chaos | 1b4d73a9a7c6d2163e7378c97f01fed223be9daa6acb71c81b11491907473f89

Analysis

max time kernel
101s
max time network
32s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
16-04-2023 04:02

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2023-04-15_2d23c83d6941cf484da19d4367c02df0_wannacry.exe
Size

490KB
MD5

2d23c83d6941cf484da19d4367c02df0
SHA1

b63dd1f2e35d8944dee745321643f06037dfe95e
SHA256

1b4d73a9a7c6d2163e7378c97f01fed223be9daa6acb71c81b11491907473f89
SHA512

28a5d2df80e9a1c5eeb65938479b7b96f754feff28244f91304361bd4c238d533f01d37598eedc95c6549c9066c8f15b2ce16262e02ce944dd47ed6e123ef797
SSDEEP

12288:wIOfQgbI1D/Tj7MACdotmELTtqGJouy9JtsmRrTNaTI7rERFUZ1K1s9L01:rt0v4yPpS

Score

10^/10

chaos evasion ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\Downloads\Fucking_it.txt

Ransom Note

----> Us Nexus Hackers . 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 (Your Systeam Hacked By Us Nexus Hackers White Force) ------- Contact Telegram Group The Virus Upload On Your Mother Board Bios Systeam Or Gpu Bios - (-Warning Dont Reset-Factory You Will Reset Your PC Will Be Crash Burn You Cpu Shell-) Contact ---- Gmail- [email protected] ----- Telegram- https://t.me/usnexushacker ----- Telegram-id Hide Contact Gmail Credit White Hackers -------------------- Cyber Security -------------------- Defance All War ---------------------- Website https://www.propub3r6espa33w.onion Dont Visit The Site Payment informationAmount: 0.3 BTC Bitcoin Wallet: 3LrDFbp6fRqkXE45bLipnrQNg9wMKyTR5S

Emails

[email protected]

Wallets

3LrDFbp6fRqkXE45bLipnrQNg9wMKyTR5S

URLs

https://t.me/usnexushacker

https://www.propub3r6espa33w.onion

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 4 IoCs

resource	yara_rule
behavioral1/memory/1900-54-0x0000000001160000-0x00000000011E0000-memory.dmp	family_chaos
behavioral1/files/0x002000000000f683-58.dat	family_chaos
behavioral1/files/0x002000000000f683-59.dat	family_chaos
behavioral1/memory/2044-60-0x0000000000A30000-0x0000000000AB0000-memory.dmp	family_chaos

Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs

ransomware evasion

Inhibit System Recovery

T1490

pid	Process
1492	bcdedit.exe
1672	bcdedit.exe

Deletes backup catalog 3 TTPs 1 IoCs

Uses wbadmin.exe to inhibit system recovery.

ransomware

Command-Line Interface

T1059

File Deletion

T1107

Inhibit System Recovery

T1490

pid	Process
1436	wbadmin.exe

Modifies extensions of user files 4 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File renamed	C:\Users\Admin\Pictures\NewDeny.tif => C:\Users\Admin\Pictures\NewDeny.tif.gqnt	svchost.exe
File renamed	C:\Users\Admin\Pictures\RenameExport.png => C:\Users\Admin\Pictures\RenameExport.png.arbg	svchost.exe
File renamed	C:\Users\Admin\Pictures\UnprotectRequest.raw => C:\Users\Admin\Pictures\UnprotectRequest.raw.jk35	svchost.exe
File renamed	C:\Users\Admin\Pictures\WriteSuspend.png => C:\Users\Admin\Pictures\WriteSuspend.png.kuf8	svchost.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\Fucking_it.txt	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2044	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
T1081

Drops desktop.ini file(s) 33 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Favorites\Links\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\Links\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Favorites\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Desktop\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\Pictures\Sample Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Contacts\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\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\AppData\Roaming\Microsoft\Windows\SendTo\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\Public\Music\Sample Music\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Downloads\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\Public\Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Searches\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Videos\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\Start Menu\Programs\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Music\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\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\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\Saved Games\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\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-1-5-21-1914912747-3343861975-731272777-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\bsmwfw4pr.jpg"	svchost.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

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

T1107

Inhibit System Recovery

T1490

pid	Process
1708	vssadmin.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
808	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2044	svchost.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1900	2023-04-15_2d23c83d6941cf484da19d4367c02df0_wannacry.exe
2044	svchost.exe
2044	svchost.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeDebugPrivilege	1900	2023-04-15_2d23c83d6941cf484da19d4367c02df0_wannacry.exe
Token: SeDebugPrivilege	2044	svchost.exe
Token: SeBackupPrivilege	740	vssvc.exe
Token: SeRestorePrivilege	740	vssvc.exe
Token: SeAuditPrivilege	740	vssvc.exe
Token: SeIncreaseQuotaPrivilege	1508	WMIC.exe
Token: SeSecurityPrivilege	1508	WMIC.exe
Token: SeTakeOwnershipPrivilege	1508	WMIC.exe
Token: SeLoadDriverPrivilege	1508	WMIC.exe
Token: SeSystemProfilePrivilege	1508	WMIC.exe
Token: SeSystemtimePrivilege	1508	WMIC.exe
Token: SeProfSingleProcessPrivilege	1508	WMIC.exe
Token: SeIncBasePriorityPrivilege	1508	WMIC.exe
Token: SeCreatePagefilePrivilege	1508	WMIC.exe
Token: SeBackupPrivilege	1508	WMIC.exe
Token: SeRestorePrivilege	1508	WMIC.exe
Token: SeShutdownPrivilege	1508	WMIC.exe
Token: SeDebugPrivilege	1508	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1508	WMIC.exe
Token: SeRemoteShutdownPrivilege	1508	WMIC.exe
Token: SeUndockPrivilege	1508	WMIC.exe
Token: SeManageVolumePrivilege	1508	WMIC.exe
Token: 33	1508	WMIC.exe
Token: 34	1508	WMIC.exe
Token: 35	1508	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1508	WMIC.exe
Token: SeSecurityPrivilege	1508	WMIC.exe
Token: SeTakeOwnershipPrivilege	1508	WMIC.exe
Token: SeLoadDriverPrivilege	1508	WMIC.exe
Token: SeSystemProfilePrivilege	1508	WMIC.exe
Token: SeSystemtimePrivilege	1508	WMIC.exe
Token: SeProfSingleProcessPrivilege	1508	WMIC.exe
Token: SeIncBasePriorityPrivilege	1508	WMIC.exe
Token: SeCreatePagefilePrivilege	1508	WMIC.exe
Token: SeBackupPrivilege	1508	WMIC.exe
Token: SeRestorePrivilege	1508	WMIC.exe
Token: SeShutdownPrivilege	1508	WMIC.exe
Token: SeDebugPrivilege	1508	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1508	WMIC.exe
Token: SeRemoteShutdownPrivilege	1508	WMIC.exe
Token: SeUndockPrivilege	1508	WMIC.exe
Token: SeManageVolumePrivilege	1508	WMIC.exe
Token: 33	1508	WMIC.exe
Token: 34	1508	WMIC.exe
Token: 35	1508	WMIC.exe
Token: SeBackupPrivilege	820	wbengine.exe
Token: SeRestorePrivilege	820	wbengine.exe
Token: SeSecurityPrivilege	820	wbengine.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1900 wrote to memory of 2044	1900	2023-04-15_2d23c83d6941cf484da19d4367c02df0_wannacry.exe	26
PID 1900 wrote to memory of 2044	1900	2023-04-15_2d23c83d6941cf484da19d4367c02df0_wannacry.exe	26
PID 1900 wrote to memory of 2044	1900	2023-04-15_2d23c83d6941cf484da19d4367c02df0_wannacry.exe	26
PID 2044 wrote to memory of 548	2044	svchost.exe	28
PID 2044 wrote to memory of 548	2044	svchost.exe	28
PID 2044 wrote to memory of 548	2044	svchost.exe	28
PID 548 wrote to memory of 1708	548	cmd.exe	30
PID 548 wrote to memory of 1708	548	cmd.exe	30
PID 548 wrote to memory of 1708	548	cmd.exe	30
PID 548 wrote to memory of 1508	548	cmd.exe	34
PID 548 wrote to memory of 1508	548	cmd.exe	34
PID 548 wrote to memory of 1508	548	cmd.exe	34
PID 2044 wrote to memory of 936	2044	svchost.exe	36
PID 2044 wrote to memory of 936	2044	svchost.exe	36
PID 2044 wrote to memory of 936	2044	svchost.exe	36
PID 936 wrote to memory of 1492	936	cmd.exe	38
PID 936 wrote to memory of 1492	936	cmd.exe	38
PID 936 wrote to memory of 1492	936	cmd.exe	38
PID 936 wrote to memory of 1672	936	cmd.exe	39
PID 936 wrote to memory of 1672	936	cmd.exe	39
PID 936 wrote to memory of 1672	936	cmd.exe	39
PID 2044 wrote to memory of 908	2044	svchost.exe	40
PID 2044 wrote to memory of 908	2044	svchost.exe	40
PID 2044 wrote to memory of 908	2044	svchost.exe	40
PID 908 wrote to memory of 1436	908	cmd.exe	42
PID 908 wrote to memory of 1436	908	cmd.exe	42
PID 908 wrote to memory of 1436	908	cmd.exe	42
PID 2044 wrote to memory of 808	2044	svchost.exe	46
PID 2044 wrote to memory of 808	2044	svchost.exe	46
PID 2044 wrote to memory of 808	2044	svchost.exe	46

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\2023-04-15_2d23c83d6941cf484da19d4367c02df0_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2023-04-15_2d23c83d6941cf484da19d4367c02df0_wannacry.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1900
- C:\Users\Admin\AppData\Roaming\svchost.exe
  "C:\Users\Admin\AppData\Roaming\svchost.exe"
  2⤵
  - Modifies extensions of user files
  - 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:2044
- - 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:548
  - - C:\Windows\system32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:1708
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:1508
- - 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:936
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:1492
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled no
      4⤵
      Modifies boot configuration data using bcdedit
      PID:1672
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:908
  - - C:\Windows\system32\wbadmin.exe
      wbadmin delete catalog -quiet
      4⤵
      Deletes backup catalog
      PID:1436
- - C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\Fucking_it.txt
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:808

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:740

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:820

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:1228

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:1992

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Command-Line Interface

T1059

Persistence

Privilege Escalation

Defense Evasion

File Deletion

T1107

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

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\Fucking_it.txt

Filesize
1KB

MD5
65be09f680bae0e52ba74b45d94b1415

SHA1
e4c7a68e87f2d460ed9cd925e60f2c56b335d7f2

SHA256
a318e1070f4dbf17a17ca1eca5a86ec8ecb414526387ea0aeca17b8921dbe41b

SHA512
1402f0c863c7c71a9e5aaf8e9b6108d0b3a4ce4d14aa20f482b805642220990515ad38f254392ac42fc6aeb9c6532c9e6cca2a20d4133b56d86c05be52cce14e

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

Filesize
490KB

MD5
2d23c83d6941cf484da19d4367c02df0

SHA1
b63dd1f2e35d8944dee745321643f06037dfe95e

SHA256
1b4d73a9a7c6d2163e7378c97f01fed223be9daa6acb71c81b11491907473f89

SHA512
28a5d2df80e9a1c5eeb65938479b7b96f754feff28244f91304361bd4c238d533f01d37598eedc95c6549c9066c8f15b2ce16262e02ce944dd47ed6e123ef797

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

Filesize
490KB

MD5
2d23c83d6941cf484da19d4367c02df0

SHA1
b63dd1f2e35d8944dee745321643f06037dfe95e

SHA256
1b4d73a9a7c6d2163e7378c97f01fed223be9daa6acb71c81b11491907473f89

SHA512
28a5d2df80e9a1c5eeb65938479b7b96f754feff28244f91304361bd4c238d533f01d37598eedc95c6549c9066c8f15b2ce16262e02ce944dd47ed6e123ef797

Download Submit
C:\Users\Admin\Downloads\Fucking_it.txt

Filesize
1KB

MD5
65be09f680bae0e52ba74b45d94b1415

SHA1
e4c7a68e87f2d460ed9cd925e60f2c56b335d7f2

SHA256
a318e1070f4dbf17a17ca1eca5a86ec8ecb414526387ea0aeca17b8921dbe41b

SHA512
1402f0c863c7c71a9e5aaf8e9b6108d0b3a4ce4d14aa20f482b805642220990515ad38f254392ac42fc6aeb9c6532c9e6cca2a20d4133b56d86c05be52cce14e

Download Submit
memory/1900-54-0x0000000001160000-0x00000000011E0000-memory.dmp

Filesize
512KB

Download
memory/2044-60-0x0000000000A30000-0x0000000000AB0000-memory.dmp

Filesize
512KB

Download
memory/2044-67-0x000000001AE90000-0x000000001AF10000-memory.dmp

Filesize
512KB

Download