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Analysis

  • max time kernel
    114s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    11/10/2022, 09:13

General

  • Target

    http://subsworker.bid/?endpoint=f-wWo-Ns0Mo:APA91bHuxR6aJbhb01VCPaa1Dr1IrV7NGQoZ3iCuIUK_l-c5XzxcGGUPkd5f6FI9od9xlgrOw58RRRZNkbhKkL5HZXGT378hh5FdIl-oV94EvlZujsMLfqSV2GkZMYwss7PTfIyd6JFG&ver=2.

Score
3/10

Malware Config

Signatures

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies Internet Explorer Phishing Filter 1 TTPs 2 IoCs
  • Modifies Internet Explorer settings 1 TTPs 36 IoCs
  • Modifies registry class 2 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Program Files\Internet Explorer\iexplore.exe
    "C:\Program Files\Internet Explorer\iexplore.exe" http://subsworker.bid/?endpoint=f-wWo-Ns0Mo:APA91bHuxR6aJbhb01VCPaa1Dr1IrV7NGQoZ3iCuIUK_l-c5XzxcGGUPkd5f6FI9od9xlgrOw58RRRZNkbhKkL5HZXGT378hh5FdIl-oV94EvlZujsMLfqSV2GkZMYwss7PTfIyd6JFG&ver=2.
    1⤵
    • Modifies Internet Explorer Phishing Filter
    • Modifies Internet Explorer settings
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1200
    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1200 CREDAT:275457 /prefetch:2
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious use of SetWindowsHookEx
      PID:1464
    • C:\Windows\system32\rundll32.exe
      "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\PXJIW9HP\V2PRK7WX.json
      2⤵
      • Modifies registry class
      PID:992

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

    Filesize

    60KB

    MD5

    d15aaa7c9be910a9898260767e2490e1

    SHA1

    2090c53f8d9fc3fbdbafd3a1e4dc25520eb74388

    SHA256

    f8ebaaf487cba0c81a17c8cd680bdd2dd8e90d2114ecc54844cffc0cc647848e

    SHA512

    7e1c1a683914b961b5cc2fe5e4ae288b60bab43bfaa21ce4972772aa0589615c19f57e672e1d93e50a7ed7b76fbd2f1b421089dcaed277120b93f8e91b18af94

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    a93368dbcae8e28d1f5d2460ab1da700

    SHA1

    cce3fe57c22e6d6d890f2cf1711081b316a48fbd

    SHA256

    1366110d0aff4e3ba794c09613160face9e0f902f0bb6151139f338a51596001

    SHA512

    129970ba71f273364beb3f1381c307f5ac8dd1e871b70022dc3b2e50afe2ca16b561925411a4d55d70cc2701612f24546aee9a4436a44d3777335653355f7098

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\PXJIW9HP\V2PRK7WX.json.0wx1y8s.partial

    Filesize

    1KB

    MD5

    fdc66a7d596c97614c16b8c26192f2d5

    SHA1

    e96a355203a1b40c6568f0aa3f6cefe9b26f2a3f

    SHA256

    82a53cb4524915433bf33b4d0bf8c3d312677fac0dde66ed1e29fed2e230aa5b

    SHA512

    1f993854d82cd903956e5d4f6cd583857fcd514453c0ee4811d35f852b870b09c01e41e12100bdc61375bd223f4ed76ca4f16cf8f37825c6ffab3575f9f63618

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\7BMDCFZP.txt

    Filesize

    608B

    MD5

    7f57c80b0249cc10b5a4c86e3242fb59

    SHA1

    8d0e6cc101df60beedfd80421dfcf095ceb89d4a

    SHA256

    62b70c4111782c7f693bd0e09bede27839dd27341db82f32eece968667773a60

    SHA512

    59584cbd208c5e20e0dd3d5b8614236e65ec8a2c783e62feb81ddc534dd3b47d64081144c34f7a32d7e76105326d17320e0eaebc338ac9a50e43a00c845691d7

  • memory/992-56-0x000007FEFC001000-0x000007FEFC003000-memory.dmp

    Filesize

    8KB