Overview

overview

10

Static

static

2a1a3f6f1f...a3.exe

windows7_x64

10

2a1a3f6f1f...a3.exe

windows10_x64

10

Sharing

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General

  • Target

    2a1a3f6f1f138cf46a4aca66b22a2d4298a12e2115511127919a63b9150f4aa3

  • Size

    277KB

  • Sample

    210111-yfzxslysln

  • MD5

    9b8892d3af5dcca1022eaeabc2948074

  • SHA1

    207e448a72aadde3c1c13bb1be3c2ddb3fcc89d8

  • SHA256

    2a1a3f6f1f138cf46a4aca66b22a2d4298a12e2115511127919a63b9150f4aa3

  • SHA512

    f3053f3cffba152098cdaee1513522fe0ab3edc053b5c372d5ac3e65391f51c4054e595db2dfa155b9d6475e63eba3e8e18d86cc82d1935f94d74116b0e36f95

Score
10/10
cobaltstrikebackdoortrojan

Malware Config

Extracted

Family

cobaltstrike

C2

http://213.135.78.244:443/hr.css

Attributes
  • access_type

    512

  • beacon_type

    2048

  • dns_sleep

    1.6777216e+08

  • host

    213.135.78.244,/hr.css

  • http_header1

    AAAAEAAAABRIb3N0OiBuczEucmVkdGVhbS5ydQAAAAoAAAARQ29ubmVjdGlvbjogY2xvc2UAAAAKAAAAPUFjY2VwdC1MYW5ndWFnZTogZnItQ0gsIGZyO3E9MC45LCBlbjtxPTAuOCwgZGU7cT0wLjcsICo7cT0wLjUAAAAHAAAAAAAAAAMAAAADAAAAAgAAACt3b3JkcHJlc3NfZWQxZjYxN2JiZDZjMDA0Y2MwOWUwNDZmM2MxYjcxNDg9AAAABgAAAAZDb29raWUAAAAJAAAADGNvbXBhbnk9dHJ1ZQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • http_header2

    AAAAEAAAABRIb3N0OiBuczEucmVkdGVhbS5ydQAAAAoAAAARQ29ubmVjdGlvbjogY2xvc2UAAAAKAAAAGENvbnRlbnQtVHlwZTogdGV4dC9wbGFpbgAAAAcAAAABAAAACwAAAAMAAAAEAAAABwAAAAAAAAADAAAAAgAAAA5fX3Nlc3Npb25fX2lkPQAAAAYAAAAGQ29va2llAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • http_method1

    GET

  • http_method2

    POST

  • jitter

    10496

  • maxdns

    250

  • polling_time

    3000

  • port_number

    443

  • sc_process32

    %windir%\syswow64\rundll32.exe

  • sc_process64

    %windir%\sysnative\rundll32.exe

  • state_machine

    MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDPZKC+d3OyhV69kk6cGbPoYKTNrNH2sYMeWXGPxQBx5lnHleIFkX3RTzNGyie4YHpwQvslXPmPxbPywD3W9lLsU6hrvNs1mHxIXqe8d6fe2KLThQIzh29Z2KWyIuTSoOiJos0doSdrrs0g8eUNEZUGwnqJY/Lq2wAmlXNcyYBFAQIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • unknown1

    2.641697792e+09

  • unknown2

    AAAABAAAAAIAAAPVAAAAAwAAAA0AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • uri

    /tab_shop_active

  • user_agent

    Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.111 Safari/537.36

Targets

    • Target

      2a1a3f6f1f138cf46a4aca66b22a2d4298a12e2115511127919a63b9150f4aa3

    • Size

      277KB

    • MD5

      9b8892d3af5dcca1022eaeabc2948074

    • SHA1

      207e448a72aadde3c1c13bb1be3c2ddb3fcc89d8

    • SHA256

      2a1a3f6f1f138cf46a4aca66b22a2d4298a12e2115511127919a63b9150f4aa3

    • SHA512

      f3053f3cffba152098cdaee1513522fe0ab3edc053b5c372d5ac3e65391f51c4054e595db2dfa155b9d6475e63eba3e8e18d86cc82d1935f94d74116b0e36f95

    Score
    10/10
    cobaltstrikebackdoortrojan
    behavioral1behavioral2

MITRE ATT&CK Matrix

Tasks