Analysis

  • max time kernel
    143s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230831-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-09-2023 13:15

General

  • Target

    dfc7edf1c78ecbd66f71ffa2b90ed14afa8163eb752650f3a411b780006a5127.exe

  • Size

    1.1MB

  • MD5

    8d8fe0914ac639be97c5d75898313a36

  • SHA1

    207c7ccfc53dbcec01d70a412118752331fcecac

  • SHA256

    dfc7edf1c78ecbd66f71ffa2b90ed14afa8163eb752650f3a411b780006a5127

  • SHA512

    f02ec82c8e3cd9c5965c0ff1f1dc6f7796834ea16a76b342a6de104506c6d2d400aa99162d01194d374796bdaf666a17cdf8eee0865d6cafd742abe74e604edb

  • SSDEEP

    24576:+GHCm8uPdJhdZDWTBaAOXmjZ3Jn9opwfUZQr304Dh3A9g1rCPZV4E:DuWPHACGJnepwMZQrk4DskCRV/

Malware Config

Extracted

Family

cobaltstrike

Botnet

100000

C2

http://206.237.17.176:8443/pixel.gif

Attributes
  • access_type

    512

  • beacon_type

    2048

  • host

    206.237.17.176,/pixel.gif

  • http_header1

    AAAABwAAAAAAAAADAAAABgAAAAZDb29raWUAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=

  • http_header2

    AAAACgAAACZDb250ZW50LVR5cGU6IGFwcGxpY2F0aW9uL29jdGV0LXN0cmVhbQAAAAcAAAAAAAAABQAAAAJpZAAAAAcAAAABAAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=

  • http_method1

    GET

  • http_method2

    POST

  • polling_time

    60000

  • port_number

    8443

  • sc_process32

    %windir%\syswow64\rundll32.exe

  • sc_process64

    %windir%\sysnative\rundll32.exe

  • state_machine

    MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCvjuYvf60BtyAlDz4ZCanpB8v1IvFxQcW0TQKIZjXTFbkjUyweLLei6qqrEnPa5Zigs2v9ivFyBLwSLlcZeg2LLxUz67Ka+ee/AVGG0bSX3Kye/QF6mz7qIXer/C0A9AJjUQdYKU62tbjZXdbQuTnUZ/kC0NB6CCi7Q8fhDbpsrwIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • unknown1

    4096

  • unknown2

    AAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • uri

    /submit.php

  • user_agent

    Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; Win64; x64; Trident/6.0)

  • watermark

    100000

Extracted

Family

cobaltstrike

Botnet

0

Attributes
  • watermark

    0

Signatures

  • Cobaltstrike

    Detected malicious payload which is part of Cobaltstrike.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dfc7edf1c78ecbd66f71ffa2b90ed14afa8163eb752650f3a411b780006a5127.exe
    "C:\Users\Admin\AppData\Local\Temp\dfc7edf1c78ecbd66f71ffa2b90ed14afa8163eb752650f3a411b780006a5127.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3928
    • C:\windows\temp\main.exe
      "C:\windows\temp\main.exe"
      2⤵
      • Executes dropped EXE
      PID:4356

Network

MITRE ATT&CK Matrix ATT&CK v13

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Windows\Temp\main.exe
    Filesize

    1.8MB

    MD5

    cde98fef18f15ebc886f13cbd446228e

    SHA1

    4ef7fead6e24a5f93b21712e049632fba7baf7f0

    SHA256

    11924363bbb2981801b4680310b2de31a44774868ded45f228f7e03179bc3bd9

    SHA512

    fcb65475cfe7d5ed96b080bfadcb1536bb377a83d67b71c0b50c0b80b6a36f9d9d8a61f8b3d971616b7493e6b3b574b3df6e1efeedece53d7716a18e25f70acd

  • C:\Windows\Temp\main.exe
    Filesize

    1.8MB

    MD5

    cde98fef18f15ebc886f13cbd446228e

    SHA1

    4ef7fead6e24a5f93b21712e049632fba7baf7f0

    SHA256

    11924363bbb2981801b4680310b2de31a44774868ded45f228f7e03179bc3bd9

    SHA512

    fcb65475cfe7d5ed96b080bfadcb1536bb377a83d67b71c0b50c0b80b6a36f9d9d8a61f8b3d971616b7493e6b3b574b3df6e1efeedece53d7716a18e25f70acd

  • C:\windows\temp\main.exe
    Filesize

    1.8MB

    MD5

    cde98fef18f15ebc886f13cbd446228e

    SHA1

    4ef7fead6e24a5f93b21712e049632fba7baf7f0

    SHA256

    11924363bbb2981801b4680310b2de31a44774868ded45f228f7e03179bc3bd9

    SHA512

    fcb65475cfe7d5ed96b080bfadcb1536bb377a83d67b71c0b50c0b80b6a36f9d9d8a61f8b3d971616b7493e6b3b574b3df6e1efeedece53d7716a18e25f70acd

  • memory/4356-11-0x0000020F70CE0000-0x0000020F70D21000-memory.dmp
    Filesize

    260KB

  • memory/4356-13-0x0000020F70E70000-0x0000020F70EBF000-memory.dmp
    Filesize

    316KB

  • memory/4356-14-0x0000020F70E70000-0x0000020F70EBF000-memory.dmp
    Filesize

    316KB