Overview

overview

10

Static

static

3

main.exe

windows7-x64

10

Analysis

  • max time kernel
    65s
  • max time network
    71s
  • platform
    windows7_x64
  • resource
    win7-20230703-en
  • resource tags

    arch:x64arch:x86image:win7-20230703-enlocale:en-usos:windows7-x64system
  • submitted
    07-07-2023 18:33

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General

  • Target

    main.exe

  • Size

    2.9MB

  • MD5

    269fd44cccfdde45ae1b5c1a544bfbfc

  • SHA1

    0c72f5e685664a8fe29187bad90a32f725883b8d

  • SHA256

    a0c30e540a658e02f5179f5dfcdb344ed18c67d83e9a57b39062c42bc5aa155a

  • SHA512

    4e7a4043d51f6e6b77311f9cb20db24416f58f96897b258525743b0313e0936f021b952eb75a1b6896f0b4887e5648e0db1ad60aa72b9c71384af6a056f1eb51

  • SSDEEP

    49152:01LPC/cm3rb/TkvO90d7HjmAFd4A64nsfJTl1a3HYxw5GF0dCH5EyYugaMEygP0/:Xcmf43PGjEgc

Score
10/10
cobaltstrike100000000backdoortrojan

Malware Config

Extracted

Family

cobaltstrike

Botnet

100000000

C2

http://45.130.145.209:17389/nsmail/skins/login/default/CSS/images

Attributes
  • access_type

    512

  • host

    45.130.145.209,/nsmail/skins/login/default/CSS/images

  • http_header1

    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

  • http_header2

    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

  • http_method1

    GET

  • http_method2

    GET

  • jitter

    23040

  • polling_time

    4000

  • port_number

    17389

  • sc_process32

    %windir%\syswow64\notepad.exe

  • sc_process64

    %windir%\sysnative\notepad.exe

  • state_machine

    MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCTXfwcPVQMe0F3ErtioTQ4xl3AVXezqiyZOysCzoVevJVQ7BWakzzapcXBn6t25i6FuXOUUuNffJ+kV6Dm9xi31hQlgU6lst7du7rAZ3pMnU4qBxq2fPPSNsSro/CZ1TRF9OwMKOSucEgGQbSValaIzy2Kqlsd636wGwC41sg60wIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • unknown1

    3.47106304e+09

  • unknown2

    AAAABAAAAAEAAAAIAAAAAgAAAAoAAAAPAAAAAQAAALMAAAACAAAAZwAAAA0AAAAIAAAADQAAAA8AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • unknown3

    1.610612736e+09

  • uri

    /nsmail/

  • user_agent

    Mozilla/5.0 cb

  • watermark

    100000000

Signatures

  • Cobaltstrike

    Detected malicious payload which is part of Cobaltstrike.

    trojanbackdoorcobaltstrike
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of FindShellTrayWindow 38 IoCs
  • Suspicious use of SendNotifyMessage 38 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\main.exe
    "C:\Users\Admin\AppData\Local\Temp\main.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2316
    • C:\Windows\System32\notepad.exe
      C:\Windows\System32\notepad.exe
      2⤵
        PID:3060
    • C:\Windows\system32\taskmgr.exe
      "C:\Windows\system32\taskmgr.exe" /4
      1⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2980
    • C:\Windows\system32\AUDIODG.EXE
      C:\Windows\system32\AUDIODG.EXE 0x160
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1984

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2316-54-0x0000000028510000-0x0000000028590000-memory.dmp

      Filesize

      512KB

      Download

    • memory/2316-56-0x0000000029F50000-0x000000002A3C2000-memory.dmp

      Filesize

      4.4MB

      Download

    • memory/2316-57-0x0000000028510000-0x0000000028590000-memory.dmp

      Filesize

      512KB

      Download

    • memory/2316-58-0x0000000029B50000-0x0000000029EDF000-memory.dmp

      Filesize

      3.6MB

      Download

    • memory/2316-59-0x0000000029B50000-0x0000000029EDF000-memory.dmp

      Filesize

      3.6MB

      Download

    • memory/2980-55-0x0000000140000000-0x00000001405E8000-memory.dmp

      Filesize

      5.9MB

      Download