chaos | 64d0b1b9e3bcae016bb2a2cbf1ba0fe05a0f1e3853bda1dd58adda14a5cf2544

General

Target

2024-05-26_d4669c94a097854dce4884b30969263a_chaos_destroyer_wannacry.exe
Size

22KB
MD5

d4669c94a097854dce4884b30969263a
SHA1

beaef0dae9832bc5f4406140629d952d90bcad3c
SHA256

64d0b1b9e3bcae016bb2a2cbf1ba0fe05a0f1e3853bda1dd58adda14a5cf2544
SHA512

a7f51b4100c29beac1eef99b88dcbac2fc5e961b7e9da7ef2fc754db5bf1d50c0eb9e1f6a6e72869a782fe62335178ae09f39857517a1cd9f1d83b9bebeed523
SSDEEP

384:23MLWHn3kIk/IqoIApcXsQP8GdtKXRIJRr91CzJb6kem:6n3kIMLApcNPfKXRARr9iJbpem

Score

10^/10

chaos defense_evasion evasion execution impact ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\howtouninstall.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 $100. 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: 0.000014 BTC Bitcoin Address: 12mNn7mCFptRZynEfLA2mEowHYsPYhYVKZ

Wallets

12mNn7mCFptRZynEfLA2mEowHYsPYhYVKZ

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1276-1-0x0000000000930000-0x000000000093C000-memory.dmp	family_chaos
C:\Users\Admin\AppData\Roaming\svchost.exe	family_chaos
behavioral1/memory/3048-7-0x0000000000850000-0x000000000085C000-memory.dmp	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

Detects command variations typically used by ransomware 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1276-1-0x0000000000930000-0x000000000093C000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
C:\Users\Admin\AppData\Roaming\svchost.exe	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/3048-7-0x0000000000850000-0x000000000085C000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware

Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
ransomware evasion

Inhibit System Recovery
T1490

Processes:

bcdedit.exebcdedit.exe

pid process

1592 bcdedit.exe
2056 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

1268 wbadmin.exe

pid	process
1592	bcdedit.exe
2056	bcdedit.exe

pid	process
1268	wbadmin.exe

Drops startup file 3 IoCs

Processes:

svchost.exe

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

Executes dropped EXE 1 IoCs

Processes:

svchost.exe

pid process

3048 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
3048	svchost.exe

Drops desktop.ini file(s) 34 IoCs

Processes:

svchost.exe

description	ioc	process
File opened for modification	C:\Users\Admin\Links\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 for United States\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Videos\Sample Videos\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Searches\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\Libraries\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\Administrative Tools\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Pictures\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\Start Menu\Programs\Accessories\System Tools\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Contacts\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Downloads\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Favorites\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\Start Menu\Programs\Accessories\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Music\Sample Music\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Favorites\Links\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Documents\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	svchost.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-2737914667-933161113-3798636211-1000\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\Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Pictures\Sample Pictures\desktop.ini	svchost.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

1028 vssadmin.exe
Opens file in notepad (likely ransom note) 1 IoCs
ransomware

Processes:

NOTEPAD.EXE

pid process

1100 NOTEPAD.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

svchost.exe

pid process

3048 svchost.exe

pid	process
1028	vssadmin.exe

pid	process
1100	NOTEPAD.EXE

pid	process
3048	svchost.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

2024-05-26_d4669c94a097854dce4884b30969263a_chaos_destroyer_wannacry.exesvchost.exe

pid	process
1276	2024-05-26_d4669c94a097854dce4884b30969263a_chaos_destroyer_wannacry.exe
1276	2024-05-26_d4669c94a097854dce4884b30969263a_chaos_destroyer_wannacry.exe
3048	svchost.exe
3048	svchost.exe
3048	svchost.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

2024-05-26_d4669c94a097854dce4884b30969263a_chaos_destroyer_wannacry.exesvchost.exevssvc.exeWMIC.exewbengine.exe

description	pid	process
Token: SeDebugPrivilege	1276	2024-05-26_d4669c94a097854dce4884b30969263a_chaos_destroyer_wannacry.exe
Token: SeDebugPrivilege	3048	svchost.exe
Token: SeBackupPrivilege	2780	vssvc.exe
Token: SeRestorePrivilege	2780	vssvc.exe
Token: SeAuditPrivilege	2780	vssvc.exe
Token: SeIncreaseQuotaPrivilege	2488	WMIC.exe
Token: SeSecurityPrivilege	2488	WMIC.exe
Token: SeTakeOwnershipPrivilege	2488	WMIC.exe
Token: SeLoadDriverPrivilege	2488	WMIC.exe
Token: SeSystemProfilePrivilege	2488	WMIC.exe
Token: SeSystemtimePrivilege	2488	WMIC.exe
Token: SeProfSingleProcessPrivilege	2488	WMIC.exe
Token: SeIncBasePriorityPrivilege	2488	WMIC.exe
Token: SeCreatePagefilePrivilege	2488	WMIC.exe
Token: SeBackupPrivilege	2488	WMIC.exe
Token: SeRestorePrivilege	2488	WMIC.exe
Token: SeShutdownPrivilege	2488	WMIC.exe
Token: SeDebugPrivilege	2488	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2488	WMIC.exe
Token: SeRemoteShutdownPrivilege	2488	WMIC.exe
Token: SeUndockPrivilege	2488	WMIC.exe
Token: SeManageVolumePrivilege	2488	WMIC.exe
Token: 33	2488	WMIC.exe
Token: 34	2488	WMIC.exe
Token: 35	2488	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2488	WMIC.exe
Token: SeSecurityPrivilege	2488	WMIC.exe
Token: SeTakeOwnershipPrivilege	2488	WMIC.exe
Token: SeLoadDriverPrivilege	2488	WMIC.exe
Token: SeSystemProfilePrivilege	2488	WMIC.exe
Token: SeSystemtimePrivilege	2488	WMIC.exe
Token: SeProfSingleProcessPrivilege	2488	WMIC.exe
Token: SeIncBasePriorityPrivilege	2488	WMIC.exe
Token: SeCreatePagefilePrivilege	2488	WMIC.exe
Token: SeBackupPrivilege	2488	WMIC.exe
Token: SeRestorePrivilege	2488	WMIC.exe
Token: SeShutdownPrivilege	2488	WMIC.exe
Token: SeDebugPrivilege	2488	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2488	WMIC.exe
Token: SeRemoteShutdownPrivilege	2488	WMIC.exe
Token: SeUndockPrivilege	2488	WMIC.exe
Token: SeManageVolumePrivilege	2488	WMIC.exe
Token: 33	2488	WMIC.exe
Token: 34	2488	WMIC.exe
Token: 35	2488	WMIC.exe
Token: SeBackupPrivilege	1976	wbengine.exe
Token: SeRestorePrivilege	1976	wbengine.exe
Token: SeSecurityPrivilege	1976	wbengine.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

2024-05-26_d4669c94a097854dce4884b30969263a_chaos_destroyer_wannacry.exesvchost.execmd.execmd.execmd.exe

description	pid	process	target process
PID 1276 wrote to memory of 3048	1276	2024-05-26_d4669c94a097854dce4884b30969263a_chaos_destroyer_wannacry.exe	svchost.exe
PID 1276 wrote to memory of 3048	1276	2024-05-26_d4669c94a097854dce4884b30969263a_chaos_destroyer_wannacry.exe	svchost.exe
PID 1276 wrote to memory of 3048	1276	2024-05-26_d4669c94a097854dce4884b30969263a_chaos_destroyer_wannacry.exe	svchost.exe
PID 3048 wrote to memory of 1616	3048	svchost.exe	cmd.exe
PID 3048 wrote to memory of 1616	3048	svchost.exe	cmd.exe
PID 3048 wrote to memory of 1616	3048	svchost.exe	cmd.exe
PID 1616 wrote to memory of 1028	1616	cmd.exe	vssadmin.exe
PID 1616 wrote to memory of 1028	1616	cmd.exe	vssadmin.exe
PID 1616 wrote to memory of 1028	1616	cmd.exe	vssadmin.exe
PID 1616 wrote to memory of 2488	1616	cmd.exe	WMIC.exe
PID 1616 wrote to memory of 2488	1616	cmd.exe	WMIC.exe
PID 1616 wrote to memory of 2488	1616	cmd.exe	WMIC.exe
PID 3048 wrote to memory of 1400	3048	svchost.exe	cmd.exe
PID 3048 wrote to memory of 1400	3048	svchost.exe	cmd.exe
PID 3048 wrote to memory of 1400	3048	svchost.exe	cmd.exe
PID 1400 wrote to memory of 1592	1400	cmd.exe	bcdedit.exe
PID 1400 wrote to memory of 1592	1400	cmd.exe	bcdedit.exe
PID 1400 wrote to memory of 1592	1400	cmd.exe	bcdedit.exe
PID 1400 wrote to memory of 2056	1400	cmd.exe	bcdedit.exe
PID 1400 wrote to memory of 2056	1400	cmd.exe	bcdedit.exe
PID 1400 wrote to memory of 2056	1400	cmd.exe	bcdedit.exe
PID 3048 wrote to memory of 1552	3048	svchost.exe	cmd.exe
PID 3048 wrote to memory of 1552	3048	svchost.exe	cmd.exe
PID 3048 wrote to memory of 1552	3048	svchost.exe	cmd.exe
PID 1552 wrote to memory of 1268	1552	cmd.exe	wbadmin.exe
PID 1552 wrote to memory of 1268	1552	cmd.exe	wbadmin.exe
PID 1552 wrote to memory of 1268	1552	cmd.exe	wbadmin.exe
PID 3048 wrote to memory of 1100	3048	svchost.exe	NOTEPAD.EXE
PID 3048 wrote to memory of 1100	3048	svchost.exe	NOTEPAD.EXE
PID 3048 wrote to memory of 1100	3048	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\2024-05-26_d4669c94a097854dce4884b30969263a_chaos_destroyer_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-05-26_d4669c94a097854dce4884b30969263a_chaos_destroyer_wannacry.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1276

C:\Users\Admin\AppData\Roaming\svchost.exe
"C:\Users\Admin\AppData\Roaming\svchost.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:3048

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:1616

C:\Windows\system32\vssadmin.exe
vssadmin delete shadows /all /quiet
4⤵
- Interacts with shadow copies
PID:1028

C:\Windows\System32\Wbem\WMIC.exe
wmic shadowcopy delete
4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2488

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:1400

C:\Windows\system32\bcdedit.exe
bcdedit /set {default} bootstatuspolicy ignoreallfailures
4⤵
- Modifies boot configuration data using bcdedit
PID:1592

C:\Windows\system32\bcdedit.exe
bcdedit /set {default} recoveryenabled no
4⤵
- Modifies boot configuration data using bcdedit
PID:2056

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
3⤵
- Suspicious use of WriteProcessMemory
PID:1552

C:\Windows\system32\wbadmin.exe
wbadmin delete catalog -quiet
4⤵
- Deletes backup catalog
PID:1268

C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\howtouninstall.txt
3⤵
- Opens file in notepad (likely ransom note)
PID:1100

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2780

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1976

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:2912

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:856

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Windows Management Instrumentation

1

T1047

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

3

T1070

File Deletion

3

T1070.004

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Inhibit System Recovery

4

T1490

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Downloads

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

Filesize
22KB

MD5
d4669c94a097854dce4884b30969263a

SHA1
beaef0dae9832bc5f4406140629d952d90bcad3c

SHA256
64d0b1b9e3bcae016bb2a2cbf1ba0fe05a0f1e3853bda1dd58adda14a5cf2544

SHA512
a7f51b4100c29beac1eef99b88dcbac2fc5e961b7e9da7ef2fc754db5bf1d50c0eb9e1f6a6e72869a782fe62335178ae09f39857517a1cd9f1d83b9bebeed523

Download Submit
C:\Users\Admin\Desktop\howtouninstall.txt

Filesize
955B

MD5
79f37ebbd9fad4e2219563953c94d152

SHA1
87a362ff8fe4240d4031366277ac2d8a3f51c184

SHA256
bdba644092aa5efb03249e8306d4117cb615a286acf46ccfdd382f867f3d56b6

SHA512
da3512e9e77f6f088394fa5a6153b38d0bd7dab87f027023b9718b3e11d915f7a497e1b491f699eeadbbbb2a8f105d111b6898b3b514986221ba551614fc2fd7

Download Submit
memory/1276-0-0x000007FEF5623000-0x000007FEF5624000-memory.dmp

Filesize
4KB

Download
memory/1276-1-0x0000000000930000-0x000000000093C000-memory.dmp

Filesize
48KB

Download
memory/3048-7-0x0000000000850000-0x000000000085C000-memory.dmp

Filesize
48KB

Download
memory/3048-17-0x000007FEF5620000-0x000007FEF600C000-memory.dmp

Filesize
9.9MB

Download
memory/3048-78-0x000007FEF5620000-0x000007FEF600C000-memory.dmp

Filesize
9.9MB

Download
memory/3048-79-0x000007FEF5620000-0x000007FEF600C000-memory.dmp

Filesize
9.9MB

Download
memory/3048-80-0x000007FEF5620000-0x000007FEF600C000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads