Analysis

  • max time kernel
    111s
  • max time network
    100s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-04-2024 04:21

General

  • Target

    39351fae1fa6e6227941ebc2b7a7fc75.exe

  • Size

    311KB

  • MD5

    39351fae1fa6e6227941ebc2b7a7fc75

  • SHA1

    352bd5b4f4373546dfe9576dbd02b158589dbd0a

  • SHA256

    a2fd8a297495243eb602d0cc696445e264ae83b2896f35e1b7cf2232337fd6a9

  • SHA512

    04c17b9e4417a9cc61df2841efbedbb4c9ba9f3c0e165e1d3c75643bb265135a41c83c19278da0d11fa0547af29e1da1162d0904f2cb2cf89a18f7354a6640dc

  • SSDEEP

    3072:R1GwGnDTpebsP2X/Z+UzcZsV7ztLksKuPDthTDuDN2gwnMwWF9YX2kkZ7ODE:Qw4c2s9zasKYaR2gSM1KGJODE

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.76

Attributes
  • url_path

    /8681490a59ad0e34.php

Signatures

  • Stealc

    Stealc is an infostealer written in C++.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\39351fae1fa6e6227941ebc2b7a7fc75.exe
    "C:\Users\Admin\AppData\Local\Temp\39351fae1fa6e6227941ebc2b7a7fc75.exe"
    1⤵
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:4436
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4436 -s 1312
      2⤵
      • Program crash
      PID:4260
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4436 -ip 4436
    1⤵
      PID:1728

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Discovery

    Query Registry

    2
    T1012

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4436-2-0x0000000001B70000-0x0000000001B97000-memory.dmp
      Filesize

      156KB

    • memory/4436-1-0x0000000001D80000-0x0000000001E80000-memory.dmp
      Filesize

      1024KB

    • memory/4436-3-0x0000000000400000-0x0000000001A19000-memory.dmp
      Filesize

      22.1MB

    • memory/4436-4-0x0000000000400000-0x0000000001A19000-memory.dmp
      Filesize

      22.1MB

    • memory/4436-5-0x0000000000400000-0x0000000001A19000-memory.dmp
      Filesize

      22.1MB

    • memory/4436-6-0x0000000001D80000-0x0000000001E80000-memory.dmp
      Filesize

      1024KB

    • memory/4436-9-0x0000000000400000-0x0000000001A19000-memory.dmp
      Filesize

      22.1MB

    • memory/4436-11-0x0000000000400000-0x0000000001A19000-memory.dmp
      Filesize

      22.1MB

    • memory/4436-13-0x0000000000400000-0x0000000001A19000-memory.dmp
      Filesize

      22.1MB