Overview

overview

10

Static

static

7

c35cb9bc65...dc.exe

windows7-x64

10

c35cb9bc65...dc.exe

windows10-2004-x64

10

Resubmissions

20-10-2023 20:44

231020-zh7cesda53 7

20-10-2023 20:39

231020-zfgc8abd6z 10

Analysis

  • max time kernel
    141s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231020-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231020-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-10-2023 20:39

Sharing

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General

  • Target

    c35cb9bc65666998f6bdcbbf23416ec413e90e5d9bf230dea4e4b0d697a6dadc.exe

  • Size

    3.3MB

  • MD5

    10e27109d97e0085c5dd8f5ba13ffc2b

  • SHA1

    09ac5dfab186df13046177372361be20aced7d0b

  • SHA256

    c35cb9bc65666998f6bdcbbf23416ec413e90e5d9bf230dea4e4b0d697a6dadc

  • SHA512

    2a604e1a8b6683bc8d4322b9ce99ca7441dd9a19016682cded2631faec2a6098e70e1902460a216424f463c6ac66e59bedcdee1cfd8bfd7c168785d6f5ea0435

  • SSDEEP

    98304:fhZnrR8isfCgTOPyRsvP2k7qlte5T1hzgH:pZnCZTOPOs32k7qlc54

Score
10/10
cobaltstrike100000backdoorevasionthemidatrojan

Malware Config

Extracted

Family

cobaltstrike

Botnet

100000

C2

http://192.168.1.11:80/owa/

Attributes
  • access_type

    512

  • host

    192.168.1.11,/owa/

  • http_header1

    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

  • http_header2

    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

  • http_method1

    GET

  • http_method2

    GET

  • polling_time

    10000

  • port_number

    80

  • sc_process32

    %windir%\syswow64\rundll32.exe

  • sc_process64

    %windir%\sysnative\rundll32.exe

  • state_machine

    MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCTGlQVYEKx+zEx/XlvnRZHkR4XgeWa6eMBAUG9gpgqOd0Gz2Szgc0nTBqfh75B1qHdxHyaFiW6FM/VOzDCKUEb2XKVeExuPT3bEfDMjZgkGv9ixXhUb5Hp4TmSgoRNVh4AOqLC/tiYMnSmwhGcEh0507I0n+pH/IWD8ZceZbcDQwIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • unknown1

    1.448416512e+09

  • unknown2

    AAAABAAAAA0AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • unknown3

    1.610612736e+09

  • uri

    /OWA/

  • user_agent

    Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; InfoPath.2; InfoPath.3)

  • watermark

    100000

Signatures

  • Cobaltstrike

    Detected malicious payload which is part of Cobaltstrike.

    trojanbackdoorcobaltstrike
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
    evasion
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Themida packer 4 IoCs

    Detects Themida, an advanced Windows software protection system.

    themida
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
    evasiontrojan
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c35cb9bc65666998f6bdcbbf23416ec413e90e5d9bf230dea4e4b0d697a6dadc.exe
    "C:\Users\Admin\AppData\Local\Temp\c35cb9bc65666998f6bdcbbf23416ec413e90e5d9bf230dea4e4b0d697a6dadc.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    PID:2588

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2588-0-0x00007FF631880000-0x00007FF63206A000-memory.dmp
    Filesize

    7.9MB

    Download
  • memory/2588-1-0x00007FFEAB770000-0x00007FFEAB965000-memory.dmp
    Filesize

    2.0MB

    Download
  • memory/2588-2-0x00007FF631880000-0x00007FF63206A000-memory.dmp
    Filesize

    7.9MB

    Download
  • memory/2588-3-0x00007FF631880000-0x00007FF63206A000-memory.dmp
    Filesize

    7.9MB

    Download
  • memory/2588-4-0x0000027299B70000-0x0000027299BB1000-memory.dmp
    Filesize

    260KB

    Download
  • memory/2588-5-0x0000027299BC0000-0x0000027299C3B000-memory.dmp
    Filesize

    492KB

    Download
  • memory/2588-6-0x00007FF631880000-0x00007FF63206A000-memory.dmp
    Filesize

    7.9MB

    Download
  • memory/2588-7-0x00007FFEAB770000-0x00007FFEAB965000-memory.dmp
    Filesize

    2.0MB

    Download
  • memory/2588-9-0x0000027299BC0000-0x0000027299C3B000-memory.dmp
    Filesize

    492KB

    Download