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Analysis

  • max time kernel
    22s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    01/12/2022, 02:45

General

  • Target

    7ef089a28ad062c7514e8a31ba66f345343938df9c789eb2b58c29919833e7b9.dll

  • Size

    236KB

  • MD5

    6c97971f0b4a25ce0b2db72eef6b7cd0

  • SHA1

    90601dde36c25e879abc4a080dd15e4d1c2da2d8

  • SHA256

    7ef089a28ad062c7514e8a31ba66f345343938df9c789eb2b58c29919833e7b9

  • SHA512

    b85db7cfc387343355e69f1f00fc8157ffda448de91dffdeca24643b150f89d7beb10ab02019716c5207f006d0a8938961b6473f1715e1fe9e931be85b6be7d3

  • SSDEEP

    3072:SeqmgHwlaazN9U3J+P0wFp+bLrt2wkkIA:+Qj9U3jwO3rt5f

Score
10/10

Malware Config

Signatures

  • Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 4 IoCs
  • Modifies registry class 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 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\7ef089a28ad062c7514e8a31ba66f345343938df9c789eb2b58c29919833e7b9.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1452
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\7ef089a28ad062c7514e8a31ba66f345343938df9c789eb2b58c29919833e7b9.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 behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1712

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • \Windows\SysWOW64\rjx.dll

    Filesize

    625KB

    MD5

    95e2376b3323f062eb562b8586d0f14a

    SHA1

    453d4c3bf4a489433b593420a37bbffb7749875a

    SHA256

    bd3fa8750123d00aa0967fba44372c46ea002681da9c9b77a4f9261553e26017

    SHA512

    b898603d07a49237e4dfc6872d5caa7616bae1258926f10e66c4d3f0d81cccefac1e844395b65bb1f308fbc022061b52e51f60658d0a546c04b365b3428cc87d

  • memory/1712-55-0x0000000075981000-0x0000000075983000-memory.dmp

    Filesize

    8KB

  • memory/1712-56-0x0000000000690000-0x00000000006D4000-memory.dmp

    Filesize

    272KB

  • memory/1712-58-0x0000000000690000-0x00000000006D4000-memory.dmp

    Filesize

    272KB

  • memory/1712-59-0x0000000000690000-0x00000000006D4000-memory.dmp

    Filesize

    272KB