chaos | abe16256e4e4afc5c0d5db562db9e5a3727deb499e416f42c981d2392a3a5e27

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
11-10-2024 00:13

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General

Target

2024-10-10_cd975130b8fed5c8ebadc0257e2548b6_destroyer_wannacry.exe
Size

22KB
MD5

cd975130b8fed5c8ebadc0257e2548b6
SHA1

63237a38eb3fa9745e2c8a5095c3144f8707b1ae
SHA256

abe16256e4e4afc5c0d5db562db9e5a3727deb499e416f42c981d2392a3a5e27
SHA512

2a1031f00d022a2efb578d39de305b2679750f32f3cea72e9b60714937681f7597f66ca0f8fc434e35c1a439c0b4716846c064d73757b93142f572ae43b7cc52
SSDEEP

384:K3Mg/bqo21iP3pZkm81mUJRr91CB76Le1P:wqo2ypZkm81m8Rr9yqex

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/2432-1-0x0000000000E20000-0x0000000000E2C000-memory.dmp	family_chaos
behavioral1/files/0x000b0000000120dc-6.dat	family_chaos
behavioral1/memory/2692-8-0x00000000000B0000-0x00000000000BC000-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
2180	bcdedit.exe
2168	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
1812	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
2692	svchost.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

Drops desktop.ini file(s) 34 IoCs

description	ioc	Process
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-3551809350-4263495960-1443967649-1000\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\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\Searches\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\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\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Videos\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Documents\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\Internet Explorer\Quick Launch\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Downloads\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\Libraries\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Links\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\Maintenance\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\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\Saved Games\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\Favorites\Links for United States\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\Videos\Sample Videos\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Desktop\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
1212	vssadmin.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
1380	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2692	svchost.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2432	2024-10-10_cd975130b8fed5c8ebadc0257e2548b6_destroyer_wannacry.exe
2432	2024-10-10_cd975130b8fed5c8ebadc0257e2548b6_destroyer_wannacry.exe
2432	2024-10-10_cd975130b8fed5c8ebadc0257e2548b6_destroyer_wannacry.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe
2692	svchost.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeDebugPrivilege	2432	2024-10-10_cd975130b8fed5c8ebadc0257e2548b6_destroyer_wannacry.exe
Token: SeDebugPrivilege	2692	svchost.exe
Token: SeBackupPrivilege	2032	vssvc.exe
Token: SeRestorePrivilege	2032	vssvc.exe
Token: SeAuditPrivilege	2032	vssvc.exe
Token: SeIncreaseQuotaPrivilege	2932	WMIC.exe
Token: SeSecurityPrivilege	2932	WMIC.exe
Token: SeTakeOwnershipPrivilege	2932	WMIC.exe
Token: SeLoadDriverPrivilege	2932	WMIC.exe
Token: SeSystemProfilePrivilege	2932	WMIC.exe
Token: SeSystemtimePrivilege	2932	WMIC.exe
Token: SeProfSingleProcessPrivilege	2932	WMIC.exe
Token: SeIncBasePriorityPrivilege	2932	WMIC.exe
Token: SeCreatePagefilePrivilege	2932	WMIC.exe
Token: SeBackupPrivilege	2932	WMIC.exe
Token: SeRestorePrivilege	2932	WMIC.exe
Token: SeShutdownPrivilege	2932	WMIC.exe
Token: SeDebugPrivilege	2932	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2932	WMIC.exe
Token: SeRemoteShutdownPrivilege	2932	WMIC.exe
Token: SeUndockPrivilege	2932	WMIC.exe
Token: SeManageVolumePrivilege	2932	WMIC.exe
Token: 33	2932	WMIC.exe
Token: 34	2932	WMIC.exe
Token: 35	2932	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2932	WMIC.exe
Token: SeSecurityPrivilege	2932	WMIC.exe
Token: SeTakeOwnershipPrivilege	2932	WMIC.exe
Token: SeLoadDriverPrivilege	2932	WMIC.exe
Token: SeSystemProfilePrivilege	2932	WMIC.exe
Token: SeSystemtimePrivilege	2932	WMIC.exe
Token: SeProfSingleProcessPrivilege	2932	WMIC.exe
Token: SeIncBasePriorityPrivilege	2932	WMIC.exe
Token: SeCreatePagefilePrivilege	2932	WMIC.exe
Token: SeBackupPrivilege	2932	WMIC.exe
Token: SeRestorePrivilege	2932	WMIC.exe
Token: SeShutdownPrivilege	2932	WMIC.exe
Token: SeDebugPrivilege	2932	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2932	WMIC.exe
Token: SeRemoteShutdownPrivilege	2932	WMIC.exe
Token: SeUndockPrivilege	2932	WMIC.exe
Token: SeManageVolumePrivilege	2932	WMIC.exe
Token: 33	2932	WMIC.exe
Token: 34	2932	WMIC.exe
Token: 35	2932	WMIC.exe
Token: SeBackupPrivilege	2928	wbengine.exe
Token: SeRestorePrivilege	2928	wbengine.exe
Token: SeSecurityPrivilege	2928	wbengine.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2432 wrote to memory of 2692	2432	2024-10-10_cd975130b8fed5c8ebadc0257e2548b6_destroyer_wannacry.exe	30
PID 2432 wrote to memory of 2692	2432	2024-10-10_cd975130b8fed5c8ebadc0257e2548b6_destroyer_wannacry.exe	30
PID 2432 wrote to memory of 2692	2432	2024-10-10_cd975130b8fed5c8ebadc0257e2548b6_destroyer_wannacry.exe	30
PID 2692 wrote to memory of 1948	2692	svchost.exe	32
PID 2692 wrote to memory of 1948	2692	svchost.exe	32
PID 2692 wrote to memory of 1948	2692	svchost.exe	32
PID 1948 wrote to memory of 1212	1948	cmd.exe	34
PID 1948 wrote to memory of 1212	1948	cmd.exe	34
PID 1948 wrote to memory of 1212	1948	cmd.exe	34
PID 1948 wrote to memory of 2932	1948	cmd.exe	37
PID 1948 wrote to memory of 2932	1948	cmd.exe	37
PID 1948 wrote to memory of 2932	1948	cmd.exe	37
PID 2692 wrote to memory of 2132	2692	svchost.exe	39
PID 2692 wrote to memory of 2132	2692	svchost.exe	39
PID 2692 wrote to memory of 2132	2692	svchost.exe	39
PID 2132 wrote to memory of 2180	2132	cmd.exe	41
PID 2132 wrote to memory of 2180	2132	cmd.exe	41
PID 2132 wrote to memory of 2180	2132	cmd.exe	41
PID 2132 wrote to memory of 2168	2132	cmd.exe	42
PID 2132 wrote to memory of 2168	2132	cmd.exe	42
PID 2132 wrote to memory of 2168	2132	cmd.exe	42
PID 2692 wrote to memory of 2236	2692	svchost.exe	43
PID 2692 wrote to memory of 2236	2692	svchost.exe	43
PID 2692 wrote to memory of 2236	2692	svchost.exe	43
PID 2236 wrote to memory of 1812	2236	cmd.exe	45
PID 2236 wrote to memory of 1812	2236	cmd.exe	45
PID 2236 wrote to memory of 1812	2236	cmd.exe	45
PID 2692 wrote to memory of 1380	2692	svchost.exe	49
PID 2692 wrote to memory of 1380	2692	svchost.exe	49
PID 2692 wrote to memory of 1380	2692	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\2024-10-10_cd975130b8fed5c8ebadc0257e2548b6_destroyer_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-10_cd975130b8fed5c8ebadc0257e2548b6_destroyer_wannacry.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2432
- 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:2692
- - 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:1212
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:2932
- - 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:2132
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:2180
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled no
      4⤵
      Modifies boot configuration data using bcdedit
      PID:2168
- - 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:1812
- - 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:1380

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2032

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

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:1548

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:2964

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

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

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
22KB

MD5
cd975130b8fed5c8ebadc0257e2548b6

SHA1
63237a38eb3fa9745e2c8a5095c3144f8707b1ae

SHA256
abe16256e4e4afc5c0d5db562db9e5a3727deb499e416f42c981d2392a3a5e27

SHA512
2a1031f00d022a2efb578d39de305b2679750f32f3cea72e9b60714937681f7597f66ca0f8fc434e35c1a439c0b4716846c064d73757b93142f572ae43b7cc52

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

Filesize
372B

MD5
68dbd4c049d0b443c7dfadfb83f21593

SHA1
cf9c16d96484c70695c08820b64b4f0ca25d510a

SHA256
4b9c2f074ef7238e2b9b69dfd33e3210698e386ba7f5d357050d3198d6e2a265

SHA512
ea478277d45f83e9788cb73f697dbc30cd893d1ac54ef84566f2dbbde9b3a349481d724fe9032debd9e86dc736c3394871876388898d8277a1a27043195589ce

Download Submit
memory/2432-0-0x000007FEF5353000-0x000007FEF5354000-memory.dmp

Filesize
4KB

Download
memory/2432-1-0x0000000000E20000-0x0000000000E2C000-memory.dmp

Filesize
48KB

Download
memory/2432-2-0x000007FEF5353000-0x000007FEF5354000-memory.dmp

Filesize
4KB

Download
memory/2692-8-0x00000000000B0000-0x00000000000BC000-memory.dmp

Filesize
48KB

Download
memory/2692-10-0x000007FEF5350000-0x000007FEF5D3C000-memory.dmp

Filesize
9.9MB

Download
memory/2692-21-0x000007FEF5350000-0x000007FEF5D3C000-memory.dmp

Filesize
9.9MB

Download
memory/2692-461-0x000007FEF5350000-0x000007FEF5D3C000-memory.dmp

Filesize
9.9MB

Download