chaos | 7fd0f9fc2fc543790514ee2ad137d546465c089aaef1e2c440a2b4cc3a10997c

General

Target

REDLINE_STEALER.exe
Size

289KB
MD5

4a334b29a2f5f4caa8b69efe735b99c3
SHA1

9f43e471fd74ce2f1c41316d0cb73ca54cc6b629
SHA256

7fd0f9fc2fc543790514ee2ad137d546465c089aaef1e2c440a2b4cc3a10997c
SHA512

81a302429fc68a7f0650a48c1d6b446217b4354d46ebe3e44f4e70e849fec04ff41fefa366e1301dfd3cd8453c27a08a6b431022b180a1cd88906915c650e085
SSDEEP

6144:Z6r92dScRiDH6b/e8/8li3GXuE3y7ddtgx:BSSiDHe/d/8li3G+Ei7ddte

Score

10^/10

chaos defense_evasion evasion execution impact ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\Documents\191719.README.txt

Ransom Note

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 $15. Payment can be made in Bitcoin only. In the event of non-payment, all files, passwords, and credit cards for all your accounts will be published online 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. Contact us before paying to ensure decryption Telegram:t.me/Anon3621 Payment informationAmount: 0.000215749 BTC Bitcoin Address:3QEZdpib6bpy6443TJ6Sev9a1LzuKvwsYm

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2600-1-0x0000000000850000-0x000000000089E000-memory.dmp	family_chaos
C:\Users\Admin\AppData\Roaming\svchost.exe	family_chaos

Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware defense_evasion impact execution

File Deletion
T1070.004

Inhibit System Recovery
T1490

Windows Management Instrumentation
T1047
Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
ransomware evasion

Inhibit System Recovery
T1490

Processes:

bcdedit.exebcdedit.exe

pid process

2800 bcdedit.exe
2252 bcdedit.exe
Deletes backup catalog 3 TTPs 1 IoCs
Uses wbadmin.exe to inhibit system recovery.
ransomware

Command and Scripting Interpreter
T1059

File Deletion
T1070.004

Inhibit System Recovery
T1490

Processes:

wbadmin.exe

pid process

1712 wbadmin.exe

pid	process
2800	bcdedit.exe
2252	bcdedit.exe

pid	process
1712	wbadmin.exe

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

Processes:

REDLINE_STEALER.exesvchost.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	REDLINE_STEALER.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	svchost.exe

Drops startup file 3 IoCs

Processes:

svchost.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini	svchost.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\191719.README.txt	svchost.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.url	svchost.exe

Executes dropped EXE 1 IoCs

Processes:

svchost.exe

pid process

4028 svchost.exe
Reads user/profile data of web browsers 2 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

pid	process
4028	svchost.exe

Drops desktop.ini file(s) 34 IoCs

Processes:

svchost.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Documents\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Pictures\Camera Roll\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Favorites\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Searches\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	svchost.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-4124900551-4068476067-3491212533-1000\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Contacts\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Pictures\Saved Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Saved Games\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Favorites\Links\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\OneDrive\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\AccountPictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Links\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Downloads\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Videos\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\desktop.ini	svchost.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\0lo0wotuk.jpg"	svchost.exe

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

System Information Discovery
T1082

Checks SCSI registry key(s) 3 TTPs 4 IoCs

SCSI information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

vds.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_QEMU&PROD_QEMU_DVD-ROM\4&215468A5&0&010000	vds.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_QEMU&Prod_QEMU_DVD-ROM\4&215468a5&0&010000\FriendlyName	vds.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_DADY&PROD_HARDDISK\4&215468A5&0&000000	vds.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName	vds.exe

Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
ransomware

File Deletion
T1070.004

Inhibit System Recovery
T1490

Direct Volume Access
T1006

Processes:

vssadmin.exe

pid process

3376 vssadmin.exe
Modifies registry class 1 IoCs

Processes:

svchost.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000_Classes\Local Settings svchost.exe
Opens file in notepad (likely ransom note) 1 IoCs
ransomware

Processes:

NOTEPAD.EXE

pid process

3220 NOTEPAD.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

svchost.exe

pid process

4028 svchost.exe

pid	process
3376	vssadmin.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000_Classes\Local Settings	svchost.exe

pid	process
3220	NOTEPAD.EXE

pid	process
4028	svchost.exe

Suspicious behavior: EnumeratesProcesses 50 IoCs

Processes:

REDLINE_STEALER.exesvchost.exe

pid	process
2600	REDLINE_STEALER.exe
2600	REDLINE_STEALER.exe
2600	REDLINE_STEALER.exe
2600	REDLINE_STEALER.exe
2600	REDLINE_STEALER.exe
2600	REDLINE_STEALER.exe
2600	REDLINE_STEALER.exe
2600	REDLINE_STEALER.exe
2600	REDLINE_STEALER.exe
2600	REDLINE_STEALER.exe
2600	REDLINE_STEALER.exe
2600	REDLINE_STEALER.exe
2600	REDLINE_STEALER.exe
2600	REDLINE_STEALER.exe
2600	REDLINE_STEALER.exe
2600	REDLINE_STEALER.exe
2600	REDLINE_STEALER.exe
2600	REDLINE_STEALER.exe
2600	REDLINE_STEALER.exe
2600	REDLINE_STEALER.exe
2600	REDLINE_STEALER.exe
2600	REDLINE_STEALER.exe
2600	REDLINE_STEALER.exe
2600	REDLINE_STEALER.exe
2600	REDLINE_STEALER.exe
2600	REDLINE_STEALER.exe
4028	svchost.exe
4028	svchost.exe
4028	svchost.exe
4028	svchost.exe
4028	svchost.exe
4028	svchost.exe
4028	svchost.exe
4028	svchost.exe
4028	svchost.exe
4028	svchost.exe
4028	svchost.exe
4028	svchost.exe
4028	svchost.exe
4028	svchost.exe
4028	svchost.exe
4028	svchost.exe
4028	svchost.exe
4028	svchost.exe
4028	svchost.exe
4028	svchost.exe
4028	svchost.exe
4028	svchost.exe
4028	svchost.exe
4028	svchost.exe

Suspicious use of AdjustPrivilegeToken 50 IoCs

Processes:

REDLINE_STEALER.exesvchost.exevssvc.exeWMIC.exewbengine.exe

description	pid	process
Token: SeDebugPrivilege	2600	REDLINE_STEALER.exe
Token: SeDebugPrivilege	4028	svchost.exe
Token: SeBackupPrivilege	4084	vssvc.exe
Token: SeRestorePrivilege	4084	vssvc.exe
Token: SeAuditPrivilege	4084	vssvc.exe
Token: SeIncreaseQuotaPrivilege	3492	WMIC.exe
Token: SeSecurityPrivilege	3492	WMIC.exe
Token: SeTakeOwnershipPrivilege	3492	WMIC.exe
Token: SeLoadDriverPrivilege	3492	WMIC.exe
Token: SeSystemProfilePrivilege	3492	WMIC.exe
Token: SeSystemtimePrivilege	3492	WMIC.exe
Token: SeProfSingleProcessPrivilege	3492	WMIC.exe
Token: SeIncBasePriorityPrivilege	3492	WMIC.exe
Token: SeCreatePagefilePrivilege	3492	WMIC.exe
Token: SeBackupPrivilege	3492	WMIC.exe
Token: SeRestorePrivilege	3492	WMIC.exe
Token: SeShutdownPrivilege	3492	WMIC.exe
Token: SeDebugPrivilege	3492	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3492	WMIC.exe
Token: SeRemoteShutdownPrivilege	3492	WMIC.exe
Token: SeUndockPrivilege	3492	WMIC.exe
Token: SeManageVolumePrivilege	3492	WMIC.exe
Token: 33	3492	WMIC.exe
Token: 34	3492	WMIC.exe
Token: 35	3492	WMIC.exe
Token: 36	3492	WMIC.exe
Token: SeIncreaseQuotaPrivilege	3492	WMIC.exe
Token: SeSecurityPrivilege	3492	WMIC.exe
Token: SeTakeOwnershipPrivilege	3492	WMIC.exe
Token: SeLoadDriverPrivilege	3492	WMIC.exe
Token: SeSystemProfilePrivilege	3492	WMIC.exe
Token: SeSystemtimePrivilege	3492	WMIC.exe
Token: SeProfSingleProcessPrivilege	3492	WMIC.exe
Token: SeIncBasePriorityPrivilege	3492	WMIC.exe
Token: SeCreatePagefilePrivilege	3492	WMIC.exe
Token: SeBackupPrivilege	3492	WMIC.exe
Token: SeRestorePrivilege	3492	WMIC.exe
Token: SeShutdownPrivilege	3492	WMIC.exe
Token: SeDebugPrivilege	3492	WMIC.exe
Token: SeSystemEnvironmentPrivilege	3492	WMIC.exe
Token: SeRemoteShutdownPrivilege	3492	WMIC.exe
Token: SeUndockPrivilege	3492	WMIC.exe
Token: SeManageVolumePrivilege	3492	WMIC.exe
Token: 33	3492	WMIC.exe
Token: 34	3492	WMIC.exe
Token: 35	3492	WMIC.exe
Token: 36	3492	WMIC.exe
Token: SeBackupPrivilege	2452	wbengine.exe
Token: SeRestorePrivilege	2452	wbengine.exe
Token: SeSecurityPrivilege	2452	wbengine.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

NOTEPAD.EXE

pid process

3220 NOTEPAD.EXE

pid	process
3220	NOTEPAD.EXE

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

REDLINE_STEALER.exesvchost.execmd.execmd.execmd.exe

description	pid	process	target process
PID 2600 wrote to memory of 4028	2600	REDLINE_STEALER.exe	svchost.exe
PID 2600 wrote to memory of 4028	2600	REDLINE_STEALER.exe	svchost.exe
PID 4028 wrote to memory of 4672	4028	svchost.exe	cmd.exe
PID 4028 wrote to memory of 4672	4028	svchost.exe	cmd.exe
PID 4672 wrote to memory of 3376	4672	cmd.exe	vssadmin.exe
PID 4672 wrote to memory of 3376	4672	cmd.exe	vssadmin.exe
PID 4672 wrote to memory of 3492	4672	cmd.exe	WMIC.exe
PID 4672 wrote to memory of 3492	4672	cmd.exe	WMIC.exe
PID 4028 wrote to memory of 4496	4028	svchost.exe	cmd.exe
PID 4028 wrote to memory of 4496	4028	svchost.exe	cmd.exe
PID 4496 wrote to memory of 2800	4496	cmd.exe	bcdedit.exe
PID 4496 wrote to memory of 2800	4496	cmd.exe	bcdedit.exe
PID 4496 wrote to memory of 2252	4496	cmd.exe	bcdedit.exe
PID 4496 wrote to memory of 2252	4496	cmd.exe	bcdedit.exe
PID 4028 wrote to memory of 4484	4028	svchost.exe	cmd.exe
PID 4028 wrote to memory of 4484	4028	svchost.exe	cmd.exe
PID 4484 wrote to memory of 1712	4484	cmd.exe	wbadmin.exe
PID 4484 wrote to memory of 1712	4484	cmd.exe	wbadmin.exe
PID 4028 wrote to memory of 3220	4028	svchost.exe	NOTEPAD.EXE
PID 4028 wrote to memory of 3220	4028	svchost.exe	NOTEPAD.EXE

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\REDLINE_STEALER.exe
"C:\Users\Admin\AppData\Local\Temp\REDLINE_STEALER.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2600

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)
- Sets desktop wallpaper using registry
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4028

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete
3⤵
- Suspicious use of WriteProcessMemory
PID:4672

C:\Windows\system32\vssadmin.exe
vssadmin delete shadows /all /quiet
4⤵
- Interacts with shadow copies
PID:3376

C:\Windows\System32\Wbem\WMIC.exe
wmic shadowcopy delete
4⤵
- Suspicious use of AdjustPrivilegeToken
PID:3492

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no
3⤵
- Suspicious use of WriteProcessMemory
PID:4496

C:\Windows\system32\bcdedit.exe
bcdedit /set {default} bootstatuspolicy ignoreallfailures
4⤵
- Modifies boot configuration data using bcdedit
PID:2800

C:\Windows\system32\bcdedit.exe
bcdedit /set {default} recoveryenabled no
4⤵
- Modifies boot configuration data using bcdedit
PID:2252

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
3⤵
- Suspicious use of WriteProcessMemory
PID:4484

C:\Windows\system32\wbadmin.exe
wbadmin delete catalog -quiet
4⤵
- Deletes backup catalog
PID:1712

C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\191719.README.txt
3⤵
- Opens file in notepad (likely ransom note)
- Suspicious use of FindShellTrayWindow
PID:3220

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4084

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2452

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:2804

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
- Checks SCSI registry key(s)
PID:3688

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Windows Management Instrumentation

1

T1047

Command and Scripting Interpreter

1

T1059

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

3

T1070

File Deletion

3

T1070.004

Modify Registry

1

T1112

Direct Volume Access

1

T1006

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

3

T1012

System Information Discovery

3

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Inhibit System Recovery

4

T1490

Defacement

1

T1491

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Roaming\svchost.exe
Filesize
289KB

MD5
4a334b29a2f5f4caa8b69efe735b99c3

SHA1
9f43e471fd74ce2f1c41316d0cb73ca54cc6b629

SHA256
7fd0f9fc2fc543790514ee2ad137d546465c089aaef1e2c440a2b4cc3a10997c

SHA512
81a302429fc68a7f0650a48c1d6b446217b4354d46ebe3e44f4e70e849fec04ff41fefa366e1301dfd3cd8453c27a08a6b431022b180a1cd88906915c650e085

Download Submit
C:\Users\Admin\Documents\191719.README.txt
Filesize
914B

MD5
0fda88ded6bfe7c5aa225a0bfedd8b7a

SHA1
aef0dfa54038350a10294b26f12f3d30b898a06e

SHA256
e6d0b3f7fcc238463eca03e6c901c1444ae57d6bedfcac6f7c6d6d649afa1815

SHA512
f67cc7a8b47a2c5cb278c111760b44b19058b4c414b3afeb714b5be76c2c5dcc832d6514077f24d05653037c76272db86d806e95305b47067536092055d0abb8

Download Submit
memory/2600-0-0x00007FFDE63E3000-0x00007FFDE63E5000-memory.dmp

Filesize
8KB

Download
memory/2600-1-0x0000000000850000-0x000000000089E000-memory.dmp

Filesize
312KB

Download
memory/4028-14-0x00007FFDE63E0000-0x00007FFDE6EA1000-memory.dmp

Filesize
10.8MB

Download
memory/4028-448-0x00007FFDE63E0000-0x00007FFDE6EA1000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads