Overview

overview

10

Static

static

8

77f3cf4c9b...49.exe

windows7-x64

10

77f3cf4c9b...49.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    77f3cf4c9b1e6c42a9927a04a9c0727fd2d3e576c6a63e49370dfede61f81e49

  • Size

    1.1MB

  • Sample

    220803-g515tagaa4

  • MD5

    fe1e96958b3daaa6d6a80a20180d558a

  • SHA1

    3512a79b0f93e8d82c5d6e9ed01c72895d34cd00

  • SHA256

    77f3cf4c9b1e6c42a9927a04a9c0727fd2d3e576c6a63e49370dfede61f81e49

  • SHA512

    80c01b5f188c4080d844c483f825f5e6b4c9e10e765d0e876b2d7617b10702dbf431486e22eabccf0dd074ea0a8fc6bdd608ea466f89de16599c16e28c0f58c5

Score
10/10
cobaltstrike1backdoorlinkpdftrojanupx

Malware Config

Extracted

Family

cobaltstrike

Botnet

1

C2

http://update.micrrosoft.life:8443/jquery-3.3.1.min.js

Attributes
  • access_type

    512

  • beacon_type

    2048

  • host

    update.micrrosoft.life,/jquery-3.3.1.min.js

  • http_header1

    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

  • http_header2

    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

  • http_method1

    GET

  • http_method2

    POST

  • jitter

    9472

  • polling_time

    45000

  • port_number

    8443

  • sc_process32

    %windir%\syswow64\dllhost.exe

  • sc_process64

    %windir%\sysnative\dllhost.exe

  • state_machine

    MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCMzD/AZsTe+L9OMJsKFX3v1nhbQkO1ubtGq8teBoaBGRO84Q3felGNQB8iVNbFpmmoykrsbYwDu8Ir2LrfTROG3X5oGN8d6+lOg4zo6Rjfvrnydiv0dnxIfn02T1431q9GcIvSBHb7J7i/7f8tJPSHdJBOGtVJg9ienNWCF2WllwIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • unknown1

    4.234810624e+09

  • unknown2

    AAAABAAAAAEAAAXyAAAAAgAAAFQAAAACAAAPWwAAAA0AAAAPAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • uri

    /jquery-3.3.2.min.js

  • user_agent

    Mozilla/5.0 (Windows NT 6.3; Trident/7.0; rv:11.0) like Gecko

  • watermark

    1

Targets

    • Target

      77f3cf4c9b1e6c42a9927a04a9c0727fd2d3e576c6a63e49370dfede61f81e49

    • Size

      1.1MB

    • MD5

      fe1e96958b3daaa6d6a80a20180d558a

    • SHA1

      3512a79b0f93e8d82c5d6e9ed01c72895d34cd00

    • SHA256

      77f3cf4c9b1e6c42a9927a04a9c0727fd2d3e576c6a63e49370dfede61f81e49

    • SHA512

      80c01b5f188c4080d844c483f825f5e6b4c9e10e765d0e876b2d7617b10702dbf431486e22eabccf0dd074ea0a8fc6bdd608ea466f89de16599c16e28c0f58c5

    Score
    10/10
    cobaltstrike1backdoorlinkpdftrojanupx

    • Cobaltstrike

      Detected malicious payload which is part of Cobaltstrike.

      trojanbackdoorcobaltstrike

    • Executes dropped EXE

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx

    • Checks computer location settings

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

    • Loads dropped DLL

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks