chaos | acb1b649b8fa101f04674189de1064add8c929b7e51de01c1a667b41d2333604

Analysis

max time kernel
24s
max time network
18s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
28-07-2024 19:21

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General

Target

2024-07-28_2310f84927d030fad49735e109c864f3_wannacry.exe
Size

142KB
MD5

2310f84927d030fad49735e109c864f3
SHA1

ea64caf28773a541b0a32f6dc4a35acb0d7d15c8
SHA256

acb1b649b8fa101f04674189de1064add8c929b7e51de01c1a667b41d2333604
SHA512

b29a61082d99f5b53501ddd2bc5437c44f3ab73235ef152cbffe2b318578d3a7e29106412f5c5943960a891fc7e5707921aa4e00901357d53b973357574f977e
SSDEEP

3072:fogMdUr9fsAdLIxkvIDY1779BORVTq/+lS8SMlVBbng:Dpr9fshkloDbfV9n

Score

10^/10

chaos defense_evasion evasion execution impact ransomware spyware stealer

Malware Config

Extracted

Path

C:\Users\Admin\Documents\Read_me.txt

Ransom Note

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 $5,000. 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 !!!In case you feel like not paying, it's important that you know we will not hesitate to sell your data on the darknet!!! Bitcoin Address: 32pTE6MyVVfBNSsbCdffuEsKwE51JTT4Uj <----- Send all bitcoins to this address

Wallets

32pTE6MyVVfBNSsbCdffuEsKwE51JTT4Uj

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 3 IoCs

resource	yara_rule
behavioral1/memory/2380-1-0x00000000013B0000-0x00000000013DA000-memory.dmp	family_chaos
behavioral1/files/0x0009000000012118-5.dat	family_chaos
behavioral1/memory/2328-8-0x0000000001270000-0x000000000129A000-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
980	bcdedit.exe
992	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
1772	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_me.txt	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2328	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\Documents\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\Internet Explorer\Quick Launch\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\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\Searches\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\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Videos\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
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-1506706701-1246725540-2219210854-1000\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\Recent\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\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\Public\Pictures\Sample Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Videos\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Pictures\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\Start Menu\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\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\Favorites\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\Start Menu\Programs\Maintenance\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Documents\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Favorites\desktop.ini	svchost.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1506706701-1246725540-2219210854-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\0so5k94kl.jpg"	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
592	vssadmin.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
1328	NOTEPAD.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2328	svchost.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2380	2024-07-28_2310f84927d030fad49735e109c864f3_wannacry.exe
2380	2024-07-28_2310f84927d030fad49735e109c864f3_wannacry.exe
2380	2024-07-28_2310f84927d030fad49735e109c864f3_wannacry.exe
2328	svchost.exe
2328	svchost.exe
2328	svchost.exe
2328	svchost.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeDebugPrivilege	2380	2024-07-28_2310f84927d030fad49735e109c864f3_wannacry.exe
Token: SeDebugPrivilege	2328	svchost.exe
Token: SeBackupPrivilege	2936	vssvc.exe
Token: SeRestorePrivilege	2936	vssvc.exe
Token: SeAuditPrivilege	2936	vssvc.exe
Token: SeIncreaseQuotaPrivilege	408	WMIC.exe
Token: SeSecurityPrivilege	408	WMIC.exe
Token: SeTakeOwnershipPrivilege	408	WMIC.exe
Token: SeLoadDriverPrivilege	408	WMIC.exe
Token: SeSystemProfilePrivilege	408	WMIC.exe
Token: SeSystemtimePrivilege	408	WMIC.exe
Token: SeProfSingleProcessPrivilege	408	WMIC.exe
Token: SeIncBasePriorityPrivilege	408	WMIC.exe
Token: SeCreatePagefilePrivilege	408	WMIC.exe
Token: SeBackupPrivilege	408	WMIC.exe
Token: SeRestorePrivilege	408	WMIC.exe
Token: SeShutdownPrivilege	408	WMIC.exe
Token: SeDebugPrivilege	408	WMIC.exe
Token: SeSystemEnvironmentPrivilege	408	WMIC.exe
Token: SeRemoteShutdownPrivilege	408	WMIC.exe
Token: SeUndockPrivilege	408	WMIC.exe
Token: SeManageVolumePrivilege	408	WMIC.exe
Token: 33	408	WMIC.exe
Token: 34	408	WMIC.exe
Token: 35	408	WMIC.exe
Token: SeIncreaseQuotaPrivilege	408	WMIC.exe
Token: SeSecurityPrivilege	408	WMIC.exe
Token: SeTakeOwnershipPrivilege	408	WMIC.exe
Token: SeLoadDriverPrivilege	408	WMIC.exe
Token: SeSystemProfilePrivilege	408	WMIC.exe
Token: SeSystemtimePrivilege	408	WMIC.exe
Token: SeProfSingleProcessPrivilege	408	WMIC.exe
Token: SeIncBasePriorityPrivilege	408	WMIC.exe
Token: SeCreatePagefilePrivilege	408	WMIC.exe
Token: SeBackupPrivilege	408	WMIC.exe
Token: SeRestorePrivilege	408	WMIC.exe
Token: SeShutdownPrivilege	408	WMIC.exe
Token: SeDebugPrivilege	408	WMIC.exe
Token: SeSystemEnvironmentPrivilege	408	WMIC.exe
Token: SeRemoteShutdownPrivilege	408	WMIC.exe
Token: SeUndockPrivilege	408	WMIC.exe
Token: SeManageVolumePrivilege	408	WMIC.exe
Token: 33	408	WMIC.exe
Token: 34	408	WMIC.exe
Token: 35	408	WMIC.exe
Token: SeBackupPrivilege	2644	wbengine.exe
Token: SeRestorePrivilege	2644	wbengine.exe
Token: SeSecurityPrivilege	2644	wbengine.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 2328	2380	2024-07-28_2310f84927d030fad49735e109c864f3_wannacry.exe	30
PID 2380 wrote to memory of 2328	2380	2024-07-28_2310f84927d030fad49735e109c864f3_wannacry.exe	30
PID 2380 wrote to memory of 2328	2380	2024-07-28_2310f84927d030fad49735e109c864f3_wannacry.exe	30
PID 2328 wrote to memory of 2696	2328	svchost.exe	32
PID 2328 wrote to memory of 2696	2328	svchost.exe	32
PID 2328 wrote to memory of 2696	2328	svchost.exe	32
PID 2696 wrote to memory of 592	2696	cmd.exe	34
PID 2696 wrote to memory of 592	2696	cmd.exe	34
PID 2696 wrote to memory of 592	2696	cmd.exe	34
PID 2696 wrote to memory of 408	2696	cmd.exe	37
PID 2696 wrote to memory of 408	2696	cmd.exe	37
PID 2696 wrote to memory of 408	2696	cmd.exe	37
PID 2328 wrote to memory of 2652	2328	svchost.exe	39
PID 2328 wrote to memory of 2652	2328	svchost.exe	39
PID 2328 wrote to memory of 2652	2328	svchost.exe	39
PID 2652 wrote to memory of 980	2652	cmd.exe	41
PID 2652 wrote to memory of 980	2652	cmd.exe	41
PID 2652 wrote to memory of 980	2652	cmd.exe	41
PID 2652 wrote to memory of 992	2652	cmd.exe	42
PID 2652 wrote to memory of 992	2652	cmd.exe	42
PID 2652 wrote to memory of 992	2652	cmd.exe	42
PID 2328 wrote to memory of 1548	2328	svchost.exe	43
PID 2328 wrote to memory of 1548	2328	svchost.exe	43
PID 2328 wrote to memory of 1548	2328	svchost.exe	43
PID 1548 wrote to memory of 1772	1548	cmd.exe	45
PID 1548 wrote to memory of 1772	1548	cmd.exe	45
PID 1548 wrote to memory of 1772	1548	cmd.exe	45
PID 2328 wrote to memory of 1328	2328	svchost.exe	49
PID 2328 wrote to memory of 1328	2328	svchost.exe	49
PID 2328 wrote to memory of 1328	2328	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\2024-07-28_2310f84927d030fad49735e109c864f3_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-28_2310f84927d030fad49735e109c864f3_wannacry.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2380
- 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)
  - Sets desktop wallpaper using registry
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2328
- - 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:2696
  - - C:\Windows\system32\vssadmin.exe
      vssadmin delete shadows /all /quiet
      4⤵
      Interacts with shadow copies
      PID:592
  - - C:\Windows\System32\Wbem\WMIC.exe
      wmic shadowcopy delete
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:408
- - 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:2652
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} bootstatuspolicy ignoreallfailures
      4⤵
      Modifies boot configuration data using bcdedit
      PID:980
  - - C:\Windows\system32\bcdedit.exe
      bcdedit /set {default} recoveryenabled no
      4⤵
      Modifies boot configuration data using bcdedit
      PID:992
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1548
  - - C:\Windows\system32\wbadmin.exe
      wbadmin delete catalog -quiet
      4⤵
      Deletes backup catalog
      PID:1772
- - C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\Read_me.txt
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:1328

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2936

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2644

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:1740

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:640

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

Modify Registry

T1112

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

Defacement

T1491

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

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

Filesize
142KB

MD5
2310f84927d030fad49735e109c864f3

SHA1
ea64caf28773a541b0a32f6dc4a35acb0d7d15c8

SHA256
acb1b649b8fa101f04674189de1064add8c929b7e51de01c1a667b41d2333604

SHA512
b29a61082d99f5b53501ddd2bc5437c44f3ab73235ef152cbffe2b318578d3a7e29106412f5c5943960a891fc7e5707921aa4e00901357d53b973357574f977e

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

Filesize
1008B

MD5
92e4efcfba31fbf8e7dc5e0073eb1170

SHA1
2380a731f0fdd226a28bbd7acc9a6ccfb550ac6c

SHA256
9785aee9c6f083ee8da868491f4649e8bfe179a24f99704cee68873f99bd40f9

SHA512
eb321db8ddc0d36d1fd4c2d631cc872a5c15ff341192b7b151dfd87ed744ef381cc14602abd43c5cc2ec48db24f66da009733e0a5c32ab31783358cd5e808cf6

Download Submit
memory/2328-7-0x000007FEF56E3000-0x000007FEF56E4000-memory.dmp

Filesize
4KB

Download
memory/2328-8-0x0000000001270000-0x000000000129A000-memory.dmp

Filesize
168KB

Download
memory/2328-28-0x000007FEF56E0000-0x000007FEF60CC000-memory.dmp

Filesize
9.9MB

Download
memory/2328-457-0x000007FEF56E3000-0x000007FEF56E4000-memory.dmp

Filesize
4KB

Download
memory/2328-458-0x000007FEF56E0000-0x000007FEF60CC000-memory.dmp

Filesize
9.9MB

Download
memory/2380-0-0x000007FEF60D3000-0x000007FEF60D4000-memory.dmp

Filesize
4KB

Download
memory/2380-1-0x00000000013B0000-0x00000000013DA000-memory.dmp

Filesize
168KB

Download