chaos | 8d0f1d92b4fff838cf346d892d79c35e4be114c2f9f3ef15e23b34617c61515e

Analysis

max time kernel
122s
max time network
132s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
23/07/2023, 07:41

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

8d0f1d92b4fff838cf346d892d79c35e4be114c2f9f3ef15e23b34617c61515e.exe
Size

342KB
MD5

28cfa829e7c09385aac5eae9439fb961
SHA1

71b0a00a387f50ab4727b6eb52ef52945837ebb0
SHA256

8d0f1d92b4fff838cf346d892d79c35e4be114c2f9f3ef15e23b34617c61515e
SHA512

51201855b63f1130bb08ac48af17a1c0281e86c707a78b14a30087404acb863a872f985d925a80bcec965316c18e493ad01306d5840428ff0b554fe9a8b836d8
SSDEEP

3072:iobbyor9dM9xCHGHQqEINH+pXzLjXR9DapqgPqtC26QjcwP0gjOkAZiLMRr+Zqql:vr9dMO/qEho/Pq/6QtI7szwup1jL0u

Score

10^/10

chaos evasion ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\Documents\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 0.05 BTC. 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. once payment is recieved and confirmed, the decrypting software will be sent to you through your mail or best way known to us. NOTE: YOU HAVE LIMITED TIME AND NO THIRD PARTY SHOULD BE INVOLVED ELSE WANTS TO LOOSE YOUR FILE Payment informationAmount: 0.05 BTC WALLET Address (BEP 20 NETWORK): 0x064329f556642e7df337cab8ae6116eac8723175

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 4 IoCs

resource	yara_rule
behavioral1/memory/2172-54-0x0000000000D10000-0x0000000000D6C000-memory.dmp	family_chaos
behavioral1/files/0x0008000000012028-59.dat	family_chaos
behavioral1/memory/2820-61-0x0000000000C60000-0x0000000000CBC000-memory.dmp	family_chaos
behavioral1/files/0x0008000000012028-60.dat	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

pid	Process
1464	bcdedit.exe
2284	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
2544	wbadmin.exe

Drops startup file 3 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\read_it.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
2820	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	C:\Users\Admin\Favorites\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\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\Maintenance\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Downloads\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Saved Games\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\Start Menu\Programs\Administrative Tools\desktop.ini	svchost.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-377084978-2088738870-2818360375-1000\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\Accessories\System Tools\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Documents\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Music\Sample Music\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Links\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
File opened for modification	C:\Users\Public\Music\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\Internet Explorer\Quick Launch\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\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\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Pictures\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\Public\Videos\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\Documents\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-1-5-21-377084978-2088738870-2818360375-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\rdt02roa4.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
2996	vssadmin.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
1432	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2820	svchost.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2172	8d0f1d92b4fff838cf346d892d79c35e4be114c2f9f3ef15e23b34617c61515e.exe
2172	8d0f1d92b4fff838cf346d892d79c35e4be114c2f9f3ef15e23b34617c61515e.exe
2820	svchost.exe
2820	svchost.exe
2820	svchost.exe
2820	svchost.exe
2820	svchost.exe
2820	svchost.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeDebugPrivilege	2172	8d0f1d92b4fff838cf346d892d79c35e4be114c2f9f3ef15e23b34617c61515e.exe
Token: SeDebugPrivilege	2820	svchost.exe
Token: SeBackupPrivilege	620	vssvc.exe
Token: SeRestorePrivilege	620	vssvc.exe
Token: SeAuditPrivilege	620	vssvc.exe
Token: SeIncreaseQuotaPrivilege	2992	WMIC.exe
Token: SeSecurityPrivilege	2992	WMIC.exe
Token: SeTakeOwnershipPrivilege	2992	WMIC.exe
Token: SeLoadDriverPrivilege	2992	WMIC.exe
Token: SeSystemProfilePrivilege	2992	WMIC.exe
Token: SeSystemtimePrivilege	2992	WMIC.exe
Token: SeProfSingleProcessPrivilege	2992	WMIC.exe
Token: SeIncBasePriorityPrivilege	2992	WMIC.exe
Token: SeCreatePagefilePrivilege	2992	WMIC.exe
Token: SeBackupPrivilege	2992	WMIC.exe
Token: SeRestorePrivilege	2992	WMIC.exe
Token: SeShutdownPrivilege	2992	WMIC.exe
Token: SeDebugPrivilege	2992	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2992	WMIC.exe
Token: SeRemoteShutdownPrivilege	2992	WMIC.exe
Token: SeUndockPrivilege	2992	WMIC.exe
Token: SeManageVolumePrivilege	2992	WMIC.exe
Token: 33	2992	WMIC.exe
Token: 34	2992	WMIC.exe
Token: 35	2992	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2992	WMIC.exe
Token: SeSecurityPrivilege	2992	WMIC.exe
Token: SeTakeOwnershipPrivilege	2992	WMIC.exe
Token: SeLoadDriverPrivilege	2992	WMIC.exe
Token: SeSystemProfilePrivilege	2992	WMIC.exe
Token: SeSystemtimePrivilege	2992	WMIC.exe
Token: SeProfSingleProcessPrivilege	2992	WMIC.exe
Token: SeIncBasePriorityPrivilege	2992	WMIC.exe
Token: SeCreatePagefilePrivilege	2992	WMIC.exe
Token: SeBackupPrivilege	2992	WMIC.exe
Token: SeRestorePrivilege	2992	WMIC.exe
Token: SeShutdownPrivilege	2992	WMIC.exe
Token: SeDebugPrivilege	2992	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2992	WMIC.exe
Token: SeRemoteShutdownPrivilege	2992	WMIC.exe
Token: SeUndockPrivilege	2992	WMIC.exe
Token: SeManageVolumePrivilege	2992	WMIC.exe
Token: 33	2992	WMIC.exe
Token: 34	2992	WMIC.exe
Token: 35	2992	WMIC.exe
Token: SeBackupPrivilege	2028	wbengine.exe
Token: SeRestorePrivilege	2028	wbengine.exe
Token: SeSecurityPrivilege	2028	wbengine.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1432	NOTEPAD.EXE

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2172 wrote to memory of 2820	2172	8d0f1d92b4fff838cf346d892d79c35e4be114c2f9f3ef15e23b34617c61515e.exe	28
PID 2172 wrote to memory of 2820	2172	8d0f1d92b4fff838cf346d892d79c35e4be114c2f9f3ef15e23b34617c61515e.exe	28
PID 2172 wrote to memory of 2820	2172	8d0f1d92b4fff838cf346d892d79c35e4be114c2f9f3ef15e23b34617c61515e.exe	28
PID 2820 wrote to memory of 576	2820	svchost.exe	30
PID 2820 wrote to memory of 576	2820	svchost.exe	30
PID 2820 wrote to memory of 576	2820	svchost.exe	30
PID 576 wrote to memory of 2996	576	cmd.exe	32
PID 576 wrote to memory of 2996	576	cmd.exe	32
PID 576 wrote to memory of 2996	576	cmd.exe	32
PID 576 wrote to memory of 2992	576	cmd.exe	36
PID 576 wrote to memory of 2992	576	cmd.exe	36
PID 576 wrote to memory of 2992	576	cmd.exe	36
PID 2820 wrote to memory of 1064	2820	svchost.exe	40
PID 2820 wrote to memory of 1064	2820	svchost.exe	40
PID 2820 wrote to memory of 1064	2820	svchost.exe	40
PID 1064 wrote to memory of 1464	1064	cmd.exe	42
PID 1064 wrote to memory of 1464	1064	cmd.exe	42
PID 1064 wrote to memory of 1464	1064	cmd.exe	42
PID 1064 wrote to memory of 2284	1064	cmd.exe	43
PID 1064 wrote to memory of 2284	1064	cmd.exe	43
PID 1064 wrote to memory of 2284	1064	cmd.exe	43
PID 2820 wrote to memory of 2224	2820	svchost.exe	44
PID 2820 wrote to memory of 2224	2820	svchost.exe	44
PID 2820 wrote to memory of 2224	2820	svchost.exe	44
PID 2224 wrote to memory of 2544	2224	cmd.exe	46
PID 2224 wrote to memory of 2544	2224	cmd.exe	46
PID 2224 wrote to memory of 2544	2224	cmd.exe	46
PID 2820 wrote to memory of 1432	2820	svchost.exe	50
PID 2820 wrote to memory of 1432	2820	svchost.exe	50
PID 2820 wrote to memory of 1432	2820	svchost.exe	50

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\8d0f1d92b4fff838cf346d892d79c35e4be114c2f9f3ef15e23b34617c61515e.exe
"C:\Users\Admin\AppData\Local\Temp\8d0f1d92b4fff838cf346d892d79c35e4be114c2f9f3ef15e23b34617c61515e.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2172
- 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:2820
- - 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:576
  - - C:\Windows\system32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:2996
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:2992
- - 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:1064
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:1464
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled no
      4⤵
      Modifies boot configuration data using bcdedit
      PID:2284
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2224
  - - C:\Windows\system32\wbadmin.exe
      wbadmin delete catalog -quiet
      4⤵
      Deletes backup catalog
      PID:2544
- - 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)
    - Suspicious use of FindShellTrayWindow
    PID:1432

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:620

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2028

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:1712

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:1912

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\read_it.txt

Filesize
1KB

MD5
e1c4d147e1841231b2773b5d4c3b1618

SHA1
f0469e7eadda1a916acc77e91abb0320b395a380

SHA256
ccef53de379cfaacc903f0989dadb640946980715819e7c10cec261534f01af3

SHA512
eb75815fd4e28612589071319df0405da054f131bc24064e249f2f524d1a413381d9313b5528608d078bf38e87b7fa3e9dea57edf147ce9b4425f550129d4910

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

Filesize
342KB

MD5
28cfa829e7c09385aac5eae9439fb961

SHA1
71b0a00a387f50ab4727b6eb52ef52945837ebb0

SHA256
8d0f1d92b4fff838cf346d892d79c35e4be114c2f9f3ef15e23b34617c61515e

SHA512
51201855b63f1130bb08ac48af17a1c0281e86c707a78b14a30087404acb863a872f985d925a80bcec965316c18e493ad01306d5840428ff0b554fe9a8b836d8

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

Filesize
342KB

MD5
28cfa829e7c09385aac5eae9439fb961

SHA1
71b0a00a387f50ab4727b6eb52ef52945837ebb0

SHA256
8d0f1d92b4fff838cf346d892d79c35e4be114c2f9f3ef15e23b34617c61515e

SHA512
51201855b63f1130bb08ac48af17a1c0281e86c707a78b14a30087404acb863a872f985d925a80bcec965316c18e493ad01306d5840428ff0b554fe9a8b836d8

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

Filesize
1KB

MD5
e1c4d147e1841231b2773b5d4c3b1618

SHA1
f0469e7eadda1a916acc77e91abb0320b395a380

SHA256
ccef53de379cfaacc903f0989dadb640946980715819e7c10cec261534f01af3

SHA512
eb75815fd4e28612589071319df0405da054f131bc24064e249f2f524d1a413381d9313b5528608d078bf38e87b7fa3e9dea57edf147ce9b4425f550129d4910

Download Submit
memory/2172-54-0x0000000000D10000-0x0000000000D6C000-memory.dmp

Filesize
368KB

Download
memory/2172-55-0x000007FEF5C00000-0x000007FEF65EC000-memory.dmp

Filesize
9.9MB

Download
memory/2172-62-0x000007FEF5C00000-0x000007FEF65EC000-memory.dmp

Filesize
9.9MB

Download
memory/2820-61-0x0000000000C60000-0x0000000000CBC000-memory.dmp

Filesize
368KB

Download
memory/2820-63-0x000007FEF5C00000-0x000007FEF65EC000-memory.dmp

Filesize
9.9MB

Download
memory/2820-65-0x000000001A990000-0x000000001AA10000-memory.dmp

Filesize
512KB

Download
memory/2820-499-0x000007FEF5C00000-0x000007FEF65EC000-memory.dmp

Filesize
9.9MB

Download
memory/2820-500-0x000000001A990000-0x000000001AA10000-memory.dmp

Filesize
512KB

Download