chaos | c4bc2a209dfaaa141cf05eb00674366249d33b61a23c06091a3647515f903791

Analysis

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

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
06-09-2024 20:41

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2024-09-06_7f8f14557e21273304a2597621dd1fbc_destroyer_wannacry.exe
Size

21KB
MD5

7f8f14557e21273304a2597621dd1fbc
SHA1

858d52d1b0e3193cf9613f027e4b6a96074623c8
SHA256

c4bc2a209dfaaa141cf05eb00674366249d33b61a23c06091a3647515f903791
SHA512

0f9889e3116c1628cfff7799e7f74ad7b416d87f2e835e456ff88f1905159739062a19340d4d5b7b02dbae5de2f413e1de9ee5049366f4a5ab6b897c18141d12
SSDEEP

384:q3MLWHn3kIkfdw6mpoXsQuvdtKXRUJxr91CzAE7eS:un3kIampoNyfKXR8xr9iZeS

Score

10^/10

chaos defense_evasion evasion execution impact 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/2612-1-0x0000000000EF0000-0x0000000000EFC000-memory.dmp	family_chaos
behavioral1/files/0x000a0000000122ea-5.dat	family_chaos
behavioral1/memory/108-7-0x00000000002D0000-0x00000000002DC000-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
2120	bcdedit.exe
2112	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
2708	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
108	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\Pictures\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\Administrative Tools\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\Public\Music\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\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\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\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\Start Menu\Programs\Accessories\System Tools\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Documents\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\Links\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\AppData\Roaming\Microsoft\Windows\Libraries\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\Saved Games\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\Videos\Sample Videos\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\SendTo\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\Documents\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\Internet Explorer\Quick Launch\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\Downloads\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

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
2560	vssadmin.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
1520	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
108	svchost.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2612	2024-09-06_7f8f14557e21273304a2597621dd1fbc_destroyer_wannacry.exe
2612	2024-09-06_7f8f14557e21273304a2597621dd1fbc_destroyer_wannacry.exe
2612	2024-09-06_7f8f14557e21273304a2597621dd1fbc_destroyer_wannacry.exe
108	svchost.exe
108	svchost.exe
108	svchost.exe
108	svchost.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeDebugPrivilege	2612	2024-09-06_7f8f14557e21273304a2597621dd1fbc_destroyer_wannacry.exe
Token: SeDebugPrivilege	108	svchost.exe
Token: SeBackupPrivilege	2044	vssvc.exe
Token: SeRestorePrivilege	2044	vssvc.exe
Token: SeAuditPrivilege	2044	vssvc.exe
Token: SeIncreaseQuotaPrivilege	2408	WMIC.exe
Token: SeSecurityPrivilege	2408	WMIC.exe
Token: SeTakeOwnershipPrivilege	2408	WMIC.exe
Token: SeLoadDriverPrivilege	2408	WMIC.exe
Token: SeSystemProfilePrivilege	2408	WMIC.exe
Token: SeSystemtimePrivilege	2408	WMIC.exe
Token: SeProfSingleProcessPrivilege	2408	WMIC.exe
Token: SeIncBasePriorityPrivilege	2408	WMIC.exe
Token: SeCreatePagefilePrivilege	2408	WMIC.exe
Token: SeBackupPrivilege	2408	WMIC.exe
Token: SeRestorePrivilege	2408	WMIC.exe
Token: SeShutdownPrivilege	2408	WMIC.exe
Token: SeDebugPrivilege	2408	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2408	WMIC.exe
Token: SeRemoteShutdownPrivilege	2408	WMIC.exe
Token: SeUndockPrivilege	2408	WMIC.exe
Token: SeManageVolumePrivilege	2408	WMIC.exe
Token: 33	2408	WMIC.exe
Token: 34	2408	WMIC.exe
Token: 35	2408	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2408	WMIC.exe
Token: SeSecurityPrivilege	2408	WMIC.exe
Token: SeTakeOwnershipPrivilege	2408	WMIC.exe
Token: SeLoadDriverPrivilege	2408	WMIC.exe
Token: SeSystemProfilePrivilege	2408	WMIC.exe
Token: SeSystemtimePrivilege	2408	WMIC.exe
Token: SeProfSingleProcessPrivilege	2408	WMIC.exe
Token: SeIncBasePriorityPrivilege	2408	WMIC.exe
Token: SeCreatePagefilePrivilege	2408	WMIC.exe
Token: SeBackupPrivilege	2408	WMIC.exe
Token: SeRestorePrivilege	2408	WMIC.exe
Token: SeShutdownPrivilege	2408	WMIC.exe
Token: SeDebugPrivilege	2408	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2408	WMIC.exe
Token: SeRemoteShutdownPrivilege	2408	WMIC.exe
Token: SeUndockPrivilege	2408	WMIC.exe
Token: SeManageVolumePrivilege	2408	WMIC.exe
Token: 33	2408	WMIC.exe
Token: 34	2408	WMIC.exe
Token: 35	2408	WMIC.exe
Token: SeBackupPrivilege	1940	wbengine.exe
Token: SeRestorePrivilege	1940	wbengine.exe
Token: SeSecurityPrivilege	1940	wbengine.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2612 wrote to memory of 108	2612	2024-09-06_7f8f14557e21273304a2597621dd1fbc_destroyer_wannacry.exe	31
PID 2612 wrote to memory of 108	2612	2024-09-06_7f8f14557e21273304a2597621dd1fbc_destroyer_wannacry.exe	31
PID 2612 wrote to memory of 108	2612	2024-09-06_7f8f14557e21273304a2597621dd1fbc_destroyer_wannacry.exe	31
PID 108 wrote to memory of 2528	108	svchost.exe	32
PID 108 wrote to memory of 2528	108	svchost.exe	32
PID 108 wrote to memory of 2528	108	svchost.exe	32
PID 2528 wrote to memory of 2560	2528	cmd.exe	34
PID 2528 wrote to memory of 2560	2528	cmd.exe	34
PID 2528 wrote to memory of 2560	2528	cmd.exe	34
PID 2528 wrote to memory of 2408	2528	cmd.exe	38
PID 2528 wrote to memory of 2408	2528	cmd.exe	38
PID 2528 wrote to memory of 2408	2528	cmd.exe	38
PID 108 wrote to memory of 1864	108	svchost.exe	40
PID 108 wrote to memory of 1864	108	svchost.exe	40
PID 108 wrote to memory of 1864	108	svchost.exe	40
PID 1864 wrote to memory of 2120	1864	cmd.exe	42
PID 1864 wrote to memory of 2120	1864	cmd.exe	42
PID 1864 wrote to memory of 2120	1864	cmd.exe	42
PID 1864 wrote to memory of 2112	1864	cmd.exe	43
PID 1864 wrote to memory of 2112	1864	cmd.exe	43
PID 1864 wrote to memory of 2112	1864	cmd.exe	43
PID 108 wrote to memory of 1640	108	svchost.exe	44
PID 108 wrote to memory of 1640	108	svchost.exe	44
PID 108 wrote to memory of 1640	108	svchost.exe	44
PID 1640 wrote to memory of 2708	1640	cmd.exe	46
PID 1640 wrote to memory of 2708	1640	cmd.exe	46
PID 1640 wrote to memory of 2708	1640	cmd.exe	46
PID 108 wrote to memory of 1520	108	svchost.exe	50
PID 108 wrote to memory of 1520	108	svchost.exe	50
PID 108 wrote to memory of 1520	108	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\2024-09-06_7f8f14557e21273304a2597621dd1fbc_destroyer_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-06_7f8f14557e21273304a2597621dd1fbc_destroyer_wannacry.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2612
- 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:108
- - 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:2528
  - - C:\Windows\system32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:2560
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:2408
- - 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:1864
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:2120
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled no
      4⤵
      Modifies boot configuration data using bcdedit
      PID:2112
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1640
  - - C:\Windows\system32\wbadmin.exe
      wbadmin delete catalog -quiet
      4⤵
      Deletes backup catalog
      PID:2708
- - 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:1520

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2044

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1940

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:1172

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:1084

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

Loading Replay Monitor...

Downloads

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

Filesize
21KB

MD5
7f8f14557e21273304a2597621dd1fbc

SHA1
858d52d1b0e3193cf9613f027e4b6a96074623c8

SHA256
c4bc2a209dfaaa141cf05eb00674366249d33b61a23c06091a3647515f903791

SHA512
0f9889e3116c1628cfff7799e7f74ad7b416d87f2e835e456ff88f1905159739062a19340d4d5b7b02dbae5de2f413e1de9ee5049366f4a5ab6b897c18141d12

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

Filesize
8B

MD5
3b9cbc5c056777ac92d6a477c351270b

SHA1
5bea4efa5057d52a8444918f4d83df54ff07b9a6

SHA256
7f003fb767f2dbd78ef37c0437d771631a7ebdb59ec230fd3040be007f22261e

SHA512
ee640e148152441897b188657adc5e176042d4965e5fe9997d50c1ec83b80c0dd54e67f052973cbc4a4cc0e5cbe2a24ed38538f2c2f10f04a043f853cc12aecb

Download Submit
memory/108-7-0x00000000002D0000-0x00000000002DC000-memory.dmp

Filesize
48KB

Download
memory/108-20-0x000007FEF53C0000-0x000007FEF5DAC000-memory.dmp

Filesize
9.9MB

Download
memory/108-75-0x000007FEF53C0000-0x000007FEF5DAC000-memory.dmp

Filesize
9.9MB

Download
memory/108-76-0x000007FEF53C0000-0x000007FEF5DAC000-memory.dmp

Filesize
9.9MB

Download
memory/2612-0-0x000007FEF53C3000-0x000007FEF53C4000-memory.dmp

Filesize
4KB

Download
memory/2612-1-0x0000000000EF0000-0x0000000000EFC000-memory.dmp

Filesize
48KB

Download