Analysis

  • max time kernel
    118s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    21-03-2024 18:29

General

  • Target

    dc50efff91d40071e26ffb7491605844.exe

  • Size

    279KB

  • MD5

    dc50efff91d40071e26ffb7491605844

  • SHA1

    7f565f4edb087f14852ebfb697daf7a7b3766565

  • SHA256

    a5edeb3512a3d9cad63a6ada9266e2638dc9f5db18801f90e1ccf733515ca685

  • SHA512

    b8901e6cb24d0aa1b08daa7415386015a80c6754a37c961e92e6f4c0c1ef90f391df9734f850254a842aaa9690ae273973c58dcd18849345c60e8ab5c8f4150d

  • SSDEEP

    6144:HfMH+yONBB6VD9WMkZPQpK2Vxls0U3C4lEMjXFjaBJyepCIyscYcOWvDSloXTC:Hf19+WMkNoVxHU3zqMzFSyepXpFWv2SG

Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 1 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 1 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Drops file in System32 directory 2 IoCs
  • Modifies registry class 11 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dc50efff91d40071e26ffb7491605844.exe
    "C:\Users\Admin\AppData\Local\Temp\dc50efff91d40071e26ffb7491605844.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious use of WriteProcessMemory
    PID:2080
    • C:\Windows\SysWOW64\Regsvr32.exe
      Regsvr32.exe /s C:\Windows\system32\hfeoqxsdnfxjl.dll
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      PID:1984

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\SysWOW64\hfeoqxsdnfxjl.dll

    Filesize

    223KB

    MD5

    b11a7476b7aeca348fe33d6242b465da

    SHA1

    e7e72254097a2a9b08fa7d64789ca665bdfa3a96

    SHA256

    9ff6d68518c09f6d454370c50fa4e97143c9824fa370790d3de933429c45c4dc

    SHA512

    32af36f020107b66c05eecd4a203e438183a0eae0772fdbd181adfaa3ef00744d180f6768da2eabc2749fbecc8b84a38de078fd407a7873ca9345fb9ccb10008

  • memory/1984-6-0x00000000001D0000-0x0000000000270000-memory.dmp

    Filesize

    640KB

  • memory/1984-7-0x0000000000170000-0x0000000000172000-memory.dmp

    Filesize

    8KB

  • memory/2080-0-0x0000000000400000-0x0000000000469000-memory.dmp

    Filesize

    420KB

  • memory/2080-1-0x0000000000220000-0x0000000000222000-memory.dmp

    Filesize

    8KB

  • memory/2080-8-0x0000000000400000-0x0000000000469000-memory.dmp

    Filesize

    420KB