Overview

overview

10

Static

static

10

a0d5c9c018...fa.exe

windows7-x64

10

a0d5c9c018...fa.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    140s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/01/2024, 17:03

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General

  • Target

    a0d5c9c0184ebd72cd5cb630d46cc7eec90d44fe0aaedf49ee13e5f5a73f78fa.exe

  • Size

    26KB

  • MD5

    48a39f8065c33cb02434277549515ae9

  • SHA1

    79943b220449f47d08654410443918ed07bd0aac

  • SHA256

    ad49b06e9f9859301289d5c71353949220997c62ae949dc644a994cf9cdccb45

  • SHA512

    d47a79ef4fe14f130062a1cb07fa2a10c800028b3e9984d1d2d3cbe40ceb17bce0ae02860e146f1ae2fd2bbfc3a47dc675056c65c242d58e8d9fb03023b21acd

  • SSDEEP

    384:qYenjLLAps4T5lBavzb/xlhKOVp91QPb5hxDG6:5OElB6sc9GPbXxDV

Score
10/10
chaosransomwarespywarestealer

Malware Config

Extracted

Path

C:\Users\Admin\3D Objects\read_it.txt

Family

chaos

Ransom Note
----> Chaos is multi language ransomware. Translate your note to any language <---- All of your files have been encrypted Your computer was infected with a ransomware virus. Your files have been encrypted and you won't be able to decrypt them without our help.What can I do to get my files back?You can buy our special decryption software, this software will allow you to recover all of your data and remove the ransomware from your computer.The price for the software is $1,500. Payment can be made in Bitcoin only. How do I pay, where do I get Bitcoin? Purchasing Bitcoin varies from country to country, you are best advised to do a quick google search yourself to find out how to buy Bitcoin. Many of our customers have reported these sites to be fast and reliable: Coinmama - hxxps://www.coinmama.com Bitpanda - hxxps://www.bitpanda.com Payment informationAmount: 0.1473766 BTC Bitcoin Address: bc1qlnzcep4l4ac0ttdrq7awxev9ehu465f2vpt9x0

Signatures

  • Chaos

    Ransomware family first seen in June 2021.

    ransomwarechaos
  • Chaos Ransomware 2 IoCs
  • Detects command variations typically used by ransomware 2 IoCs
  • Renames multiple (180) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 3 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer
  • Drops desktop.ini file(s) 64 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies registry class 1 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
    ransomware
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 49 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a0d5c9c0184ebd72cd5cb630d46cc7eec90d44fe0aaedf49ee13e5f5a73f78fa.exe
    "C:\Users\Admin\AppData\Local\Temp\a0d5c9c0184ebd72cd5cb630d46cc7eec90d44fe0aaedf49ee13e5f5a73f78fa.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4876
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\svchost.exe"
      2⤵
      • Checks computer location settings
      • Drops startup file
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Modifies registry class
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3880
      • C:\Windows\system32\NOTEPAD.EXE
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_it.txt
        3⤵
        • Opens file in notepad (likely ransom note)
        PID:4632

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\3D Objects\read_it.txt
          Filesize

          964B

          MD5

          4217b8b83ce3c3f70029a056546f8fd0

          SHA1

          487cdb5733d073a0427418888e8f7070fe782a03

          SHA256

          7d767e907be373c680d1f7884d779588eb643bebb3f27bf3b5ed4864aa4d8121

          SHA512

          2a58c99fa52f99c276e27eb98aef2ce1205f16d1e37b7e87eb69e9ecda22b578195a43f1a7f70fead6ba70421abf2f85c917551c191536eaf1f3011d3d24f740

          Download Submit

        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\a0d5c9c0184ebd72cd5cb630d46cc7eec90d44fe0aaedf49ee13e5f5a73f78fa.exe.log
          Filesize

          226B

          MD5

          28d7fcc2b910da5e67ebb99451a5f598

          SHA1

          a5bf77a53eda1208f4f37d09d82da0b9915a6747

          SHA256

          2391511d0a66ed9f84ae54254f51c09e43be01ad685db80da3201ec880abd49c

          SHA512

          2d8eb65cbf04ca506f4ef3b9ae13ccf05ebefab702269ba70ffd1ce9e6c615db0a3ee3ac0e81a06f546fc3250b7b76155dd51241c41b507a441b658c8e761df6

          Download Submit

        • C:\Users\Admin\AppData\Roaming\EnableDeny.svg
          Filesize

          1B

          MD5

          d1457b72c3fb323a2671125aef3eab5d

          SHA1

          5bab61eb53176449e25c2c82f172b82cb13ffb9d

          SHA256

          8a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1

          SHA512

          ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0

          Download Submit

        • C:\Users\Admin\AppData\Roaming\svchost.exe
          Filesize

          26KB

          MD5

          48a39f8065c33cb02434277549515ae9

          SHA1

          79943b220449f47d08654410443918ed07bd0aac

          SHA256

          ad49b06e9f9859301289d5c71353949220997c62ae949dc644a994cf9cdccb45

          SHA512

          d47a79ef4fe14f130062a1cb07fa2a10c800028b3e9984d1d2d3cbe40ceb17bce0ae02860e146f1ae2fd2bbfc3a47dc675056c65c242d58e8d9fb03023b21acd

          Download Submit

        • memory/3880-15-0x00007FFCD2A50000-0x00007FFCD3511000-memory.dmp

          Filesize

          10.8MB

          Download

        • memory/3880-1050-0x00007FFCD2A50000-0x00007FFCD3511000-memory.dmp

          Filesize

          10.8MB

          Download

        • memory/4876-0-0x0000000000520000-0x000000000052C000-memory.dmp

          Filesize

          48KB

          Download

        • memory/4876-1-0x00007FFCD2A50000-0x00007FFCD3511000-memory.dmp

          Filesize

          10.8MB

          Download

        • memory/4876-14-0x00007FFCD2A50000-0x00007FFCD3511000-memory.dmp

          Filesize

          10.8MB

          Download