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Analysis

  • max time kernel
    120s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    23/09/2023, 14:35

General

  • Target

    e8fd17e6d28f1406f23069fc57dcbccc_JC.exe

  • Size

    289KB

  • MD5

    e8fd17e6d28f1406f23069fc57dcbccc

  • SHA1

    84ed8ef932642a7ac4e14c5aaf574fcefb5fdde1

  • SHA256

    66676967121a4a6c888272333421b82973cb9b8c58d85b56aaa64be3ab2149bc

  • SHA512

    f245c1b7b65b9784ea24aa4c911082821a3acbf8b99ea90117b5b1d8355264e17e619b2017da8ce3c269a6e50bb40bd4c4b84bd7a74b92b84c8d361303447691

  • SSDEEP

    6144:U5wLulwRBdtGFGo6YpO9sxkECzJLaQVbU5:zua7dtGFGn7GxklJLJbU5

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Drops file in System32 directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e8fd17e6d28f1406f23069fc57dcbccc_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\e8fd17e6d28f1406f23069fc57dcbccc_JC.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1688
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\windows\system32\RKVEEQN.exe.bat" "
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1968
      • C:\windows\SysWOW64\RKVEEQN.exe
        C:\windows\system32\RKVEEQN.exe
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        PID:2712

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\RKVEEQN.exe

    Filesize

    289KB

    MD5

    9a66e7cd1c73af404c2083c8e7ffccef

    SHA1

    afa18f043a5725a7eb42f7d55016e020fad9f0df

    SHA256

    7cda0f9ca118a97d32de76061d9671296ff819d9aa535023d28eb9c1d59c0593

    SHA512

    54513fbb50ff30f1a8a16b0ae06527d5ade4983c86f37ea2f8e732573deafcbf2d9b59ad296aa5f0dd4d0167a34e0e1a8ff01fc31f6bcf2ed935ad91a9a76d2e

  • C:\Windows\SysWOW64\RKVEEQN.exe.bat

    Filesize

    78B

    MD5

    688e155a356004741029cb33a983a5aa

    SHA1

    5f53de71e61770e84cc8cb1de514027864be31f6

    SHA256

    4903535b8038257ce952991d397175eb12a35178287d2c4d78ad39988238e820

    SHA512

    aff7056c9e59a631f08068bafe39c685b9d4a0a304fb3f70da8579171bdf0a70670b5fc1655429a2c8f5938a37d66af79abb7fe3916b52ac7e8a065a50643c58

  • C:\windows\SysWOW64\RKVEEQN.exe

    Filesize

    289KB

    MD5

    9a66e7cd1c73af404c2083c8e7ffccef

    SHA1

    afa18f043a5725a7eb42f7d55016e020fad9f0df

    SHA256

    7cda0f9ca118a97d32de76061d9671296ff819d9aa535023d28eb9c1d59c0593

    SHA512

    54513fbb50ff30f1a8a16b0ae06527d5ade4983c86f37ea2f8e732573deafcbf2d9b59ad296aa5f0dd4d0167a34e0e1a8ff01fc31f6bcf2ed935ad91a9a76d2e

  • C:\windows\SysWOW64\RKVEEQN.exe.bat

    Filesize

    78B

    MD5

    688e155a356004741029cb33a983a5aa

    SHA1

    5f53de71e61770e84cc8cb1de514027864be31f6

    SHA256

    4903535b8038257ce952991d397175eb12a35178287d2c4d78ad39988238e820

    SHA512

    aff7056c9e59a631f08068bafe39c685b9d4a0a304fb3f70da8579171bdf0a70670b5fc1655429a2c8f5938a37d66af79abb7fe3916b52ac7e8a065a50643c58

  • \Windows\SysWOW64\RKVEEQN.exe

    Filesize

    289KB

    MD5

    9a66e7cd1c73af404c2083c8e7ffccef

    SHA1

    afa18f043a5725a7eb42f7d55016e020fad9f0df

    SHA256

    7cda0f9ca118a97d32de76061d9671296ff819d9aa535023d28eb9c1d59c0593

    SHA512

    54513fbb50ff30f1a8a16b0ae06527d5ade4983c86f37ea2f8e732573deafcbf2d9b59ad296aa5f0dd4d0167a34e0e1a8ff01fc31f6bcf2ed935ad91a9a76d2e

  • \Windows\SysWOW64\RKVEEQN.exe

    Filesize

    289KB

    MD5

    9a66e7cd1c73af404c2083c8e7ffccef

    SHA1

    afa18f043a5725a7eb42f7d55016e020fad9f0df

    SHA256

    7cda0f9ca118a97d32de76061d9671296ff819d9aa535023d28eb9c1d59c0593

    SHA512

    54513fbb50ff30f1a8a16b0ae06527d5ade4983c86f37ea2f8e732573deafcbf2d9b59ad296aa5f0dd4d0167a34e0e1a8ff01fc31f6bcf2ed935ad91a9a76d2e

  • memory/1688-0-0x0000000000400000-0x000000000043F000-memory.dmp

    Filesize

    252KB

  • memory/1688-12-0x0000000000400000-0x000000000043F000-memory.dmp

    Filesize

    252KB

  • memory/1968-16-0x0000000000400000-0x000000000043F000-memory.dmp

    Filesize

    252KB

  • memory/1968-18-0x0000000000400000-0x000000000043F000-memory.dmp

    Filesize

    252KB

  • memory/1968-20-0x0000000000400000-0x000000000043F000-memory.dmp

    Filesize

    252KB

  • memory/2712-21-0x0000000000400000-0x000000000043F000-memory.dmp

    Filesize

    252KB

  • memory/2712-22-0x0000000000400000-0x000000000043F000-memory.dmp

    Filesize

    252KB