chaos | 41dc37e9a04507ff7f42b3fef05dac411c28b2016779461c5405b219d44527ca

Analysis

max time kernel
147s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20250217-en
resource tags

arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
submitted
23-02-2025 18:24

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General

Target

2025-02-23_58647f59cddd222604d96d41f3e09e5b_wannacry.exe
Size

574KB
MD5

58647f59cddd222604d96d41f3e09e5b
SHA1

f8adc427de6c3eb4d271a0f72d07fd8e193793ba
SHA256

41dc37e9a04507ff7f42b3fef05dac411c28b2016779461c5405b219d44527ca
SHA512

eb0df23fdddcdb7adc625730fae0793fb9b610157589a2d8502e8bcd2bb280ccb7dffd50e5c68a146a353d7fe171f8bd37dc9e838d9f17d251dd4b9d26abbf80
SSDEEP

12288:YFghl4t7gdFiKhZgiUxheMYKlApW7Vq2NAhLpq5lZc1D:YF0ZniBsvVdd1

Score

10^/10

chaos ransomware spyware stealer

Malware Config

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 2 IoCs

resource	yara_rule
behavioral2/memory/2380-1-0x0000000000B40000-0x0000000000BD4000-memory.dmp	family_chaos
behavioral2/files/0x000700000001da46-6.dat	family_chaos

Chaos family
chaos

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2278412438-3475196406-3686434223-1000\Control Panel\International\Geo\Nation	2025-02-23_58647f59cddd222604d96d41f3e09e5b_wannacry.exe

Drops startup file 3 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Awhman	Footsex.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Footsex.url	Footsex.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini	Footsex.exe

Executes dropped EXE 1 IoCs

pid	Process
2164	Footsex.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Drops desktop.ini file(s) 34 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Contacts\desktop.ini	Footsex.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	Footsex.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	Footsex.exe
File opened for modification	C:\Users\Admin\Downloads\desktop.ini	Footsex.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini	Footsex.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini	Footsex.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	Footsex.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\AccountPictures\desktop.ini	Footsex.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini	Footsex.exe
File opened for modification	C:\Users\Admin\Favorites\Links\desktop.ini	Footsex.exe
File opened for modification	C:\Users\Admin\Links\desktop.ini	Footsex.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	Footsex.exe
File opened for modification	C:\Users\Admin\Pictures\Saved Pictures\desktop.ini	Footsex.exe
File opened for modification	C:\Users\Admin\Searches\desktop.ini	Footsex.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini	Footsex.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-2278412438-3475196406-3686434223-1000\desktop.ini	Footsex.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini	Footsex.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\desktop.ini	Footsex.exe
File opened for modification	C:\Users\Admin\Videos\desktop.ini	Footsex.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\desktop.ini	Footsex.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini	Footsex.exe
File opened for modification	C:\Users\Admin\Favorites\desktop.ini	Footsex.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini	Footsex.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini	Footsex.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	Footsex.exe
File opened for modification	C:\Users\Admin\OneDrive\desktop.ini	Footsex.exe
File opened for modification	C:\Users\Admin\Saved Games\desktop.ini	Footsex.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	Footsex.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	Footsex.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	Footsex.exe
File opened for modification	C:\Users\Admin\Pictures\Camera Roll\desktop.ini	Footsex.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini	Footsex.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\desktop.ini	Footsex.exe
File opened for modification	C:\Users\Public\Documents\desktop.ini	Footsex.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2278412438-3475196406-3686434223-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\p4njlj4br.jpg"	Footsex.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2278412438-3475196406-3686434223-1000_Classes\Local Settings	Footsex.exe
Key created	\REGISTRY\USER\S-1-5-21-2278412438-3475196406-3686434223-1000_Classes\Local Settings	OpenWith.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2164	Footsex.exe

Suspicious behavior: EnumeratesProcesses 46 IoCs

pid	Process
2380	2025-02-23_58647f59cddd222604d96d41f3e09e5b_wannacry.exe
2380	2025-02-23_58647f59cddd222604d96d41f3e09e5b_wannacry.exe
2380	2025-02-23_58647f59cddd222604d96d41f3e09e5b_wannacry.exe
2380	2025-02-23_58647f59cddd222604d96d41f3e09e5b_wannacry.exe
2380	2025-02-23_58647f59cddd222604d96d41f3e09e5b_wannacry.exe
2380	2025-02-23_58647f59cddd222604d96d41f3e09e5b_wannacry.exe
2380	2025-02-23_58647f59cddd222604d96d41f3e09e5b_wannacry.exe
2380	2025-02-23_58647f59cddd222604d96d41f3e09e5b_wannacry.exe
2380	2025-02-23_58647f59cddd222604d96d41f3e09e5b_wannacry.exe
2380	2025-02-23_58647f59cddd222604d96d41f3e09e5b_wannacry.exe
2380	2025-02-23_58647f59cddd222604d96d41f3e09e5b_wannacry.exe
2380	2025-02-23_58647f59cddd222604d96d41f3e09e5b_wannacry.exe
2380	2025-02-23_58647f59cddd222604d96d41f3e09e5b_wannacry.exe
2380	2025-02-23_58647f59cddd222604d96d41f3e09e5b_wannacry.exe
2380	2025-02-23_58647f59cddd222604d96d41f3e09e5b_wannacry.exe
2380	2025-02-23_58647f59cddd222604d96d41f3e09e5b_wannacry.exe
2380	2025-02-23_58647f59cddd222604d96d41f3e09e5b_wannacry.exe
2380	2025-02-23_58647f59cddd222604d96d41f3e09e5b_wannacry.exe
2380	2025-02-23_58647f59cddd222604d96d41f3e09e5b_wannacry.exe
2380	2025-02-23_58647f59cddd222604d96d41f3e09e5b_wannacry.exe
2380	2025-02-23_58647f59cddd222604d96d41f3e09e5b_wannacry.exe
2380	2025-02-23_58647f59cddd222604d96d41f3e09e5b_wannacry.exe
2380	2025-02-23_58647f59cddd222604d96d41f3e09e5b_wannacry.exe
2380	2025-02-23_58647f59cddd222604d96d41f3e09e5b_wannacry.exe
2164	Footsex.exe
2164	Footsex.exe
2164	Footsex.exe
2164	Footsex.exe
2164	Footsex.exe
2164	Footsex.exe
2164	Footsex.exe
2164	Footsex.exe
2164	Footsex.exe
2164	Footsex.exe
2164	Footsex.exe
2164	Footsex.exe
2164	Footsex.exe
2164	Footsex.exe
2164	Footsex.exe
2164	Footsex.exe
2164	Footsex.exe
2164	Footsex.exe
2164	Footsex.exe
2164	Footsex.exe
2164	Footsex.exe
2164	Footsex.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2380	2025-02-23_58647f59cddd222604d96d41f3e09e5b_wannacry.exe
Token: SeDebugPrivilege	2164	Footsex.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5112	OpenWith.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 2164	2380	2025-02-23_58647f59cddd222604d96d41f3e09e5b_wannacry.exe	86
PID 2380 wrote to memory of 2164	2380	2025-02-23_58647f59cddd222604d96d41f3e09e5b_wannacry.exe	86

C:\Users\Admin\AppData\Local\Temp\2025-02-23_58647f59cddd222604d96d41f3e09e5b_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-23_58647f59cddd222604d96d41f3e09e5b_wannacry.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Users\Admin\AppData\Roaming\Footsex.exe
  "C:\Users\Admin\AppData\Roaming\Footsex.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Drops desktop.ini file(s)
  - Sets desktop wallpaper using registry
  - Modifies registry class
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2164

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:5112

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Defacement

T1491

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Footsex.exe

Filesize
574KB

MD5
58647f59cddd222604d96d41f3e09e5b

SHA1
f8adc427de6c3eb4d271a0f72d07fd8e193793ba

SHA256
41dc37e9a04507ff7f42b3fef05dac411c28b2016779461c5405b219d44527ca

SHA512
eb0df23fdddcdb7adc625730fae0793fb9b610157589a2d8502e8bcd2bb280ccb7dffd50e5c68a146a353d7fe171f8bd37dc9e838d9f17d251dd4b9d26abbf80

Download Submit
C:\Users\Admin\Documents\Awhman

Filesize
1KB

MD5
e054c59d8bdfe2217d55974dc1ac3494

SHA1
908850e8bc148c92536aa22a30af3be8f60a19dc

SHA256
981181c4266fcaf965925c02e6cc8cff433389a39fc6dd4a17cd3d25e10f5e07

SHA512
f11187ed9a85e9b2bf39e6533b6bf97148b2363aba272162f4a4719e315f16009884fa35add476a4b3755dcee73bc6a97be2bc02a2ed507d09c5d26292801b66

Download Submit
memory/2164-14-0x00007FFABA9A0000-0x00007FFABB461000-memory.dmp

Filesize
10.8MB

Download
memory/2164-24-0x00007FFABA9A0000-0x00007FFABB461000-memory.dmp

Filesize
10.8MB

Download
memory/2164-476-0x00007FFABA9A0000-0x00007FFABB461000-memory.dmp

Filesize
10.8MB

Download
memory/2164-477-0x00007FFABA9A0000-0x00007FFABB461000-memory.dmp

Filesize
10.8MB

Download
memory/2380-0-0x00007FFABA9A3000-0x00007FFABA9A5000-memory.dmp

Filesize
8KB

Download
memory/2380-1-0x0000000000B40000-0x0000000000BD4000-memory.dmp

Filesize
592KB

Download