Analysis

  • max time kernel
    146s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-10-2023 07:30

General

  • Target

    cf4f4161be28828b23c1ba40e19380f2abe155bed3adebba1a095f93eb949fd0.exe

  • Size

    25KB

  • MD5

    03db266f29e494b03849d8a40a61ef32

  • SHA1

    e055c6e631425b2efc6dc8363ffd864c651424da

  • SHA256

    cf4f4161be28828b23c1ba40e19380f2abe155bed3adebba1a095f93eb949fd0

  • SHA512

    4b1c77b13fe67d91c1ed33fcaeedb1f207e6006d6f7934988c0f115566aa1122dc787e7a4cda1a04ba21308678c2c3d8d66d8215775b0b41b5aa6bc10d08ff2d

  • SSDEEP

    384:qc0J+vqBoLotA8oPNIrxKRQSv7QrzVVvOytGxboE9K/mKHrjpjvr:8Q3LotOPNSQVwVVxGKEvKHrVr

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\cf4f4161be28828b23c1ba40e19380f2abe155bed3adebba1a095f93eb949fd0.exe
    "C:\Users\Admin\AppData\Local\Temp\cf4f4161be28828b23c1ba40e19380f2abe155bed3adebba1a095f93eb949fd0.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3140
    • 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:1572

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    26KB

    MD5

    8e634c2dd2a567996fe01c646aa5d4fc

    SHA1

    0184f351b622f9bb02d396e2cf8cbbffa5fdc9fa

    SHA256

    ef3da549956e0596ab5116c644af54bce79b08b13c0b7ffce53a1015eae6fb57

    SHA512

    0895cc1c7c3db4118dd928708a5d6a1be97903126ca23878ac89c622bc9613674dfdd64d5424adff957f06b8a5edc0b8de14ad0ef9973fdd2f57e16687f1a112

  • C:\Users\Admin\AppData\Local\Temp\9W2zZZtRAdkOv66.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