chaos | a37e08164fbf4bcfe5e4a8b818ec45b150f0e4206a1ecb84489a5e34c7d528cb

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
16/09/2024, 15:24

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General

Target
2024-09-16_9a0a653a28144ed4aef29c405eed6cd5_destroyer_wannacry.exe
Size 26KB
Sample240916-ss86favelm
SHA256 a37e08164fbf4bcfe5e4a8b818ec45b150f0e4206a1ecb84489a5e34c7d528cb
MD5 9a0a653a28144ed4aef29c405eed6cd5
SHA1 80b6f3d4ea6efd4bec02cb6864a179ffcbf7ea5e
SHA512 0a98cd89d9693f7984826f0ed4cb54bf359415b2a203fc19631c12d982cd5b80c160e8b7315689cbb2df9a1eac0e79d99df0c82bd86662f7916020177eba17e7
SSDEEP 384:A3Mg/bqo2vLPQUvuIqpm9FOjUJnr91Cep4DqHaQ0jseO:+qo2MU0pIOj8nr9N+DqHEIeO
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

chaos defense_evasion evasion execution impact ransomware spyware stealer

Malware Config

Extracted

Path

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

Ransom Note

Your data are stolen and encrypted The data will be published on TOR website if you do not pay the ransom >>>> What guarantees that we will not deceive you? We are not a politically motivated group and we do not need anything other than your money. If you pay, we will provide you the programs for decryption and we will delete your data. Life is too short to be sad. Be not sad, money, it is only paper. If we do not give you decrypters, or we do not delete your data after payment, then nobody will pay us in the future. Therefore to us our reputation is very important. We attack the companies worldwide and there is no dissatisfied victim after payment. >>>> You need contact us and decrypt one file for free on these TOR sites with your personal DECRYPTION ID Tox ID: EEC1A34EA55C1DBC63D8BCC4779D93BB64FC9036C82210467DEB1948A3ABC2248CE1CAB7A181 Your personal DECRYPTION ID: 10211 >>>> Warning! Do not DELETE or MODIFY any files, it can lead to recovery problems! >>>> Warning! If you do not pay the ransom we will attack your company repeatedly again! >>>> Advertisement Would you like to earn millions of dollars $$$ ? Our company acquire access to networks of various companies, as well as insider information that can help you steal the most valuable data of any company. You can provide us accounting data for the access to any company, for example, login and password to RDP, VPN, corporate email, etc. Open our letter at your email. Launch the provided virus on any computer in your company. You can do it both using your work computer or the computer of any other employee in order to divert suspicion of being in collusion with us. Companies pay us the foreclosure for the decryption of files and prevention of data leak. You can contact us using Tox messenger without registration and SMS https://tox.chat/download.html. Using Tox messenger, we will never know your real name, it means your privacy is guaranteed. If you want to contact us, write in tox. Tox ID : EEC1A34EA55C1DBC63D8BCC4779D93BB64FC9036C82210467DEB1948A3ABC2248CE1CAB7A181

URLs

https://tox.chat/download.html

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 3 IoCs

resource	yara_rule
behavioral1/memory/1128-1-0x0000000000880000-0x000000000088C000-memory.dmp	family_chaos
behavioral1/files/0x000c0000000122e4-5.dat	family_chaos
behavioral1/memory/2316-7-0x0000000000A30000-0x0000000000A3C000-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
2216	bcdedit.exe
1540	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
3020	wbadmin.exe

Drops startup file 3 IoCs

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

Executes dropped EXE 1 IoCs

pid	Process
2316	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\Music\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\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\Sample Music\desktop.ini	svchost.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-1488793075-819845221-1497111674-1000\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Contacts\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\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\Saved Games\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Favorites\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\Sample Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Links\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Pictures\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\SendTo\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\Libraries\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\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\Desktop\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\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\Favorites\Links for United States\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\Accessories\System Tools\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Videos\desktop.ini	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
2412	vssadmin.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
1704	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2316	svchost.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
1128	2024-09-16_9a0a653a28144ed4aef29c405eed6cd5_destroyer_wannacry.exe
1128	2024-09-16_9a0a653a28144ed4aef29c405eed6cd5_destroyer_wannacry.exe
1128	2024-09-16_9a0a653a28144ed4aef29c405eed6cd5_destroyer_wannacry.exe
2316	svchost.exe
2316	svchost.exe
2316	svchost.exe
2316	svchost.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeDebugPrivilege	1128	2024-09-16_9a0a653a28144ed4aef29c405eed6cd5_destroyer_wannacry.exe
Token: SeDebugPrivilege	2316	svchost.exe
Token: SeBackupPrivilege	2928	vssvc.exe
Token: SeRestorePrivilege	2928	vssvc.exe
Token: SeAuditPrivilege	2928	vssvc.exe
Token: SeIncreaseQuotaPrivilege	1820	WMIC.exe
Token: SeSecurityPrivilege	1820	WMIC.exe
Token: SeTakeOwnershipPrivilege	1820	WMIC.exe
Token: SeLoadDriverPrivilege	1820	WMIC.exe
Token: SeSystemProfilePrivilege	1820	WMIC.exe
Token: SeSystemtimePrivilege	1820	WMIC.exe
Token: SeProfSingleProcessPrivilege	1820	WMIC.exe
Token: SeIncBasePriorityPrivilege	1820	WMIC.exe
Token: SeCreatePagefilePrivilege	1820	WMIC.exe
Token: SeBackupPrivilege	1820	WMIC.exe
Token: SeRestorePrivilege	1820	WMIC.exe
Token: SeShutdownPrivilege	1820	WMIC.exe
Token: SeDebugPrivilege	1820	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1820	WMIC.exe
Token: SeRemoteShutdownPrivilege	1820	WMIC.exe
Token: SeUndockPrivilege	1820	WMIC.exe
Token: SeManageVolumePrivilege	1820	WMIC.exe
Token: 33	1820	WMIC.exe
Token: 34	1820	WMIC.exe
Token: 35	1820	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1820	WMIC.exe
Token: SeSecurityPrivilege	1820	WMIC.exe
Token: SeTakeOwnershipPrivilege	1820	WMIC.exe
Token: SeLoadDriverPrivilege	1820	WMIC.exe
Token: SeSystemProfilePrivilege	1820	WMIC.exe
Token: SeSystemtimePrivilege	1820	WMIC.exe
Token: SeProfSingleProcessPrivilege	1820	WMIC.exe
Token: SeIncBasePriorityPrivilege	1820	WMIC.exe
Token: SeCreatePagefilePrivilege	1820	WMIC.exe
Token: SeBackupPrivilege	1820	WMIC.exe
Token: SeRestorePrivilege	1820	WMIC.exe
Token: SeShutdownPrivilege	1820	WMIC.exe
Token: SeDebugPrivilege	1820	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1820	WMIC.exe
Token: SeRemoteShutdownPrivilege	1820	WMIC.exe
Token: SeUndockPrivilege	1820	WMIC.exe
Token: SeManageVolumePrivilege	1820	WMIC.exe
Token: 33	1820	WMIC.exe
Token: 34	1820	WMIC.exe
Token: 35	1820	WMIC.exe
Token: SeBackupPrivilege	1012	wbengine.exe
Token: SeRestorePrivilege	1012	wbengine.exe
Token: SeSecurityPrivilege	1012	wbengine.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1128 wrote to memory of 2316	1128	2024-09-16_9a0a653a28144ed4aef29c405eed6cd5_destroyer_wannacry.exe	31
PID 1128 wrote to memory of 2316	1128	2024-09-16_9a0a653a28144ed4aef29c405eed6cd5_destroyer_wannacry.exe	31
PID 1128 wrote to memory of 2316	1128	2024-09-16_9a0a653a28144ed4aef29c405eed6cd5_destroyer_wannacry.exe	31
PID 2316 wrote to memory of 1924	2316	svchost.exe	33
PID 2316 wrote to memory of 1924	2316	svchost.exe	33
PID 2316 wrote to memory of 1924	2316	svchost.exe	33
PID 1924 wrote to memory of 2412	1924	cmd.exe	35
PID 1924 wrote to memory of 2412	1924	cmd.exe	35
PID 1924 wrote to memory of 2412	1924	cmd.exe	35
PID 1924 wrote to memory of 1820	1924	cmd.exe	38
PID 1924 wrote to memory of 1820	1924	cmd.exe	38
PID 1924 wrote to memory of 1820	1924	cmd.exe	38
PID 2316 wrote to memory of 1524	2316	svchost.exe	40
PID 2316 wrote to memory of 1524	2316	svchost.exe	40
PID 2316 wrote to memory of 1524	2316	svchost.exe	40
PID 1524 wrote to memory of 2216	1524	cmd.exe	42
PID 1524 wrote to memory of 2216	1524	cmd.exe	42
PID 1524 wrote to memory of 2216	1524	cmd.exe	42
PID 1524 wrote to memory of 1540	1524	cmd.exe	43
PID 1524 wrote to memory of 1540	1524	cmd.exe	43
PID 1524 wrote to memory of 1540	1524	cmd.exe	43
PID 2316 wrote to memory of 2380	2316	svchost.exe	44
PID 2316 wrote to memory of 2380	2316	svchost.exe	44
PID 2316 wrote to memory of 2380	2316	svchost.exe	44
PID 2380 wrote to memory of 3020	2380	cmd.exe	46
PID 2380 wrote to memory of 3020	2380	cmd.exe	46
PID 2380 wrote to memory of 3020	2380	cmd.exe	46
PID 2316 wrote to memory of 1704	2316	svchost.exe	50
PID 2316 wrote to memory of 1704	2316	svchost.exe	50
PID 2316 wrote to memory of 1704	2316	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\2024-09-16_9a0a653a28144ed4aef29c405eed6cd5_destroyer_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-16_9a0a653a28144ed4aef29c405eed6cd5_destroyer_wannacry.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1128
- 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)
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2316
- - 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:1924
  - - C:\Windows\system32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:2412
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:1820
- - 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:1524
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:2216
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled no
      4⤵
      Modifies boot configuration data using bcdedit
      PID:1540
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2380
  - - C:\Windows\system32\wbadmin.exe
      wbadmin delete catalog -quiet
      4⤵
      Deletes backup catalog
      PID:3020
- - 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:1704

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2928

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1012

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:2488

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:2352

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

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

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

svchost.exe

Path C:\Users\Admin\AppData\Roaming\svchost.exe
Size 26KB
SHA256 a37e08164fbf4bcfe5e4a8b818ec45b150f0e4206a1ecb84489a5e34c7d528cb
MD5 9a0a653a28144ed4aef29c405eed6cd5
SHA1 80b6f3d4ea6efd4bec02cb6864a179ffcbf7ea5e
SHA512 0a98cd89d9693f7984826f0ed4cb54bf359415b2a203fc19631c12d982cd5b80c160e8b7315689cbb2df9a1eac0e79d99df0c82bd86662f7916020177eba17e7
SSDEEP 384:A3Mg/bqo2vLPQUvuIqpm9FOjUJnr91Cep4DqHaQ0jseO:+qo2MU0pIOj8nr9N+DqHEIeO
MD5 SHA1 SHA512 SSDEEP

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read_it.txt

Path C:\Users\Admin\Documents\read_it.txt
Size 2KB
SHA256 3ddc818e4b33b6b08abee5564011530939aa8a6f601ec00d672a31aeab9bf09f
MD5 054c24bebee63e5f3cbbbf70b8548942
SHA1 5a2e4f1882f7c76dce6b4d2b610485ae5852789d
SHA512 3168fcd8340945458503f35aa482f378435d3929eba614b5af61a4191bf83a39b231fc947b54539f9553e43f9f5125ba51b872bc84b783c1fa77b38a30ed3094
MD5 SHA1 SHA512

Submit Download

memory/1128-0-0x000007FEF56A3000-0x000007FEF56A4000-memory.dmp

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memory/1128-1-0x0000000000880000-0x000000000088C000-memory.dmp

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memory/2316-7-0x0000000000A30000-0x0000000000A3C000-memory.dmp

Download

memory/2316-9-0x000007FEF56A0000-0x000007FEF608C000-memory.dmp

Download

memory/2316-10-0x000007FEF56A0000-0x000007FEF608C000-memory.dmp

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memory/2316-535-0x000007FEF56A0000-0x000007FEF608C000-memory.dmp

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