Analysis

  • max time kernel
    142s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    09-11-2024 19:02

General

  • Target

    189ddfb3acd27b09cc86ef8c06d984c5a62882dd5b7dcf903bb33c37c6726be4.exe

  • Size

    158KB

  • MD5

    75dc72ddff388d4c2e6ba9695fa50448

  • SHA1

    dbf6f71a79c56fc3b7bdd9bfe3e3681d30fdda0e

  • SHA256

    189ddfb3acd27b09cc86ef8c06d984c5a62882dd5b7dcf903bb33c37c6726be4

  • SHA512

    bf73916f69c6d76037d2a5b6aefc051a727f6260ba17fd613eb5c868d389b59c84ee2a6e17434c362bc194361bbcfc5b3ec17285c8a357be2b67cb67eeaf3c54

  • SSDEEP

    3072:oZpYg19EeiLLmjempGuCYooEK1JWaCItULG3rt2Wcora4dI:OPjEl6jLiQ1JW+Oy3p/

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\189ddfb3acd27b09cc86ef8c06d984c5a62882dd5b7dcf903bb33c37c6726be4.exe
    "C:\Users\Admin\AppData\Local\Temp\189ddfb3acd27b09cc86ef8c06d984c5a62882dd5b7dcf903bb33c37c6726be4.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2300
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\nhfrh.exe "C:\Users\Admin\AppData\Local\Temp\189ddfb3acd27b09cc86ef8c06d984c5a62882dd5b7dcf903bb33c37c6726be4.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:1484
      • 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:2436
      • C:\Users\Admin\AppData\Local\Temp\nhfrh.exe
        C:\Users\Admin\AppData\Local\Temp\\nhfrh.exe "C:\Users\Admin\AppData\Local\Temp\189ddfb3acd27b09cc86ef8c06d984c5a62882dd5b7dcf903bb33c37c6726be4.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:2744
        • \??\c:\Program Files\npcag\ryfljqrek.exe
          "c:\Program Files\npcag\ryfljqrek.exe" "c:\Program Files\npcag\ryfljqrek.dll",SetHandle C:\Users\Admin\AppData\Local\Temp\nhfrh.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:2948

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \??\c:\Program Files\npcag\ryfljqrek.dll

    Filesize

    128KB

    MD5

    6b0be0174aac9ba44ee98459606fb211

    SHA1

    27eb7e99525c1a88b42e3101636299acb2703d97

    SHA256

    f0494903c9cdbe59d3cfef5660fc66442737f725c4b123d22413e70ee791d891

    SHA512

    0e75e5756f2e08a3ac7a8c2cacd88c71679a5f4e917ef3b32b4a271db703169d43b74147361b3538c3f692bba82d604cc86d88305dadd251144290a3addb75eb

  • \Program Files\npcag\ryfljqrek.exe

    Filesize

    43KB

    MD5

    51138beea3e2c21ec44d0932c71762a8

    SHA1

    8939cf35447b22dd2c6e6f443446acc1bf986d58

    SHA256

    5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

    SHA512

    794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

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

    Filesize

    159KB

    MD5

    26a1772488b5bc23af552a53bd896191

    SHA1

    3694d174ceed0ce5eb160c9fab02c11f194b9dbc

    SHA256

    48369391c0e9eb094334361f6ffb34c5bacb71215fbb9b90340e2d5c847cbffd

    SHA512

    604cfe66d286874022ee0c09dad25aaad98082a6eb07b599781f431f024cd3514435ade017360dd73e88ccd043cd14bed3353d823cf2bf2b45dab5b6dbb2e637

  • memory/1484-4-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/2300-0-0x0000000000400000-0x000000000042F036-memory.dmp

    Filesize

    188KB

  • memory/2300-2-0x0000000000400000-0x000000000042F036-memory.dmp

    Filesize

    188KB

  • memory/2744-15-0x0000000000400000-0x000000000042F036-memory.dmp

    Filesize

    188KB

  • memory/2948-25-0x0000000010000000-0x0000000010048000-memory.dmp

    Filesize

    288KB

  • memory/2948-24-0x0000000010000000-0x0000000010048000-memory.dmp

    Filesize

    288KB

  • memory/2948-23-0x0000000010000000-0x0000000010048000-memory.dmp

    Filesize

    288KB

  • memory/2948-22-0x0000000010000000-0x0000000010048000-memory.dmp

    Filesize

    288KB

  • memory/2948-26-0x0000000010000000-0x0000000010048000-memory.dmp

    Filesize

    288KB

  • memory/2948-31-0x0000000010000000-0x0000000010048000-memory.dmp

    Filesize

    288KB

  • memory/2948-32-0x0000000010000000-0x0000000010048000-memory.dmp

    Filesize

    288KB