppData\Local\Temp\{4488B655-B2F1-4D44-9927-8A7E95E69BEA}\Coba\intl.dll
        • Size 87KB
        • SHA256 c0a46dd783b5bfdb8752a96626a117a0af21229c686c9a79a9aea71031d4e92e
        • MD5 SHA1 SHA512 SSDEEP

        vmtools.dll

        • Path C:\Users\Admin\AppData\Local\Temp\{4488B655-B2F1-4D44-9927-8A7E95E69BEA}\Coba\vmtools.dll
        • Size 617KB
        • SHA256 4e5f2c54d9ecfe48999edfcce0de038948f8b20ff68e299c55d9a2d6f65713e8
        • MD5 SHA1 SHA512 SSDEEP

        vmtoolsd.exe

        • Path C:\Users\Admin\AppData\Local\Temp\{4488B655-B2F1-4D44-9927-8A7E95E69BEA}\Coba\vmtoolsd.exe
        • Size 63KB
        • SHA256 bf933ccf86c55fc328e343b55dbf2e8ebd528e8a0a54f8f659cd0d4b4f261f26
        • MD5 SHA1 SHA512 SSDEEP

        ISLogoSmall.png

        • Path C:\Users\Admin\AppData\Local\Temp\{4488B655-B2F1-4D44-9927-8A7E95E69BEA}\ISLogoSmall.png
        • Size 1KB
        • SHA256 3039e1e23afc42bd3c07a8f4b65fb5d0377ca70f9f4ffb6fd7e7f33d82d837d1
        • MD5 SHA1 SHA512

        Setup_UI.dll

        • Path C:\Users\Admin\AppData\Local\Temp\{4488B655-B2F1-4D44-9927-8A7E95E69BEA}\Setup_UI.dll
        • Size 911KB
        • SHA256 05652b16afce690e686495a22a3cb483d9c1055891e2af89e60f309b752e2398
        • MD5 SHA1 SHA512 SSDEEP

        SuiteSetup.ini

        • Path C:\Users\Admin\AppData\Local\Temp\{C08271C0-AED1-4452-8055-98CE9A56AF79}\SuiteSetup.ini
        • Size 127B
        • SHA256 c32b270d5d13fd5ea5616834517bc1591c4a5f8a392bed3dc7d70f3fbf79b75f
        • MD5 SHA1 SHA512

        _is9A5B.exe

        • Path C:\Users\Admin\AppData\Local\Temp\{C08271C0-AED1-4452-8055-98CE9A56AF79}\_is9A5B.exe
        • Size 10.9MB
        • SHA256 b94ecfae3b5514ba1dc5c10faf595527159a535b5c326b39cb42185e6ef6d477
        • MD5 SHA1 SHA512 SSDEEP

        memory/1444-129-0x0000000072A91000-0x0000000072A9E000-memory.dmp

        memory/1444-287-0x00007FFC45490000-0x00007FFC45688000-memory.dmp

        memory/1444-294-0x0000000072A91000-0x0000000072A9E000-memory.dmp

        memory/3688-295-0x00007FFC45490000-0x00007FFC45688000-memory.dmp

        memory/3688-296-0x00000000002E0000-0x0000000000336000-memory.dmp

        memory/4476-125-0x0000000072A96000-0x0000000072A98000-memory.dmp

        memory/4476-127-0x0000000072A90000-0x0000000072C0B000-memory.dmp

        memory/4476-126-0x0000000072A90000-0x0000000072C0B000-memory.dmp

        memory/4476-124-0x0000000072A90000-0x0000000072C0B000-memory.dmp