chaos | cc65535243dfd3cd54a9c5ecfcb93c7f918a87c725e9c52925017ab92effe278

Analysis

max time kernel
117s
max time network
123s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
13-07-2024 09:29

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General

Target

1b4d73a9a7c6d2163e7378c97f01fed223be9daa6acb71c81b11491907473f89.exe
Size

490KB
MD5

2d23c83d6941cf484da19d4367c02df0
SHA1

b63dd1f2e35d8944dee745321643f06037dfe95e
SHA256

1b4d73a9a7c6d2163e7378c97f01fed223be9daa6acb71c81b11491907473f89
SHA512

28a5d2df80e9a1c5eeb65938479b7b96f754feff28244f91304361bd4c238d533f01d37598eedc95c6549c9066c8f15b2ce16262e02ce944dd47ed6e123ef797
SSDEEP

12288:wIOfQgbI1D/Tj7MACdotmELTtqGJouy9JtsmRrTNaTI7rERFUZ1K1s9L01:rt0v4yPpS

Score

10^/10

chaos defense_evasion evasion execution impact ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\Documents\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 3 IoCs

resource	yara_rule
behavioral9/memory/344-1-0x0000000000AC0000-0x0000000000B40000-memory.dmp	family_chaos
behavioral9/files/0x0004000000011ba2-5.dat	family_chaos
behavioral9/memory/2352-7-0x0000000000F60000-0x0000000000FE0000-memory.dmp	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
2432	bcdedit.exe
1936	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
3000	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\Fucking_it.txt	svchost.exe

Executes dropped EXE 1 IoCs

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

Drops desktop.ini file(s) 34 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Documents\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\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\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\Admin\Pictures\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\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\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\Favorites\Links\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\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\Windows\SendTo\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\Programs\Maintenance\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\Sample 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\Contacts\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Saved Games\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\Accessories\System Tools\Desktop.ini	svchost.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-2958949473-3205530200-1453100116-1000\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Downloads\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Documents\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Pictures\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	C:\Users\Admin\Favorites\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Videos\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-1-5-21-2958949473-3205530200-1453100116-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\wg7lzv7gx.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
2144	vssadmin.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
2688	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2352	svchost.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
344	1b4d73a9a7c6d2163e7378c97f01fed223be9daa6acb71c81b11491907473f89.exe
344	1b4d73a9a7c6d2163e7378c97f01fed223be9daa6acb71c81b11491907473f89.exe
344	1b4d73a9a7c6d2163e7378c97f01fed223be9daa6acb71c81b11491907473f89.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

description	pid	Process
Token: SeDebugPrivilege	344	1b4d73a9a7c6d2163e7378c97f01fed223be9daa6acb71c81b11491907473f89.exe
Token: SeDebugPrivilege	2352	svchost.exe
Token: SeBackupPrivilege	2024	vssvc.exe
Token: SeRestorePrivilege	2024	vssvc.exe
Token: SeAuditPrivilege	2024	vssvc.exe
Token: SeIncreaseQuotaPrivilege	2612	WMIC.exe
Token: SeSecurityPrivilege	2612	WMIC.exe
Token: SeTakeOwnershipPrivilege	2612	WMIC.exe
Token: SeLoadDriverPrivilege	2612	WMIC.exe
Token: SeSystemProfilePrivilege	2612	WMIC.exe
Token: SeSystemtimePrivilege	2612	WMIC.exe
Token: SeProfSingleProcessPrivilege	2612	WMIC.exe
Token: SeIncBasePriorityPrivilege	2612	WMIC.exe
Token: SeCreatePagefilePrivilege	2612	WMIC.exe
Token: SeBackupPrivilege	2612	WMIC.exe
Token: SeRestorePrivilege	2612	WMIC.exe
Token: SeShutdownPrivilege	2612	WMIC.exe
Token: SeDebugPrivilege	2612	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2612	WMIC.exe
Token: SeRemoteShutdownPrivilege	2612	WMIC.exe
Token: SeUndockPrivilege	2612	WMIC.exe
Token: SeManageVolumePrivilege	2612	WMIC.exe
Token: 33	2612	WMIC.exe
Token: 34	2612	WMIC.exe
Token: 35	2612	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2612	WMIC.exe
Token: SeSecurityPrivilege	2612	WMIC.exe
Token: SeTakeOwnershipPrivilege	2612	WMIC.exe
Token: SeLoadDriverPrivilege	2612	WMIC.exe
Token: SeSystemProfilePrivilege	2612	WMIC.exe
Token: SeSystemtimePrivilege	2612	WMIC.exe
Token: SeProfSingleProcessPrivilege	2612	WMIC.exe
Token: SeIncBasePriorityPrivilege	2612	WMIC.exe
Token: SeCreatePagefilePrivilege	2612	WMIC.exe
Token: SeBackupPrivilege	2612	WMIC.exe
Token: SeRestorePrivilege	2612	WMIC.exe
Token: SeShutdownPrivilege	2612	WMIC.exe
Token: SeDebugPrivilege	2612	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2612	WMIC.exe
Token: SeRemoteShutdownPrivilege	2612	WMIC.exe
Token: SeUndockPrivilege	2612	WMIC.exe
Token: SeManageVolumePrivilege	2612	WMIC.exe
Token: 33	2612	WMIC.exe
Token: 34	2612	WMIC.exe
Token: 35	2612	WMIC.exe
Token: SeBackupPrivilege	1528	wbengine.exe
Token: SeRestorePrivilege	1528	wbengine.exe
Token: SeSecurityPrivilege	1528	wbengine.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 344 wrote to memory of 2352	344	1b4d73a9a7c6d2163e7378c97f01fed223be9daa6acb71c81b11491907473f89.exe	30
PID 344 wrote to memory of 2352	344	1b4d73a9a7c6d2163e7378c97f01fed223be9daa6acb71c81b11491907473f89.exe	30
PID 344 wrote to memory of 2352	344	1b4d73a9a7c6d2163e7378c97f01fed223be9daa6acb71c81b11491907473f89.exe	30
PID 2352 wrote to memory of 2224	2352	svchost.exe	32
PID 2352 wrote to memory of 2224	2352	svchost.exe	32
PID 2352 wrote to memory of 2224	2352	svchost.exe	32
PID 2224 wrote to memory of 2144	2224	cmd.exe	34
PID 2224 wrote to memory of 2144	2224	cmd.exe	34
PID 2224 wrote to memory of 2144	2224	cmd.exe	34
PID 2224 wrote to memory of 2612	2224	cmd.exe	37
PID 2224 wrote to memory of 2612	2224	cmd.exe	37
PID 2224 wrote to memory of 2612	2224	cmd.exe	37
PID 2352 wrote to memory of 1696	2352	svchost.exe	39
PID 2352 wrote to memory of 1696	2352	svchost.exe	39
PID 2352 wrote to memory of 1696	2352	svchost.exe	39
PID 1696 wrote to memory of 2432	1696	cmd.exe	41
PID 1696 wrote to memory of 2432	1696	cmd.exe	41
PID 1696 wrote to memory of 2432	1696	cmd.exe	41
PID 1696 wrote to memory of 1936	1696	cmd.exe	42
PID 1696 wrote to memory of 1936	1696	cmd.exe	42
PID 1696 wrote to memory of 1936	1696	cmd.exe	42
PID 2352 wrote to memory of 2308	2352	svchost.exe	43
PID 2352 wrote to memory of 2308	2352	svchost.exe	43
PID 2352 wrote to memory of 2308	2352	svchost.exe	43
PID 2308 wrote to memory of 3000	2308	cmd.exe	45
PID 2308 wrote to memory of 3000	2308	cmd.exe	45
PID 2308 wrote to memory of 3000	2308	cmd.exe	45
PID 2352 wrote to memory of 2688	2352	svchost.exe	49
PID 2352 wrote to memory of 2688	2352	svchost.exe	49
PID 2352 wrote to memory of 2688	2352	svchost.exe	49

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\1b4d73a9a7c6d2163e7378c97f01fed223be9daa6acb71c81b11491907473f89.exe
"C:\Users\Admin\AppData\Local\Temp\1b4d73a9a7c6d2163e7378c97f01fed223be9daa6acb71c81b11491907473f89.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:344
- 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: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:2224
  - - C:\Windows\system32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:2144
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:2612
- - 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:1696
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:2432
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled no
      4⤵
      Modifies boot configuration data using bcdedit
      PID:1936
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2308
  - - C:\Windows\system32\wbadmin.exe
      wbadmin delete catalog -quiet
      4⤵
      Deletes backup catalog
      PID:3000
- - 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:2688

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

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1528

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:1976

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:1908

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

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
490KB

MD5
2d23c83d6941cf484da19d4367c02df0

SHA1
b63dd1f2e35d8944dee745321643f06037dfe95e

SHA256
1b4d73a9a7c6d2163e7378c97f01fed223be9daa6acb71c81b11491907473f89

SHA512
28a5d2df80e9a1c5eeb65938479b7b96f754feff28244f91304361bd4c238d533f01d37598eedc95c6549c9066c8f15b2ce16262e02ce944dd47ed6e123ef797

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

Filesize
1KB

MD5
65be09f680bae0e52ba74b45d94b1415

SHA1
e4c7a68e87f2d460ed9cd925e60f2c56b335d7f2

SHA256
a318e1070f4dbf17a17ca1eca5a86ec8ecb414526387ea0aeca17b8921dbe41b

SHA512
1402f0c863c7c71a9e5aaf8e9b6108d0b3a4ce4d14aa20f482b805642220990515ad38f254392ac42fc6aeb9c6532c9e6cca2a20d4133b56d86c05be52cce14e

Download Submit
memory/344-0-0x000007FEF5543000-0x000007FEF5544000-memory.dmp

Filesize
4KB

Download
memory/344-1-0x0000000000AC0000-0x0000000000B40000-memory.dmp

Filesize
512KB

Download
memory/2352-7-0x0000000000F60000-0x0000000000FE0000-memory.dmp

Filesize
512KB

Download
memory/2352-12-0x000007FEF5540000-0x000007FEF5F2C000-memory.dmp

Filesize
9.9MB

Download
memory/2352-22-0x000007FEF5540000-0x000007FEF5F2C000-memory.dmp

Filesize
9.9MB

Download
memory/2352-532-0x000007FEF5540000-0x000007FEF5F2C000-memory.dmp

Filesize
9.9MB

Download