Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    04-01-2022 00:11

General

  • Target

    48951d50abf8359aad5a14d14d4bd4f442ce55f21da1e1f8bd4116be41fa5daf.bin.dll

  • Size

    383KB

  • MD5

    6899a309b7e298f7879ff75cce5ff6c6

  • SHA1

    b3e4cc5e8599b1d3ead601f41558f803b8db308d

  • SHA256

    48951d50abf8359aad5a14d14d4bd4f442ce55f21da1e1f8bd4116be41fa5daf

  • SHA512

    6843403496c69c16f0bd5088f6c9504a509f77cbba0530903124bf90dc0c9fa49a129e7fca6c0055c8aa0fb1453d63066aaa2b8ad6edb5d7f4bc9326581dedd4

Malware Config

Extracted

Family

cobaltstrike

Botnet

0

C2

http://baravazna.com:80/jquery-3.3.1.min.js

Attributes
  • access_type

    512

  • host

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

  • http_header1

    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

  • http_header2

    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

  • http_method1

    GET

  • http_method2

    POST

  • jitter

    2560

  • polling_time

    5000

  • port_number

    80

  • sc_process32

    %windir%\syswow64\dllhost.exe

  • sc_process64

    %windir%\sysnative\dllhost.exe

  • state_machine

    MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCFtg8nSO1Kg+yalqkTqSycP2oW8JKU0EBWjOVwdiaOEwxATLGqXJw7IwYSq7rW1X0g9QJ72zRyAvfchwm9H1mVHoPDj1bLLMF+pZaBUJ9ZACSrDQJQZBG+MdJmZVvZfPcB45tzMYL+YWY1emtYbgTM3P6o+uqYL3U/xUWnxwWwaQIDAQABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==

  • 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.

  • suricata: ET MALWARE Cobalt Strike Beacon Activity (GET)

    suricata: ET MALWARE Cobalt Strike Beacon Activity (GET)

  • suricata: ET MALWARE Cobalt Strike Malleable C2 JQuery Custom Profile M2

    suricata: ET MALWARE Cobalt Strike Malleable C2 JQuery Custom Profile M2

  • suricata: ET MALWARE Cobalt Strike Malleable C2 JQuery Custom Profile Response

    suricata: ET MALWARE Cobalt Strike Malleable C2 JQuery Custom Profile Response

  • Blocklisted process makes network request 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\48951d50abf8359aad5a14d14d4bd4f442ce55f21da1e1f8bd4116be41fa5daf.bin.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:684
    • C:\Windows\System32\cmd.exe
      /c rundll32 "C:\Users\Admin\AppData\Local\Temp\48951d50abf8359aad5a14d14d4bd4f442ce55f21da1e1f8bd4116be41fa5daf.bin.dll", opxHaqTeHKOxAsPT
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3052
      • C:\Windows\system32\rundll32.exe
        rundll32 "C:\Users\Admin\AppData\Local\Temp\48951d50abf8359aad5a14d14d4bd4f442ce55f21da1e1f8bd4116be41fa5daf.bin.dll", opxHaqTeHKOxAsPT
        3⤵
        • Blocklisted process makes network request
        PID:548

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/548-116-0x0000000000000000-mapping.dmp
  • memory/548-117-0x000002303B720000-0x000002303BB92000-memory.dmp
    Filesize

    4.4MB

  • memory/548-118-0x000002303B520000-0x000002303B561000-memory.dmp
    Filesize

    260KB

  • memory/548-119-0x000002303B720000-0x000002303BB92000-memory.dmp
    Filesize

    4.4MB

  • memory/3052-115-0x0000000000000000-mapping.dmp