chaos | b1968b4be3f82fc26b1e2decdcb8f532915aed847603aeeaf254722bdd411d26

Resubmissions

16-03-2024 17:17

240316-vtswysfd2y 10

16-03-2024 15:31

240316-syg9xafg39 10

15-03-2024 08:15

240315-j5rmgsbg5z 10

Analysis

max time kernel
153s
max time network
129s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
15-03-2024 08:15

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General

Target

240ac12f9c13ef1fdfbc77e16978f0423a41a3cc1c3dcb8786ba8e7672811f0b.exe
Size

24KB
MD5

63d533fb228e802c9c774ef75ff043fa
SHA1

16515f05ed0ae98bcbd3de8290704b516bc58080
SHA256

240ac12f9c13ef1fdfbc77e16978f0423a41a3cc1c3dcb8786ba8e7672811f0b
SHA512

9f428e10f018e1e65dc17b65937505a30932a74285aa23df4a8e875ba47ec60510cfa693a7d44e8ec81c6e25aa91c4a462b67902b0fe0190641d5b149d9ff4b1
SSDEEP

384:F3MLWHn3kIcuOxPRe2zpOUsB6vSkaJZAr91Cz+mLRsOeN:1n3kIcPfpbear9i+BOeN

Score

10^/10

chaos evasion ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\read_it.txt

Ransom Note

We are sorry to inform you that a Ransomware Virus has taken control of your computer. The important files and folders on your computer have been encrypted with a military grade encryption algorithm. Your documents, videos, images and other forms of data are now inaccessible and completely locked, and cannot be unlocked without the sole decryption key, in which we are the ONLY ones in possession of this key. This key is currently being stored on a remote server. To acquire this key and have all files restored, transfer the amount of 500 USD in the cryptocurrency BITCOIN to the below specified bitcoin wallet address before the time runs out. Once you have read this you now have 36 hours until your files are lost forever. If you fail to take action within this time window, the decryption key will be destroyed and access to your files will be permanently lost. If you are not familiar with cryptocurrency and bitcoin, just do a google search, visit bitcoin.org, go on your mobile to Cash App, or pretty much just ask someone and most likely they can explain it. Once again, 500 USD in the form of Bitcoin to this wallet address bc1q8wqyacjzzvrn57d2g7aj35lnr5r8fqv0dn0394 The second the transaction verifies another text file will appear on your desktop with the website to get your key, and the simple instructions on how to use it to get your files back. 36 hours starts now, we suggest you do not waste time. For any reason you should need customer service, email xeqtr.4@proton.me

Emails

xeqtr.4@proton.me

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 3 IoCs

Processes:

resource	yara_rule
behavioral5/memory/2556-0-0x00000000011C0000-0x00000000011CC000-memory.dmp	family_chaos
C:\Users\Admin\AppData\Roaming\svchosts.exe	family_chaos
behavioral5/memory/2760-7-0x0000000001030000-0x000000000103C000-memory.dmp	family_chaos

Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1070.004

Inhibit System Recovery
T1490
Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
ransomware evasion

Inhibit System Recovery
T1490

Processes:

bcdedit.exebcdedit.exe

pid process

2868 bcdedit.exe
1884 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

3020 wbadmin.exe

pid	process
2868	bcdedit.exe
1884	bcdedit.exe

pid	process
3020	wbadmin.exe

Drops startup file 3 IoCs

Processes:

svchosts.exe

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

Executes dropped EXE 1 IoCs

Processes:

svchosts.exe

pid process

2760 svchosts.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
2760	svchosts.exe

Drops desktop.ini file(s) 34 IoCs

Processes:

svchosts.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini	svchosts.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	svchosts.exe
File opened for modification	C:\Users\Admin\Saved Games\desktop.ini	svchosts.exe
File opened for modification	C:\Users\Admin\Videos\desktop.ini	svchosts.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini	svchosts.exe
File opened for modification	C:\Users\Public\Documents\desktop.ini	svchosts.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	svchosts.exe
File opened for modification	C:\Users\Public\Videos\Sample Videos\desktop.ini	svchosts.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	svchosts.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini	svchosts.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini	svchosts.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini	svchosts.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini	svchosts.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini	svchosts.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	svchosts.exe
File opened for modification	C:\Users\Admin\Favorites\Links\desktop.ini	svchosts.exe
File opened for modification	C:\Users\Admin\Searches\desktop.ini	svchosts.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	svchosts.exe
File opened for modification	C:\Users\Public\Music\Sample Music\desktop.ini	svchosts.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	svchosts.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini	svchosts.exe
File opened for modification	C:\Users\Public\Pictures\Sample Pictures\desktop.ini	svchosts.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini	svchosts.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini	svchosts.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini	svchosts.exe
File opened for modification	C:\Users\Admin\Links\desktop.ini	svchosts.exe
File opened for modification	C:\Users\Admin\Downloads\desktop.ini	svchosts.exe
File opened for modification	C:\Users\Admin\Favorites\desktop.ini	svchosts.exe
File opened for modification	C:\Users\Admin\Favorites\Links for United States\desktop.ini	svchosts.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini	svchosts.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	svchosts.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-2461186416-2307104501-1787948496-1000\desktop.ini	svchosts.exe
File opened for modification	C:\Users\Admin\Contacts\desktop.ini	svchosts.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	svchosts.exe

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

System Information Discovery
T1082
Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
ransomware

File Deletion
T1070.004

Inhibit System Recovery
T1490

Processes:

vssadmin.exe

pid process

792 vssadmin.exe
Opens file in notepad (likely ransom note) 1 IoCs
ransomware

Processes:

NOTEPAD.EXE

pid process

2740 NOTEPAD.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

svchosts.exe

pid process

2760 svchosts.exe

pid	process
792	vssadmin.exe

pid	process
2740	NOTEPAD.EXE

pid	process
2760	svchosts.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

240ac12f9c13ef1fdfbc77e16978f0423a41a3cc1c3dcb8786ba8e7672811f0b.exesvchosts.exe

pid	process
2556	240ac12f9c13ef1fdfbc77e16978f0423a41a3cc1c3dcb8786ba8e7672811f0b.exe
2556	240ac12f9c13ef1fdfbc77e16978f0423a41a3cc1c3dcb8786ba8e7672811f0b.exe
2556	240ac12f9c13ef1fdfbc77e16978f0423a41a3cc1c3dcb8786ba8e7672811f0b.exe
2760	svchosts.exe
2760	svchosts.exe
2760	svchosts.exe
2760	svchosts.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

240ac12f9c13ef1fdfbc77e16978f0423a41a3cc1c3dcb8786ba8e7672811f0b.exesvchosts.exevssvc.exeWMIC.exewbengine.exe

description	pid	process
Token: SeDebugPrivilege	2556	240ac12f9c13ef1fdfbc77e16978f0423a41a3cc1c3dcb8786ba8e7672811f0b.exe
Token: SeDebugPrivilege	2760	svchosts.exe
Token: SeBackupPrivilege	1864	vssvc.exe
Token: SeRestorePrivilege	1864	vssvc.exe
Token: SeAuditPrivilege	1864	vssvc.exe
Token: SeIncreaseQuotaPrivilege	2212	WMIC.exe
Token: SeSecurityPrivilege	2212	WMIC.exe
Token: SeTakeOwnershipPrivilege	2212	WMIC.exe
Token: SeLoadDriverPrivilege	2212	WMIC.exe
Token: SeSystemProfilePrivilege	2212	WMIC.exe
Token: SeSystemtimePrivilege	2212	WMIC.exe
Token: SeProfSingleProcessPrivilege	2212	WMIC.exe
Token: SeIncBasePriorityPrivilege	2212	WMIC.exe
Token: SeCreatePagefilePrivilege	2212	WMIC.exe
Token: SeBackupPrivilege	2212	WMIC.exe
Token: SeRestorePrivilege	2212	WMIC.exe
Token: SeShutdownPrivilege	2212	WMIC.exe
Token: SeDebugPrivilege	2212	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2212	WMIC.exe
Token: SeRemoteShutdownPrivilege	2212	WMIC.exe
Token: SeUndockPrivilege	2212	WMIC.exe
Token: SeManageVolumePrivilege	2212	WMIC.exe
Token: 33	2212	WMIC.exe
Token: 34	2212	WMIC.exe
Token: 35	2212	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2212	WMIC.exe
Token: SeSecurityPrivilege	2212	WMIC.exe
Token: SeTakeOwnershipPrivilege	2212	WMIC.exe
Token: SeLoadDriverPrivilege	2212	WMIC.exe
Token: SeSystemProfilePrivilege	2212	WMIC.exe
Token: SeSystemtimePrivilege	2212	WMIC.exe
Token: SeProfSingleProcessPrivilege	2212	WMIC.exe
Token: SeIncBasePriorityPrivilege	2212	WMIC.exe
Token: SeCreatePagefilePrivilege	2212	WMIC.exe
Token: SeBackupPrivilege	2212	WMIC.exe
Token: SeRestorePrivilege	2212	WMIC.exe
Token: SeShutdownPrivilege	2212	WMIC.exe
Token: SeDebugPrivilege	2212	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2212	WMIC.exe
Token: SeRemoteShutdownPrivilege	2212	WMIC.exe
Token: SeUndockPrivilege	2212	WMIC.exe
Token: SeManageVolumePrivilege	2212	WMIC.exe
Token: 33	2212	WMIC.exe
Token: 34	2212	WMIC.exe
Token: 35	2212	WMIC.exe
Token: SeBackupPrivilege	1916	wbengine.exe
Token: SeRestorePrivilege	1916	wbengine.exe
Token: SeSecurityPrivilege	1916	wbengine.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

240ac12f9c13ef1fdfbc77e16978f0423a41a3cc1c3dcb8786ba8e7672811f0b.exesvchosts.execmd.execmd.execmd.exe

description	pid	process	target process
PID 2556 wrote to memory of 2760	2556	240ac12f9c13ef1fdfbc77e16978f0423a41a3cc1c3dcb8786ba8e7672811f0b.exe	svchosts.exe
PID 2556 wrote to memory of 2760	2556	240ac12f9c13ef1fdfbc77e16978f0423a41a3cc1c3dcb8786ba8e7672811f0b.exe	svchosts.exe
PID 2556 wrote to memory of 2760	2556	240ac12f9c13ef1fdfbc77e16978f0423a41a3cc1c3dcb8786ba8e7672811f0b.exe	svchosts.exe
PID 2760 wrote to memory of 1888	2760	svchosts.exe	cmd.exe
PID 2760 wrote to memory of 1888	2760	svchosts.exe	cmd.exe
PID 2760 wrote to memory of 1888	2760	svchosts.exe	cmd.exe
PID 1888 wrote to memory of 792	1888	cmd.exe	vssadmin.exe
PID 1888 wrote to memory of 792	1888	cmd.exe	vssadmin.exe
PID 1888 wrote to memory of 792	1888	cmd.exe	vssadmin.exe
PID 1888 wrote to memory of 2212	1888	cmd.exe	WMIC.exe
PID 1888 wrote to memory of 2212	1888	cmd.exe	WMIC.exe
PID 1888 wrote to memory of 2212	1888	cmd.exe	WMIC.exe
PID 2760 wrote to memory of 2316	2760	svchosts.exe	cmd.exe
PID 2760 wrote to memory of 2316	2760	svchosts.exe	cmd.exe
PID 2760 wrote to memory of 2316	2760	svchosts.exe	cmd.exe
PID 2316 wrote to memory of 2868	2316	cmd.exe	bcdedit.exe
PID 2316 wrote to memory of 2868	2316	cmd.exe	bcdedit.exe
PID 2316 wrote to memory of 2868	2316	cmd.exe	bcdedit.exe
PID 2316 wrote to memory of 1884	2316	cmd.exe	bcdedit.exe
PID 2316 wrote to memory of 1884	2316	cmd.exe	bcdedit.exe
PID 2316 wrote to memory of 1884	2316	cmd.exe	bcdedit.exe
PID 2760 wrote to memory of 640	2760	svchosts.exe	cmd.exe
PID 2760 wrote to memory of 640	2760	svchosts.exe	cmd.exe
PID 2760 wrote to memory of 640	2760	svchosts.exe	cmd.exe
PID 640 wrote to memory of 3020	640	cmd.exe	wbadmin.exe
PID 640 wrote to memory of 3020	640	cmd.exe	wbadmin.exe
PID 640 wrote to memory of 3020	640	cmd.exe	wbadmin.exe
PID 2760 wrote to memory of 2740	2760	svchosts.exe	NOTEPAD.EXE
PID 2760 wrote to memory of 2740	2760	svchosts.exe	NOTEPAD.EXE
PID 2760 wrote to memory of 2740	2760	svchosts.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\240ac12f9c13ef1fdfbc77e16978f0423a41a3cc1c3dcb8786ba8e7672811f0b.exe
"C:\Users\Admin\AppData\Local\Temp\240ac12f9c13ef1fdfbc77e16978f0423a41a3cc1c3dcb8786ba8e7672811f0b.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2556

C:\Users\Admin\AppData\Roaming\svchosts.exe
"C:\Users\Admin\AppData\Roaming\svchosts.exe"
2⤵
- Drops startup file
- Executes dropped EXE
- Drops desktop.ini file(s)
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2760

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:1888

C:\Windows\system32\vssadmin.exe
vssadmin delete shadows /all /quiet
4⤵
- Interacts with shadow copies
PID:792

C:\Windows\System32\Wbem\WMIC.exe
wmic shadowcopy delete
4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2212

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:2316

C:\Windows\system32\bcdedit.exe
bcdedit /set {default} bootstatuspolicy ignoreallfailures
4⤵
- Modifies boot configuration data using bcdedit
PID:2868

C:\Windows\system32\bcdedit.exe
bcdedit /set {default} recoveryenabled no
4⤵
- Modifies boot configuration data using bcdedit
PID:1884

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
3⤵
- Suspicious use of WriteProcessMemory
PID:640

C:\Windows\system32\wbadmin.exe
wbadmin delete catalog -quiet
4⤵
- Deletes backup catalog
PID:3020

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:2740

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1864

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1916

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:2108

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:1016

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

T1059

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

Query Registry

T1012

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Inhibit System Recovery

T1490

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Roaming\svchosts.exe
Filesize
24KB

MD5
63d533fb228e802c9c774ef75ff043fa

SHA1
16515f05ed0ae98bcbd3de8290704b516bc58080

SHA256
240ac12f9c13ef1fdfbc77e16978f0423a41a3cc1c3dcb8786ba8e7672811f0b

SHA512
9f428e10f018e1e65dc17b65937505a30932a74285aa23df4a8e875ba47ec60510cfa693a7d44e8ec81c6e25aa91c4a462b67902b0fe0190641d5b149d9ff4b1

Download Submit
C:\Users\Admin\Desktop\read_it.txt
Filesize
1KB

MD5
961c194ef480380e359d7e4681aa10fe

SHA1
3bb7f29dc1314d04a5f009f84b12113c40245295

SHA256
ca20a1ae7713fbc9b5d93d8ff0eb1feb9c407cc70de9eb7af0af7a447cd2078e

SHA512
0cafb5304ec3f3c217f2906e9d1ecd8ab756191f18c85de65ed119a6986a8ce05d9872a0419ccced156d2dfc511fa6fe7bb36d4e4a3efef9dacecc5d0af197f5

Download Submit
memory/2556-0-0x00000000011C0000-0x00000000011CC000-memory.dmp

Filesize
48KB

Download
memory/2556-1-0x000007FEF61B0000-0x000007FEF6B9C000-memory.dmp

Filesize
9.9MB

Download
memory/2556-8-0x000007FEF61B0000-0x000007FEF6B9C000-memory.dmp

Filesize
9.9MB

Download
memory/2760-7-0x0000000001030000-0x000000000103C000-memory.dmp

Filesize
48KB

Download
memory/2760-9-0x000007FEF61B0000-0x000007FEF6B9C000-memory.dmp

Filesize
9.9MB

Download
memory/2760-70-0x000007FEF61B0000-0x000007FEF6B9C000-memory.dmp

Filesize
9.9MB

Download
memory/2760-74-0x000000001AB90000-0x000000001AC10000-memory.dmp

Filesize
512KB

Download
memory/2760-77-0x000000001AB90000-0x000000001AC10000-memory.dmp

Filesize
512KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads