Overview

overview

10

Static

static

wegfkfffeovy.exe

windows10_x64

10

Resubmissions

07-12-2021 18:30

211207-w5h2kafcc5 10

07-12-2021 16:38

211207-t5l24sbean 10

Analysis

  • max time kernel
    1802s
  • max time network
    1799s
  • platform
    windows10_x64
  • resource
    win10-en-20211104
  • submitted
    07-12-2021 18:30

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Report Analysis Logs

General

  • Target

    wegfkfffeovy.exe

  • Size

    922KB

  • MD5

    63ab5d17585a8734d643324e2a8fa90e

  • SHA1

    a02e0dbcfb20c3f5f2e8965f6b4dbe31928bee7b

  • SHA256

    5b5fa30bf12f13f881708222824517d662f410b212a0f7f7ce5c611fd809f809

  • SHA512

    cfff2a8f4fa6eb0f775c266c0ef3bc1b7b85f9b905e01a997c092264665b1fd576250c6aa94b77278a26e15c29a039d4f0d2885b280383be77d77b8a4e2717f2

Score
10/10
cobaltstrike0backdoortrojan

Malware Config

Extracted

Family

cobaltstrike

Botnet

0

C2

http://lartmana.com:443/jquery-3.3.1.min.js

Attributes
  • access_type

    512

  • beacon_type

    2048

  • host

    lartmana.com,/jquery-3.3.1.min.js

  • http_header1

    AAAACgAAAEdBY2NlcHQ6IHRleHQvaHRtbCxhcHBsaWNhdGlvbi94aHRtbCt4bWwsYXBwbGljYXRpb24veG1sO3E9MC45LCovKjtxPTAuOAAAAAoAAAAgUmVmZXJlcjogaHR0cDovL2NvZGUuanF1ZXJ5LmNvbS8AAAAKAAAAHkFjY2VwdC1FbmNvZGluZzogZ3ppcCwgZGVmbGF0ZQAAAAcAAAAAAAAADQAAAAIAAAAJX19jZmR1aWQ9AAAABgAAAAZDb29raWUAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=

  • http_header2

    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

  • http_method1

    GET

  • http_method2

    POST

  • jitter

    2560

  • polling_time

    5000

  • port_number

    443

  • sc_process32

    %windir%\syswow64\dllhost.exe

  • sc_process64

    %windir%\sysnative\dllhost.exe

  • state_machine

    MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCbcI0B4jpE0I6Ioj0qYRjoDYlN52X78HX2BZ1bBLV60oOeXcvOGi7Rxcz/n0luXqmSpsw9M4x0dnUWFYPL2HUxzufEfchGPyxEnH6ASasVbS0OWqIkUsuri/5vJUvisrcKT9Ebodon8Z2AUqOaZZ8s37VUxJhSm4IxsLJ6WRgFkwIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • unknown1

    4.234810624e+09

  • unknown2

    AAAABAAAAAEAAAXyAAAAAgAAAFQAAAACAAAPWwAAAA0AAAAPAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • uri

    /jquery-3.3.2.min.js

  • user_agent

    Mozilla/5.0 (Windows NT 6.3; Trident/7.0; rv:11.0) like Gecko

  • watermark

    0

Signatures

  • Cobaltstrike

    Detected malicious payload which is part of Cobaltstrike.

    trojanbackdoorcobaltstrike
  • Drops file in Windows directory 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\wegfkfffeovy.exe
    "C:\Users\Admin\AppData\Local\Temp\wegfkfffeovy.exe"
    1⤵
      PID:3720
    • C:\Windows\system32\taskmgr.exe
      "C:\Windows\system32\taskmgr.exe" /4
      1⤵
      • Drops file in Windows directory
      • Checks SCSI registry key(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2376

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3720-118-0x0000000002590000-0x0000000002A02000-memory.dmp

      Filesize

      4.4MB

      Download

    • memory/3720-119-0x0000000002590000-0x0000000002A02000-memory.dmp

      Filesize

      4.4MB

      Download

    • memory/3720-120-0x0000000000170000-0x00000000001B1000-memory.dmp

      Filesize

      260KB

      Download