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Analysis

  • max time kernel
    149s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/10/2022, 10:24

General

  • Target

    hesaphareketi-01,pdf.exe

  • Size

    22KB

  • MD5

    d8748aaaee46da2fc83ef3122863cd41

  • SHA1

    df2a9725d6d3df7d53137300e9e6197ff161ff58

  • SHA256

    5e24b8db8856eba5cb5a2547949d3a3fbfb9c125172de04f8eb598f4ef33b526

  • SHA512

    64810d855583b27fe27f58ae22497df9debbcd3d59ebcd4842fa6734a27a9c93e47f3a72f0a2d5f33ec03cdf5ef15ba992daf7b332f491844a466bb168961925

  • SSDEEP

    192:4b16DLDiNHv+figinxcsz7Fs2WS7M6zvlRJTHhnj4OpqZndlJ4biHPNLm:vDLDiJv+atZz5TBHCZJ5H1L

Malware Config

Extracted

Family

blustealer

C2

https://api.telegram.org/bot5576673774:AAF__hFRh9bcJV72HkFb-9eZR9JNNyuOmFM/sendMessage?chat_id=1194722650

Signatures

  • BluStealer

    A Modular information stealer written in Visual Basic.

  • StormKitty

    StormKitty is an open source info stealer written in C#.

  • StormKitty payload 1 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01,pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01,pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4956
    • C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01,pdf.exe
      C:\Users\Admin\AppData\Local\Temp\hesaphareketi-01,pdf.exe
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:992
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
        C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
        3⤵
        • Accesses Microsoft Outlook profiles
        • Checks processor information in registry
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:1984

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/992-135-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/992-137-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/992-140-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/992-145-0x0000000000400000-0x0000000000422000-memory.dmp

    Filesize

    136KB

  • memory/1984-142-0x0000000000F60000-0x0000000000F7A000-memory.dmp

    Filesize

    104KB

  • memory/1984-143-0x00000000053B0000-0x0000000005416000-memory.dmp

    Filesize

    408KB

  • memory/1984-144-0x0000000005C30000-0x0000000005CCC000-memory.dmp

    Filesize

    624KB

  • memory/4956-132-0x0000000000CF0000-0x0000000000CFC000-memory.dmp

    Filesize

    48KB

  • memory/4956-133-0x00000000065C0000-0x00000000065E2000-memory.dmp

    Filesize

    136KB