chaos | 93e27f3c219edee9e18c570fc1b36c0fae0e3b06cbbe85bd9afb4fe7d11d03ea

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
27-04-2024 05:36

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General

Target

2024-04-27_d0cf727c46e2ee5dbf57063d3ae85dfd_destroyer_wannacry.exe
Size

22KB
MD5

d0cf727c46e2ee5dbf57063d3ae85dfd
SHA1

e5fab1e8a3954970331f415e5bcb7cdc2ad678d3
SHA256

93e27f3c219edee9e18c570fc1b36c0fae0e3b06cbbe85bd9afb4fe7d11d03ea
SHA512

da7b19ec144f69594d66b46c5e24adeccbd4bd2d13bc04be4030f4464978f2d8263dcfffe9392d684ecd5d918366d5c6236e39a9d47be18e4b166091448fc326
SSDEEP

384:p3MLWHn3kITf5o1CWpW23+rJVr91CrNveg:Jn3kIhWpW2CVr9Sxeg

Score

10^/10

chaos evasion ransomware spyware stealer

Malware Config

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 3 IoCs

resource	yara_rule
behavioral1/memory/2952-0-0x0000000001120000-0x000000000112C000-memory.dmp	family_chaos
behavioral1/files/0x000c00000001470b-5.dat	family_chaos
behavioral1/memory/2484-7-0x0000000000370000-0x000000000037C000-memory.dmp	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

Detects command variations typically used by ransomware 3 IoCs

resource	yara_rule
behavioral1/memory/2952-0-0x0000000001120000-0x000000000112C000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/files/0x000c00000001470b-5.dat	INDICATOR_SUSPICIOUS_GENRansomware
behavioral1/memory/2484-7-0x0000000000370000-0x000000000037C000-memory.dmp	INDICATOR_SUSPICIOUS_GENRansomware

Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs

ransomware evasion

Inhibit System Recovery

T1490

pid	Process
1844	bcdedit.exe
2116	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
2004	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\Wifi_pass_wire	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2484	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\Links\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\Libraries\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\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\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\Recent\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\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\Public\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
File opened for modification	C:\Users\Public\Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Links\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\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\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\Windows\Start Menu\Programs\Accessories\Accessibility\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\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\Contacts\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	svchost.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-2297530677-1229052932-2803917579-1000\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\Administrative Tools\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

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
2112	vssadmin.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2484	svchost.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2952	2024-04-27_d0cf727c46e2ee5dbf57063d3ae85dfd_destroyer_wannacry.exe
2952	2024-04-27_d0cf727c46e2ee5dbf57063d3ae85dfd_destroyer_wannacry.exe
2484	svchost.exe
2484	svchost.exe
2484	svchost.exe
2484	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1004	AcroRd32.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeDebugPrivilege	2952	2024-04-27_d0cf727c46e2ee5dbf57063d3ae85dfd_destroyer_wannacry.exe
Token: SeDebugPrivilege	2484	svchost.exe
Token: SeBackupPrivilege	2204	vssvc.exe
Token: SeRestorePrivilege	2204	vssvc.exe
Token: SeAuditPrivilege	2204	vssvc.exe
Token: SeIncreaseQuotaPrivilege	2940	WMIC.exe
Token: SeSecurityPrivilege	2940	WMIC.exe
Token: SeTakeOwnershipPrivilege	2940	WMIC.exe
Token: SeLoadDriverPrivilege	2940	WMIC.exe
Token: SeSystemProfilePrivilege	2940	WMIC.exe
Token: SeSystemtimePrivilege	2940	WMIC.exe
Token: SeProfSingleProcessPrivilege	2940	WMIC.exe
Token: SeIncBasePriorityPrivilege	2940	WMIC.exe
Token: SeCreatePagefilePrivilege	2940	WMIC.exe
Token: SeBackupPrivilege	2940	WMIC.exe
Token: SeRestorePrivilege	2940	WMIC.exe
Token: SeShutdownPrivilege	2940	WMIC.exe
Token: SeDebugPrivilege	2940	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2940	WMIC.exe
Token: SeRemoteShutdownPrivilege	2940	WMIC.exe
Token: SeUndockPrivilege	2940	WMIC.exe
Token: SeManageVolumePrivilege	2940	WMIC.exe
Token: 33	2940	WMIC.exe
Token: 34	2940	WMIC.exe
Token: 35	2940	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2940	WMIC.exe
Token: SeSecurityPrivilege	2940	WMIC.exe
Token: SeTakeOwnershipPrivilege	2940	WMIC.exe
Token: SeLoadDriverPrivilege	2940	WMIC.exe
Token: SeSystemProfilePrivilege	2940	WMIC.exe
Token: SeSystemtimePrivilege	2940	WMIC.exe
Token: SeProfSingleProcessPrivilege	2940	WMIC.exe
Token: SeIncBasePriorityPrivilege	2940	WMIC.exe
Token: SeCreatePagefilePrivilege	2940	WMIC.exe
Token: SeBackupPrivilege	2940	WMIC.exe
Token: SeRestorePrivilege	2940	WMIC.exe
Token: SeShutdownPrivilege	2940	WMIC.exe
Token: SeDebugPrivilege	2940	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2940	WMIC.exe
Token: SeRemoteShutdownPrivilege	2940	WMIC.exe
Token: SeUndockPrivilege	2940	WMIC.exe
Token: SeManageVolumePrivilege	2940	WMIC.exe
Token: 33	2940	WMIC.exe
Token: 34	2940	WMIC.exe
Token: 35	2940	WMIC.exe
Token: SeBackupPrivilege	1828	wbengine.exe
Token: SeRestorePrivilege	1828	wbengine.exe
Token: SeSecurityPrivilege	1828	wbengine.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1004	AcroRd32.exe
1004	AcroRd32.exe

Suspicious use of WriteProcessMemory 34 IoCs

description	pid	Process	procid_target
PID 2952 wrote to memory of 2484	2952	2024-04-27_d0cf727c46e2ee5dbf57063d3ae85dfd_destroyer_wannacry.exe	28
PID 2952 wrote to memory of 2484	2952	2024-04-27_d0cf727c46e2ee5dbf57063d3ae85dfd_destroyer_wannacry.exe	28
PID 2952 wrote to memory of 2484	2952	2024-04-27_d0cf727c46e2ee5dbf57063d3ae85dfd_destroyer_wannacry.exe	28
PID 2484 wrote to memory of 2868	2484	svchost.exe	29
PID 2484 wrote to memory of 2868	2484	svchost.exe	29
PID 2484 wrote to memory of 2868	2484	svchost.exe	29
PID 2868 wrote to memory of 2112	2868	cmd.exe	31
PID 2868 wrote to memory of 2112	2868	cmd.exe	31
PID 2868 wrote to memory of 2112	2868	cmd.exe	31
PID 2868 wrote to memory of 2940	2868	cmd.exe	35
PID 2868 wrote to memory of 2940	2868	cmd.exe	35
PID 2868 wrote to memory of 2940	2868	cmd.exe	35
PID 2484 wrote to memory of 2248	2484	svchost.exe	37
PID 2484 wrote to memory of 2248	2484	svchost.exe	37
PID 2484 wrote to memory of 2248	2484	svchost.exe	37
PID 2248 wrote to memory of 1844	2248	cmd.exe	39
PID 2248 wrote to memory of 1844	2248	cmd.exe	39
PID 2248 wrote to memory of 1844	2248	cmd.exe	39
PID 2248 wrote to memory of 2116	2248	cmd.exe	40
PID 2248 wrote to memory of 2116	2248	cmd.exe	40
PID 2248 wrote to memory of 2116	2248	cmd.exe	40
PID 2484 wrote to memory of 2236	2484	svchost.exe	41
PID 2484 wrote to memory of 2236	2484	svchost.exe	41
PID 2484 wrote to memory of 2236	2484	svchost.exe	41
PID 2236 wrote to memory of 2004	2236	cmd.exe	43
PID 2236 wrote to memory of 2004	2236	cmd.exe	43
PID 2236 wrote to memory of 2004	2236	cmd.exe	43
PID 2484 wrote to memory of 1496	2484	svchost.exe	47
PID 2484 wrote to memory of 1496	2484	svchost.exe	47
PID 2484 wrote to memory of 1496	2484	svchost.exe	47
PID 1496 wrote to memory of 1004	1496	rundll32.exe	49
PID 1496 wrote to memory of 1004	1496	rundll32.exe	49
PID 1496 wrote to memory of 1004	1496	rundll32.exe	49
PID 1496 wrote to memory of 1004	1496	rundll32.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\2024-04-27_d0cf727c46e2ee5dbf57063d3ae85dfd_destroyer_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-27_d0cf727c46e2ee5dbf57063d3ae85dfd_destroyer_wannacry.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2952
- 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:2484
- - 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:2868
  - - C:\Windows\system32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:2112
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:2940
- - 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:2248
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:1844
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled no
      4⤵
      Modifies boot configuration data using bcdedit
      PID:2116
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2236
  - - C:\Windows\system32\wbadmin.exe
      wbadmin delete catalog -quiet
      4⤵
      Deletes backup catalog
      PID:2004
- - C:\Windows\system32\rundll32.exe
    "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Roaming\Wifi_pass_wire
    3⤵
    - Modifies registry class
    - Suspicious use of WriteProcessMemory
    PID:1496
  - - C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
      "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Roaming\Wifi_pass_wire"
      4⤵
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of SetWindowsHookEx
      PID:1004

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2204

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1828

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:696

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:1428

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

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\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
c8ef73697066c7f58aa1f2b60bc89d97

SHA1
b20ed7c6f8ac6c1382db135ada2b268c76019085

SHA256
dc438137e049df578b7285105ff97de8f64d9b10fcb9bea96698152cd7aacf33

SHA512
0b65d3c6250d9e24b4821423f04dd48d71e54cc558a17f5698cf535c595f2dc2bcfb80eb7752de7f6b6e12dfa9d5b4250e2d3de805908e9fc5adab235a8af81d

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

Filesize
22KB

MD5
d0cf727c46e2ee5dbf57063d3ae85dfd

SHA1
e5fab1e8a3954970331f415e5bcb7cdc2ad678d3

SHA256
93e27f3c219edee9e18c570fc1b36c0fae0e3b06cbbe85bd9afb4fe7d11d03ea

SHA512
da7b19ec144f69594d66b46c5e24adeccbd4bd2d13bc04be4030f4464978f2d8263dcfffe9392d684ecd5d918366d5c6236e39a9d47be18e4b166091448fc326

Download Submit
C:\Users\Admin\Desktop\Wifi_pass_wire

Filesize
605B

MD5
a411951ff9b7937383e1b22fb21933a1

SHA1
77e1ecf2a0b716a8a662a9f51be8db019acc3130

SHA256
669cdc2df83b48699813a1087c2662f0449f1a27d9a214e8a688435bfb3c4f93

SHA512
cc04656f91185ec8be78479554fdc0f5de2e8302c0a5023aa80814c692e8d85b7ed969300ffe872be230391248e2ca756c6bf769a3f520b68826b4c1ca1e6754

Download Submit
memory/2484-7-0x0000000000370000-0x000000000037C000-memory.dmp

Filesize
48KB

Download
memory/2484-9-0x000007FEF58E0000-0x000007FEF62CC000-memory.dmp

Filesize
9.9MB

Download
memory/2484-73-0x000000001AE20000-0x000000001AEA0000-memory.dmp

Filesize
512KB

Download
memory/2484-92-0x000007FEF58E0000-0x000007FEF62CC000-memory.dmp

Filesize
9.9MB

Download
memory/2484-93-0x000000001AE20000-0x000000001AEA0000-memory.dmp

Filesize
512KB

Download
memory/2952-0-0x0000000001120000-0x000000000112C000-memory.dmp

Filesize
48KB

Download
memory/2952-1-0x000007FEF58E0000-0x000007FEF62CC000-memory.dmp

Filesize
9.9MB

Download
memory/2952-8-0x000007FEF58E0000-0x000007FEF62CC000-memory.dmp

Filesize
9.9MB

Download