chaos | f527c0f6f450394b45e18c44c107fe325cadf6317cf1e826f0a3141981cca031

Analysis

max time kernel
117s
max time network
119s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
23/07/2024, 16:25

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General

Target

2024-07-23_7464d5fe58d9a1423dc89d2e14a0b44d_destroyer_wannacry.exe
Size

21KB
MD5

7464d5fe58d9a1423dc89d2e14a0b44d
SHA1

e2c1af1fe77022350f40e289da12c432a9c539b3
SHA256

f527c0f6f450394b45e18c44c107fe325cadf6317cf1e826f0a3141981cca031
SHA512

22409e1b91fc7218d8e1be524708e860a5895302f40600426b9af3cef7bab6e7d495c19e0f1e1c77e5f347993dacb92f383fe0fcc3a231f8dc2347156356e807
SSDEEP

384:d3Mg/bqo2jVBgFSpSOjuwzUnJyr91CnttgpZem:nqo2puFSp/jKJyr94gHem

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/1724-1-0x0000000000C80000-0x0000000000C8C000-memory.dmp	family_chaos
behavioral1/memory/1016-7-0x0000000001260000-0x000000000126C000-memory.dmp	family_chaos
behavioral1/files/0x00090000000120f8-6.dat	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
3056	bcdedit.exe
396	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
1060	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
1016	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\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\Start Menu\Programs\Accessories\Accessibility\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\Windows\Start Menu\Programs\Accessories\System Tools\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\Maintenance\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Videos\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\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Pictures\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\Recent\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Music\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\Contacts\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\Internet Explorer\Quick Launch\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\Admin\Music\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\Start Menu\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\Sample Music\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Documents\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\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Documents\desktop.ini	svchost.exe
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\SendTo\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
2956	vssadmin.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
1956	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1016	svchost.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
1724	2024-07-23_7464d5fe58d9a1423dc89d2e14a0b44d_destroyer_wannacry.exe
1724	2024-07-23_7464d5fe58d9a1423dc89d2e14a0b44d_destroyer_wannacry.exe
1724	2024-07-23_7464d5fe58d9a1423dc89d2e14a0b44d_destroyer_wannacry.exe
1016	svchost.exe
1016	svchost.exe
1016	svchost.exe
1016	svchost.exe
1016	svchost.exe
1016	svchost.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeDebugPrivilege	1724	2024-07-23_7464d5fe58d9a1423dc89d2e14a0b44d_destroyer_wannacry.exe
Token: SeDebugPrivilege	1016	svchost.exe
Token: SeBackupPrivilege	1760	vssvc.exe
Token: SeRestorePrivilege	1760	vssvc.exe
Token: SeAuditPrivilege	1760	vssvc.exe
Token: SeIncreaseQuotaPrivilege	1824	WMIC.exe
Token: SeSecurityPrivilege	1824	WMIC.exe
Token: SeTakeOwnershipPrivilege	1824	WMIC.exe
Token: SeLoadDriverPrivilege	1824	WMIC.exe
Token: SeSystemProfilePrivilege	1824	WMIC.exe
Token: SeSystemtimePrivilege	1824	WMIC.exe
Token: SeProfSingleProcessPrivilege	1824	WMIC.exe
Token: SeIncBasePriorityPrivilege	1824	WMIC.exe
Token: SeCreatePagefilePrivilege	1824	WMIC.exe
Token: SeBackupPrivilege	1824	WMIC.exe
Token: SeRestorePrivilege	1824	WMIC.exe
Token: SeShutdownPrivilege	1824	WMIC.exe
Token: SeDebugPrivilege	1824	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1824	WMIC.exe
Token: SeRemoteShutdownPrivilege	1824	WMIC.exe
Token: SeUndockPrivilege	1824	WMIC.exe
Token: SeManageVolumePrivilege	1824	WMIC.exe
Token: 33	1824	WMIC.exe
Token: 34	1824	WMIC.exe
Token: 35	1824	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1824	WMIC.exe
Token: SeSecurityPrivilege	1824	WMIC.exe
Token: SeTakeOwnershipPrivilege	1824	WMIC.exe
Token: SeLoadDriverPrivilege	1824	WMIC.exe
Token: SeSystemProfilePrivilege	1824	WMIC.exe
Token: SeSystemtimePrivilege	1824	WMIC.exe
Token: SeProfSingleProcessPrivilege	1824	WMIC.exe
Token: SeIncBasePriorityPrivilege	1824	WMIC.exe
Token: SeCreatePagefilePrivilege	1824	WMIC.exe
Token: SeBackupPrivilege	1824	WMIC.exe
Token: SeRestorePrivilege	1824	WMIC.exe
Token: SeShutdownPrivilege	1824	WMIC.exe
Token: SeDebugPrivilege	1824	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1824	WMIC.exe
Token: SeRemoteShutdownPrivilege	1824	WMIC.exe
Token: SeUndockPrivilege	1824	WMIC.exe
Token: SeManageVolumePrivilege	1824	WMIC.exe
Token: 33	1824	WMIC.exe
Token: 34	1824	WMIC.exe
Token: 35	1824	WMIC.exe
Token: SeBackupPrivilege	1392	wbengine.exe
Token: SeRestorePrivilege	1392	wbengine.exe
Token: SeSecurityPrivilege	1392	wbengine.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1724 wrote to memory of 1016	1724	2024-07-23_7464d5fe58d9a1423dc89d2e14a0b44d_destroyer_wannacry.exe	30
PID 1724 wrote to memory of 1016	1724	2024-07-23_7464d5fe58d9a1423dc89d2e14a0b44d_destroyer_wannacry.exe	30
PID 1724 wrote to memory of 1016	1724	2024-07-23_7464d5fe58d9a1423dc89d2e14a0b44d_destroyer_wannacry.exe	30
PID 1016 wrote to memory of 2848	1016	svchost.exe	32
PID 1016 wrote to memory of 2848	1016	svchost.exe	32
PID 1016 wrote to memory of 2848	1016	svchost.exe	32
PID 2848 wrote to memory of 2956	2848	cmd.exe	34
PID 2848 wrote to memory of 2956	2848	cmd.exe	34
PID 2848 wrote to memory of 2956	2848	cmd.exe	34
PID 2848 wrote to memory of 1824	2848	cmd.exe	37
PID 2848 wrote to memory of 1824	2848	cmd.exe	37
PID 2848 wrote to memory of 1824	2848	cmd.exe	37
PID 1016 wrote to memory of 1184	1016	svchost.exe	39
PID 1016 wrote to memory of 1184	1016	svchost.exe	39
PID 1016 wrote to memory of 1184	1016	svchost.exe	39
PID 1184 wrote to memory of 3056	1184	cmd.exe	41
PID 1184 wrote to memory of 3056	1184	cmd.exe	41
PID 1184 wrote to memory of 3056	1184	cmd.exe	41
PID 1184 wrote to memory of 396	1184	cmd.exe	42
PID 1184 wrote to memory of 396	1184	cmd.exe	42
PID 1184 wrote to memory of 396	1184	cmd.exe	42
PID 1016 wrote to memory of 1816	1016	svchost.exe	43
PID 1016 wrote to memory of 1816	1016	svchost.exe	43
PID 1016 wrote to memory of 1816	1016	svchost.exe	43
PID 1816 wrote to memory of 1060	1816	cmd.exe	45
PID 1816 wrote to memory of 1060	1816	cmd.exe	45
PID 1816 wrote to memory of 1060	1816	cmd.exe	45
PID 1016 wrote to memory of 1956	1016	svchost.exe	49
PID 1016 wrote to memory of 1956	1016	svchost.exe	49
PID 1016 wrote to memory of 1956	1016	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\2024-07-23_7464d5fe58d9a1423dc89d2e14a0b44d_destroyer_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-23_7464d5fe58d9a1423dc89d2e14a0b44d_destroyer_wannacry.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1724
- 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:1016
- - 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:2848
  - - C:\Windows\system32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:2956
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:1824
- - 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:1184
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:3056
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled no
      4⤵
      Modifies boot configuration data using bcdedit
      PID:396
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1816
  - - C:\Windows\system32\wbadmin.exe
      wbadmin delete catalog -quiet
      4⤵
      Deletes backup catalog
      PID:1060
- - 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:1956

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1760

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1392

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:1240

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:1800

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
21KB

MD5
7464d5fe58d9a1423dc89d2e14a0b44d

SHA1
e2c1af1fe77022350f40e289da12c432a9c539b3

SHA256
f527c0f6f450394b45e18c44c107fe325cadf6317cf1e826f0a3141981cca031

SHA512
22409e1b91fc7218d8e1be524708e860a5895302f40600426b9af3cef7bab6e7d495c19e0f1e1c77e5f347993dacb92f383fe0fcc3a231f8dc2347156356e807

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

Filesize
14B

MD5
a3d28c7fe8028d134ccc45cc349ba5fb

SHA1
f94f4ef8929553bd85ca4c76d7960f383880bcbb

SHA256
98307474cacdf3133fcc994c93b2b838cdfe9125ab87eee80c9cd1eec3c6c728

SHA512
e30c771cc6696149eb161fef90a73e72bb3e5057204c6f40f9ca1bd692279c090bd882edd76791e3228e44035f32b7b790baf3c516e6548bdbc51d7a298e27c3

Download Submit
memory/1016-7-0x0000000001260000-0x000000000126C000-memory.dmp

Filesize
48KB

Download
memory/1016-9-0x000007FEF62D0000-0x000007FEF6CBC000-memory.dmp

Filesize
9.9MB

Download
memory/1016-20-0x000007FEF62D0000-0x000007FEF6CBC000-memory.dmp

Filesize
9.9MB

Download
memory/1016-474-0x000007FEF62D0000-0x000007FEF6CBC000-memory.dmp

Filesize
9.9MB

Download
memory/1724-0-0x000007FEF62D3000-0x000007FEF62D4000-memory.dmp

Filesize
4KB

Download
memory/1724-1-0x0000000000C80000-0x0000000000C8C000-memory.dmp

Filesize
48KB

Download