Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250211-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250211-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-02-2025 21:33

General

  • Target

    horrxjddub.exe

  • Size

    107KB

  • MD5

    9034080ecb301060a2a69519198c3211

  • SHA1

    6c504419d9f1085aefee87ade0300fdd59e5c66a

  • SHA256

    4b25fa167392d8e4365d2f3c787db1c974ccb8fd13d2ad1099b69db1f62c03f7

  • SHA512

    f69967ec3dd0009f5950397a979a2eb4a52a11c62799d89c33abf05c4dfa8542e9c9b3a43a66a631a235f6728522ba373fd15227097d28cc887705474cd75428

  • SSDEEP

    3072:g+RZk7QEyRiBaIOWQ7sR9bGpxReUbpMD:fRZk7DZ8u9bY

Malware Config

Signatures

  • StormKitty

    StormKitty is an open source info stealer written in C#.

  • StormKitty payload 1 IoCs
  • Stormkitty family
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 7 IoCs

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

  • Downloads MZ/PE file 1 IoCs
  • Event Triggered Execution: Component Object Model Hijacking 1 TTPs

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

  • Executes dropped EXE 10 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Installs/modifies Browser Helper Object 2 TTPs 8 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Looks up external IP address via web service 1 IoCs

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

  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

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

  • Modifies Internet Explorer settings 1 TTPs 24 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs
  • System policy modification 1 TTPs 4 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\horrxjddub.exe
    "C:\Users\Admin\AppData\Local\Temp\horrxjddub.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:5068
  • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
    "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSIxIiBpbnN0YWxsZGF0ZXRpbWU9IjE3MzkyODMzNzEiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4Mzc1NDE5Mjc1MzAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI1MDc5MTExNTYyIi8-PC9hcHA-PC9yZXF1ZXN0Pg
    1⤵
    • System Location Discovery: System Language Discovery
    • System Network Configuration Discovery: Internet Connection Discovery
    PID:2484
  • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{380CD430-4FCA-4285-A18D-12879BA4B3CE}\MicrosoftEdge_X64_133.0.3065.59.exe
    "C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{380CD430-4FCA-4285-A18D-12879BA4B3CE}\MicrosoftEdge_X64_133.0.3065.59.exe" --msedge --verbose-logging --do-not-launch-msedge --system-level --channel=stable
    1⤵
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:1640
    • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{380CD430-4FCA-4285-A18D-12879BA4B3CE}\EDGEMITMP_FED84.tmp\setup.exe
      "C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{380CD430-4FCA-4285-A18D-12879BA4B3CE}\EDGEMITMP_FED84.tmp\setup.exe" --install-archive="C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{380CD430-4FCA-4285-A18D-12879BA4B3CE}\MicrosoftEdge_X64_133.0.3065.59.exe" --msedge --verbose-logging --do-not-launch-msedge --system-level --channel=stable
      2⤵
      • Boot or Logon Autostart Execution: Active Setup
      • Executes dropped EXE
      • Installs/modifies Browser Helper Object
      • Drops file in Program Files directory
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:892
      • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{380CD430-4FCA-4285-A18D-12879BA4B3CE}\EDGEMITMP_FED84.tmp\setup.exe
        "C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{380CD430-4FCA-4285-A18D-12879BA4B3CE}\EDGEMITMP_FED84.tmp\setup.exe" --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Program Files\MsEdgeCrashpad" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=133.0.6943.60 "--annotation=exe=C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{380CD430-4FCA-4285-A18D-12879BA4B3CE}\EDGEMITMP_FED84.tmp\setup.exe" --annotation=plat=Win64 --annotation=prod=Edge --annotation=ver=133.0.3065.59 --initial-client-data=0x224,0x228,0x22c,0x200,0x230,0x7ff7982e6a68,0x7ff7982e6a74,0x7ff7982e6a80
        3⤵
        • Executes dropped EXE
        PID:1736
      • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{380CD430-4FCA-4285-A18D-12879BA4B3CE}\EDGEMITMP_FED84.tmp\setup.exe
        "C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{380CD430-4FCA-4285-A18D-12879BA4B3CE}\EDGEMITMP_FED84.tmp\setup.exe" --msedge --channel=stable --system-level --verbose-logging --create-shortcuts=2 --install-level=1
        3⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Modifies data under HKEY_USERS
        • Suspicious use of WriteProcessMemory
        PID:4720
        • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{380CD430-4FCA-4285-A18D-12879BA4B3CE}\EDGEMITMP_FED84.tmp\setup.exe
          "C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{380CD430-4FCA-4285-A18D-12879BA4B3CE}\EDGEMITMP_FED84.tmp\setup.exe" --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Program Files\MsEdgeCrashpad" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=133.0.6943.60 "--annotation=exe=C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{380CD430-4FCA-4285-A18D-12879BA4B3CE}\EDGEMITMP_FED84.tmp\setup.exe" --annotation=plat=Win64 --annotation=prod=Edge --annotation=ver=133.0.3065.59 --initial-client-data=0x224,0x228,0x22c,0x200,0x230,0x7ff7982e6a68,0x7ff7982e6a74,0x7ff7982e6a80
          4⤵
          • Executes dropped EXE
          • Drops file in Program Files directory
          PID:208
      • C:\Program Files (x86)\Microsoft\Edge\Application\133.0.3065.59\Installer\setup.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\133.0.3065.59\Installer\setup.exe" --msedge --channel=stable --register-package-identity --verbose-logging --system-level
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:4464
        • C:\Program Files (x86)\Microsoft\Edge\Application\133.0.3065.59\Installer\setup.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\133.0.3065.59\Installer\setup.exe" --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Program Files\MsEdgeCrashpad" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=133.0.6943.60 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\133.0.3065.59\Installer\setup.exe" --annotation=plat=Win64 --annotation=prod=Edge --annotation=ver=133.0.3065.59 --initial-client-data=0x224,0x228,0x22c,0x200,0x230,0x7ff7535b6a68,0x7ff7535b6a74,0x7ff7535b6a80
          4⤵
          • Executes dropped EXE
          PID:964
      • C:\Program Files (x86)\Microsoft\Edge\Application\133.0.3065.59\Installer\setup.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\133.0.3065.59\Installer\setup.exe" --msedge --channel=stable --remove-deprecated-packages --verbose-logging --system-level
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:4476
        • C:\Program Files (x86)\Microsoft\Edge\Application\133.0.3065.59\Installer\setup.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\133.0.3065.59\Installer\setup.exe" --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Program Files\MsEdgeCrashpad" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=133.0.6943.60 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\133.0.3065.59\Installer\setup.exe" --annotation=plat=Win64 --annotation=prod=Edge --annotation=ver=133.0.3065.59 --initial-client-data=0x224,0x228,0x22c,0x200,0x230,0x7ff7535b6a68,0x7ff7535b6a74,0x7ff7535b6a80
          4⤵
          • Executes dropped EXE
          PID:3436
      • C:\Program Files (x86)\Microsoft\Edge\Application\133.0.3065.59\Installer\setup.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\133.0.3065.59\Installer\setup.exe" --msedge --channel=stable --update-game-assist-package --verbose-logging --system-level
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:3372
        • C:\Program Files (x86)\Microsoft\Edge\Application\133.0.3065.59\Installer\setup.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\133.0.3065.59\Installer\setup.exe" --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Program Files\MsEdgeCrashpad" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=133.0.6943.60 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\133.0.3065.59\Installer\setup.exe" --annotation=plat=Win64 --annotation=prod=Edge --annotation=ver=133.0.3065.59 --initial-client-data=0x224,0x228,0x22c,0x200,0x230,0x7ff7535b6a68,0x7ff7535b6a74,0x7ff7535b6a80
          4⤵
          • Executes dropped EXE
          PID:2452
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k AppReadiness -p -s AppReadiness
    1⤵
      PID:4660

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{380CD430-4FCA-4285-A18D-12879BA4B3CE}\EDGEMITMP_FED84.tmp\setup.exe

      Filesize

      6.8MB

      MD5

      1b3e9c59f9c7a134ec630ada1eb76a39

      SHA1

      a7e831d392e99f3d37847dcc561dd2e017065439

      SHA256

      ce78ccfb0c9cdb06ea61116bc57e50690650b6b5cf37c1aebfb30c19458ee4ae

      SHA512

      c0e50410dc92d80ff7bc854907774fc551564e078a8d38ca6421f15cea50282c25efac4f357b52b066c4371f9b8d4900fa8122dd80ab06ecbd851c6e049f7a3e

    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

      Filesize

      3.9MB

      MD5

      ad5f7dc7ca3e67dce70c0a89c04519e0

      SHA1

      a10b03234627ca8f3f8034cd5637cda1b8246d83

      SHA256

      663fe0f4e090583e6aa5204b9a80b7a76f677259066e56a7345aebc6bc3e7d31

      SHA512

      ad5490e9865caa454c47ec2e96364b9c566b553e64801da60c295acd570017747be1aff6f22ca6c20c6eee6f6d05a058af72569fd6e656f66e48010978c7fd51

    • C:\Program Files\msedge_installer.log

      Filesize

      72KB

      MD5

      8c7d9045b3b273297bd14739cb88741d

      SHA1

      4e7ed6fd7fb58b65dad1aa0a60e139d7b1445e8f

      SHA256

      b3a2d33d519c291fc99dc2f3932b4a28d391b6a53d243bccc5970ada2bdbd645

      SHA512

      d3f323330495a366e045bcfba0dbce43d487f9b0e3eab44ee4f59e87019493f31d7092b2e08e0c9d399075ac57666bd28fe7ddaf6cd8c5af49a05b7693006a23

    • C:\Program Files\msedge_installer.log

      Filesize

      103KB

      MD5

      7144f63c44483008f559fb554572fada

      SHA1

      b1c93033143d73696da9a6085ff60da333705468

      SHA256

      7b833aa1209d818b700fd3edb87a4f52fab6a208ea04d412372dcbb14a910c1f

      SHA512

      ab30317f18b1a33d5a7fbfd64356bd15749456046b01b1aa81f6295ca57b773638507a16a2e0e96d1860f8d2b260706f85cc3e69f4bd06ecc9bba400e04bb538

    • C:\Program Files\msedge_installer.log

      Filesize

      104KB

      MD5

      781a74ec47375094a60910a4204c747e

      SHA1

      a8cfd16cfb8cb20f9e3dbc4c7e0c103655444713

      SHA256

      50903e9ebd3eaf4d832dd25413bbea70096a4edfbd682d222742e6db793ae8c6

      SHA512

      20c33d3a8da912fb41f4702d3e1672dc2d0dd152d87d7496000f50b26eb70c54805388e42ba346088bdadec53cf5de1340fc5f0242a867c2b0f9bc9630c95891

    • memory/5068-0-0x00007FFD9FD83000-0x00007FFD9FD85000-memory.dmp

      Filesize

      8KB

    • memory/5068-1-0x0000000000B70000-0x0000000000B90000-memory.dmp

      Filesize

      128KB

    • memory/5068-2-0x00007FFD9FD80000-0x00007FFDA0841000-memory.dmp

      Filesize

      10.8MB

    • memory/5068-3-0x00007FFD9FD83000-0x00007FFD9FD85000-memory.dmp

      Filesize

      8KB

    • memory/5068-4-0x00007FFD9FD80000-0x00007FFDA0841000-memory.dmp

      Filesize

      10.8MB