Analysis

  • max time kernel
    112s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    09-11-2024 23:03

General

  • Target

    5a817991b988109029ca357010a27785d7d3437c24c722bf12b28c8f91663fb1N.exe

  • Size

    158KB

  • MD5

    9f5a394f9c6239d569ac1beed020c9d0

  • SHA1

    6fc5c6d156798c1a4c4d8a5086b1e79eb0734289

  • SHA256

    5a817991b988109029ca357010a27785d7d3437c24c722bf12b28c8f91663fb1

  • SHA512

    391aa0845d31534421073cef761c98354b1381d9463fcdc65874691fd2b58e5c166e3719717a208e1e8d1f063ac656987308d14c8f841622c4e8e9a134c06e26

  • SSDEEP

    3072:oZpYg19EeiLLmjempGuCYooEK1JWaCItULG3rt2Wcora4dIM:OPjEl6jLiQ1JW+Oy3p/9

Malware Config

Signatures

  • ACProtect 1.3x - 1.4x DLL software 1 IoCs

    Detects file using ACProtect software.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 7 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Drops file in Program Files directory 4 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5a817991b988109029ca357010a27785d7d3437c24c722bf12b28c8f91663fb1N.exe
    "C:\Users\Admin\AppData\Local\Temp\5a817991b988109029ca357010a27785d7d3437c24c722bf12b28c8f91663fb1N.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2084
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\qvjru.exe "C:\Users\Admin\AppData\Local\Temp\5a817991b988109029ca357010a27785d7d3437c24c722bf12b28c8f91663fb1N.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:2132
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:2432
      • C:\Users\Admin\AppData\Local\Temp\qvjru.exe
        C:\Users\Admin\AppData\Local\Temp\\qvjru.exe "C:\Users\Admin\AppData\Local\Temp\5a817991b988109029ca357010a27785d7d3437c24c722bf12b28c8f91663fb1N.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Loads dropped DLL
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2584
        • \??\c:\Program Files\rxgbcjlh\tcrcuj.exe
          "c:\Program Files\rxgbcjlh\tcrcuj.exe" "c:\Program Files\rxgbcjlh\tcrcuj.dll",SetHandle C:\Users\Admin\AppData\Local\Temp\qvjru.exe
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Adds Run key to start application
          • Enumerates connected drives
          • Writes to the Master Boot Record (MBR)
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2304

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \??\c:\Program Files\rxgbcjlh\tcrcuj.dll

    Filesize

    128KB

    MD5

    9f2d64a2936f4932418fac30369afc52

    SHA1

    a55e215dd59602c653dcc4b7804060ae781597c6

    SHA256

    acca07ef34919fcdeedcda6e44e6819be083beaa35f91a661d1d7f072f0d45e7

    SHA512

    6cf4a551dd66d30ca1d7cf5390b0578eacaa53fdf8eaf66016d69b2ef3d85e1a97c254955b3b1fc226fc3b992ea5bb7de7764a5a29ab73f749529e6985f4aa60

  • \Program Files\rxgbcjlh\tcrcuj.exe

    Filesize

    43KB

    MD5

    51138beea3e2c21ec44d0932c71762a8

    SHA1

    8939cf35447b22dd2c6e6f443446acc1bf986d58

    SHA256

    5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

    SHA512

    794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

  • \Users\Admin\AppData\Local\Temp\qvjru.exe

    Filesize

    158KB

    MD5

    d35148e80f52181f2d5516ea453a9813

    SHA1

    069c6edef518c5a136abb508a9823fc46567bc5f

    SHA256

    e26a7cf31e08d53c41d6e6f0c34f1ba26297892844368f729ee864c01678396b

    SHA512

    a76bc5b00321d03d28570c195091574a133e454328889d61af110a5c92581611a42a0b0d90632ed48d577206e55d6bd6a4c79135cf839d562935ad9d93a424be

  • memory/2084-2-0x0000000000400000-0x000000000042F036-memory.dmp

    Filesize

    188KB

  • memory/2084-0-0x0000000000400000-0x000000000042F036-memory.dmp

    Filesize

    188KB

  • memory/2132-4-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2304-25-0x0000000010000000-0x0000000010048000-memory.dmp

    Filesize

    288KB

  • memory/2304-19-0x0000000010000000-0x0000000010048000-memory.dmp

    Filesize

    288KB

  • memory/2304-24-0x0000000010000000-0x0000000010048000-memory.dmp

    Filesize

    288KB

  • memory/2304-26-0x0000000010000000-0x0000000010048000-memory.dmp

    Filesize

    288KB

  • memory/2304-31-0x0000000010000000-0x0000000010048000-memory.dmp

    Filesize

    288KB

  • memory/2304-33-0x0000000010000000-0x0000000010048000-memory.dmp

    Filesize

    288KB

  • memory/2584-16-0x0000000000400000-0x000000000042F036-memory.dmp

    Filesize

    188KB

  • memory/2584-8-0x0000000000400000-0x000000000042F036-memory.dmp

    Filesize

    188KB