chaos | 96954af5f3a422d26951296adeb8d9a2cae1ada61f63ee1a2c884a4ef938cf87

General

Target

2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe
Size

23KB
MD5

ee711be5ac7e4d382c21cb6cb3f9631b
SHA1

df2ad2e13d1160a900e730eeec7adc6503891088
SHA256

96954af5f3a422d26951296adeb8d9a2cae1ada61f63ee1a2c884a4ef938cf87
SHA512

bbd714ecbe31a75dd6d661cbcc7926e5cf2b7e0858f3931dc8ddd42d7254849e1b9a942f9ccc1140bd9f376a0149f4d79f1ef2e21b5aa45173c6f87e53fc12e2
SSDEEP

384:H3MLWHn3kI3fmIOyERMpOsbW+ATLJIr91Crxbo9deU:zn3kIYy6Mpzi9Ir9SxboveU

Score

10^/10

chaos evasion ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\read_it.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 $1,500. 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: 0.1473766 BTC Bitcoin Address: 3Gq3M3xz5dstUaCn7iLLxLRTBMs3BLKwPn And If you try to ignore or just wipe your PC, I have all your passwords so you are fucked.

Wallets

3Gq3M3xz5dstUaCn7iLLxLRTBMs3BLKwPn

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2380-0-0x0000000001230000-0x000000000123C000-memory.dmp	family_chaos
C:\Users\Admin\AppData\Roaming\svchost.exe	family_chaos
behavioral1/memory/2352-7-0x0000000000FD0000-0x0000000000FDC000-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

Detects command variations typically used by ransomware 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2380-0-0x0000000001230000-0x000000000123C000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
C:\Users\Admin\AppData\Roaming\svchost.exe	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/2352-7-0x0000000000FD0000-0x0000000000FDC000-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

1440 bcdedit.exe
1764 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

2964 wbadmin.exe

pid	process
1440	bcdedit.exe
1764	bcdedit.exe

pid	process
2964	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\read_it.txt	svchost.exe

Executes dropped EXE 1 IoCs

Processes:

svchost.exe

pid process

2352 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
2352	svchost.exe

Drops desktop.ini file(s) 34 IoCs

Processes:

svchost.exe

description	ioc	process
File opened for modification	C:\Users\Admin\Searches\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Contacts\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Music\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\Start Menu\Programs\Accessories\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\Videos\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Documents\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\Admin\AppData\Roaming\Microsoft\Windows\Recent\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\System Tools\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Music\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	svchost.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-3627615824-4061627003-3019543961-1000\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\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\Accessories\Accessibility\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\Public\Pictures\Sample Pictures\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\Admin\AppData\Roaming\Microsoft\Windows\Libraries\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\Public\Documents\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Videos\Sample Videos\desktop.ini	svchost.exe
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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Music\Sample Music\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

2524 vssadmin.exe
Opens file in notepad (likely ransom note) 1 IoCs
ransomware

Processes:

NOTEPAD.EXE

pid process

584 NOTEPAD.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

svchost.exe

pid process

2352 svchost.exe

pid	process
2524	vssadmin.exe

pid	process
584	NOTEPAD.EXE

pid	process
2352	svchost.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exesvchost.exe

pid	process
2380	2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe
2380	2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe
2352	svchost.exe
2352	svchost.exe
2352	svchost.exe
2352	svchost.exe
2352	svchost.exe
2352	svchost.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exesvchost.exevssvc.exeWMIC.exewbengine.exe

description	pid	process
Token: SeDebugPrivilege	2380	2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe
Token: SeDebugPrivilege	2352	svchost.exe
Token: SeBackupPrivilege	2952	vssvc.exe
Token: SeRestorePrivilege	2952	vssvc.exe
Token: SeAuditPrivilege	2952	vssvc.exe
Token: SeIncreaseQuotaPrivilege	2764	WMIC.exe
Token: SeSecurityPrivilege	2764	WMIC.exe
Token: SeTakeOwnershipPrivilege	2764	WMIC.exe
Token: SeLoadDriverPrivilege	2764	WMIC.exe
Token: SeSystemProfilePrivilege	2764	WMIC.exe
Token: SeSystemtimePrivilege	2764	WMIC.exe
Token: SeProfSingleProcessPrivilege	2764	WMIC.exe
Token: SeIncBasePriorityPrivilege	2764	WMIC.exe
Token: SeCreatePagefilePrivilege	2764	WMIC.exe
Token: SeBackupPrivilege	2764	WMIC.exe
Token: SeRestorePrivilege	2764	WMIC.exe
Token: SeShutdownPrivilege	2764	WMIC.exe
Token: SeDebugPrivilege	2764	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2764	WMIC.exe
Token: SeRemoteShutdownPrivilege	2764	WMIC.exe
Token: SeUndockPrivilege	2764	WMIC.exe
Token: SeManageVolumePrivilege	2764	WMIC.exe
Token: 33	2764	WMIC.exe
Token: 34	2764	WMIC.exe
Token: 35	2764	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2764	WMIC.exe
Token: SeSecurityPrivilege	2764	WMIC.exe
Token: SeTakeOwnershipPrivilege	2764	WMIC.exe
Token: SeLoadDriverPrivilege	2764	WMIC.exe
Token: SeSystemProfilePrivilege	2764	WMIC.exe
Token: SeSystemtimePrivilege	2764	WMIC.exe
Token: SeProfSingleProcessPrivilege	2764	WMIC.exe
Token: SeIncBasePriorityPrivilege	2764	WMIC.exe
Token: SeCreatePagefilePrivilege	2764	WMIC.exe
Token: SeBackupPrivilege	2764	WMIC.exe
Token: SeRestorePrivilege	2764	WMIC.exe
Token: SeShutdownPrivilege	2764	WMIC.exe
Token: SeDebugPrivilege	2764	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2764	WMIC.exe
Token: SeRemoteShutdownPrivilege	2764	WMIC.exe
Token: SeUndockPrivilege	2764	WMIC.exe
Token: SeManageVolumePrivilege	2764	WMIC.exe
Token: 33	2764	WMIC.exe
Token: 34	2764	WMIC.exe
Token: 35	2764	WMIC.exe
Token: SeBackupPrivilege	2024	wbengine.exe
Token: SeRestorePrivilege	2024	wbengine.exe
Token: SeSecurityPrivilege	2024	wbengine.exe

Suspicious use of WriteProcessMemory 30 IoCs

Processes:

2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exesvchost.execmd.execmd.execmd.exe

description	pid	process	target process
PID 2380 wrote to memory of 2352	2380	2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe	svchost.exe
PID 2380 wrote to memory of 2352	2380	2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe	svchost.exe
PID 2380 wrote to memory of 2352	2380	2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe	svchost.exe
PID 2352 wrote to memory of 2464	2352	svchost.exe	cmd.exe
PID 2352 wrote to memory of 2464	2352	svchost.exe	cmd.exe
PID 2352 wrote to memory of 2464	2352	svchost.exe	cmd.exe
PID 2464 wrote to memory of 2524	2464	cmd.exe	vssadmin.exe
PID 2464 wrote to memory of 2524	2464	cmd.exe	vssadmin.exe
PID 2464 wrote to memory of 2524	2464	cmd.exe	vssadmin.exe
PID 2464 wrote to memory of 2764	2464	cmd.exe	WMIC.exe
PID 2464 wrote to memory of 2764	2464	cmd.exe	WMIC.exe
PID 2464 wrote to memory of 2764	2464	cmd.exe	WMIC.exe
PID 2352 wrote to memory of 2784	2352	svchost.exe	cmd.exe
PID 2352 wrote to memory of 2784	2352	svchost.exe	cmd.exe
PID 2352 wrote to memory of 2784	2352	svchost.exe	cmd.exe
PID 2784 wrote to memory of 1440	2784	cmd.exe	bcdedit.exe
PID 2784 wrote to memory of 1440	2784	cmd.exe	bcdedit.exe
PID 2784 wrote to memory of 1440	2784	cmd.exe	bcdedit.exe
PID 2784 wrote to memory of 1764	2784	cmd.exe	bcdedit.exe
PID 2784 wrote to memory of 1764	2784	cmd.exe	bcdedit.exe
PID 2784 wrote to memory of 1764	2784	cmd.exe	bcdedit.exe
PID 2352 wrote to memory of 3048	2352	svchost.exe	cmd.exe
PID 2352 wrote to memory of 3048	2352	svchost.exe	cmd.exe
PID 2352 wrote to memory of 3048	2352	svchost.exe	cmd.exe
PID 3048 wrote to memory of 2964	3048	cmd.exe	wbadmin.exe
PID 3048 wrote to memory of 2964	3048	cmd.exe	wbadmin.exe
PID 3048 wrote to memory of 2964	3048	cmd.exe	wbadmin.exe
PID 2352 wrote to memory of 584	2352	svchost.exe	NOTEPAD.EXE
PID 2352 wrote to memory of 584	2352	svchost.exe	NOTEPAD.EXE
PID 2352 wrote to memory of 584	2352	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\2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-24_ee711be5ac7e4d382c21cb6cb3f9631b_chaos_destroyer_wannacry.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2380

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:2352

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:2464

C:\Windows\system32\vssadmin.exe
vssadmin delete shadows /all /quiet
4⤵
- Interacts with shadow copies
PID:2524

C:\Windows\System32\Wbem\WMIC.exe
wmic shadowcopy delete
4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2764

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:2784

C:\Windows\system32\bcdedit.exe
bcdedit /set {default} bootstatuspolicy ignoreallfailures
4⤵
- Modifies boot configuration data using bcdedit
PID:1440

C:\Windows\system32\bcdedit.exe
bcdedit /set {default} recoveryenabled no
4⤵
- Modifies boot configuration data using bcdedit
PID:1764

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
3⤵
- Suspicious use of WriteProcessMemory
PID:3048

C:\Windows\system32\wbadmin.exe
wbadmin delete catalog -quiet
4⤵
- Deletes backup catalog
PID:2964

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:584

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2952

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2024

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:1684

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:324

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

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

System Information Discovery

1

T1082

Query Registry

1

T1012

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Inhibit System Recovery

4

T1490

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\svchost.exe
Filesize
23KB

MD5
ee711be5ac7e4d382c21cb6cb3f9631b

SHA1
df2ad2e13d1160a900e730eeec7adc6503891088

SHA256
96954af5f3a422d26951296adeb8d9a2cae1ada61f63ee1a2c884a4ef938cf87

SHA512
bbd714ecbe31a75dd6d661cbcc7926e5cf2b7e0858f3931dc8ddd42d7254849e1b9a942f9ccc1140bd9f376a0149f4d79f1ef2e21b5aa45173c6f87e53fc12e2

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

MD5
b1a5c367bb7f0c30db6a506a3e3a2db8

SHA1
54b0d78890b96de58b22b718e04acd416bfb2f6d

SHA256
78e0b22120fa86f094a470a6b9f0ee786aa8dd3f683f172dc2a80a7194e41ba0

SHA512
b910fc7b20cf9c3b85548b1e212c4c0053014d6f4524787488052ec28dbebdc857d94b2fe3ca38efbfeab1bca73a9e6a345fc3578224410c757293e44b4d96a7

Download Submit
memory/2352-7-0x0000000000FD0000-0x0000000000FDC000-memory.dmp

Filesize
48KB

Download
memory/2352-9-0x000007FEF5C90000-0x000007FEF667C000-memory.dmp

Filesize
9.9MB

Download
memory/2352-74-0x0000000000AF0000-0x0000000000B70000-memory.dmp

Filesize
512KB

Download
memory/2352-76-0x000007FEF5C90000-0x000007FEF667C000-memory.dmp

Filesize
9.9MB

Download
memory/2352-77-0x0000000000AF0000-0x0000000000B70000-memory.dmp

Filesize
512KB

Download
memory/2380-0-0x0000000001230000-0x000000000123C000-memory.dmp

Filesize
48KB

Download
memory/2380-1-0x000007FEF5C90000-0x000007FEF667C000-memory.dmp

Filesize
9.9MB

Download
memory/2380-8-0x000007FEF5C90000-0x000007FEF667C000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

Loading Replay Monitor...

Downloads