chaos | e4afe033561fe5bc752c5df8698c103ad815b61162aabe66c2d1c4df179662a6

Analysis

max time kernel
94s
max time network
99s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
31-12-2024 10:05

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General

Target

2024-12-31_982205e6e14967f94ae81e43e212a269_wannacry.exe
Size

198KB
MD5

982205e6e14967f94ae81e43e212a269
SHA1

430cbbe633775c0615e25cbff99bcc8cd8bc9f9c
SHA256

e4afe033561fe5bc752c5df8698c103ad815b61162aabe66c2d1c4df179662a6
SHA512

634c8284743a0efc992ab130df7129ff7549f09cb92935c86b0af481dfbdc47df0e627d3c530a0491428700d0dc92723651223517b4732b8b08930cf4535aa7b
SSDEEP

3072:doojKRmr9PZS/+Xrl1VrHQW6CURgeXd0z7bLvgQMFLesUDjzCKCMlA4tIrZJVrSW:Nr9PLTQDNYr5XO6A4tIrRSc1

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/1296-1-0x0000000000D40000-0x0000000000D78000-memory.dmp	family_chaos
behavioral2/files/0x000300000001e747-6.dat	family_chaos

Chaos family
chaos

Checks computer location settings 2 TTPs 2 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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	2024-12-31_982205e6e14967f94ae81e43e212a269_wannacry.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	svchost.exe

Drops startup file 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.url	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
864	svchost.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

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\5feya40fy.jpg"	svchost.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000_Classes\Local Settings	svchost.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
864	svchost.exe

Suspicious behavior: EnumeratesProcesses 53 IoCs

pid	Process
1296	2024-12-31_982205e6e14967f94ae81e43e212a269_wannacry.exe
1296	2024-12-31_982205e6e14967f94ae81e43e212a269_wannacry.exe
1296	2024-12-31_982205e6e14967f94ae81e43e212a269_wannacry.exe
1296	2024-12-31_982205e6e14967f94ae81e43e212a269_wannacry.exe
1296	2024-12-31_982205e6e14967f94ae81e43e212a269_wannacry.exe
1296	2024-12-31_982205e6e14967f94ae81e43e212a269_wannacry.exe
1296	2024-12-31_982205e6e14967f94ae81e43e212a269_wannacry.exe
1296	2024-12-31_982205e6e14967f94ae81e43e212a269_wannacry.exe
1296	2024-12-31_982205e6e14967f94ae81e43e212a269_wannacry.exe
1296	2024-12-31_982205e6e14967f94ae81e43e212a269_wannacry.exe
1296	2024-12-31_982205e6e14967f94ae81e43e212a269_wannacry.exe
1296	2024-12-31_982205e6e14967f94ae81e43e212a269_wannacry.exe
1296	2024-12-31_982205e6e14967f94ae81e43e212a269_wannacry.exe
1296	2024-12-31_982205e6e14967f94ae81e43e212a269_wannacry.exe
1296	2024-12-31_982205e6e14967f94ae81e43e212a269_wannacry.exe
1296	2024-12-31_982205e6e14967f94ae81e43e212a269_wannacry.exe
1296	2024-12-31_982205e6e14967f94ae81e43e212a269_wannacry.exe
1296	2024-12-31_982205e6e14967f94ae81e43e212a269_wannacry.exe
1296	2024-12-31_982205e6e14967f94ae81e43e212a269_wannacry.exe
1296	2024-12-31_982205e6e14967f94ae81e43e212a269_wannacry.exe
1296	2024-12-31_982205e6e14967f94ae81e43e212a269_wannacry.exe
1296	2024-12-31_982205e6e14967f94ae81e43e212a269_wannacry.exe
1296	2024-12-31_982205e6e14967f94ae81e43e212a269_wannacry.exe
1296	2024-12-31_982205e6e14967f94ae81e43e212a269_wannacry.exe
1296	2024-12-31_982205e6e14967f94ae81e43e212a269_wannacry.exe
864	svchost.exe
864	svchost.exe
864	svchost.exe
864	svchost.exe
864	svchost.exe
864	svchost.exe
864	svchost.exe
864	svchost.exe
864	svchost.exe
864	svchost.exe
864	svchost.exe
864	svchost.exe
864	svchost.exe
864	svchost.exe
864	svchost.exe
864	svchost.exe
864	svchost.exe
864	svchost.exe
864	svchost.exe
864	svchost.exe
864	svchost.exe
864	svchost.exe
864	svchost.exe
864	svchost.exe
864	svchost.exe
864	svchost.exe
864	svchost.exe
864	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1296	2024-12-31_982205e6e14967f94ae81e43e212a269_wannacry.exe
Token: SeDebugPrivilege	864	svchost.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1296 wrote to memory of 864	1296	2024-12-31_982205e6e14967f94ae81e43e212a269_wannacry.exe	84
PID 1296 wrote to memory of 864	1296	2024-12-31_982205e6e14967f94ae81e43e212a269_wannacry.exe	84
PID 864 wrote to memory of 1004	864	svchost.exe	90
PID 864 wrote to memory of 1004	864	svchost.exe	90

C:\Users\Admin\AppData\Local\Temp\2024-12-31_982205e6e14967f94ae81e43e212a269_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-31_982205e6e14967f94ae81e43e212a269_wannacry.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1296
- 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
  - Sets desktop wallpaper using registry
  - Modifies registry class
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:864
- - C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\Beni Oku.txt
    3⤵
    PID:1004

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

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Templates\LiveContent\16\Managed\Word Document Building Blocks\1033\Beni Oku.txt

Filesize
543B

MD5
332815cac9d93b86adaf6104ca6d9687

SHA1
6f6c5f5e994ae85890627c7893a53423d0b74c95

SHA256
49af03004f75fc1a1fd95415f7d21ed05ff6b90d786bdcca0256289dbf10a263

SHA512
c991517e7c58c430e0488b6325584164086aaa1478c3cce4dffa7fca8fb09e9113a3b33948e99364cee02752b90a899c289f2615572e8d6ab9834c0a8fe14d27

Download Submit
C:\Users\Admin\AppData\Roaming\svchost.exe

Filesize
198KB

MD5
982205e6e14967f94ae81e43e212a269

SHA1
430cbbe633775c0615e25cbff99bcc8cd8bc9f9c

SHA256
e4afe033561fe5bc752c5df8698c103ad815b61162aabe66c2d1c4df179662a6

SHA512
634c8284743a0efc992ab130df7129ff7549f09cb92935c86b0af481dfbdc47df0e627d3c530a0491428700d0dc92723651223517b4732b8b08930cf4535aa7b

Download Submit
memory/864-14-0x00007FF998060000-0x00007FF998B21000-memory.dmp

Filesize
10.8MB

Download
memory/864-49-0x00007FF998060000-0x00007FF998B21000-memory.dmp

Filesize
10.8MB

Download
memory/1296-0-0x00007FF998063000-0x00007FF998065000-memory.dmp

Filesize
8KB

Download
memory/1296-1-0x0000000000D40000-0x0000000000D78000-memory.dmp

Filesize
224KB

Download