Overview

overview

10

Static

static

10

408871cda6...23.exe

windows7-x64

10

408871cda6...23.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    141s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/02/2024, 07:33

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General

  • Target

    408871cda64251d42d61ec6baef1addfee6382b71af0da6f0b0ff79b913b5e23.exe

  • Size

    26KB

  • MD5

    cf93f5778c19061a406b985e41051cc5

  • SHA1

    40e5827175516cdb8ef0a692ecf188f424b4d351

  • SHA256

    408871cda64251d42d61ec6baef1addfee6382b71af0da6f0b0ff79b913b5e23

  • SHA512

    8e3abaec148c04a8ebfeaf144cd8ec8e87a421eb7cdd0f29d92569d1673e608655608fd0b8684baf36771f3e6be1690711d4495a51ca61a2caa6763cd15a1459

  • SSDEEP

    384:5YenjLLAps4T5lBavzb/xlhKOVp91QIb5hxDGs:4OElB6sc9GIbXxDH

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 (156) 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\408871cda64251d42d61ec6baef1addfee6382b71af0da6f0b0ff79b913b5e23.exe
    "C:\Users\Admin\AppData\Local\Temp\408871cda64251d42d61ec6baef1addfee6382b71af0da6f0b0ff79b913b5e23.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:396
    • 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:4700
      • 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:4552

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\408871cda64251d42d61ec6baef1addfee6382b71af0da6f0b0ff79b913b5e23.exe.log
    Filesize

    226B

    MD5

    28d7fcc2b910da5e67ebb99451a5f598

    SHA1

    a5bf77a53eda1208f4f37d09d82da0b9915a6747

    SHA256

    2391511d0a66ed9f84ae54254f51c09e43be01ad685db80da3201ec880abd49c

    SHA512

    2d8eb65cbf04ca506f4ef3b9ae13ccf05ebefab702269ba70ffd1ce9e6c615db0a3ee3ac0e81a06f546fc3250b7b76155dd51241c41b507a441b658c8e761df6

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  • C:\Users\Admin\AppData\Roaming\ExpandUnlock.xlsx
    Filesize

    1B

    MD5

    d1457b72c3fb323a2671125aef3eab5d

    SHA1

    5bab61eb53176449e25c2c82f172b82cb13ffb9d

    SHA256

    8a8de823d5ed3e12746a62ef169bcf372be0ca44f0a1236abc35df05d96928e1

    SHA512

    ca63c07ad35d8c9fb0c92d6146759b122d4ec5d3f67ebe2f30ddb69f9e6c9fd3bf31a5e408b08f1d4d9cd68120cced9e57f010bef3cde97653fed5470da7d1a0

    Download Submit

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

    26KB

    MD5

    cf93f5778c19061a406b985e41051cc5

    SHA1

    40e5827175516cdb8ef0a692ecf188f424b4d351

    SHA256

    408871cda64251d42d61ec6baef1addfee6382b71af0da6f0b0ff79b913b5e23

    SHA512

    8e3abaec148c04a8ebfeaf144cd8ec8e87a421eb7cdd0f29d92569d1673e608655608fd0b8684baf36771f3e6be1690711d4495a51ca61a2caa6763cd15a1459

    Download Submit

  • memory/396-0-0x00000000001B0000-0x00000000001BC000-memory.dmp

    Filesize

    48KB

    Download

  • memory/396-1-0x00007FFF433A0000-0x00007FFF43E61000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/396-14-0x00007FFF433A0000-0x00007FFF43E61000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/4700-15-0x00007FFF433A0000-0x00007FFF43E61000-memory.dmp

    Filesize

    10.8MB

    Download

  • memory/4700-1080-0x00007FFF433A0000-0x00007FFF43E61000-memory.dmp

    Filesize

    10.8MB

    Download