Analysis

  • max time kernel
    150s
  • max time network
    50s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 19:32

General

  • Target

    a543c28ccec484e4eaa0c405fa2ad499a17ecb5cc93afc91d96ecc344aacebd7.exe

  • Size

    208KB

  • MD5

    a214b9398b23f583857e0b2e60c20b10

  • SHA1

    06e52dc62975cbd94fabdfa5a204c614bd2091f6

  • SHA256

    a543c28ccec484e4eaa0c405fa2ad499a17ecb5cc93afc91d96ecc344aacebd7

  • SHA512

    21ef7e5327b9c142699289c7c2875ae766c57514e689083be08aa9eb0689be162984643b793149ea8cb71af9e27d1a35d13eebffd27633e0731ad3b3e13d8526

  • SSDEEP

    1536:Vfuxw10lxJM5y8w5OZRVmgyDl+cWaxJcveQZNTRSb3EBAR1AlQPsxjheYhpXN5yh:f0OtF2Qo7VsJgisxlYegEX0ZZbW

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • UPX packed file 16 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Loads dropped DLL 4 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a543c28ccec484e4eaa0c405fa2ad499a17ecb5cc93afc91d96ecc344aacebd7.exe
    "C:\Users\Admin\AppData\Local\Temp\a543c28ccec484e4eaa0c405fa2ad499a17ecb5cc93afc91d96ecc344aacebd7.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1324
    • C:\Users\Admin\AppData\Local\Temp\a543c28ccec484e4eaa0c405fa2ad499a17ecb5cc93afc91d96ecc344aacebd7.exe
      "C:\Users\Admin\AppData\Local\Temp\a543c28ccec484e4eaa0c405fa2ad499a17ecb5cc93afc91d96ecc344aacebd7.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1108
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\RVHIF.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2020
        • C:\Windows\SysWOW64\reg.exe
          REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "svhust" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\svhust\svhust.exe" /f
          4⤵
          • Adds Run key to start application
          PID:1212
      • C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
        "C:\Users\Admin\AppData\Roaming\svhust\svhust.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1896
        • C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
          "C:\Users\Admin\AppData\Roaming\svhust\svhust.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:588
        • C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
          "C:\Users\Admin\AppData\Roaming\svhust\svhust.exe"
          4⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Drops file in System32 directory
          • Suspicious use of FindShellTrayWindow
          PID:1964

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\RVHIF.bat
    Filesize

    141B

    MD5

    e83a2e0b3c1e03dfb96ffd9924117a45

    SHA1

    27a3e4ba115ba1bad0bf094f5b97e768d1ece33e

    SHA256

    655407d94fff9e707712a588d97a2017cc1c9d690a67c688ed0abcb79e452b13

    SHA512

    5f61686a3b7db3544d83a4f2ce1a75868c7dc266709f72a34eafecc3a26696a985b1912a559aed8f5a2cacbfe26be9beae2374340d1801bb18473de785557480

  • C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
    Filesize

    208KB

    MD5

    50d1b7e24e1063dc34983e75bbcc3a83

    SHA1

    d107982de001cf9024064ae6b2d32ef49735653c

    SHA256

    53181d5985c5fce2dcfa7de49a53d4584cbfc1fb9c6c18b94b5ab1467ea2e0a2

    SHA512

    aad7e4d70f632f02ea180c563491d726c94f22c7ce3b7ba968775db638484631636c1cac22c4570420d27d056b582d392f6482da5cb0b92d307ffea292afe1f1

  • C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
    Filesize

    208KB

    MD5

    50d1b7e24e1063dc34983e75bbcc3a83

    SHA1

    d107982de001cf9024064ae6b2d32ef49735653c

    SHA256

    53181d5985c5fce2dcfa7de49a53d4584cbfc1fb9c6c18b94b5ab1467ea2e0a2

    SHA512

    aad7e4d70f632f02ea180c563491d726c94f22c7ce3b7ba968775db638484631636c1cac22c4570420d27d056b582d392f6482da5cb0b92d307ffea292afe1f1

  • C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
    Filesize

    208KB

    MD5

    50d1b7e24e1063dc34983e75bbcc3a83

    SHA1

    d107982de001cf9024064ae6b2d32ef49735653c

    SHA256

    53181d5985c5fce2dcfa7de49a53d4584cbfc1fb9c6c18b94b5ab1467ea2e0a2

    SHA512

    aad7e4d70f632f02ea180c563491d726c94f22c7ce3b7ba968775db638484631636c1cac22c4570420d27d056b582d392f6482da5cb0b92d307ffea292afe1f1

  • C:\Users\Admin\AppData\Roaming\svhust\svhust.exe
    Filesize

    208KB

    MD5

    50d1b7e24e1063dc34983e75bbcc3a83

    SHA1

    d107982de001cf9024064ae6b2d32ef49735653c

    SHA256

    53181d5985c5fce2dcfa7de49a53d4584cbfc1fb9c6c18b94b5ab1467ea2e0a2

    SHA512

    aad7e4d70f632f02ea180c563491d726c94f22c7ce3b7ba968775db638484631636c1cac22c4570420d27d056b582d392f6482da5cb0b92d307ffea292afe1f1

  • \Users\Admin\AppData\Roaming\svhust\svhust.exe
    Filesize

    208KB

    MD5

    50d1b7e24e1063dc34983e75bbcc3a83

    SHA1

    d107982de001cf9024064ae6b2d32ef49735653c

    SHA256

    53181d5985c5fce2dcfa7de49a53d4584cbfc1fb9c6c18b94b5ab1467ea2e0a2

    SHA512

    aad7e4d70f632f02ea180c563491d726c94f22c7ce3b7ba968775db638484631636c1cac22c4570420d27d056b582d392f6482da5cb0b92d307ffea292afe1f1

  • \Users\Admin\AppData\Roaming\svhust\svhust.exe
    Filesize

    208KB

    MD5

    50d1b7e24e1063dc34983e75bbcc3a83

    SHA1

    d107982de001cf9024064ae6b2d32ef49735653c

    SHA256

    53181d5985c5fce2dcfa7de49a53d4584cbfc1fb9c6c18b94b5ab1467ea2e0a2

    SHA512

    aad7e4d70f632f02ea180c563491d726c94f22c7ce3b7ba968775db638484631636c1cac22c4570420d27d056b582d392f6482da5cb0b92d307ffea292afe1f1

  • \Users\Admin\AppData\Roaming\svhust\svhust.exe
    Filesize

    208KB

    MD5

    50d1b7e24e1063dc34983e75bbcc3a83

    SHA1

    d107982de001cf9024064ae6b2d32ef49735653c

    SHA256

    53181d5985c5fce2dcfa7de49a53d4584cbfc1fb9c6c18b94b5ab1467ea2e0a2

    SHA512

    aad7e4d70f632f02ea180c563491d726c94f22c7ce3b7ba968775db638484631636c1cac22c4570420d27d056b582d392f6482da5cb0b92d307ffea292afe1f1

  • \Users\Admin\AppData\Roaming\svhust\svhust.exe
    Filesize

    208KB

    MD5

    50d1b7e24e1063dc34983e75bbcc3a83

    SHA1

    d107982de001cf9024064ae6b2d32ef49735653c

    SHA256

    53181d5985c5fce2dcfa7de49a53d4584cbfc1fb9c6c18b94b5ab1467ea2e0a2

    SHA512

    aad7e4d70f632f02ea180c563491d726c94f22c7ce3b7ba968775db638484631636c1cac22c4570420d27d056b582d392f6482da5cb0b92d307ffea292afe1f1

  • memory/588-90-0x00000000004085D0-mapping.dmp
  • memory/588-109-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/588-113-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1108-108-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1108-69-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1108-58-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1108-66-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1108-65-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1108-62-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1108-63-0x00000000004085D0-mapping.dmp
  • memory/1108-61-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1108-59-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/1108-70-0x0000000075AC1000-0x0000000075AC3000-memory.dmp
    Filesize

    8KB

  • memory/1212-73-0x0000000000000000-mapping.dmp
  • memory/1324-56-0x000000000051D000-0x0000000000533000-memory.dmp
    Filesize

    88KB

  • memory/1896-78-0x0000000000000000-mapping.dmp
  • memory/1896-82-0x000000000030D000-0x0000000000322000-memory.dmp
    Filesize

    84KB

  • memory/1964-99-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/1964-100-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/1964-101-0x0000000000476940-mapping.dmp
  • memory/1964-95-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/1964-105-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/1964-107-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/1964-93-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/1964-110-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/1964-111-0x0000000074B51000-0x0000000074B53000-memory.dmp
    Filesize

    8KB

  • memory/1964-114-0x0000000000400000-0x0000000000479000-memory.dmp
    Filesize

    484KB

  • memory/2020-71-0x0000000000000000-mapping.dmp