chaos | 33cbda8c783370956e24485cc4917da0b133715992828cdef6ad67769b46b44a

Analysis

max time kernel
29s
max time network
31s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
17/05/2023, 02:45

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General

Target

2023-05-16_7065e2c6f1009253d3935003d5c6e943_destroyer_wannacry.exe
Size

23KB
MD5

7065e2c6f1009253d3935003d5c6e943
SHA1

82a26a541bf36d36c102b7a15a07af244c922fab
SHA256

33cbda8c783370956e24485cc4917da0b133715992828cdef6ad67769b46b44a
SHA512

eaf547a15e5f9e706f8c2b0535b6af661d35cd7a5f4d52bf4a2780e8017f6ca01ef25bc4f164212d303b1c74f870286d9e0ae0b5791fde110029b8b2638336a9
SSDEEP

384:A3Mg/bqo2xQDcqhmQpadVxcJsr91C+JNbgQeUl:+qo292pgx0sr97JNbZeUl

Score

10^/10

chaos evasion ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\Downloads\read_it.txt

Ransom Note

OH NOOOOO! The voices in your head are talking to you! All of your files have been encrypted Your computer was infected with a ransomware virus. Your files have been encrypted and you won't be able to decrypt them without our help.What can I do to get my files back? You can buy our special decryption software, this software will allow you to recover all of your data and remove the ransomware from your computer.The price for the software is $1,500. Payment can be made in Bitcoin only. How do I pay, where do I get Bitcoin? Purchasing Bitcoin varies from country to country, you are best advised to do a quick google search yourself to find out how to buy Bitcoin. Many of our customers have reported these sites to be fast and reliable: Coinmama - hxxps://www.coinmama.com Bitpanda - hxxps://www.bitpanda.com Payment informationAmount: 0.1473766 BTC Bitcoin Address: bc1qgqm4r2zlracfvtwdcy7d73e6m6r9rllpc6s67h

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 5 IoCs

resource	yara_rule
behavioral1/memory/2040-54-0x0000000000B10000-0x0000000000B1C000-memory.dmp	family_chaos
behavioral1/files/0x000b0000000122f8-58.dat	family_chaos
behavioral1/files/0x000b0000000122f8-59.dat	family_chaos
behavioral1/memory/2008-60-0x0000000001020000-0x000000000102C000-memory.dmp	family_chaos
behavioral1/memory/2008-62-0x000000001AE60000-0x000000001AEE0000-memory.dmp	family_chaos

Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs

ransomware evasion

Inhibit System Recovery

T1490

pid	Process
1764	bcdedit.exe
1660	bcdedit.exe

Deletes backup catalog 3 TTPs 1 IoCs

Uses wbadmin.exe to inhibit system recovery.

ransomware

Command-Line Interface

T1059

File Deletion

T1107

Inhibit System Recovery

T1490

pid	Process
1052	wbadmin.exe

Modifies extensions of user files 3 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File renamed	C:\Users\Admin\Pictures\DenyJoin.png => C:\Users\Admin\Pictures\DenyJoin.png.jwxv	svchost.exe
File renamed	C:\Users\Admin\Pictures\SyncMount.tif => C:\Users\Admin\Pictures\SyncMount.tif.od67	svchost.exe
File renamed	C:\Users\Admin\Pictures\CompareUse.png => C:\Users\Admin\Pictures\CompareUse.png.nzi5	svchost.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
2008	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
T1081

Drops desktop.ini file(s) 33 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\Links\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\Saved Games\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\Documents\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Music\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Favorites\Links\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Searches\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\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\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\Contacts\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\Admin\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Desktop\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\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\Public\Pictures\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\Desktop\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Documents\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\Windows\Start Menu\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Videos\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

T1107

Inhibit System Recovery

T1490

pid	Process
2004	vssadmin.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
236	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2008	svchost.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2040	2023-05-16_7065e2c6f1009253d3935003d5c6e943_destroyer_wannacry.exe
2008	svchost.exe
2008	svchost.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeDebugPrivilege	2040	2023-05-16_7065e2c6f1009253d3935003d5c6e943_destroyer_wannacry.exe
Token: SeDebugPrivilege	2008	svchost.exe
Token: SeBackupPrivilege	1360	vssvc.exe
Token: SeRestorePrivilege	1360	vssvc.exe
Token: SeAuditPrivilege	1360	vssvc.exe
Token: SeIncreaseQuotaPrivilege	1844	WMIC.exe
Token: SeSecurityPrivilege	1844	WMIC.exe
Token: SeTakeOwnershipPrivilege	1844	WMIC.exe
Token: SeLoadDriverPrivilege	1844	WMIC.exe
Token: SeSystemProfilePrivilege	1844	WMIC.exe
Token: SeSystemtimePrivilege	1844	WMIC.exe
Token: SeProfSingleProcessPrivilege	1844	WMIC.exe
Token: SeIncBasePriorityPrivilege	1844	WMIC.exe
Token: SeCreatePagefilePrivilege	1844	WMIC.exe
Token: SeBackupPrivilege	1844	WMIC.exe
Token: SeRestorePrivilege	1844	WMIC.exe
Token: SeShutdownPrivilege	1844	WMIC.exe
Token: SeDebugPrivilege	1844	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1844	WMIC.exe
Token: SeRemoteShutdownPrivilege	1844	WMIC.exe
Token: SeUndockPrivilege	1844	WMIC.exe
Token: SeManageVolumePrivilege	1844	WMIC.exe
Token: 33	1844	WMIC.exe
Token: 34	1844	WMIC.exe
Token: 35	1844	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1844	WMIC.exe
Token: SeSecurityPrivilege	1844	WMIC.exe
Token: SeTakeOwnershipPrivilege	1844	WMIC.exe
Token: SeLoadDriverPrivilege	1844	WMIC.exe
Token: SeSystemProfilePrivilege	1844	WMIC.exe
Token: SeSystemtimePrivilege	1844	WMIC.exe
Token: SeProfSingleProcessPrivilege	1844	WMIC.exe
Token: SeIncBasePriorityPrivilege	1844	WMIC.exe
Token: SeCreatePagefilePrivilege	1844	WMIC.exe
Token: SeBackupPrivilege	1844	WMIC.exe
Token: SeRestorePrivilege	1844	WMIC.exe
Token: SeShutdownPrivilege	1844	WMIC.exe
Token: SeDebugPrivilege	1844	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1844	WMIC.exe
Token: SeRemoteShutdownPrivilege	1844	WMIC.exe
Token: SeUndockPrivilege	1844	WMIC.exe
Token: SeManageVolumePrivilege	1844	WMIC.exe
Token: 33	1844	WMIC.exe
Token: 34	1844	WMIC.exe
Token: 35	1844	WMIC.exe
Token: SeBackupPrivilege	1628	wbengine.exe
Token: SeRestorePrivilege	1628	wbengine.exe
Token: SeSecurityPrivilege	1628	wbengine.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2040 wrote to memory of 2008	2040	2023-05-16_7065e2c6f1009253d3935003d5c6e943_destroyer_wannacry.exe	28
PID 2040 wrote to memory of 2008	2040	2023-05-16_7065e2c6f1009253d3935003d5c6e943_destroyer_wannacry.exe	28
PID 2040 wrote to memory of 2008	2040	2023-05-16_7065e2c6f1009253d3935003d5c6e943_destroyer_wannacry.exe	28
PID 2008 wrote to memory of 2036	2008	svchost.exe	30
PID 2008 wrote to memory of 2036	2008	svchost.exe	30
PID 2008 wrote to memory of 2036	2008	svchost.exe	30
PID 2036 wrote to memory of 2004	2036	cmd.exe	32
PID 2036 wrote to memory of 2004	2036	cmd.exe	32
PID 2036 wrote to memory of 2004	2036	cmd.exe	32
PID 2036 wrote to memory of 1844	2036	cmd.exe	36
PID 2036 wrote to memory of 1844	2036	cmd.exe	36
PID 2036 wrote to memory of 1844	2036	cmd.exe	36
PID 2008 wrote to memory of 1772	2008	svchost.exe	38
PID 2008 wrote to memory of 1772	2008	svchost.exe	38
PID 2008 wrote to memory of 1772	2008	svchost.exe	38
PID 1772 wrote to memory of 1764	1772	cmd.exe	40
PID 1772 wrote to memory of 1764	1772	cmd.exe	40
PID 1772 wrote to memory of 1764	1772	cmd.exe	40
PID 1772 wrote to memory of 1660	1772	cmd.exe	41
PID 1772 wrote to memory of 1660	1772	cmd.exe	41
PID 1772 wrote to memory of 1660	1772	cmd.exe	41
PID 2008 wrote to memory of 1768	2008	svchost.exe	42
PID 2008 wrote to memory of 1768	2008	svchost.exe	42
PID 2008 wrote to memory of 1768	2008	svchost.exe	42
PID 1768 wrote to memory of 1052	1768	cmd.exe	44
PID 1768 wrote to memory of 1052	1768	cmd.exe	44
PID 1768 wrote to memory of 1052	1768	cmd.exe	44
PID 2008 wrote to memory of 236	2008	svchost.exe	48
PID 2008 wrote to memory of 236	2008	svchost.exe	48
PID 2008 wrote to memory of 236	2008	svchost.exe	48

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\2023-05-16_7065e2c6f1009253d3935003d5c6e943_destroyer_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2023-05-16_7065e2c6f1009253d3935003d5c6e943_destroyer_wannacry.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2040
- C:\Users\Admin\AppData\Roaming\svchost.exe
  "C:\Users\Admin\AppData\Roaming\svchost.exe"
  2⤵
  - Modifies extensions of user files
  - 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:2008
- - 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:2036
  - - C:\Windows\system32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:2004
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:1844
- - 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:1772
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:1764
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled no
      4⤵
      Modifies boot configuration data using bcdedit
      PID:1660
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1768
  - - C:\Windows\system32\wbadmin.exe
      wbadmin delete catalog -quiet
      4⤵
      Deletes backup catalog
      PID:1052
- - 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:236

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1360

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1628

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:1952

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:1096

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Command-Line Interface

T1059

Persistence

Privilege Escalation

Defense Evasion

File Deletion

T1107

Credential Access

Credentials in Files

T1081

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\read_it.txt

Filesize
942B

MD5
f74c4a12c31252dc531b45c846200d0f

SHA1
41ac22a2454febcb35f1aa0055d893c9018e0fd7

SHA256
da80f58e7c45ed63fbf10f930351776098cd40f08f077a81bb27ffaf64ad4d0f

SHA512
d1a3573f3755646eaad36e3c64f4dda6426db770991de12a1261e444fe732fcf33a2b5404844e9c9b89bd7f45e6e21855c1852a4807491a897bcddfd1e830736

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

Filesize
23KB

MD5
7065e2c6f1009253d3935003d5c6e943

SHA1
82a26a541bf36d36c102b7a15a07af244c922fab

SHA256
33cbda8c783370956e24485cc4917da0b133715992828cdef6ad67769b46b44a

SHA512
eaf547a15e5f9e706f8c2b0535b6af661d35cd7a5f4d52bf4a2780e8017f6ca01ef25bc4f164212d303b1c74f870286d9e0ae0b5791fde110029b8b2638336a9

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

Filesize
23KB

MD5
7065e2c6f1009253d3935003d5c6e943

SHA1
82a26a541bf36d36c102b7a15a07af244c922fab

SHA256
33cbda8c783370956e24485cc4917da0b133715992828cdef6ad67769b46b44a

SHA512
eaf547a15e5f9e706f8c2b0535b6af661d35cd7a5f4d52bf4a2780e8017f6ca01ef25bc4f164212d303b1c74f870286d9e0ae0b5791fde110029b8b2638336a9

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

Filesize
942B

MD5
f74c4a12c31252dc531b45c846200d0f

SHA1
41ac22a2454febcb35f1aa0055d893c9018e0fd7

SHA256
da80f58e7c45ed63fbf10f930351776098cd40f08f077a81bb27ffaf64ad4d0f

SHA512
d1a3573f3755646eaad36e3c64f4dda6426db770991de12a1261e444fe732fcf33a2b5404844e9c9b89bd7f45e6e21855c1852a4807491a897bcddfd1e830736

Download Submit
memory/2008-60-0x0000000001020000-0x000000000102C000-memory.dmp

Filesize
48KB

Download
memory/2008-62-0x000000001AE60000-0x000000001AEE0000-memory.dmp

Filesize
512KB

Download
memory/2008-499-0x000000001AE60000-0x000000001AEE0000-memory.dmp

Filesize
512KB

Download
memory/2040-54-0x0000000000B10000-0x0000000000B1C000-memory.dmp

Filesize
48KB

Download