Analysis

  • max time kernel
    136s
  • max time network
    135s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    05-10-2021 11:53

General

  • Target

    cs.exe

  • Size

    219KB

  • MD5

    63a7a72bde0af31057672d7534b7e245

  • SHA1

    4caff022234b093867d77b6377dd0d423468a503

  • SHA256

    8384650d6af180f802ca6ee4db2e8fff584b7155f2f58b95fed357445fff9d4c

  • SHA512

    a269663279a63566e68cb044fab4305fed282d070a62781ba881da74bca9d4a3c94bdf84d9a338bf79bad6162f096a8a9b89662eac7ef586a3a7e6429cea408e

Malware Config

Extracted

Family

cobaltstrike

Botnet

1359593325

C2

http://pypi.python.org:443/questions/32251816/c-sharp-directives-compilation-error

Attributes
  • access_type

    512

  • beacon_type

    2048

  • host

    pypi.python.org,/questions/32251816/c-sharp-directives-compilation-error

  • http_header1

    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

  • http_header2

    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

  • http_method1

    GET

  • http_method2

    GET

  • jitter

    5632

  • polling_time

    35000

  • port_number

    443

  • sc_process32

    %windir%\syswow64\rundll32.exe

  • sc_process64

    %windir%\sysnative\rundll32.exe

  • state_machine

    MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCAJ9HSCGpsUISIdcX9KSquGTBtNV2BM1E1rv+Ft+mdYImNxh8Nz4froDPf/4X+lKkxgW23GjBft5PITEy/oAJK/Q65fMN90V89aOXvFqTE43YBWaqDawPzPt6cDALvUtnULBWceckc0qo9kOwxn9N4aAi7RLBSP9beFe5VEP7yUQIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • unknown1

    3.445232896e+09

  • unknown2

    AAAABAAAAAEAAAQ/AAAAAgAAABEAAAACAAAATgAAAAIAAAAHAAAAAgAAAHMAAAACAAAAXgAAAAIAAAABAAAADQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • unknown3

    1.610612736e+09

  • uri

    /questions/32251817/c-sharp-directives-compilation-error

  • user_agent

    Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2228.0 Safari/537.36

  • watermark

    1359593325

Signatures

  • Cobaltstrike

    Detected malicious payload which is part of Cobaltstrike.

  • suricata: ET MALWARE Cobalt Strike Malleable C2 Request (Stackoverflow Profile)

    suricata: ET MALWARE Cobalt Strike Malleable C2 Request (Stackoverflow Profile)

  • Modifies system certificate store 2 TTPs 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cs.exe
    "C:\Users\Admin\AppData\Local\Temp\cs.exe"
    1⤵
    • Modifies system certificate store
    PID:2012

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2012-54-0x00000000001B0000-0x00000000001ED000-memory.dmp
    Filesize

    244KB

  • memory/2012-55-0x0000000075FA1000-0x0000000075FA3000-memory.dmp
    Filesize

    8KB

  • memory/2012-56-0x00000000001B0000-0x00000000001ED000-memory.dmp
    Filesize

    244KB