Analysis

  • max time kernel
    69s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 23:46

General

  • Target

    11fa6ab6bf8421364e2f531c25cdf7ecf8266f9a5c19afcb0567e74d851bcbc8.exe

  • Size

    31KB

  • MD5

    5917fd985744f864f7fc02892ced4e60

  • SHA1

    c2077be8cbf1a790bb87db9c4c4f81819c8a5a35

  • SHA256

    11fa6ab6bf8421364e2f531c25cdf7ecf8266f9a5c19afcb0567e74d851bcbc8

  • SHA512

    e45b8cfd315dffd3ba9a185200f423e32e471cb84cf26e460157cae0709478d2028dbc701ebbbe405d5782da583b75c4a14fa329cb9e26eed29a68ea7a2d6828

  • SSDEEP

    384:iPX0UBPAAGNDX+Mk4964fpbB0s6Ahkzq8fWWWDE8vQWapUUpe2p8sG0:ivPoiMkJ4j0Chkr6vUVOsr

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Deletes itself 1 IoCs
  • Drops file in System32 directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies data under HKEY_USERS 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 8 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\11fa6ab6bf8421364e2f531c25cdf7ecf8266f9a5c19afcb0567e74d851bcbc8.exe
    "C:\Users\Admin\AppData\Local\Temp\11fa6ab6bf8421364e2f531c25cdf7ecf8266f9a5c19afcb0567e74d851bcbc8.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1464
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\11FA6A~1.EXE > nul
      2⤵
      • Deletes itself
      PID:1936
  • C:\Windows\SysWOW64\11fa6ab6bf8421364e2f531c25cdf7ecf8266f9a5c19afcb0567e74d851bcbc8.exe
    C:\Windows\SysWOW64\11fa6ab6bf8421364e2f531c25cdf7ecf8266f9a5c19afcb0567e74d851bcbc8.exe
    1⤵
    • Executes dropped EXE
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1752
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe"
      2⤵
      • Drops file in System32 directory
      • Modifies data under HKEY_USERS
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1100
      • C:\Windows\System32\ie4uinit.exe
        "C:\Windows\System32\ie4uinit.exe" -ShowQLIcon
        3⤵
        • Drops file in System32 directory
        • Modifies data under HKEY_USERS
        PID:1180
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1100 CREDAT:275457 /prefetch:2
        3⤵
        • Modifies data under HKEY_USERS
        • Suspicious use of SetWindowsHookEx
        PID:436

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\11fa6ab6bf8421364e2f531c25cdf7ecf8266f9a5c19afcb0567e74d851bcbc8.exe

    Filesize

    31KB

    MD5

    5917fd985744f864f7fc02892ced4e60

    SHA1

    c2077be8cbf1a790bb87db9c4c4f81819c8a5a35

    SHA256

    11fa6ab6bf8421364e2f531c25cdf7ecf8266f9a5c19afcb0567e74d851bcbc8

    SHA512

    e45b8cfd315dffd3ba9a185200f423e32e471cb84cf26e460157cae0709478d2028dbc701ebbbe405d5782da583b75c4a14fa329cb9e26eed29a68ea7a2d6828

  • memory/1180-61-0x0000000000000000-mapping.dmp

  • memory/1464-54-0x00000000758B1000-0x00000000758B3000-memory.dmp

    Filesize

    8KB

  • memory/1464-58-0x0000000000400000-0x000000000040C016-memory.dmp

    Filesize

    48KB

  • memory/1752-59-0x0000000000400000-0x000000000040C016-memory.dmp

    Filesize

    48KB

  • memory/1752-60-0x0000000000400000-0x000000000040C016-memory.dmp

    Filesize

    48KB

  • memory/1936-57-0x0000000000000000-mapping.dmp