chaos | ddbbc3f1c1a8bf36095de2ad90bd7dbf79444a108360de96fa471c4b539fc886

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
10-01-2025 00:45

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General

Target

2025-01-10_e29357c31f33553f4185b4c9d13583a5_wannacry.exe
Size

417KB
MD5

e29357c31f33553f4185b4c9d13583a5
SHA1

ede54cdb9eb140196cf35be8aa1a891f3ef009a7
SHA256

ddbbc3f1c1a8bf36095de2ad90bd7dbf79444a108360de96fa471c4b539fc886
SHA512

428b806e6f91b665da5b6e3d88aaacb26ebed723625eb6594719f94ccae0d0e1e6678284e5198eb31ab7b46209b494f6737b11adf3ade4cc37302ec82a5f9d94
SSDEEP

1536:K3kITs9PYr9iSBo55LOKy9xtO/TFw4yYgPt7nHj0pNO4E0:K3kQ4Yr9iSOauw5/PtTHj0NO4l

Score

10^/10

chaos defense_evasion evasion execution impact 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 $100M. 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: 100m $ Bitcoin Address: bc1qlnzcep4l4ac0ttdrq7awxev9ehu465f2vpt9x0

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 3 IoCs

resource	yara_rule
behavioral1/memory/2280-1-0x00000000010A0000-0x000000000110E000-memory.dmp	family_chaos
behavioral1/memory/2692-7-0x0000000000D40000-0x0000000000DAE000-memory.dmp	family_chaos
behavioral1/files/0x000a00000001225c-6.dat	family_chaos

Chaos 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

pid	Process
2248	bcdedit.exe
2040	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
1988	wbadmin.exe

Drops startup file 3 IoCs

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

pid	Process
2692	svchost.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

Drops desktop.ini file(s) 34 IoCs

description	ioc	Process
File opened for modification	C:\Users\Public\Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Pictures\Sample Pictures\desktop.ini	svchost.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-3533259084-2542256011-65585152-1000\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\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Desktop\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\Windows\Start Menu\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Desktop\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\Favorites\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\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\Administrative Tools\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Music\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\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Documents\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\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\System Tools\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\Downloads\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\Libraries\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\Videos\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\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\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-1-5-21-3533259084-2542256011-65585152-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\4h0mb63bt.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 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

pid	Process
1664	vssadmin.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
1700	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2692	svchost.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2280	2025-01-10_e29357c31f33553f4185b4c9d13583a5_wannacry.exe
2280	2025-01-10_e29357c31f33553f4185b4c9d13583a5_wannacry.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeDebugPrivilege	2280	2025-01-10_e29357c31f33553f4185b4c9d13583a5_wannacry.exe
Token: SeDebugPrivilege	2692	svchost.exe
Token: SeBackupPrivilege	2380	vssvc.exe
Token: SeRestorePrivilege	2380	vssvc.exe
Token: SeAuditPrivilege	2380	vssvc.exe
Token: SeIncreaseQuotaPrivilege	1752	WMIC.exe
Token: SeSecurityPrivilege	1752	WMIC.exe
Token: SeTakeOwnershipPrivilege	1752	WMIC.exe
Token: SeLoadDriverPrivilege	1752	WMIC.exe
Token: SeSystemProfilePrivilege	1752	WMIC.exe
Token: SeSystemtimePrivilege	1752	WMIC.exe
Token: SeProfSingleProcessPrivilege	1752	WMIC.exe
Token: SeIncBasePriorityPrivilege	1752	WMIC.exe
Token: SeCreatePagefilePrivilege	1752	WMIC.exe
Token: SeBackupPrivilege	1752	WMIC.exe
Token: SeRestorePrivilege	1752	WMIC.exe
Token: SeShutdownPrivilege	1752	WMIC.exe
Token: SeDebugPrivilege	1752	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1752	WMIC.exe
Token: SeRemoteShutdownPrivilege	1752	WMIC.exe
Token: SeUndockPrivilege	1752	WMIC.exe
Token: SeManageVolumePrivilege	1752	WMIC.exe
Token: 33	1752	WMIC.exe
Token: 34	1752	WMIC.exe
Token: 35	1752	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1752	WMIC.exe
Token: SeSecurityPrivilege	1752	WMIC.exe
Token: SeTakeOwnershipPrivilege	1752	WMIC.exe
Token: SeLoadDriverPrivilege	1752	WMIC.exe
Token: SeSystemProfilePrivilege	1752	WMIC.exe
Token: SeSystemtimePrivilege	1752	WMIC.exe
Token: SeProfSingleProcessPrivilege	1752	WMIC.exe
Token: SeIncBasePriorityPrivilege	1752	WMIC.exe
Token: SeCreatePagefilePrivilege	1752	WMIC.exe
Token: SeBackupPrivilege	1752	WMIC.exe
Token: SeRestorePrivilege	1752	WMIC.exe
Token: SeShutdownPrivilege	1752	WMIC.exe
Token: SeDebugPrivilege	1752	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1752	WMIC.exe
Token: SeRemoteShutdownPrivilege	1752	WMIC.exe
Token: SeUndockPrivilege	1752	WMIC.exe
Token: SeManageVolumePrivilege	1752	WMIC.exe
Token: 33	1752	WMIC.exe
Token: 34	1752	WMIC.exe
Token: 35	1752	WMIC.exe
Token: SeBackupPrivilege	1776	wbengine.exe
Token: SeRestorePrivilege	1776	wbengine.exe
Token: SeSecurityPrivilege	1776	wbengine.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2280 wrote to memory of 2692	2280	2025-01-10_e29357c31f33553f4185b4c9d13583a5_wannacry.exe	28
PID 2280 wrote to memory of 2692	2280	2025-01-10_e29357c31f33553f4185b4c9d13583a5_wannacry.exe	28
PID 2280 wrote to memory of 2692	2280	2025-01-10_e29357c31f33553f4185b4c9d13583a5_wannacry.exe	28
PID 2692 wrote to memory of 2564	2692	svchost.exe	29
PID 2692 wrote to memory of 2564	2692	svchost.exe	29
PID 2692 wrote to memory of 2564	2692	svchost.exe	29
PID 2564 wrote to memory of 1664	2564	cmd.exe	31
PID 2564 wrote to memory of 1664	2564	cmd.exe	31
PID 2564 wrote to memory of 1664	2564	cmd.exe	31
PID 2564 wrote to memory of 1752	2564	cmd.exe	35
PID 2564 wrote to memory of 1752	2564	cmd.exe	35
PID 2564 wrote to memory of 1752	2564	cmd.exe	35
PID 2692 wrote to memory of 796	2692	svchost.exe	37
PID 2692 wrote to memory of 796	2692	svchost.exe	37
PID 2692 wrote to memory of 796	2692	svchost.exe	37
PID 796 wrote to memory of 2248	796	cmd.exe	39
PID 796 wrote to memory of 2248	796	cmd.exe	39
PID 796 wrote to memory of 2248	796	cmd.exe	39
PID 796 wrote to memory of 2040	796	cmd.exe	40
PID 796 wrote to memory of 2040	796	cmd.exe	40
PID 796 wrote to memory of 2040	796	cmd.exe	40
PID 2692 wrote to memory of 2404	2692	svchost.exe	41
PID 2692 wrote to memory of 2404	2692	svchost.exe	41
PID 2692 wrote to memory of 2404	2692	svchost.exe	41
PID 2404 wrote to memory of 1988	2404	cmd.exe	43
PID 2404 wrote to memory of 1988	2404	cmd.exe	43
PID 2404 wrote to memory of 1988	2404	cmd.exe	43
PID 2692 wrote to memory of 1700	2692	svchost.exe	47
PID 2692 wrote to memory of 1700	2692	svchost.exe	47
PID 2692 wrote to memory of 1700	2692	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\2025-01-10_e29357c31f33553f4185b4c9d13583a5_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-10_e29357c31f33553f4185b4c9d13583a5_wannacry.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2280
- 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:2692
- - 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:2564
  - - C:\Windows\system32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:1664
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:1752
- - 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:796
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:2248
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled no
      4⤵
      Modifies boot configuration data using bcdedit
      PID:2040
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2404
  - - C:\Windows\system32\wbadmin.exe
      wbadmin delete catalog -quiet
      4⤵
      Deletes backup catalog
      PID:1988
- - 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:1700

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2380

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1776

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:2184

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:2680

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Management Instrumentation

T1047

Persistence

Privilege Escalation

Defense Evasion

Direct Volume Access

T1006

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

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
417KB

MD5
e29357c31f33553f4185b4c9d13583a5

SHA1
ede54cdb9eb140196cf35be8aa1a891f3ef009a7

SHA256
ddbbc3f1c1a8bf36095de2ad90bd7dbf79444a108360de96fa471c4b539fc886

SHA512
428b806e6f91b665da5b6e3d88aaacb26ebed723625eb6594719f94ccae0d0e1e6678284e5198eb31ab7b46209b494f6737b11adf3ade4cc37302ec82a5f9d94

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

Filesize
956B

MD5
d79409f7d82e2cff795b38a6a9414f95

SHA1
1a60743bf8bdeb63ef5715e52ef938301245c7a2

SHA256
bc1fe559fdf8cf86c9763c6bd6f9a09d3915f4b3345cb2f8a2641af3c3d66d22

SHA512
922f0b4e10ef2b906b3022ddc6408bd9f47863aad79281be9774e9089e34b8f92fc77239b7251d0ed5e6dd059a315e6f1e48330ae71fb13d3c79e3750834249a

Download Submit
memory/2280-0-0x000007FEF5233000-0x000007FEF5234000-memory.dmp

Filesize
4KB

Download
memory/2280-1-0x00000000010A0000-0x000000000110E000-memory.dmp

Filesize
440KB

Download
memory/2692-7-0x0000000000D40000-0x0000000000DAE000-memory.dmp

Filesize
440KB

Download
memory/2692-23-0x000007FEF5230000-0x000007FEF5C1C000-memory.dmp

Filesize
9.9MB

Download
memory/2692-73-0x000007FEF5230000-0x000007FEF5C1C000-memory.dmp

Filesize
9.9MB

Download
memory/2692-74-0x000007FEF5230000-0x000007FEF5C1C000-memory.dmp

Filesize
9.9MB

Download