Overview

overview

10

Static

static

1

b9181d83be...0c.exe

windows7-x64

10

b9181d83be...0c.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    123s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    16/10/2023, 07:06

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General

  • Target

    b9181d83be377f3e91a6ddb7bbd3762f36d831d5964dd466dd6aaefdc308e00c.exe

  • Size

    252KB

  • MD5

    2688fa5343ca4be807153abc3a232022

  • SHA1

    cc36682adac45d6e1d94210c219dae02ee1348dd

  • SHA256

    b9181d83be377f3e91a6ddb7bbd3762f36d831d5964dd466dd6aaefdc308e00c

  • SHA512

    3f25d204cd2fc2cf5ade4c47ab3a54623030ffa42cfe7225de16e82e68b1c99ea87177cfd4bf1368f1284a1fe0eec94931571ab0c2c8da9f1a3d8129aa1972f7

  • SSDEEP

    6144:7r/uLj6upuyS4EMv8MBOs8rKwVeRwnWojknDUzOgoz:/8Oupuylv8M03z8wWQ0xgY

Score
10/10
cobaltstrike0305419896backdoortrojan

Malware Config

Extracted

Family

cobaltstrike

Botnet

305419896

C2

http://121.135.44.49:808/updates.rss

Attributes
  • access_type

    512

  • host

    121.135.44.49,/updates.rss

  • http_header1

    AAAABwAAAAAAAAADAAAABgAAAAZDb29raWUAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • http_header2

    AAAACgAAACZDb250ZW50LVR5cGU6IGFwcGxpY2F0aW9uL29jdGV0LXN0cmVhbQAAAAcAAAAAAAAABQAAAAJpZAAAAAcAAAABAAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • http_method1

    GET

  • http_method2

    POST

  • maxdns

    255

  • polling_time

    60000

  • port_number

    808

  • sc_process32

    %windir%\syswow64\rundll32.exe

  • sc_process64

    %windir%\sysnative\rundll32.exe

  • state_machine

    MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDgsP+eMnPP7SbQi8FBbcZjBJme2n2qtXX6C6YxAOjANE3mvQVldGPYGSrKWsMzXG72OwEYlb6hZ0r20kmZgIUuyfRAd2IXh+SYAinyJKRhL8E1gfH767dRv+lkenXIb0EBCydgUckSVIOAJmI5xd14sWIogxx4El9ruXkYdtENpQIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • unknown1

    4096

  • unknown2

    AAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • uri

    /submit.php

  • user_agent

    Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0)

  • watermark

    305419896

Extracted

Family

cobaltstrike

Botnet

0

Attributes
  • watermark

    0

Signatures

  • Cobaltstrike

    Detected malicious payload which is part of Cobaltstrike.

    trojanbackdoorcobaltstrike
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b9181d83be377f3e91a6ddb7bbd3762f36d831d5964dd466dd6aaefdc308e00c.exe
    "C:\Users\Admin\AppData\Local\Temp\b9181d83be377f3e91a6ddb7bbd3762f36d831d5964dd466dd6aaefdc308e00c.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1596
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe
      2⤵
        PID:2656

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/2656-0-0x0000000000050000-0x0000000000090000-memory.dmp

            Filesize

            256KB

            Download

          • memory/2656-2-0x00000000002D0000-0x000000000031C000-memory.dmp

            Filesize

            304KB

            Download

          • memory/2656-3-0x00000000002D0000-0x000000000031C000-memory.dmp

            Filesize

            304KB

            Download