Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    19-09-2023 16:16

General

  • Target

    a1e082c6ac81c7787edc8a751f079c70c7a28b86a6c40bb66f11c066a00bd755_JC.exe

  • Size

    25KB

  • MD5

    86c6c06fd51675e02aabb7495b8b246a

  • SHA1

    8172fadead654638516fbfd7c5d6749b8860c19b

  • SHA256

    a1e082c6ac81c7787edc8a751f079c70c7a28b86a6c40bb66f11c066a00bd755

  • SHA512

    5f6bd33af5b9d43cc9ff082d18aee64c20f160de539fa365650c735300e1d5d132d460c86235e476b3dc2311b412b5a3af05de55f701d183b9f8d25bfcad42bb

  • SSDEEP

    384:L0naGdVvqqnKCgFwWR3mnNFawrXebqnlF2xJ8v+jyOc35+c:idVyiKC2wMmjF6u2xagyOq5+c

Malware Config

Extracted

Family

purecrypter

C2

https://qu.ax/lrae.dat

Signatures

  • PureCrypter

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

  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a1e082c6ac81c7787edc8a751f079c70c7a28b86a6c40bb66f11c066a00bd755_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\a1e082c6ac81c7787edc8a751f079c70c7a28b86a6c40bb66f11c066a00bd755_JC.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1720

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/1720-0-0x0000000000320000-0x000000000032A000-memory.dmp

    Filesize

    40KB

  • memory/1720-1-0x000007FEF5EE0000-0x000007FEF68CC000-memory.dmp

    Filesize

    9.9MB

  • memory/1720-2-0x0000000000370000-0x00000000003F0000-memory.dmp

    Filesize

    512KB

  • memory/1720-3-0x000007FEF5EE0000-0x000007FEF68CC000-memory.dmp

    Filesize

    9.9MB

  • memory/1720-4-0x0000000000370000-0x00000000003F0000-memory.dmp

    Filesize

    512KB