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Analysis

  • max time kernel
    148s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/04/2024, 19:15

General

  • Target

    20894d7c8fa769521867065dc956ff34.exe

  • Size

    71KB

  • MD5

    20894d7c8fa769521867065dc956ff34

  • SHA1

    4a5623d7f8705c417d51d4ac8a47bf15e9346dcc

  • SHA256

    f5204eb2a2bc913dd2f447207299524e69acae95064c25f1c9f39358df5251ab

  • SHA512

    1fad5d36df2edcd4b7afd83a99371d1107f277c542cfa35222d39be06169c4cfb7bf7cc27904fc18b11634d8ae63375904edc9113df992e387900e02ecd353dc

  • SSDEEP

    1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazTe:ZhpAyazIlyazTe

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
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\20894d7c8fa769521867065dc956ff34.exe
    "C:\Users\Admin\AppData\Local\Temp\20894d7c8fa769521867065dc956ff34.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3004
    • C:\Windows\CTS.exe
      "C:\Windows\CTS.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:3508

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

    394KB

    MD5

    26d0d9746f9555dd18433ecac37ce1d6

    SHA1

    bf17261e17906a9fb8fd8e81dd9e4bdf198722b6

    SHA256

    96f0c543b1d36541167c50fd8be64c7d8954b7558090377737c58b5fe45bbfa2

    SHA512

    414ac25be88496575366831abce3b62e23cada9e0470a1e97712c695ca2a1941e72872354076923a86264cc966878dd387c0c811b5b0e968d8cb332f144b9658

  • C:\Users\Admin\AppData\Local\Temp\9BXwZ4GxPAJ0Gd7.exe

    Filesize

    71KB

    MD5

    067afc8e3d4bdcafbc3407fb1c10587b

    SHA1

    8e9ae0f3d7aba4204a1dc16f16b7480207c35d97

    SHA256

    b4ca1c601110b388bc99820bae3b7940bf1972cbc1332f12993caf3aef6ca94d

    SHA512

    068743e3cf6045f92c8adea33e4547079cb16cd371607706e526ac30b9e7fbde9f68ceeed311a9913078b1fdd226ee372b86ae7507f1d23f47d2a7a84f1aec05

  • C:\Windows\CTS.exe

    Filesize

    71KB

    MD5

    66df4ffab62e674af2e75b163563fc0b

    SHA1

    dec8a197312e41eeb3cfef01cb2a443f0205cd6e

    SHA256

    075a6eecd8da1795532318f9cf880efe42461f9464d63f74deb271d33110f163

    SHA512

    1588dd78e6e8972013c40cdb6acfb84c8df7b081197233ce621904b645356c805d0424bb93dd46c55834dc47d9ff39ee1323cf8e670841b3fff24ab98ba87f25