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Overview

overview

10

Static

static

10

c437e5caa4...14.dll

windows7-x64

10

c437e5caa4...14.dll

windows10-2004-x64

10

Resubmissions

01/07/2024, 07:02

240701-ht87qayemg 10

Analysis

  • max time kernel
    30s
  • max time network
    36s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/07/2024, 07:02

Sharing

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General

  • Target

    c437e5caa4f644024014d40e62a5436c59046efc76c666ea3f83ab61df615314.dll

  • Size

    141KB

  • MD5

    5fa10a64b7e1cfc3d8b8d45cefb6f837

  • SHA1

    5f69a841cd4533ba671c1e6f73bd3b65d903f272

  • SHA256

    c437e5caa4f644024014d40e62a5436c59046efc76c666ea3f83ab61df615314

  • SHA512

    98f49ed14fe9fb14c6f0147ff53bb00969be5576f3e8a25ed1b35639390fbb7e88c440a51d451df644e72d2595ebe9748af01230b22400bd5b42ec87685b1306

  • SSDEEP

    3072:HACxLpcTIhjZM3VhHSkYl8CagwurZvE9vV1ZQcR:HTtpcPlJSTl4PuG

Score
10/10
badspacewarmcookiebackdoor

Malware Config

Extracted

Family

warmcookie

C2

185.49.69.41

Attributes
  • mutex

    5628919c-ac3f-4c57-89c9-7c71740b3c8e

  • user_agent

    Mozilla / 4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1;.NET CLR 1.0.3705)

Signatures

  • BadSpace

    A backdoor that is written in C++ and discovered in 2024.

    backdoorbadspace
  • Detects BadSpace backdoor 1 IoCs
  • Warmcookie

    Warmcookie is a backdoor written in C++.

    backdoorwarmcookie
  • Blocklisted process makes network request 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops file in Windows directory 1 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\c437e5caa4f644024014d40e62a5436c59046efc76c666ea3f83ab61df615314.dll
    1⤵
    • Drops file in Windows directory
    PID:4328
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4200,i,6166776566165096562,4582328833313060853,262144 --variations-seed-version --mojo-platform-channel-handle=3464 /prefetch:8
    1⤵
      PID:2200
    • C:\Windows\system32\rundll32.exe
      C:\Windows\system32\rundll32.exe "C:\ProgramData\RtlUpd\RtlUpd.dll",Start /p
      1⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      PID:464

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • C:\ProgramData\RtlUpd\RtlUpd.dll
      Filesize

      141KB

      MD5

      5fa10a64b7e1cfc3d8b8d45cefb6f837

      SHA1

      5f69a841cd4533ba671c1e6f73bd3b65d903f272

      SHA256

      c437e5caa4f644024014d40e62a5436c59046efc76c666ea3f83ab61df615314

      SHA512

      98f49ed14fe9fb14c6f0147ff53bb00969be5576f3e8a25ed1b35639390fbb7e88c440a51d451df644e72d2595ebe9748af01230b22400bd5b42ec87685b1306

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