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Analysis

  • max time kernel
    140s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230831-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/09/2023, 11:44

General

  • Target

    7b82a97e27261aa72f391dfecf5fb132e69b84b4fc8aa46b855032d1ddb3d9f0.exe

  • Size

    25KB

  • MD5

    3f2114a6f790014ccea3c43271f090be

  • SHA1

    4689845bf5894bc862a91adc9fa1a14d7eccdb8e

  • SHA256

    7b82a97e27261aa72f391dfecf5fb132e69b84b4fc8aa46b855032d1ddb3d9f0

  • SHA512

    1d65a0267e60e31deec617fd2c394e2982a2feffde0d0e0a240733da7a565fdccb5b0c8bc6c77cef505c19859202fda5fddce0c8d7a5d00d987a979edd3c6b21

  • SSDEEP

    384:qc0J+vqBoLotA8oPNIrxKRQSv7QrzVVvOytGxboE9K/mKHrjpjvhK:8Q3LotOPNSQVwVVxGKEvKHrVhK

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7b82a97e27261aa72f391dfecf5fb132e69b84b4fc8aa46b855032d1ddb3d9f0.exe
    "C:\Users\Admin\AppData\Local\Temp\7b82a97e27261aa72f391dfecf5fb132e69b84b4fc8aa46b855032d1ddb3d9f0.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3488
    • C:\Windows\spoolsv.exe
      "C:\Windows\spoolsv.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • NTFS ADS
      • Suspicious use of AdjustPrivilegeToken
      PID:64

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml

    Filesize

    347KB

    MD5

    1f0037b7cab296bea4f15754b662d246

    SHA1

    f0c2319214db28c512ede043a744b5aae908e5f2

    SHA256

    05a8966dd63765d1b93061353c7dc6107daca5342bd5974a4953cb27f059343d

    SHA512

    154f3e6834ad8178d957b13b4dff7c72bb490c8c19860a4b1b85057b210345e1294e0e4aede691c98d53f97567450c0c10068e8109762ec641e40ed0fa2ac611

  • C:\Users\Admin\AppData\Local\Temp\COrzn3QBkoShOT6.exe

    Filesize

    25KB

    MD5

    82071fd2379c64429acf376487fcddff

    SHA1

    2da42c7eaa62ecee65757b441c939f12b52228fb

    SHA256

    272bd07fa6c2678fd96a026237a184fceffa65d319f6844bac582aff90ce25d8

    SHA512

    194bdbdf624ec425a095a44116032687c46b3e2370f3c436e2d5516dcc778824ff57fa69edfacb42e5e76e05894eb0a40acf32dcee3b80ba397f823ec82b6adb

  • C:\Windows\spoolsv.exe

    Filesize

    25KB

    MD5

    82071fd2379c64429acf376487fcddff

    SHA1

    2da42c7eaa62ecee65757b441c939f12b52228fb

    SHA256

    272bd07fa6c2678fd96a026237a184fceffa65d319f6844bac582aff90ce25d8

    SHA512

    194bdbdf624ec425a095a44116032687c46b3e2370f3c436e2d5516dcc778824ff57fa69edfacb42e5e76e05894eb0a40acf32dcee3b80ba397f823ec82b6adb

  • C:\Windows\spoolsv.exe

    Filesize

    25KB

    MD5

    82071fd2379c64429acf376487fcddff

    SHA1

    2da42c7eaa62ecee65757b441c939f12b52228fb

    SHA256

    272bd07fa6c2678fd96a026237a184fceffa65d319f6844bac582aff90ce25d8

    SHA512

    194bdbdf624ec425a095a44116032687c46b3e2370f3c436e2d5516dcc778824ff57fa69edfacb42e5e76e05894eb0a40acf32dcee3b80ba397f823ec82b6adb