chaos | 9aa3fd69ed9705c41e970db7655d1e810721b675bf339d77a14399675df718c6

Resubmissions

18-09-2024 23:34

240918-3kexqsyhlp 10

18-09-2024 23:21

240918-3b6dbsydrn 10

Analysis

max time kernel
41s
max time network
17s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
18-09-2024 23:34

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General

Target

2024-09-18_5b46e400dc8116704f94c89181c5d046_destroyer_wannacry.exe
Size

23KB
MD5

5b46e400dc8116704f94c89181c5d046
SHA1

d9bcafd992d27f6b4aef3fe8dea486cb79a227b8
SHA256

9aa3fd69ed9705c41e970db7655d1e810721b675bf339d77a14399675df718c6
SHA512

1399d3fa6a8e435628a70469c252da5212f854f138c4975d3844f91ff77fc97e14df1d7e2948020e25dc79ee7a730330b9b2c04f283c3aa0e9f4a952dd872d35
SSDEEP

384:w3Mg/bqo2XH45tYPpcAL34+X0Z/yJ3r91Co5+IBHreQ:Oqo2X4rmpc+4+kRm3r9NoIBLeQ

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

All of your files have been stolen and encrypted. in a nutshell you're Hacked You can try whatever you wanna try but don't modify the files, they'll be damaged and impossible to decrypt. it's nothing personal, it's all about money. have a great day. Payment information Non payment will result in your data being published. YOU HAVE 7 DAYS, AFTER 3 DAYS THE MONEY DOUBLES. Bitcoin Address: bc1qpn32q8a3jykzpfnrv6crqulk7wguaryhxzadqa You must contact us using Tox messenger, download it here> https://tox.chat/download.html. Invite us on Tox, Our Tox ID : EEC1A34EA55C1DBC63D8BCC4779D93BB64FC9036C82210467DEB1948A3ABC2248CE1CAB7A181 You need contact us and decrypt one file for free on TOX messenger with your personal DECRYPTION ID 5747

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/2088-1-0x0000000000A30000-0x0000000000A3C000-memory.dmp	family_chaos
behavioral1/files/0x000700000001211b-5.dat	family_chaos
behavioral1/memory/1660-7-0x0000000000BD0000-0x0000000000BDC000-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
672	bcdedit.exe
1096	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
988	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
1660	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\Public\Pictures\Sample Pictures\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\Favorites\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Searches\desktop.ini	svchost.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-3434294380-2554721341-1919518612-1000\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\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\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\Links for United States\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\Public\Videos\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Music\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\Desktop\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\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\Accessories\Accessibility\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\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\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\Programs\Administrative Tools\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Pictures\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\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\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
1444	vssadmin.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
1672	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1660	svchost.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2088	2024-09-18_5b46e400dc8116704f94c89181c5d046_destroyer_wannacry.exe
2088	2024-09-18_5b46e400dc8116704f94c89181c5d046_destroyer_wannacry.exe
2088	2024-09-18_5b46e400dc8116704f94c89181c5d046_destroyer_wannacry.exe
1660	svchost.exe
1660	svchost.exe
1660	svchost.exe
1660	svchost.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeDebugPrivilege	2088	2024-09-18_5b46e400dc8116704f94c89181c5d046_destroyer_wannacry.exe
Token: SeDebugPrivilege	1660	svchost.exe
Token: SeBackupPrivilege	756	vssvc.exe
Token: SeRestorePrivilege	756	vssvc.exe
Token: SeAuditPrivilege	756	vssvc.exe
Token: SeIncreaseQuotaPrivilege	2256	WMIC.exe
Token: SeSecurityPrivilege	2256	WMIC.exe
Token: SeTakeOwnershipPrivilege	2256	WMIC.exe
Token: SeLoadDriverPrivilege	2256	WMIC.exe
Token: SeSystemProfilePrivilege	2256	WMIC.exe
Token: SeSystemtimePrivilege	2256	WMIC.exe
Token: SeProfSingleProcessPrivilege	2256	WMIC.exe
Token: SeIncBasePriorityPrivilege	2256	WMIC.exe
Token: SeCreatePagefilePrivilege	2256	WMIC.exe
Token: SeBackupPrivilege	2256	WMIC.exe
Token: SeRestorePrivilege	2256	WMIC.exe
Token: SeShutdownPrivilege	2256	WMIC.exe
Token: SeDebugPrivilege	2256	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2256	WMIC.exe
Token: SeRemoteShutdownPrivilege	2256	WMIC.exe
Token: SeUndockPrivilege	2256	WMIC.exe
Token: SeManageVolumePrivilege	2256	WMIC.exe
Token: 33	2256	WMIC.exe
Token: 34	2256	WMIC.exe
Token: 35	2256	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2256	WMIC.exe
Token: SeSecurityPrivilege	2256	WMIC.exe
Token: SeTakeOwnershipPrivilege	2256	WMIC.exe
Token: SeLoadDriverPrivilege	2256	WMIC.exe
Token: SeSystemProfilePrivilege	2256	WMIC.exe
Token: SeSystemtimePrivilege	2256	WMIC.exe
Token: SeProfSingleProcessPrivilege	2256	WMIC.exe
Token: SeIncBasePriorityPrivilege	2256	WMIC.exe
Token: SeCreatePagefilePrivilege	2256	WMIC.exe
Token: SeBackupPrivilege	2256	WMIC.exe
Token: SeRestorePrivilege	2256	WMIC.exe
Token: SeShutdownPrivilege	2256	WMIC.exe
Token: SeDebugPrivilege	2256	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2256	WMIC.exe
Token: SeRemoteShutdownPrivilege	2256	WMIC.exe
Token: SeUndockPrivilege	2256	WMIC.exe
Token: SeManageVolumePrivilege	2256	WMIC.exe
Token: 33	2256	WMIC.exe
Token: 34	2256	WMIC.exe
Token: 35	2256	WMIC.exe
Token: SeBackupPrivilege	2052	wbengine.exe
Token: SeRestorePrivilege	2052	wbengine.exe
Token: SeSecurityPrivilege	2052	wbengine.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2088 wrote to memory of 1660	2088	2024-09-18_5b46e400dc8116704f94c89181c5d046_destroyer_wannacry.exe	31
PID 2088 wrote to memory of 1660	2088	2024-09-18_5b46e400dc8116704f94c89181c5d046_destroyer_wannacry.exe	31
PID 2088 wrote to memory of 1660	2088	2024-09-18_5b46e400dc8116704f94c89181c5d046_destroyer_wannacry.exe	31
PID 1660 wrote to memory of 1948	1660	svchost.exe	33
PID 1660 wrote to memory of 1948	1660	svchost.exe	33
PID 1660 wrote to memory of 1948	1660	svchost.exe	33
PID 1948 wrote to memory of 1444	1948	cmd.exe	35
PID 1948 wrote to memory of 1444	1948	cmd.exe	35
PID 1948 wrote to memory of 1444	1948	cmd.exe	35
PID 1948 wrote to memory of 2256	1948	cmd.exe	38
PID 1948 wrote to memory of 2256	1948	cmd.exe	38
PID 1948 wrote to memory of 2256	1948	cmd.exe	38
PID 1660 wrote to memory of 1232	1660	svchost.exe	40
PID 1660 wrote to memory of 1232	1660	svchost.exe	40
PID 1660 wrote to memory of 1232	1660	svchost.exe	40
PID 1232 wrote to memory of 672	1232	cmd.exe	42
PID 1232 wrote to memory of 672	1232	cmd.exe	42
PID 1232 wrote to memory of 672	1232	cmd.exe	42
PID 1232 wrote to memory of 1096	1232	cmd.exe	43
PID 1232 wrote to memory of 1096	1232	cmd.exe	43
PID 1232 wrote to memory of 1096	1232	cmd.exe	43
PID 1660 wrote to memory of 2140	1660	svchost.exe	44
PID 1660 wrote to memory of 2140	1660	svchost.exe	44
PID 1660 wrote to memory of 2140	1660	svchost.exe	44
PID 2140 wrote to memory of 988	2140	cmd.exe	46
PID 2140 wrote to memory of 988	2140	cmd.exe	46
PID 2140 wrote to memory of 988	2140	cmd.exe	46
PID 1660 wrote to memory of 1672	1660	svchost.exe	50
PID 1660 wrote to memory of 1672	1660	svchost.exe	50
PID 1660 wrote to memory of 1672	1660	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\2024-09-18_5b46e400dc8116704f94c89181c5d046_destroyer_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-18_5b46e400dc8116704f94c89181c5d046_destroyer_wannacry.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2088
- 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:1660
- - 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:1948
  - - C:\Windows\system32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:1444
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:2256
- - 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:1232
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:672
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled no
      4⤵
      Modifies boot configuration data using bcdedit
      PID:1096
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2140
  - - C:\Windows\system32\wbadmin.exe
      wbadmin delete catalog -quiet
      4⤵
      Deletes backup catalog
      PID:988
- - 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:1672

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:756

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2052

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:1984

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:2372

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

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

Filesize
23KB

MD5
5b46e400dc8116704f94c89181c5d046

SHA1
d9bcafd992d27f6b4aef3fe8dea486cb79a227b8

SHA256
9aa3fd69ed9705c41e970db7655d1e810721b675bf339d77a14399675df718c6

SHA512
1399d3fa6a8e435628a70469c252da5212f854f138c4975d3844f91ff77fc97e14df1d7e2948020e25dc79ee7a730330b9b2c04f283c3aa0e9f4a952dd872d35

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

Filesize
754B

MD5
95b768856b2de34a69c96f29dead1912

SHA1
05bbb06ce4ab6f6607a2f1a1176c53a05bc5970e

SHA256
b7758a672f173bfed32e6f8a423a80362625e42d307f8d990173c49edf6b777d

SHA512
52302aaeabf76a826554e9551cd37f08583e46b07cce3c9e711e1aebaec3c2c1b66d4fe6ac5bafb7ef45f3e27344b4d8af57246c8f8b93ca1c7a433b2752527b

Download Submit
memory/1660-7-0x0000000000BD0000-0x0000000000BDC000-memory.dmp

Filesize
48KB

Download
memory/1660-45-0x000007FEF5EF0000-0x000007FEF68DC000-memory.dmp

Filesize
9.9MB

Download
memory/1660-48-0x000007FEF5EF0000-0x000007FEF68DC000-memory.dmp

Filesize
9.9MB

Download
memory/1660-495-0x000007FEF5EF0000-0x000007FEF68DC000-memory.dmp

Filesize
9.9MB

Download
memory/2088-0-0x000007FEF5EF3000-0x000007FEF5EF4000-memory.dmp

Filesize
4KB

Download
memory/2088-1-0x0000000000A30000-0x0000000000A3C000-memory.dmp

Filesize
48KB

Download