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01/03/2025, 18:58

250301-xmhhrayp15 10

01/03/2025, 18:55

250301-xkqrcaypx7 10

Analysis

  • max time kernel
    90s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/12/2024, 19:31

General

  • Target

    str.dll

  • Size

    536KB

  • MD5

    bfd5e43617896f082948b3fcbc4839f8

  • SHA1

    0304d3a521a791359b16813df513feb891167e5a

  • SHA256

    467ea1ab80fb43e2d59cdf16480ed80d0edd43a3a0baa4748300be7024d2b92e

  • SHA512

    ec7392577b8f67f6e248b81b6d8d1333d7a15c9b7b957862b4b7c39e59e7b2849ad026850b78fd629f31a5e2287702a0a1486335d7f7f3dc356861cdf5056ab1

  • SSDEEP

    12288:0bLgn0PC6NT4OhLPkjXhgECrfobaQsdqO76Qa+OCQkkkkkksk0vk2kkvBrZupk9J:0bNqCTrIzhb0omQsqO7mSuZBk

Malware Config

Extracted

Family

zloader

Botnet

bot5

Campaign

bot5

C2

https://militanttra.at/owg.php

Attributes
  • build_id

    15

rc4.plain
rsa_pubkey.plain

Signatures

  • Zloader family
  • Zloader, Terdot, DELoader, ZeusSphinx

    Zloader is a malware strain that was initially discovered back in August 2015.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\str.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2780
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\str.dll,#1
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2264
      • C:\Windows\SysWOW64\msiexec.exe
        msiexec.exe
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:3596

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2264-0-0x0000000074B72000-0x0000000074B75000-memory.dmp

    Filesize

    12KB

  • memory/2264-2-0x0000000074B10000-0x0000000074B9B000-memory.dmp

    Filesize

    556KB

  • memory/2264-1-0x0000000074B10000-0x0000000074B9B000-memory.dmp

    Filesize

    556KB

  • memory/2264-3-0x0000000074B10000-0x0000000074B9B000-memory.dmp

    Filesize

    556KB

  • memory/2264-4-0x0000000074B72000-0x0000000074B75000-memory.dmp

    Filesize

    12KB

  • memory/2264-9-0x0000000074B10000-0x0000000074B9B000-memory.dmp

    Filesize

    556KB

  • memory/3596-7-0x00000000005A0000-0x00000000005CB000-memory.dmp

    Filesize

    172KB

  • memory/3596-11-0x00000000005A0000-0x00000000005CB000-memory.dmp

    Filesize

    172KB

  • memory/3596-12-0x00000000005A0000-0x00000000005CB000-memory.dmp

    Filesize

    172KB