Analysis

  • max time kernel
    147s
  • 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
    07-04-2024 23:42

General

  • Target

    993a491d0a6ade56021be52ae5ddcde52daeeb009389e5820e410ba3d173abfa.exe

  • Size

    71KB

  • MD5

    2760418b3432067c2872bf64d585606b

  • SHA1

    23daab32a709c6bae525ba09c8f526934fc71c34

  • SHA256

    993a491d0a6ade56021be52ae5ddcde52daeeb009389e5820e410ba3d173abfa

  • SHA512

    6e76e65b2aac5c6d67135e118950650c73c043990455d2c79790d7178876ba9ea4af55cd5b25aface157d9beb0ae002cf83820e12035c29fdc06bb2b2cafc69d

  • SSDEEP

    1536:Fc897UsWjcd9w+AyabjDbxE+MwmvlDuazTX:ZhpAyazIlyazTX

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\993a491d0a6ade56021be52ae5ddcde52daeeb009389e5820e410ba3d173abfa.exe
    "C:\Users\Admin\AppData\Local\Temp\993a491d0a6ade56021be52ae5ddcde52daeeb009389e5820e410ba3d173abfa.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1700
    • 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:924

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

    9b84af998ab5ac3862855c2065c5ffe3

    SHA1

    01ca00b9bc581cf71a6777f78e2fa1fc3f341fba

    SHA256

    c3fa3299bb103de10b4385a8511129bbccc02c8fa6136947e513896bb8a92ee7

    SHA512

    0e56107110d7a7463f939c6aebb65193555efe7d7e501908dcb735eced54b6a5db0341af30554164dfa0edfc4f54fa0864b45168aedfdb693eb649cd80935a17

  • C:\Users\Admin\AppData\Local\Temp\VdRKjyxo5rhIiaH.exe

    Filesize

    71KB

    MD5

    58ac89b650cc2c2e9d4c7b89be7d1433

    SHA1

    e0153f4d16e5b3db3294079e2bfb5a72f5e11bb0

    SHA256

    c1962d74bd6165daa9b019660e3e10487dd635d2f52035d9f25aebb75f1d045c

    SHA512

    f1ac5724df853326fe74d02fa495dfcc7071b255d5ea242b935a6e38cf82cb0ae1b57efc1117c7115ec068e4cf465fd80e09daaa8ad31787b33be259f66be979

  • C:\Windows\CTS.exe

    Filesize

    71KB

    MD5

    66df4ffab62e674af2e75b163563fc0b

    SHA1

    dec8a197312e41eeb3cfef01cb2a443f0205cd6e

    SHA256

    075a6eecd8da1795532318f9cf880efe42461f9464d63f74deb271d33110f163

    SHA512

    1588dd78e6e8972013c40cdb6acfb84c8df7b081197233ce621904b645356c805d0424bb93dd46c55834dc47d9ff39ee1323cf8e670841b3fff24ab98ba87f25