Overview

overview

10

Static

static

3

573e3d2fcd...c8.exe

windows7-x64

10

573e3d2fcd...c8.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    573e3d2fcde58ae09638709e78e394c8

  • Size

    906KB

  • Sample

    240112-xlk79aeda5

  • MD5

    573e3d2fcde58ae09638709e78e394c8

  • SHA1

    ab32f2bd40209a61567111dd6569bcde8501469c

  • SHA256

    b94be764e5eb87917b37e4940d10782e78b8c7b097cd344019e279199b506d13

  • SHA512

    cb321d8a62cbe499827e79b934a207d4fe5c755b9561587fa1aff2252bd1e69bbbe3c79af5117b6ea0ea190aa14d21c15b5247824a08d7526557830adbcb1c41

  • SSDEEP

    12288:mlalun4QO0ONLVUL4TEtZvAcp2QGh64J6JgL3j7CzyAdlAUhCp5f7VqF:QalyO+4TEvASTGPJ6jOzU83

Score
10/10
cobaltstrike0426352781backdoortrojan

Malware Config

Extracted

Family

cobaltstrike

Botnet

426352781

C2

http://5.133.109.104:81/activity

Attributes
  • access_type

    512

  • host

    5.133.109.104,/activity

  • http_header1

    AAAABwAAAAAAAAADAAAABgAAAAZDb29raWUAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=

  • http_header2

    AAAACgAAACZDb250ZW50LVR5cGU6IGFwcGxpY2F0aW9uL29jdGV0LXN0cmVhbQAAAAcAAAAAAAAABQAAAAJpZAAAAAcAAAABAAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=

  • http_method1

    GET

  • http_method2

    POST

  • polling_time

    60000

  • port_number

    81

  • sc_process32

    %windir%\syswow64\rundll32.exe

  • sc_process64

    %windir%\sysnative\rundll32.exe

  • state_machine

    MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCrsjeqVfPwUMvPnbo+bT2xEGxtknCsC2Ujlv+sXxLyCjlJQt0eAuPnIYwS0cknvO0bO/Jh82BaxPVuCw3fkHupUnYhJmr0yCUBQ0NNeeMj9kSltQwhv2Ir+5ru2gLq3dWq9RIafqxY5XqdBErhhOzmAM52RGoCaDQKnSpLPOAIbQIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • unknown1

    4096

  • unknown2

    AAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • uri

    /submit.php

  • user_agent

    Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; GTB7.4; .NET4.0C)

  • watermark

    426352781

Extracted

Family

cobaltstrike

Botnet

0

Attributes
  • watermark

    0

Targets

    • Target

      573e3d2fcde58ae09638709e78e394c8

    • Size

      906KB

    • MD5

      573e3d2fcde58ae09638709e78e394c8

    • SHA1

      ab32f2bd40209a61567111dd6569bcde8501469c

    • SHA256

      b94be764e5eb87917b37e4940d10782e78b8c7b097cd344019e279199b506d13

    • SHA512

      cb321d8a62cbe499827e79b934a207d4fe5c755b9561587fa1aff2252bd1e69bbbe3c79af5117b6ea0ea190aa14d21c15b5247824a08d7526557830adbcb1c41

    • SSDEEP

      12288:mlalun4QO0ONLVUL4TEtZvAcp2QGh64J6JgL3j7CzyAdlAUhCp5f7VqF:QalyO+4TEvASTGPJ6jOzU83

    Score
    10/10
    cobaltstrike0426352781backdoortrojan

    • Cobaltstrike

      Detected malicious payload which is part of Cobaltstrike.

      trojanbackdoorcobaltstrike

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Loads dropped DLL

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks