Analysis

  • max time kernel
    296s
  • max time network
    296s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    18-12-2022 22:18

General

  • Target

    7fe99d1024e3d329972135bc3f1121fa9ecafbee98a4c2cd31e82dc786c78ca6.exe

  • Size

    221KB

  • MD5

    31ffe86465095a5f2f7b8fa6fc059bda

  • SHA1

    b2f00d382fb5733e6c274ab0875b70801abf66dd

  • SHA256

    7fe99d1024e3d329972135bc3f1121fa9ecafbee98a4c2cd31e82dc786c78ca6

  • SHA512

    f807b10579dbdd46cb5a3d19f9af7312a841e55a17bcf9502f8fc7c5f65a7819670609fe5f80464b4898b76786b28eb53d385d3b66cd8ecc9045ffb47f513467

  • SSDEEP

    6144:1ae46TfHHUBca1I017Fixzr6/pAqC55vw:t46TfHnay0pFix3w

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in System32 directory 3 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 64 IoCs
  • Modifies system certificate store 2 TTPs 4 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7fe99d1024e3d329972135bc3f1121fa9ecafbee98a4c2cd31e82dc786c78ca6.exe
    "C:\Users\Admin\AppData\Local\Temp\7fe99d1024e3d329972135bc3f1121fa9ecafbee98a4c2cd31e82dc786c78ca6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1648
    • C:\Users\Admin\AppData\Local\Temp\7fe99d1024e3d329972135bc3f1121fa9ecafbee98a4c2cd31e82dc786c78ca6.exe
      "C:\Users\Admin\AppData\Local\Temp\7fe99d1024e3d329972135bc3f1121fa9ecafbee98a4c2cd31e82dc786c78ca6.exe"
      2⤵
      • Loads dropped DLL
      • Adds Run key to start application
      • Drops file in System32 directory
      • Modifies Internet Explorer settings
      • Modifies system certificate store
      • NTFS ADS
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1520
      • C:\Windows\SysWOW64\sdfn9s8sna\z78s9ftaa.exe
        "C:\Windows\system32\sdfn9s8sna\z78s9ftaa.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:832
        • C:\Windows\SysWOW64\sdfn9s8sna\z78s9ftaa.exe
          "C:\Windows\system32\sdfn9s8sna\z78s9ftaa.exe"
          4⤵
          • Executes dropped EXE
          PID:1756
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 8
        3⤵
        • Modifies Internet Explorer settings
        • Suspicious use of FindShellTrayWindow
        PID:1256
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 8
        3⤵
        • Suspicious use of FindShellTrayWindow
        PID:336
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 8
        3⤵
        • Suspicious use of FindShellTrayWindow
        PID:1336
      • C:\Windows\SysWOW64\rundll32.exe
        "C:\Windows\System32\rundll32.exe" InetCpl.cpl,ClearMyTracksByProcess 8
        3⤵
        • Suspicious use of FindShellTrayWindow
        PID:576

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\sdfn9s8sna\z78s9ftaa.exe

    Filesize

    221KB

    MD5

    31ffe86465095a5f2f7b8fa6fc059bda

    SHA1

    b2f00d382fb5733e6c274ab0875b70801abf66dd

    SHA256

    7fe99d1024e3d329972135bc3f1121fa9ecafbee98a4c2cd31e82dc786c78ca6

    SHA512

    f807b10579dbdd46cb5a3d19f9af7312a841e55a17bcf9502f8fc7c5f65a7819670609fe5f80464b4898b76786b28eb53d385d3b66cd8ecc9045ffb47f513467

  • C:\Windows\SysWOW64\sdfn9s8sna\z78s9ftaa.exe

    Filesize

    221KB

    MD5

    31ffe86465095a5f2f7b8fa6fc059bda

    SHA1

    b2f00d382fb5733e6c274ab0875b70801abf66dd

    SHA256

    7fe99d1024e3d329972135bc3f1121fa9ecafbee98a4c2cd31e82dc786c78ca6

    SHA512

    f807b10579dbdd46cb5a3d19f9af7312a841e55a17bcf9502f8fc7c5f65a7819670609fe5f80464b4898b76786b28eb53d385d3b66cd8ecc9045ffb47f513467

  • C:\Windows\SysWOW64\sdfn9s8sna\z78s9ftaa.exe

    Filesize

    221KB

    MD5

    31ffe86465095a5f2f7b8fa6fc059bda

    SHA1

    b2f00d382fb5733e6c274ab0875b70801abf66dd

    SHA256

    7fe99d1024e3d329972135bc3f1121fa9ecafbee98a4c2cd31e82dc786c78ca6

    SHA512

    f807b10579dbdd46cb5a3d19f9af7312a841e55a17bcf9502f8fc7c5f65a7819670609fe5f80464b4898b76786b28eb53d385d3b66cd8ecc9045ffb47f513467

  • \Windows\SysWOW64\sdfn9s8sna\z78s9ftaa.exe

    Filesize

    221KB

    MD5

    31ffe86465095a5f2f7b8fa6fc059bda

    SHA1

    b2f00d382fb5733e6c274ab0875b70801abf66dd

    SHA256

    7fe99d1024e3d329972135bc3f1121fa9ecafbee98a4c2cd31e82dc786c78ca6

    SHA512

    f807b10579dbdd46cb5a3d19f9af7312a841e55a17bcf9502f8fc7c5f65a7819670609fe5f80464b4898b76786b28eb53d385d3b66cd8ecc9045ffb47f513467

  • memory/336-89-0x00000000709C1000-0x00000000709C3000-memory.dmp

    Filesize

    8KB

  • memory/336-87-0x0000000000000000-mapping.dmp

  • memory/576-95-0x000000006DDF1000-0x000000006DDF3000-memory.dmp

    Filesize

    8KB

  • memory/576-93-0x0000000000000000-mapping.dmp

  • memory/832-71-0x0000000074520000-0x0000000074ACB000-memory.dmp

    Filesize

    5.7MB

  • memory/832-75-0x0000000074520000-0x0000000074ACB000-memory.dmp

    Filesize

    5.7MB

  • memory/832-77-0x00000000002EA000-0x0000000000305000-memory.dmp

    Filesize

    108KB

  • memory/832-67-0x0000000000000000-mapping.dmp

  • memory/1256-84-0x0000000000000000-mapping.dmp

  • memory/1256-86-0x00000000709D1000-0x00000000709D3000-memory.dmp

    Filesize

    8KB

  • memory/1336-90-0x0000000000000000-mapping.dmp

  • memory/1336-92-0x000000006DE41000-0x000000006DE43000-memory.dmp

    Filesize

    8KB

  • memory/1520-63-0x0000000074520000-0x0000000074ACB000-memory.dmp

    Filesize

    5.7MB

  • memory/1520-59-0x0000000000402000-0x000000000042D600-memory.dmp

    Filesize

    173KB

  • memory/1520-65-0x0000000074520000-0x0000000074ACB000-memory.dmp

    Filesize

    5.7MB

  • memory/1520-55-0x0000000000400000-0x0000000000432000-memory.dmp

    Filesize

    200KB

  • memory/1520-56-0x000000000042D49E-mapping.dmp

  • memory/1520-58-0x0000000000402000-0x000000000042D600-memory.dmp

    Filesize

    173KB

  • memory/1520-64-0x0000000000765000-0x0000000000776000-memory.dmp

    Filesize

    68KB

  • memory/1648-54-0x00000000761F1000-0x00000000761F3000-memory.dmp

    Filesize

    8KB

  • memory/1648-61-0x0000000074520000-0x0000000074ACB000-memory.dmp

    Filesize

    5.7MB

  • memory/1648-62-0x000000000063C000-0x0000000000657000-memory.dmp

    Filesize

    108KB

  • memory/1756-73-0x000000000042D49E-mapping.dmp

  • memory/1756-83-0x0000000074520000-0x0000000074ACB000-memory.dmp

    Filesize

    5.7MB

  • memory/1756-82-0x00000000003A5000-0x00000000003B6000-memory.dmp

    Filesize

    68KB

  • memory/1756-81-0x0000000074520000-0x0000000074ACB000-memory.dmp

    Filesize

    5.7MB