Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    22-06-2024 07:55

General

  • Target

    Quotation V111K2V.exe

  • Size

    6KB

  • MD5

    ad918477a60ad0ec51338bd30df7bfdf

  • SHA1

    06b780e231275bdcfc9bb9703bd7a70ede44a73c

  • SHA256

    c36f49ce80e9ad92355502e044e74966cdcb1fb64f98da33d23ffc98f80cb067

  • SHA512

    809c26b8c15fdf2c3229509a4874cda472515c4b456272068561e883e1d570eb3066b5762935c5c87d1304dbc4a1f395d2fbdeb2592545105c7696838d61df34

  • SSDEEP

    96:Yp3HyAurB6y0+mtFqZYBRl4gLn40nyEDZDyYzNt:83uu+ewQJn40nyII6

Malware Config

Extracted

Family

purecrypter

C2

https://360.asesoriaenfarmacias.com/Rwnpjrqq.vdf

Signatures

  • PureCrypter

    PureCrypter is a .NET malware loader first seen in early 2021.

  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 32 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Quotation V111K2V.exe
    "C:\Users\Admin\AppData\Local\Temp\Quotation V111K2V.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3036
  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde /n
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:2540
  • C:\Windows\system32\mstsc.exe
    "C:\Windows\system32\mstsc.exe"
    1⤵
    • Enumerates connected drives
    PID:1556
  • C:\Windows\helppane.exe
    C:\Windows\helppane.exe -Embedding
    1⤵
    • Modifies Internet Explorer settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:1492

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2540-5-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2540-6-0x000000006F60D000-0x000000006F618000-memory.dmp

    Filesize

    44KB

  • memory/2540-7-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2540-8-0x000000006F60D000-0x000000006F618000-memory.dmp

    Filesize

    44KB

  • memory/3036-0-0x00000000742AE000-0x00000000742AF000-memory.dmp

    Filesize

    4KB

  • memory/3036-1-0x00000000000F0000-0x00000000000F8000-memory.dmp

    Filesize

    32KB

  • memory/3036-2-0x00000000742A0000-0x000000007498E000-memory.dmp

    Filesize

    6.9MB

  • memory/3036-3-0x00000000742AE000-0x00000000742AF000-memory.dmp

    Filesize

    4KB

  • memory/3036-4-0x00000000742A0000-0x000000007498E000-memory.dmp

    Filesize

    6.9MB