chaos | ae0f395572e1922d28a526075665b5be9cf619044348fe9058569f9dd94f52c9

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
28-04-2024 16:24

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General

Target

2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe
Size

28KB
MD5

0d74b1b35a300a46c077a159c9bb1f54
SHA1

cf866b0dd5eed866cee681a61dcad1d2a2b868e9
SHA256

ae0f395572e1922d28a526075665b5be9cf619044348fe9058569f9dd94f52c9
SHA512

dd0487163c66c7f8ddc7d36191abed25e1f4163852c72cecd506dafc16f7ccd4947f79f4dff006773cc11076b46d22cdb1de776f8b637ad60918135b2ef0a8cd
SSDEEP

768:dn3kIompLNMfKXROor9inlucg+wiNzGp5ek:t3kI/OIEor9inVg+Zk

Score

10^/10

chaos evasion ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\Desktop\important.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 $1,500. Payment can be made in Bitcoin only. We also have all your passwords and cookies so you cannot escape. 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 - https://www.coinmama.com Bitpanda - https://www.bitpanda.com Payment informationAmount: 0.0079 BTC Bitcoin Address: 3Gq3M3xz5dstUaCn7iLLxLRTBMs3BLKwPn

Wallets

3Gq3M3xz5dstUaCn7iLLxLRTBMs3BLKwPn

URLs

https://www.coinmama.com

https://www.bitpanda.com

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 3 IoCs

resource	yara_rule
behavioral1/memory/2660-0-0x0000000000F80000-0x0000000000F8E000-memory.dmp	family_chaos
behavioral1/files/0x000a000000014120-6.dat	family_chaos
behavioral1/memory/2556-7-0x0000000000EE0000-0x0000000000EEE000-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

resource	yara_rule
behavioral1/memory/2660-0-0x0000000000F80000-0x0000000000F8E000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/files/0x000a000000014120-6.dat	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/2556-7-0x0000000000EE0000-0x0000000000EEE000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware

Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs

ransomware evasion

Inhibit System Recovery

T1490

pid	Process
1200	bcdedit.exe
2900	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

pid	Process
1068	wbadmin.exe

Drops startup file 3 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
2556	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

Drops desktop.ini file(s) 34 IoCs

description	ioc	Process
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\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\Public\Pictures\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\Saved Games\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\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\Maintenance\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Music\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\Public\Videos\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Pictures\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\Administrative Tools\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Links\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Documents\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\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\Start Menu\Programs\Accessories\System Tools\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Downloads\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\Windows\Libraries\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\Contacts\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Favorites\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\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\Public\Documents\desktop.ini	svchost.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fq1rdixvh.jpg"	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

pid	Process
2976	vssadmin.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
1084	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2556	svchost.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2660	2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe
2660	2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe
2556	svchost.exe
2556	svchost.exe
2556	svchost.exe
2556	svchost.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeDebugPrivilege	2660	2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe
Token: SeDebugPrivilege	2556	svchost.exe
Token: SeBackupPrivilege	2868	vssvc.exe
Token: SeRestorePrivilege	2868	vssvc.exe
Token: SeAuditPrivilege	2868	vssvc.exe
Token: SeIncreaseQuotaPrivilege	1476	WMIC.exe
Token: SeSecurityPrivilege	1476	WMIC.exe
Token: SeTakeOwnershipPrivilege	1476	WMIC.exe
Token: SeLoadDriverPrivilege	1476	WMIC.exe
Token: SeSystemProfilePrivilege	1476	WMIC.exe
Token: SeSystemtimePrivilege	1476	WMIC.exe
Token: SeProfSingleProcessPrivilege	1476	WMIC.exe
Token: SeIncBasePriorityPrivilege	1476	WMIC.exe
Token: SeCreatePagefilePrivilege	1476	WMIC.exe
Token: SeBackupPrivilege	1476	WMIC.exe
Token: SeRestorePrivilege	1476	WMIC.exe
Token: SeShutdownPrivilege	1476	WMIC.exe
Token: SeDebugPrivilege	1476	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1476	WMIC.exe
Token: SeRemoteShutdownPrivilege	1476	WMIC.exe
Token: SeUndockPrivilege	1476	WMIC.exe
Token: SeManageVolumePrivilege	1476	WMIC.exe
Token: 33	1476	WMIC.exe
Token: 34	1476	WMIC.exe
Token: 35	1476	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1476	WMIC.exe
Token: SeSecurityPrivilege	1476	WMIC.exe
Token: SeTakeOwnershipPrivilege	1476	WMIC.exe
Token: SeLoadDriverPrivilege	1476	WMIC.exe
Token: SeSystemProfilePrivilege	1476	WMIC.exe
Token: SeSystemtimePrivilege	1476	WMIC.exe
Token: SeProfSingleProcessPrivilege	1476	WMIC.exe
Token: SeIncBasePriorityPrivilege	1476	WMIC.exe
Token: SeCreatePagefilePrivilege	1476	WMIC.exe
Token: SeBackupPrivilege	1476	WMIC.exe
Token: SeRestorePrivilege	1476	WMIC.exe
Token: SeShutdownPrivilege	1476	WMIC.exe
Token: SeDebugPrivilege	1476	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1476	WMIC.exe
Token: SeRemoteShutdownPrivilege	1476	WMIC.exe
Token: SeUndockPrivilege	1476	WMIC.exe
Token: SeManageVolumePrivilege	1476	WMIC.exe
Token: 33	1476	WMIC.exe
Token: 34	1476	WMIC.exe
Token: 35	1476	WMIC.exe
Token: SeBackupPrivilege	540	wbengine.exe
Token: SeRestorePrivilege	540	wbengine.exe
Token: SeSecurityPrivilege	540	wbengine.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2660 wrote to memory of 2556	2660	2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe	28
PID 2660 wrote to memory of 2556	2660	2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe	28
PID 2660 wrote to memory of 2556	2660	2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe	28
PID 2556 wrote to memory of 1760	2556	svchost.exe	29
PID 2556 wrote to memory of 1760	2556	svchost.exe	29
PID 2556 wrote to memory of 1760	2556	svchost.exe	29
PID 1760 wrote to memory of 2976	1760	cmd.exe	31
PID 1760 wrote to memory of 2976	1760	cmd.exe	31
PID 1760 wrote to memory of 2976	1760	cmd.exe	31
PID 1760 wrote to memory of 1476	1760	cmd.exe	35
PID 1760 wrote to memory of 1476	1760	cmd.exe	35
PID 1760 wrote to memory of 1476	1760	cmd.exe	35
PID 2556 wrote to memory of 2264	2556	svchost.exe	37
PID 2556 wrote to memory of 2264	2556	svchost.exe	37
PID 2556 wrote to memory of 2264	2556	svchost.exe	37
PID 2264 wrote to memory of 1200	2264	cmd.exe	39
PID 2264 wrote to memory of 1200	2264	cmd.exe	39
PID 2264 wrote to memory of 1200	2264	cmd.exe	39
PID 2264 wrote to memory of 2900	2264	cmd.exe	40
PID 2264 wrote to memory of 2900	2264	cmd.exe	40
PID 2264 wrote to memory of 2900	2264	cmd.exe	40
PID 2556 wrote to memory of 1956	2556	svchost.exe	41
PID 2556 wrote to memory of 1956	2556	svchost.exe	41
PID 2556 wrote to memory of 1956	2556	svchost.exe	41
PID 1956 wrote to memory of 1068	1956	cmd.exe	43
PID 1956 wrote to memory of 1068	1956	cmd.exe	43
PID 1956 wrote to memory of 1068	1956	cmd.exe	43
PID 2556 wrote to memory of 1084	2556	svchost.exe	47
PID 2556 wrote to memory of 1084	2556	svchost.exe	47
PID 2556 wrote to memory of 1084	2556	svchost.exe	47

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\2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-28_0d74b1b35a300a46c077a159c9bb1f54_chaos_destroyer_wannacry.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2660
- 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)
  - Sets desktop wallpaper using registry
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2556
- - 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:1760
  - - C:\Windows\system32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:2976
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:1476
- - 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:2264
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:1200
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled no
      4⤵
      Modifies boot configuration data using bcdedit
      PID:2900
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1956
  - - C:\Windows\system32\wbadmin.exe
      wbadmin delete catalog -quiet
      4⤵
      Deletes backup catalog
      PID:1068
- - C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\important.txt
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:1084

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2868

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:540

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:1340

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:240

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Credential Access

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

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

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

Filesize
28KB

MD5
0d74b1b35a300a46c077a159c9bb1f54

SHA1
cf866b0dd5eed866cee681a61dcad1d2a2b868e9

SHA256
ae0f395572e1922d28a526075665b5be9cf619044348fe9058569f9dd94f52c9

SHA512
dd0487163c66c7f8ddc7d36191abed25e1f4163852c72cecd506dafc16f7ccd4947f79f4dff006773cc11076b46d22cdb1de776f8b637ad60918135b2ef0a8cd

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

Filesize
941B

MD5
5fdc7e501de0d03fbda6f3dd7acb920a

SHA1
dc8d97ded3e372e28b239f113fc302cdb735bb94

SHA256
d0ef7c6d59cb28093c7418c9b32296669aa32a26721733c9fa08db4d55e07e88

SHA512
ea43036af4008ad5c8c1bebc017e5967ab7bc218f929b1efc6498aca2ddf40d2755205fd696c034b013abce2e2039e5320aed3f44c708a8faf161d1289a5524b

Download Submit
memory/2556-7-0x0000000000EE0000-0x0000000000EEE000-memory.dmp

Filesize
56KB

Download
memory/2556-9-0x000007FEF5B90000-0x000007FEF657C000-memory.dmp

Filesize
9.9MB

Download
memory/2556-85-0x000000001AD20000-0x000000001ADA0000-memory.dmp

Filesize
512KB

Download
memory/2556-86-0x000007FEF5B90000-0x000007FEF657C000-memory.dmp

Filesize
9.9MB

Download
memory/2556-87-0x000000001AD20000-0x000000001ADA0000-memory.dmp

Filesize
512KB

Download
memory/2660-0-0x0000000000F80000-0x0000000000F8E000-memory.dmp

Filesize
56KB

Download
memory/2660-1-0x000007FEF5B90000-0x000007FEF657C000-memory.dmp

Filesize
9.9MB

Download
memory/2660-8-0x000007FEF5B90000-0x000007FEF657C000-memory.dmp

Filesize
9.9MB

Download