Analysis

  • max time kernel
    139s
  • max time network
    143s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    04-07-2022 06:06

General

  • Target

    420088c49ca30f9330dbae99c7f54d3e5598f266cdfdb20f520f09e292e45c16.exe

  • Size

    861KB

  • MD5

    f3d0646fa771df9555d51dc6f6334f5e

  • SHA1

    ef5e02686b76ab6d98b3ef459680444740a4e459

  • SHA256

    420088c49ca30f9330dbae99c7f54d3e5598f266cdfdb20f520f09e292e45c16

  • SHA512

    2c5612af31057c8b44e403030d589df8e4fa21660cb772c749521e725991832a2b3ac9dfaebd4355e7d503e70c3bf4715936727b693503c5bbfb25007125aaf6

Malware Config

Extracted

Family

metasploit

Version

windows/download_exec

C2

http://www.sgcc-cdn.tk:8443//jquery-3.3.1.slim.min.js

Extracted

Family

cobaltstrike

Botnet

999999

C2

http://www.sgcc-cdn.tk:8443//jquery-3.3.1.min.js

Attributes
  • access_type

    512

  • beacon_type

    2048

  • host

    www.sgcc-cdn.tk,//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

    MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC0JYdyFmKJo8a7JIDeBqIa0rgiNHYLFi9Fhdl13fzbNIMhewqUnrnFHlpBgFvQViuE+zA/ltAAtQX7ZzDhalQKs0y1zS1NZwK1gSiz8R1d+TEKdjStpOzbd+U1mbS1Ep3/liiQ6JP4jlXjJOt9yoItHtc5JocvYCCIqWzmBcHIfQIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • unknown1

    4.234810624e+09

  • unknown2

    AAAABAAAAAEAAAXyAAAAAgAAAFQAAAACAAAPWwAAAA0AAAAPAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • uri

    //jquery-3.3.2.min.js

  • user_agent

    Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.54 Safari/537.36

  • watermark

    999999

Signatures

  • Cobaltstrike

    Detected malicious payload which is part of Cobaltstrike.

  • MetaSploit

    Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

  • suricata: ET MALWARE Cobalt Strike Malleable C2 JQuery Custom Profile Response

    suricata: ET MALWARE Cobalt Strike Malleable C2 JQuery Custom Profile Response

  • suricata: ET MALWARE Generic .bin download from Dotted Quad

    suricata: ET MALWARE Generic .bin download from Dotted Quad

  • suricata: ET MALWARE Possible Metasploit Payload Common Construct Bind_API (from server)

    suricata: ET MALWARE Possible Metasploit Payload Common Construct Bind_API (from server)

  • suricata: ET MALWARE Successful Cobalt Strike Shellcode Download (x32)

    suricata: ET MALWARE Successful Cobalt Strike Shellcode Download (x32)

  • Blocklisted process makes network request 7 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\420088c49ca30f9330dbae99c7f54d3e5598f266cdfdb20f520f09e292e45c16.exe
    "C:\Users\Admin\AppData\Local\Temp\420088c49ca30f9330dbae99c7f54d3e5598f266cdfdb20f520f09e292e45c16.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1928
    • C:\Windows\SysWOW64\rundll32.exe
      C:\Windows\System32\rundll32.exe
      2⤵
      • Blocklisted process makes network request
      • Modifies system certificate store
      PID:888

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/888-55-0x00000000002C178C-mapping.dmp
  • memory/888-57-0x0000000003200000-0x0000000003672000-memory.dmp
    Filesize

    4.4MB

  • memory/888-58-0x0000000002E00000-0x0000000003200000-memory.dmp
    Filesize

    4.0MB

  • memory/888-59-0x0000000003200000-0x0000000003672000-memory.dmp
    Filesize

    4.4MB

  • memory/888-60-0x0000000002E00000-0x0000000003200000-memory.dmp
    Filesize

    4.0MB

  • memory/1928-54-0x0000000076011000-0x0000000076013000-memory.dmp
    Filesize

    8KB