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Analysis

  • max time kernel
    36s
  • max time network
    42s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    05/12/2022, 15:34

General

  • Target

    21b4f5539291f0a82a9815aa816427157ea050c6e343d590e59bc5a1851df186.dll

  • Size

    237KB

  • MD5

    3d801aca03997af3be614461a69b21e0

  • SHA1

    aef9baed56172d6afe45045ff8f546d46ae5d0df

  • SHA256

    21b4f5539291f0a82a9815aa816427157ea050c6e343d590e59bc5a1851df186

  • SHA512

    91133765b856c3e7c3aab8d0d52a8581ed5459ea8ae7a17ab71b0dad23aea4ffbe3dab36e271b46cfb4f825bbf457399416f137baf73e27eab84d94c2faf81ad

  • SSDEEP

    1536:ah3I3Y/OmZWgu8ghI8ANLPc6JTLxvolgBwjhIHOiAwKhgOeS/5/IhnGcG7wkIZ:ah3PDghILPcAvoawjXbwPSx/Iuwk8

Score
10/10

Malware Config

Signatures

  • Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Drops file in System32 directory 4 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\21b4f5539291f0a82a9815aa816427157ea050c6e343d590e59bc5a1851df186.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2000
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\21b4f5539291f0a82a9815aa816427157ea050c6e343d590e59bc5a1851df186.dll,#1
      2⤵
      • Adds autorun key to be loaded by Explorer.exe on startup
      • Loads dropped DLL
      • Drops file in System32 directory
      • Modifies registry class
      • Suspicious use of SetWindowsHookEx
      PID:1968

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • \Windows\SysWOW64\jluhs.dll

    Filesize

    625KB

    MD5

    95e2376b3323f062eb562b8586d0f14a

    SHA1

    453d4c3bf4a489433b593420a37bbffb7749875a

    SHA256

    bd3fa8750123d00aa0967fba44372c46ea002681da9c9b77a4f9261553e26017

    SHA512

    b898603d07a49237e4dfc6872d5caa7616bae1258926f10e66c4d3f0d81cccefac1e844395b65bb1f308fbc022061b52e51f60658d0a546c04b365b3428cc87d

  • \Windows\SysWOW64\vxgte.dll

    Filesize

    1.1MB

    MD5

    9b98d47916ead4f69ef51b56b0c2323c

    SHA1

    290a80b4ded0efc0fd00816f373fcea81a521330

    SHA256

    96e0ae104c9662d0d20fdf59844c2d18334e5847b6c4fc7f8ce4b3b87f39887b

    SHA512

    68b67021f228d8d71df4deb0b6388558b2f935a6aa466a12199cd37ada47ee588ea407b278d190d3a498b0ef3f5f1a2573a469b7ea5561ab2e7055c45565fe94

  • memory/1968-55-0x00000000754E1000-0x00000000754E3000-memory.dmp

    Filesize

    8KB

  • memory/1968-56-0x00000000001F0000-0x0000000000235000-memory.dmp

    Filesize

    276KB

  • memory/1968-58-0x00000000001F0000-0x0000000000235000-memory.dmp

    Filesize

    276KB

  • memory/1968-60-0x00000000001F0000-0x0000000000235000-memory.dmp

    Filesize

    276KB