Analysis

  • max time kernel
    151s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    27-10-2020 10:58

General

  • Target

    76c8a9dbff9b571500729611595f1a1bce8dab543922d731c3bb42af5477f517.exe

  • Size

    459KB

  • MD5

    165764b4314eea6105dcb41e02a0bea4

  • SHA1

    9e9218fa0b3d51ed02185658a5290200b7ced108

  • SHA256

    76c8a9dbff9b571500729611595f1a1bce8dab543922d731c3bb42af5477f517

  • SHA512

    641477979c2484bd5101e537bea96001bcc93737b0945d26ab4ddc6d748653dce5f09655e0f6dec002c6f16aa2918dcfc77912b5c06323adee47c807de52adc6

Malware Config

Signatures

  • Ursnif RM3

    A heavily modified version of Ursnif discovered in the wild.

  • Modifies Internet Explorer settings 1 TTPs 148 IoCs
  • Suspicious use of FindShellTrayWindow 6 IoCs
  • Suspicious use of SetWindowsHookEx 24 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\76c8a9dbff9b571500729611595f1a1bce8dab543922d731c3bb42af5477f517.exe
    "C:\Users\Admin\AppData\Local\Temp\76c8a9dbff9b571500729611595f1a1bce8dab543922d731c3bb42af5477f517.exe"
    1⤵
      PID:1456
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1300
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1300 CREDAT:275457 /prefetch:2
        2⤵
        • Suspicious use of SetWindowsHookEx
        PID:1484
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1504
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1504 CREDAT:275457 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:1900
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1908
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1908 CREDAT:275457 /prefetch:2
        2⤵
        • Suspicious use of SetWindowsHookEx
        PID:320
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1628
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1628 CREDAT:275457 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:1236
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1712
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1712 CREDAT:275457 /prefetch:2
        2⤵
        • Suspicious use of SetWindowsHookEx
        PID:1728
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1312
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1312 CREDAT:275457 /prefetch:2
        2⤵
        • Suspicious use of SetWindowsHookEx
        PID:524

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Modify Registry

    1
    T1112

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\imagestore\9sinn1d\imagestore.dat
      MD5

      939e7d52deb3eb1d35e6bdad7d8f54f0

      SHA1

      333e4d9b4b00e78d5da5d799decd6f0d8face1ad

      SHA256

      b912515457694b73c9531a2e40cd234ab95b14c757172f42a012d6f8fe089e28

      SHA512

      426cdaeea6bb74ee11ee0028ce37aac498acfa278b50a442329fef69ba970d9a421e13958fa85ba80155af60b9f5ad60160c823c21cef6adfa4da063d15e42bc

    • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\imagestore\9sinn1d\imagestore.dat
      MD5

      939e7d52deb3eb1d35e6bdad7d8f54f0

      SHA1

      333e4d9b4b00e78d5da5d799decd6f0d8face1ad

      SHA256

      b912515457694b73c9531a2e40cd234ab95b14c757172f42a012d6f8fe089e28

      SHA512

      426cdaeea6bb74ee11ee0028ce37aac498acfa278b50a442329fef69ba970d9a421e13958fa85ba80155af60b9f5ad60160c823c21cef6adfa4da063d15e42bc

    • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\imagestore\9sinn1d\imagestore.dat
      MD5

      939e7d52deb3eb1d35e6bdad7d8f54f0

      SHA1

      333e4d9b4b00e78d5da5d799decd6f0d8face1ad

      SHA256

      b912515457694b73c9531a2e40cd234ab95b14c757172f42a012d6f8fe089e28

      SHA512

      426cdaeea6bb74ee11ee0028ce37aac498acfa278b50a442329fef69ba970d9a421e13958fa85ba80155af60b9f5ad60160c823c21cef6adfa4da063d15e42bc

    • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\imagestore\9sinn1d\imagestore.dat
      MD5

      939e7d52deb3eb1d35e6bdad7d8f54f0

      SHA1

      333e4d9b4b00e78d5da5d799decd6f0d8face1ad

      SHA256

      b912515457694b73c9531a2e40cd234ab95b14c757172f42a012d6f8fe089e28

      SHA512

      426cdaeea6bb74ee11ee0028ce37aac498acfa278b50a442329fef69ba970d9a421e13958fa85ba80155af60b9f5ad60160c823c21cef6adfa4da063d15e42bc

    • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\imagestore\9sinn1d\imagestore.dat
      MD5

      939e7d52deb3eb1d35e6bdad7d8f54f0

      SHA1

      333e4d9b4b00e78d5da5d799decd6f0d8face1ad

      SHA256

      b912515457694b73c9531a2e40cd234ab95b14c757172f42a012d6f8fe089e28

      SHA512

      426cdaeea6bb74ee11ee0028ce37aac498acfa278b50a442329fef69ba970d9a421e13958fa85ba80155af60b9f5ad60160c823c21cef6adfa4da063d15e42bc

    • memory/320-8-0x0000000000000000-mapping.dmp
    • memory/524-17-0x0000000000000000-mapping.dmp
    • memory/568-1-0x000007FEF83D0000-0x000007FEF864A000-memory.dmp
      Filesize

      2.5MB

    • memory/1236-11-0x0000000000000000-mapping.dmp
    • memory/1456-0-0x0000000000160000-0x0000000000172000-memory.dmp
      Filesize

      72KB

    • memory/1484-4-0x0000000004F20000-0x0000000004F23000-memory.dmp
      Filesize

      12KB

    • memory/1484-3-0x00000000069A0000-0x00000000069C3000-memory.dmp
      Filesize

      140KB

    • memory/1484-2-0x0000000000000000-mapping.dmp
    • memory/1728-14-0x0000000000000000-mapping.dmp
    • memory/1900-5-0x0000000000000000-mapping.dmp