Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    01-01-2024 13:38

General

  • Target

    6c109d098a1f44017f3937a71628d9dbd4d2ca8aa266656ee4720c37cc31558e.exe

  • Size

    34KB

  • MD5

    67fd732ee69588cb09b316346bc61ee1

  • SHA1

    f40f54c139277019cf58ef57469af6794bed7e94

  • SHA256

    6c109d098a1f44017f3937a71628d9dbd4d2ca8aa266656ee4720c37cc31558e

  • SHA512

    7ac8e75dad8145c99e5cfa5581d4044bbdb69a86e51102f32625f491ece716484a8e3b4a6d6dfd5d541ebb11eaaa4f19aaeaa6624eaef8ba3defa41c5544863b

  • SSDEEP

    768:tJ1Y2317XpwE3sKfkCbJokUP/W1BqpBo/P6:tJ1N71D6xP/WLq8P6

Malware Config

Extracted

Family

purecrypter

C2

http://80.66.75.116/Kkxdfj.dll

Signatures

  • PureCrypter

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

  • Program crash 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6c109d098a1f44017f3937a71628d9dbd4d2ca8aa266656ee4720c37cc31558e.exe
    "C:\Users\Admin\AppData\Local\Temp\6c109d098a1f44017f3937a71628d9dbd4d2ca8aa266656ee4720c37cc31558e.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2536
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2536 -s 864
      2⤵
      • Program crash
      PID:2988

Network

MITRE ATT&CK Matrix

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2536-0-0x0000000000980000-0x000000000098E000-memory.dmp

    Filesize

    56KB

  • memory/2536-1-0x0000000074270000-0x000000007495E000-memory.dmp

    Filesize

    6.9MB

  • memory/2536-2-0x0000000004460000-0x00000000044A0000-memory.dmp

    Filesize

    256KB

  • memory/2536-3-0x0000000074270000-0x000000007495E000-memory.dmp

    Filesize

    6.9MB

  • memory/2536-4-0x0000000004460000-0x00000000044A0000-memory.dmp

    Filesize

    256KB