Overview

overview

10

Static

static

7

f4ac75a045...5f.exe

windows7_x64

10

f4ac75a045...5f.exe

windows10_x64

10

Analysis

  • max time kernel
    121s
  • max time network
    126s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    13-01-2022 09:52

Sharing

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General

  • Target

    f4ac75a045acee2cadbe9fa0e02bfd4ab4124018e00193930966b8141351115f.exe

  • Size

    4.0MB

  • MD5

    7669f00b467e2990be182584b341c0e8

  • SHA1

    2eaa91f38461d708ee6e94ec2f738f3cdfb229b7

  • SHA256

    f4ac75a045acee2cadbe9fa0e02bfd4ab4124018e00193930966b8141351115f

  • SHA512

    46f70fe999b4461dd6b3cec4bc10ba6389f7f9c3aa685acf0830bd3c8c66d6474b77f2487496455e52b36905c39fc648b28bb72dd9e782a7d77d5b9cd33da560

Score
10/10
cobaltstrike0666backdoorevasiontrojan

Malware Config

Extracted

Family

cobaltstrike

Botnet

666

C2

http://cofeeloveers.com:443/image/

Attributes
  • access_type

    512

  • beacon_type

    2048

  • dns_idle

    6.7373064e+07

  • dns_sleep

    8.1297408e+08

  • host

    cofeeloveers.com,/image/

  • http_header1

    AAAACgAAAB9BY2NlcHQtTGFuZ3VhZ2U6IGVuLVVTLGVuO3E9MC41AAAACgAAAFJBY2NlcHQ6IHRleHQvaHRtbCxhcHBsaWNhdGlvbi94aHRtbCt4bWwsYXBwbGljYXRpb24veG1sO3E9MC45LGltYWdlL3dlYnAsKi8qO3E9MC44AAAACgAAAB5BY2NlcHQtRW5jb2Rpbmc6IGd6aXAsIGRlZmxhdGUAAAAKAAAAEUNvbm5lY3Rpb246IGNsb3NlAAAABwAAAAAAAAAPAAAADQAAAAEAAAALL2tpdHRlbi5naWYAAAAMAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • http_header2

    AAAACgAAAB5Db250ZW50LVR5cGU6IGFwcGxpY2F0aW9uL2pzb24AAAAKAAAAEUNvbm5lY3Rpb246IGNsb3NlAAAABwAAAAAAAAAPAAAACAAAAAYAAAAOQXV0aGVudGljYXRpb24AAAAHAAAAAQAAAAMAAAACAAAAc3siaW1hZ2VfdXJsIiA6ICJodHRwczovL3N1bjktMjMudXNlcmFwaS5jb20vRzRKdmRaREVmTGRJUGxOTjEtSmtNR1EydW5mMktFSVY1NE9tNWcvYWJKNzBqR0hmVmsuanBnIiwgIm1ldGFkYXRhIiA6ICIAAAABAAAAAiJ9AAAABAAAAAAAAA==

  • http_method1

    GET

  • http_method2

    POST

  • jitter

    5120

  • maxdns

    235

  • polling_time

    60000

  • port_number

    443

  • sc_process32

    %windir%\syswow64\dfrgui.exe

  • sc_process64

    %windir%\sysnative\dfrgui.exe

  • state_machine

    MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC+r+/ykAr2nRnQhGrS75YAUEbQAmNGkJlaJe92kB/VjTIauKLqrs3M0F5alC13I5xp4joeb0Xvewl/f2Hh9+IL5XHSODfjnbnsVyeX2pe2Z2tBJ9eq/NRNNsdPXkmPKhnkL95Uslczv8YVeu/uapbGAmuLctlo+M78SHN9SGHeAwIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • unknown1

    3.2384e+09

  • unknown2

    AAAABAAAAAIAAABAAAAAAgAAAEAAAAACAAAAQAAAAAIAAABAAAAAAgAAAEAAAAACAAAAQAAAAAIAAABAAAAAAgAAAEAAAAACAAAAQAAAAAIAAABAAAAAAgAAAEAAAAACAAAAQAAAAAIAAABAAAAAAgAAAEAAAAACAAAAQAAAAAIAAABAAAAAAgAAAEAAAAACAAAAQAAAAAIAAABAAAAAAgAAAEAAAAACAAAAQAAAAAIAAABAAAAAAgAAAEAAAAACAAAAQAAAAAIAAABAAAAAAgAAAEAAAAACAAAAQAAAAAIAAAABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • uri

    /temp/

  • user_agent

    Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.163 Safari/537.36

  • watermark

    666

Extracted

Family

cobaltstrike

Botnet

0

Attributes
  • watermark

    0

Signatures

  • Cobaltstrike

    Detected malicious payload which is part of Cobaltstrike.

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

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

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\f4ac75a045acee2cadbe9fa0e02bfd4ab4124018e00193930966b8141351115f.exe
    "C:\Users\Admin\AppData\Local\Temp\f4ac75a045acee2cadbe9fa0e02bfd4ab4124018e00193930966b8141351115f.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    PID:3828
    • C:\Windows\system32\sethc.exe
      \SystemRoot\system32\sethc.exe
      2⤵
        PID:1160

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Privilege Escalation

    Defense Evasion

    Virtualization/Sandbox Evasion

    1
    T1497

    Credential Access

    Discovery

    Query Registry

    2
    T1012

    Virtualization/Sandbox Evasion

    1
    T1497

    System Information Discovery

    2
    T1082

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • memory/1160-116-0x0000016FAEF10000-0x0000016FAEF8D000-memory.dmp
      Filesize

      500KB

      Download
    • memory/1160-117-0x0000016FAD4E0000-0x0000016FAD520000-memory.dmp
      Filesize

      256KB

      Download
    • memory/1160-118-0x0000016FAEF10000-0x0000016FAEF8D000-memory.dmp
      Filesize

      500KB

      Download
    • memory/3828-115-0x00007FF7D4601000-0x00007FF7D4603000-memory.dmp
      Filesize

      8KB

      Download