Analysis

  • max time kernel
    166s
  • max time network
    169s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-04-2023 11:01

General

  • Target

    1012a0693246fceec2ec5ae8265e6ddf9b4881acbc1a452df519f18a9083eddf.exe

  • Size

    8KB

  • MD5

    3f5bb951a818d19752d5a91d68ee8f83

  • SHA1

    efba10de4b96360e0b6621c3110a1fffec0056dd

  • SHA256

    1012a0693246fceec2ec5ae8265e6ddf9b4881acbc1a452df519f18a9083eddf

  • SHA512

    ca2bc4a254111fa9fc86a1db5b6af9cee0d951bcd00f339e77c7e6ba8e86a52cdf452581fd2bfa5645633bd7f9f6b7d390732009a872d808fe2b509c9e58d15b

  • SSDEEP

    96:9kjmjQAZDmqH/PMLBcaRZBdgsLmgskAhD1TIoD6DoKWZlWwuzNt:umjtNMLBFTZ1Go8KWZlW1

Malware Config

Extracted

Family

purecrypter

C2

http://80.66.75.36/p-Nzasgukzcp.dat

Signatures

  • PureCrypter

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

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\1012a0693246fceec2ec5ae8265e6ddf9b4881acbc1a452df519f18a9083eddf.exe
    "C:\Users\Admin\AppData\Local\Temp\1012a0693246fceec2ec5ae8265e6ddf9b4881acbc1a452df519f18a9083eddf.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2856
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2856 -s 1452
      2⤵
      • Program crash
      PID:3904
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2856 -ip 2856
    1⤵
      PID:892

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2856-133-0x0000000000E80000-0x0000000000E88000-memory.dmp
      Filesize

      32KB

    • memory/2856-134-0x0000000003390000-0x00000000033A0000-memory.dmp
      Filesize

      64KB

    • memory/2856-135-0x0000000003390000-0x00000000033A0000-memory.dmp
      Filesize

      64KB