Resubmissions

16/04/2025, 11:04

250416-m58gsaz1ay 10

15/04/2025, 17:34

250415-v5ylksypw9 10

15/04/2025, 06:16

250415-g1p7ras1dw 10

14/04/2025, 08:06

250414-jzpwpstxhx 10

14/04/2025, 07:59

250414-jvg1assky4 10

14/04/2025, 07:22

250414-h7g1dss1h1 10

14/04/2025, 07:16

250414-h3xv2s1nv6 10

11/04/2025, 21:39

250411-1h113szzaz 10

Analysis

  • max time kernel
    96s
  • max time network
    103s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20250410-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20250410-enlocale:en-usos:windows10-ltsc_2021-x64system
  • submitted
    14/04/2025, 07:59

General

  • Target

    cobaltstrike_shellcode.exe

  • Size

    219KB

  • MD5

    8e4d8b8796d2188324a0cfd6fdc8de92

  • SHA1

    9e7a053d34eb00e732e470bc28cc1fa4aa030b8f

  • SHA256

    1ae532cc0fa2e16cac4f23e289741e256cf517afbbb536aeeb0d7cd601bc05a1

  • SHA512

    db4ced8b71b63a7bd48a5bf96270e99c7380865ec31e875b9e0862535298828f4bbae3a4feeb52ef507a8ba461b744c1ce338e3ed191e90cb7079f209ecdbcf3

  • SSDEEP

    6144:b5E/nRS7UwaWiVDSYOY0iZ4i1GrTxI43ZB:b5lUpDSCFfApP

Malware Config

Extracted

Family

cobaltstrike

Botnet

305419896

C2

http://47.91.237.42:8443/__utm.gif

Attributes
  • access_type

    512

  • beacon_type

    2048

  • host

    47.91.237.42,/__utm.gif

  • http_header1

    AAAABwAAAAAAAAADAAAABgAAAAZDb29raWUAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • http_header2

    AAAACgAAACZDb250ZW50LVR5cGU6IGFwcGxpY2F0aW9uL29jdGV0LXN0cmVhbQAAAAcAAAAAAAAABQAAAAJpZAAAAAcAAAABAAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • http_method1

    GET

  • http_method2

    POST

  • maxdns

    255

  • polling_time

    60000

  • port_number

    8443

  • sc_process32

    %windir%\syswow64\rundll32.exe

  • sc_process64

    %windir%\sysnative\rundll32.exe

  • state_machine

    MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDS7zRQv7EhhTkbgDrCNBsNay7lzQFmcC/GWwjOq93nKwPSszjIKgtW8nwhtoRhr6MFZx4DSYFdeuJDrtJNcTZz2C/LgZzhSQJmhiEqCkVqPPCfK1C6S4PzDrzy9L794rPLOuoewlGAXgiH5/Ae2aC5k2wedRNfes3DJZDDCaJJYwIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • unknown1

    4096

  • unknown2

    AAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • uri

    /submit.php

  • user_agent

    Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; Trident/4.0)

  • watermark

    305419896

Signatures

  • Cobaltstrike

    Detected malicious payload which is part of Cobaltstrike.

  • Cobaltstrike family
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\cobaltstrike_shellcode.exe
    "C:\Users\Admin\AppData\Local\Temp\cobaltstrike_shellcode.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    PID:1300

Network

MITRE ATT&CK Enterprise v16

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1300-0-0x0000000000400000-0x000000000043C4F0-memory.dmp

    Filesize

    241KB

  • memory/1300-1-0x00000000004C0000-0x00000000004FD000-memory.dmp

    Filesize

    244KB

  • memory/1300-2-0x0000000000400000-0x000000000043C4F0-memory.dmp

    Filesize

    241KB

  • memory/1300-3-0x00000000004C0000-0x00000000004FD000-memory.dmp

    Filesize

    244KB