Overview

overview

10

Static

static

3

8a881d784c...eb.exe

windows7-x64

10

8a881d784c...eb.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    8a881d784c1144a9c144288ff98fd84db0165fbddffbda16da983eaad13ac2eb

  • Size

    363KB

  • Sample

    231203-t2j4cadc6y

  • MD5

    844cabf7df93b2dcc4578f6fec951dd9

  • SHA1

    8be2362bafc4ebc6f5643a4b591b1b9e6ce7a2ed

  • SHA256

    8a881d784c1144a9c144288ff98fd84db0165fbddffbda16da983eaad13ac2eb

  • SHA512

    715b1f3e47c3afe44b22dd9ee9ee7c2b824c37343ca1633259fadbbde36f42cdb8ea974ee1cc575d61c34db3f8cd8c6606123564261de82220c019c18792914d

  • SSDEEP

    6144:gexR0RqPHU959bQApoKAz3Snx/3mmDXFiIey6R4Kxg13T8j7GoKDPGTmmA:5uqPAoKAz3Sx/3dViIy4Kxg13T8j7Go/

Score
10/10
cobaltstrike391144938backdoortrojan

Malware Config

Extracted

Family

cobaltstrike

Botnet

391144938

C2

http://121.40.254.24:8724/ptj

Attributes
  • access_type

    512

  • host

    121.40.254.24,/ptj

  • http_header1

    AAAABwAAAAAAAAADAAAABgAAAAZDb29raWUAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=

  • http_header2

    AAAACgAAACZDb250ZW50LVR5cGU6IGFwcGxpY2F0aW9uL29jdGV0LXN0cmVhbQAAAAcAAAAAAAAABQAAAAJpZAAAAAcAAAABAAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=

  • http_method1

    GET

  • http_method2

    POST

  • polling_time

    60000

  • port_number

    8724

  • sc_process32

    %windir%\syswow64\rundll32.exe

  • sc_process64

    %windir%\sysnative\rundll32.exe

  • state_machine

    MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC/TybzK6APgSkvv/ntRDuV6D06v8UwSiyjlGX3NrsSKfjmdbvCc0H0q4bTVOMKAMUq0XEU3xuMrcMYvg+eymca8YaTyV3vMD9CqUVKwuOKRLZyBeeQD+TdK0/tkAvuZGpzHycQLjIeE+y7JpHEz3gLwILb0icKAXAZfCwKPh7lpQIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • unknown1

    4096

  • unknown2

    AAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • uri

    /submit.php

  • user_agent

    Mozilla/5.0 (Windows NT 6.3; rv:36.0) Gecko/20100101 Firefox/36.0

  • watermark

    391144938

Targets

    • Target

      8a881d784c1144a9c144288ff98fd84db0165fbddffbda16da983eaad13ac2eb

    • Size

      363KB

    • MD5

      844cabf7df93b2dcc4578f6fec951dd9

    • SHA1

      8be2362bafc4ebc6f5643a4b591b1b9e6ce7a2ed

    • SHA256

      8a881d784c1144a9c144288ff98fd84db0165fbddffbda16da983eaad13ac2eb

    • SHA512

      715b1f3e47c3afe44b22dd9ee9ee7c2b824c37343ca1633259fadbbde36f42cdb8ea974ee1cc575d61c34db3f8cd8c6606123564261de82220c019c18792914d

    • SSDEEP

      6144:gexR0RqPHU959bQApoKAz3Snx/3mmDXFiIey6R4Kxg13T8j7GoKDPGTmmA:5uqPAoKAz3Sx/3dViIy4Kxg13T8j7Go/

    Score
    10/10
    cobaltstrike391144938backdoortrojan

    • Cobaltstrike

      Detected malicious payload which is part of Cobaltstrike.

      trojanbackdoorcobaltstrike

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks