Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250207-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250207-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13/02/2025, 06:01

General

  • Target

    a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe

  • Size

    1.7MB

  • MD5

    68635ad9d12f683071611bfd34c1ec34

  • SHA1

    3d59b3053f9f531197a47a6a936240cb81a700d9

  • SHA256

    a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9

  • SHA512

    811764a687edc700883ae31503bedb299702ee6281ae57bc0885f9fd60f80d0f572f545bb060dcd610f904167665ee2a520dbdd77e4f4fd953250b1fcf48cf96

  • SSDEEP

    24576:GGA0AhSVzjJqVR/xmx0AsQ5r2jOGJTS8KmlI+u+68+05vNR:JAhuzc3DXJTS8KmVzecH

Malware Config

Signatures

  • Detects Trigona ransomware 14 IoCs
  • Trigona

    A ransomware first seen at the beginning of the 2022.

  • Trigona 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
  • Drops startup 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
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Drops desktop.ini file(s) 4 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 8 IoCs

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

  • 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 2 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 26 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 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\a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe
    "C:\Users\Admin\AppData\Local\Temp\a891d24823796a4ffa2fac76d92fec2c7ffae1ac1c3665be0d4f85e13acd33f9.exe"
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    • Drops file in Program Files directory
    PID:2504
  • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
    "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ua /installsource core
    1⤵
    • System Location Discovery: System Language Discovery
    PID:3568
  • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
    "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PGFwcCBhcHBpZD0iezhBNjlEMzQ1LUQ1NjQtNDYzYy1BRkYxLUE2OUQ5RTUzMEY5Nn0iIHZlcnNpb249IjEyMy4wLjYzMTIuMTIzIiBuZXh0dmVyc2lvbj0iIiBsYW5nPSJlbiIgYnJhbmQ9IkdHTFMiIGNsaWVudD0iIiBpbnN0YWxsYWdlPSI1IiBpbnN0YWxsZGF0ZXRpbWU9IjE3Mzg5NDcxNzgiIG9vYmVfaW5zdGFsbF90aW1lPSIxMzM4MzQxOTY4MDM3MTAwMDAiPjxldmVudCBldmVudHR5cGU9IjMxIiBldmVudHJlc3VsdD0iMSIgZXJyb3Jjb2RlPSIwIiBleHRyYWNvZGUxPSIyMTc5ODYyIiBzeXN0ZW1fdXB0aW1lX3RpY2tzPSI0ODc2Mzk4OTk4Ii8-PC9hcHA-PC9yZXF1ZXN0Pg
    1⤵
    • System Location Discovery: System Language Discovery
    • System Network Configuration Discovery: Internet Connection Discovery
    PID:4416
  • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{D3C85C32-4BD9-462B-B264-20529AE1F0B0}\MicrosoftEdge_X64_133.0.3065.59.exe
    "C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{D3C85C32-4BD9-462B-B264-20529AE1F0B0}\MicrosoftEdge_X64_133.0.3065.59.exe" --msedge --verbose-logging --do-not-launch-msedge --system-level --channel=stable
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:9684
    • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{D3C85C32-4BD9-462B-B264-20529AE1F0B0}\EDGEMITMP_FC1C3.tmp\setup.exe
      "C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{D3C85C32-4BD9-462B-B264-20529AE1F0B0}\EDGEMITMP_FC1C3.tmp\setup.exe" --install-archive="C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{D3C85C32-4BD9-462B-B264-20529AE1F0B0}\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:9312
      • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{D3C85C32-4BD9-462B-B264-20529AE1F0B0}\EDGEMITMP_FC1C3.tmp\setup.exe
        "C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{D3C85C32-4BD9-462B-B264-20529AE1F0B0}\EDGEMITMP_FC1C3.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\{D3C85C32-4BD9-462B-B264-20529AE1F0B0}\EDGEMITMP_FC1C3.tmp\setup.exe" --annotation=plat=Win64 --annotation=prod=Edge --annotation=ver=133.0.3065.59 --initial-client-data=0x224,0x228,0x22c,0x200,0x230,0x7ff7637b6a68,0x7ff7637b6a74,0x7ff7637b6a80
        3⤵
        • Executes dropped EXE
        PID:9420
      • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{D3C85C32-4BD9-462B-B264-20529AE1F0B0}\EDGEMITMP_FC1C3.tmp\setup.exe
        "C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{D3C85C32-4BD9-462B-B264-20529AE1F0B0}\EDGEMITMP_FC1C3.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:10180
        • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{D3C85C32-4BD9-462B-B264-20529AE1F0B0}\EDGEMITMP_FC1C3.tmp\setup.exe
          "C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{D3C85C32-4BD9-462B-B264-20529AE1F0B0}\EDGEMITMP_FC1C3.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\{D3C85C32-4BD9-462B-B264-20529AE1F0B0}\EDGEMITMP_FC1C3.tmp\setup.exe" --annotation=plat=Win64 --annotation=prod=Edge --annotation=ver=133.0.3065.59 --initial-client-data=0x224,0x228,0x22c,0x200,0x230,0x7ff7637b6a68,0x7ff7637b6a74,0x7ff7637b6a80
          4⤵
          • Executes dropped EXE
          PID:392
      • 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
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:9924
        • 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,0x200,0x230,0x7ff7bbc36a68,0x7ff7bbc36a74,0x7ff7bbc36a80
          4⤵
          • Executes dropped EXE
          PID:10104
      • 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:10132
        • 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,0x200,0x230,0x7ff7bbc36a68,0x7ff7bbc36a74,0x7ff7bbc36a80
          4⤵
          • Executes dropped EXE
          PID:10076
      • 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:10092
        • 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,0x200,0x230,0x7ff7bbc36a68,0x7ff7bbc36a74,0x7ff7bbc36a80
          4⤵
          • Executes dropped EXE
          PID:4776
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k AppReadiness -p -s AppReadiness
    1⤵
      PID:9532
    • C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_x64__8wekyb3d8bbwe\LocalBridge.exe
      "C:\Program Files\WindowsApps\Microsoft.MicrosoftOfficeHub_18.1903.1152.0_x64__8wekyb3d8bbwe\LocalBridge.exe" /InvokerPRAID: Microsoft.MicrosoftOfficeHub prelaunch
      1⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:10108
    • C:\Windows\system32\wwahost.exe
      "C:\Windows\system32\wwahost.exe" -ServerName:Microsoft.MicrosoftOfficeHub.wwa
      1⤵
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:10124

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\$Recycle.Bin\S-1-5-21-194335498-2604837297-537231065-1000\desktop.ini

      Filesize

      2KB

      MD5

      ed5fd0beb4cd8d6eb7bd3fc40980d396

      SHA1

      998f092e187dd279681540a8f22b647f5ed4fbe9

      SHA256

      3f8a3acdc263dbb42e1d6b4f963c4242d0ae279a884298cf6931e89f1a531ada

      SHA512

      dec764fac8d52d0e49b8fe4128abe8341ae1012982fe4cf950a2f32273e60df81dc7c8ba37df9776492c94ced19601028bae8a80ff057a236573b7b5beeed36a

    • C:\$Recycle.Bin\S-1-5-21-194335498-2604837297-537231065-1000\how_to_decrypt.hta

      Filesize

      12KB

      MD5

      51f7c1cd640a16d6cbdb1236d781cc3b

      SHA1

      508e96620b807a8b1fe0743d7d42dd2df01afe68

      SHA256

      3cb39e19ab241ddadf2cf74f19ba9957fcf7ad8879c4f66479520fcdab5299d9

      SHA512

      ea3bf485e2153cea43a8399eac4bf00b32ae059f24e3c1ff842870c57177712e7283abb15b779a98b5290ad5c6b1bb7115770c9ccd8f56c6a6b003abb1639893

    • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{D3C85C32-4BD9-462B-B264-20529AE1F0B0}\EDGEMITMP_FC1C3.tmp\setup.exe

      Filesize

      6.8MB

      MD5

      1b3e9c59f9c7a134ec630ada1eb76a39

      SHA1

      a7e831d392e99f3d37847dcc561dd2e017065439

      SHA256

      ce78ccfb0c9cdb06ea61116bc57e50690650b6b5cf37c1aebfb30c19458ee4ae

      SHA512

      c0e50410dc92d80ff7bc854907774fc551564e078a8d38ca6421f15cea50282c25efac4f357b52b066c4371f9b8d4900fa8122dd80ab06ecbd851c6e049f7a3e

    • C:\Program Files\MsEdgeCrashpad\settings.dat

      Filesize

      280B

      MD5

      7497fa3507f773ee8e023eca86cb0e62

      SHA1

      83ff619a2bf7fb26f84975f888936fd4c8a17b71

      SHA256

      4f9da6e6c895b55f732f6ef87a0cefb6165fb430ae28dde82500456a53f2c323

      SHA512

      349e2475ba84039b6dd26198b8d2c4563b67b38d731357d0a6c9423353d90584ca4f2a7bcc64b2343a9c66662595f11195e1ce6007c83d940f10da302d6b0efb

    • C:\Program Files\MsEdgeCrashpad\throttle_store.dat

      Filesize

      20B

      MD5

      9e4e94633b73f4a7680240a0ffd6cd2c

      SHA1

      e68e02453ce22736169a56fdb59043d33668368f

      SHA256

      41c91a9c93d76295746a149dce7ebb3b9ee2cb551d84365fff108e59a61cc304

      SHA512

      193011a756b2368956c71a9a3ae8bc9537d99f52218f124b2e64545eeb5227861d372639052b74d0dd956cb33ca72a9107e069f1ef332b9645044849d14af337

    • C:\ProgramData\Microsoft\EdgeUpdate\Log\MicrosoftEdgeUpdate.log

      Filesize

      361KB

      MD5

      ee40751e6b1202826971042987f8492e

      SHA1

      09ba0482e1469788688267e9416d2140b0a28f47

      SHA256

      fefa6dc12f064f60946dfa4781b8cf7b6db8bc8be74ee872ead319feafdc0031

      SHA512

      4f82ef0c905fe059d4fcb7f8fbf6cb33d8b31813094bd87c52fcd923290deda0b359c4e26e0ff7753cc01c8007c5497d2e1cea23010ab438b1d070654daa36e8

    • memory/2504-17302-0x0000000000400000-0x00000000005CF000-memory.dmp

      Filesize

      1.8MB

    • memory/2504-5-0x0000000000400000-0x00000000005CF000-memory.dmp

      Filesize

      1.8MB

    • memory/2504-4575-0x0000000000400000-0x00000000005CF000-memory.dmp

      Filesize

      1.8MB

    • memory/2504-5216-0x0000000000400000-0x00000000005CF000-memory.dmp

      Filesize

      1.8MB

    • memory/2504-9591-0x0000000000400000-0x00000000005CF000-memory.dmp

      Filesize

      1.8MB

    • memory/2504-2860-0x0000000000400000-0x00000000005CF000-memory.dmp

      Filesize

      1.8MB

    • memory/2504-23192-0x0000000000400000-0x00000000005CF000-memory.dmp

      Filesize

      1.8MB

    • memory/2504-24381-0x0000000000400000-0x00000000005CF000-memory.dmp

      Filesize

      1.8MB

    • memory/2504-11-0x0000000000400000-0x00000000005CF000-memory.dmp

      Filesize

      1.8MB

    • memory/2504-4600-0x0000000000400000-0x00000000005CF000-memory.dmp

      Filesize

      1.8MB

    • memory/2504-4-0x0000000000400000-0x00000000005CF000-memory.dmp

      Filesize

      1.8MB

    • memory/2504-24401-0x0000000000400000-0x00000000005CF000-memory.dmp

      Filesize

      1.8MB

    • memory/2504-3-0x0000000000400000-0x00000000005CF000-memory.dmp

      Filesize

      1.8MB

    • memory/2504-24506-0x0000000000400000-0x00000000005CF000-memory.dmp

      Filesize

      1.8MB

    • memory/10108-24507-0x000001B815820000-0x000001B81582E000-memory.dmp

      Filesize

      56KB

    • memory/10108-24508-0x000001B82FD30000-0x000001B82FD3A000-memory.dmp

      Filesize

      40KB

    • memory/10108-24509-0x000001B82FD60000-0x000001B82FD68000-memory.dmp

      Filesize

      32KB

    • memory/10108-24510-0x000001B831000000-0x000001B831249000-memory.dmp

      Filesize

      2.3MB