Malware Analysis Report

2024-08-06 16:17

Sample ID 240625-na98kawekf
Target c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.sample
SHA256 c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc
Tags
chaos defense_evasion evasion execution impact ransomware spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc

Threat Level: Known bad

The file c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.sample was found to be: Known bad.

Malicious Activity Summary

chaos defense_evasion evasion execution impact ransomware spyware stealer

Chaos

Chaos family

Chaos Ransomware

Modifies boot configuration data using bcdedit

Deletes shadow copies

Deletes backup catalog

Executes dropped EXE

Reads user/profile data of web browsers

Checks computer location settings

Drops startup file

Drops desktop.ini file(s)

Sets desktop wallpaper using registry

Unsigned PE

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Checks SCSI registry key(s)

Interacts with shadow copies

Uses Volume Shadow Copy service COM API

Uses Task Scheduler COM API

Suspicious behavior: AddClipboardFormatListener

Modifies registry class

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Windows Management Instrumentation
T1047
Command and Scripting Interpreter
T1059
Persistence
TA0003
Privilege Escalation
TA0004
Defense Evasion
TA0005
Indicator Removal
T1070
File Deletion
T1070.004
Modify Registry
T1112
Direct Volume Access
T1006
Credential Access
TA0006
Unsecured Credentials
T1552
Credentials In Files
T1552.001
Discovery
TA0007
System Information Discovery
T1082
Query Registry
T1012
Peripheral Device Discovery
T1120
Lateral Movement
TA0008
Collection
TA0009
Data from Local System
T1005
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Inhibit System Recovery
T1490
Defacement
T1491
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-06-25 11:12

Signatures

Chaos Ransomware

Description Indicator Process Target
N/A N/A N/A N/A

Chaos family

chaos

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-25 11:12

Reported

2024-06-25 11:15

Platform

win7-20240508-en

Max time kernel

117s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe"

Signatures

Chaos

ransomware chaos

Chaos Ransomware

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Deletes shadow copies

ransomware defense_evasion impact execution

Modifies boot configuration data using bcdedit

ransomware evasion
Description Indicator Process Target
N/A N/A C:\Windows\system32\bcdedit.exe N/A
N/A N/A C:\Windows\system32\bcdedit.exe N/A

Deletes backup catalog

ransomware
Description Indicator Process Target
N/A N/A C:\Windows\system32\wbadmin.exe N/A

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\MR99.url C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\說明it.txt C:\Users\Admin\AppData\Roaming\MR99.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\MR99.exe N/A

Reads user/profile data of web browsers

spyware stealer

Drops desktop.ini file(s)

Description Indicator Process Target
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Public\Pictures\Sample Pictures\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Public\Videos\Sample Videos\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3691908287-3775019229-3534252667-1000\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\Links\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\Favorites\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\Favorites\Links for United States\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Public\Desktop\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Public\Documents\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\Documents\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\Downloads\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Public\Videos\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\Pictures\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\Music\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\Searches\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Public\Music\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\Saved Games\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Public\Pictures\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Public\Music\Sample Music\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\Desktop\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\Videos\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\Contacts\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A

Sets desktop wallpaper using registry

ransomware
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\boe7ay46n.jpg" C:\Users\Admin\AppData\Roaming\MR99.exe N/A

Enumerates physical storage devices

Interacts with shadow copies

ransomware
Description Indicator Process Target
N/A N/A C:\Windows\system32\vssadmin.exe N/A

Suspicious behavior: AddClipboardFormatListener

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\MR99.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MR99.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MR99.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MR99.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\MR99.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeAuditPrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeIncreaseQuotaPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeSystemtimePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeUndockPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeManageVolumePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: 33 N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: 34 N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: 35 N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeIncreaseQuotaPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeSystemtimePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeUndockPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeManageVolumePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: 33 N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: 34 N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: 35 N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\system32\wbengine.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\system32\wbengine.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\system32\wbengine.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1716 wrote to memory of 3064 N/A C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe C:\Users\Admin\AppData\Roaming\MR99.exe
PID 1716 wrote to memory of 3064 N/A C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe C:\Users\Admin\AppData\Roaming\MR99.exe
PID 1716 wrote to memory of 3064 N/A C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe C:\Users\Admin\AppData\Roaming\MR99.exe
PID 3064 wrote to memory of 2836 N/A C:\Users\Admin\AppData\Roaming\MR99.exe C:\Windows\System32\cmd.exe
PID 3064 wrote to memory of 2836 N/A C:\Users\Admin\AppData\Roaming\MR99.exe C:\Windows\System32\cmd.exe
PID 3064 wrote to memory of 2836 N/A C:\Users\Admin\AppData\Roaming\MR99.exe C:\Windows\System32\cmd.exe
PID 2836 wrote to memory of 1552 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\vssadmin.exe
PID 2836 wrote to memory of 1552 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\vssadmin.exe
PID 2836 wrote to memory of 1552 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\vssadmin.exe
PID 2836 wrote to memory of 308 N/A C:\Windows\System32\cmd.exe C:\Windows\System32\Wbem\WMIC.exe
PID 2836 wrote to memory of 308 N/A C:\Windows\System32\cmd.exe C:\Windows\System32\Wbem\WMIC.exe
PID 2836 wrote to memory of 308 N/A C:\Windows\System32\cmd.exe C:\Windows\System32\Wbem\WMIC.exe
PID 3064 wrote to memory of 3012 N/A C:\Users\Admin\AppData\Roaming\MR99.exe C:\Windows\System32\cmd.exe
PID 3064 wrote to memory of 3012 N/A C:\Users\Admin\AppData\Roaming\MR99.exe C:\Windows\System32\cmd.exe
PID 3064 wrote to memory of 3012 N/A C:\Users\Admin\AppData\Roaming\MR99.exe C:\Windows\System32\cmd.exe
PID 3012 wrote to memory of 1108 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\bcdedit.exe
PID 3012 wrote to memory of 1108 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\bcdedit.exe
PID 3012 wrote to memory of 1108 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\bcdedit.exe
PID 3012 wrote to memory of 1456 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\bcdedit.exe
PID 3012 wrote to memory of 1456 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\bcdedit.exe
PID 3012 wrote to memory of 1456 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\bcdedit.exe
PID 3064 wrote to memory of 2932 N/A C:\Users\Admin\AppData\Roaming\MR99.exe C:\Windows\System32\cmd.exe
PID 3064 wrote to memory of 2932 N/A C:\Users\Admin\AppData\Roaming\MR99.exe C:\Windows\System32\cmd.exe
PID 3064 wrote to memory of 2932 N/A C:\Users\Admin\AppData\Roaming\MR99.exe C:\Windows\System32\cmd.exe
PID 2932 wrote to memory of 1624 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\wbadmin.exe
PID 2932 wrote to memory of 1624 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\wbadmin.exe
PID 2932 wrote to memory of 1624 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\wbadmin.exe
PID 3064 wrote to memory of 1752 N/A C:\Users\Admin\AppData\Roaming\MR99.exe C:\Windows\system32\NOTEPAD.EXE
PID 3064 wrote to memory of 1752 N/A C:\Users\Admin\AppData\Roaming\MR99.exe C:\Windows\system32\NOTEPAD.EXE
PID 3064 wrote to memory of 1752 N/A C:\Users\Admin\AppData\Roaming\MR99.exe C:\Windows\system32\NOTEPAD.EXE

Uses Task Scheduler COM API

persistence

Uses Volume Shadow Copy service COM API

ransomware

Processes

C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe

"C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe"

C:\Users\Admin\AppData\Roaming\MR99.exe

"C:\Users\Admin\AppData\Roaming\MR99.exe"

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete

C:\Windows\system32\vssadmin.exe

vssadmin delete shadows /all /quiet

C:\Windows\system32\vssvc.exe

C:\Windows\system32\vssvc.exe

C:\Windows\System32\Wbem\WMIC.exe

wmic shadowcopy delete

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no

C:\Windows\system32\bcdedit.exe

bcdedit /set {default} bootstatuspolicy ignoreallfailures

C:\Windows\system32\bcdedit.exe

bcdedit /set {default} recoveryenabled no

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet

C:\Windows\system32\wbadmin.exe

wbadmin delete catalog -quiet

C:\Windows\system32\wbengine.exe

"C:\Windows\system32\wbengine.exe"

C:\Windows\System32\vdsldr.exe

C:\Windows\System32\vdsldr.exe -Embedding

C:\Windows\System32\vds.exe

C:\Windows\System32\vds.exe

C:\Windows\system32\NOTEPAD.EXE

"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\說明it.txt

Network

N/A

Files

memory/1716-0-0x000007FEF5B73000-0x000007FEF5B74000-memory.dmp

memory/1716-1-0x00000000003F0000-0x000000000041C000-memory.dmp

C:\Users\Admin\AppData\Roaming\MR99.exe

MD5 b12ba245044aebefd213e83d96bbe30e
SHA1 13dd3338a25156109ba6957d05d5639d8e12d275
SHA256 c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc
SHA512 e7865415f12621d4a327ba2d7741a6f9354a758c2d7727d081e4b2787e9d01b971f8c4693dd7540f982a15de668f9596e25f13900d7d6fb5de04be199ec4d682

memory/3064-7-0x000007FEF5183000-0x000007FEF5184000-memory.dmp

memory/3064-8-0x00000000003E0000-0x000000000040C000-memory.dmp

memory/3064-22-0x000007FEF5180000-0x000007FEF5B6C000-memory.dmp

C:\Users\Admin\Documents\說明it.txt

MD5 49a1cf89d0ddde160c817935eae02483
SHA1 bbf29e7ea8188b5521b4b8dbce8b4646da1a2ec3
SHA256 d5a3af795396ed83d7eb1df9331359b8c48b99fd36bff734561b9dab2b059517
SHA512 9df03064707ca9bed52d8f3fc05940d25696d2711ba5fd21cbd6e217cb857d97847b958e67a1adb37aad84948baf1edc60f2f15a1711d128b4a4dd432ffd47a3

memory/3064-466-0x000007FEF5183000-0x000007FEF5184000-memory.dmp

memory/3064-467-0x000007FEF5180000-0x000007FEF5B6C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-25 11:12

Reported

2024-06-25 11:15

Platform

win10v2004-20240508-en

Max time kernel

147s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe"

Signatures

Chaos

ransomware chaos

Chaos Ransomware

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Deletes shadow copies

ransomware defense_evasion impact execution

Modifies boot configuration data using bcdedit

ransomware evasion
Description Indicator Process Target
N/A N/A C:\Windows\system32\bcdedit.exe N/A
N/A N/A C:\Windows\system32\bcdedit.exe N/A

Deletes backup catalog

ransomware
Description Indicator Process Target
N/A N/A C:\Windows\system32\wbadmin.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe N/A
Key value queried \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Roaming\MR99.exe N/A

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\MR99.url C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\說明it.txt C:\Users\Admin\AppData\Roaming\MR99.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\MR99.exe N/A

Reads user/profile data of web browsers

spyware stealer

Drops desktop.ini file(s)

Description Indicator Process Target
File opened for modification C:\Users\Admin\Contacts\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\Pictures\Saved Pictures\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\Favorites\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\Videos\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Public\Pictures\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Public\Videos\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Public\Desktop\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\Music\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\Searches\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\Documents\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\OneDrive\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\Links\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\AccountPictures\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\Downloads\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\Saved Games\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification F:\$RECYCLE.BIN\S-1-5-21-4124900551-4068476067-3491212533-1000\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\Pictures\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\Desktop\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\Pictures\Camera Roll\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Public\Documents\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A
File opened for modification C:\Users\Public\Music\desktop.ini C:\Users\Admin\AppData\Roaming\MR99.exe N/A

Sets desktop wallpaper using registry

ransomware
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\w2vy7ogcx.jpg" C:\Users\Admin\AppData\Roaming\MR99.exe N/A

Enumerates physical storage devices

Checks SCSI registry key(s)

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_DADY&PROD_HARDDISK\4&215468A5&0&000000 C:\Windows\System32\vds.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName C:\Windows\System32\vds.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_QEMU&PROD_QEMU_DVD-ROM\4&215468A5&0&010000 C:\Windows\System32\vds.exe N/A
Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_QEMU&Prod_QEMU_DVD-ROM\4&215468a5&0&010000\FriendlyName C:\Windows\System32\vds.exe N/A

Interacts with shadow copies

ransomware
Description Indicator Process Target
N/A N/A C:\Windows\system32\vssadmin.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000_Classes\Local Settings C:\Users\Admin\AppData\Roaming\MR99.exe N/A

Suspicious behavior: AddClipboardFormatListener

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\MR99.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MR99.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MR99.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MR99.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MR99.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MR99.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MR99.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MR99.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MR99.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MR99.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MR99.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MR99.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MR99.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MR99.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MR99.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MR99.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MR99.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MR99.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MR99.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MR99.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MR99.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MR99.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\MR99.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\MR99.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeAuditPrivilege N/A C:\Windows\system32\vssvc.exe N/A
Token: SeIncreaseQuotaPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeSystemtimePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeUndockPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeManageVolumePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: 33 N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: 34 N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: 35 N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: 36 N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeIncreaseQuotaPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeTakeOwnershipPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeLoadDriverPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeSystemProfilePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeSystemtimePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeProfSingleProcessPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeSystemEnvironmentPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeUndockPrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeManageVolumePrivilege N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: 33 N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: 34 N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: 35 N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: 36 N/A C:\Windows\System32\Wbem\WMIC.exe N/A
Token: SeBackupPrivilege N/A C:\Windows\system32\wbengine.exe N/A
Token: SeRestorePrivilege N/A C:\Windows\system32\wbengine.exe N/A
Token: SeSecurityPrivilege N/A C:\Windows\system32\wbengine.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4464 wrote to memory of 3560 N/A C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe C:\Users\Admin\AppData\Roaming\MR99.exe
PID 4464 wrote to memory of 3560 N/A C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe C:\Users\Admin\AppData\Roaming\MR99.exe
PID 3560 wrote to memory of 1224 N/A C:\Users\Admin\AppData\Roaming\MR99.exe C:\Windows\System32\cmd.exe
PID 3560 wrote to memory of 1224 N/A C:\Users\Admin\AppData\Roaming\MR99.exe C:\Windows\System32\cmd.exe
PID 1224 wrote to memory of 4048 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\vssadmin.exe
PID 1224 wrote to memory of 4048 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\vssadmin.exe
PID 1224 wrote to memory of 5032 N/A C:\Windows\System32\cmd.exe C:\Windows\System32\Wbem\WMIC.exe
PID 1224 wrote to memory of 5032 N/A C:\Windows\System32\cmd.exe C:\Windows\System32\Wbem\WMIC.exe
PID 3560 wrote to memory of 4556 N/A C:\Users\Admin\AppData\Roaming\MR99.exe C:\Windows\System32\cmd.exe
PID 3560 wrote to memory of 4556 N/A C:\Users\Admin\AppData\Roaming\MR99.exe C:\Windows\System32\cmd.exe
PID 4556 wrote to memory of 1664 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\bcdedit.exe
PID 4556 wrote to memory of 1664 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\bcdedit.exe
PID 4556 wrote to memory of 4956 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\bcdedit.exe
PID 4556 wrote to memory of 4956 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\bcdedit.exe
PID 3560 wrote to memory of 2364 N/A C:\Users\Admin\AppData\Roaming\MR99.exe C:\Windows\System32\cmd.exe
PID 3560 wrote to memory of 2364 N/A C:\Users\Admin\AppData\Roaming\MR99.exe C:\Windows\System32\cmd.exe
PID 2364 wrote to memory of 4932 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\wbadmin.exe
PID 2364 wrote to memory of 4932 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\wbadmin.exe
PID 3560 wrote to memory of 2572 N/A C:\Users\Admin\AppData\Roaming\MR99.exe C:\Windows\system32\NOTEPAD.EXE
PID 3560 wrote to memory of 2572 N/A C:\Users\Admin\AppData\Roaming\MR99.exe C:\Windows\system32\NOTEPAD.EXE

Uses Task Scheduler COM API

persistence

Uses Volume Shadow Copy service COM API

ransomware

Processes

C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe

"C:\Users\Admin\AppData\Local\Temp\c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc.bin.exe"

C:\Users\Admin\AppData\Roaming\MR99.exe

"C:\Users\Admin\AppData\Roaming\MR99.exe"

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete

C:\Windows\system32\vssadmin.exe

vssadmin delete shadows /all /quiet

C:\Windows\system32\vssvc.exe

C:\Windows\system32\vssvc.exe

C:\Windows\System32\Wbem\WMIC.exe

wmic shadowcopy delete

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no

C:\Windows\system32\bcdedit.exe

bcdedit /set {default} bootstatuspolicy ignoreallfailures

C:\Windows\system32\bcdedit.exe

bcdedit /set {default} recoveryenabled no

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet

C:\Windows\system32\wbadmin.exe

wbadmin delete catalog -quiet

C:\Windows\system32\wbengine.exe

"C:\Windows\system32\wbengine.exe"

C:\Windows\System32\vdsldr.exe

C:\Windows\System32\vdsldr.exe -Embedding

C:\Windows\System32\vds.exe

C:\Windows\System32\vds.exe

C:\Windows\system32\NOTEPAD.EXE

"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\說明it.txt

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp

Files

memory/4464-1-0x00007FFA94B33000-0x00007FFA94B35000-memory.dmp

memory/4464-0-0x0000000000340000-0x000000000036C000-memory.dmp

C:\Users\Admin\AppData\Roaming\MR99.exe

MD5 b12ba245044aebefd213e83d96bbe30e
SHA1 13dd3338a25156109ba6957d05d5639d8e12d275
SHA256 c3f0bfffe865e3b8de9cb96dada72c743bec39626010d9ebe926c9d326b56fdc
SHA512 e7865415f12621d4a327ba2d7741a6f9354a758c2d7727d081e4b2787e9d01b971f8c4693dd7540f982a15de668f9596e25f13900d7d6fb5de04be199ec4d682

memory/3560-14-0x00007FFA94B30000-0x00007FFA955F1000-memory.dmp

memory/3560-22-0x00007FFA94B30000-0x00007FFA955F1000-memory.dmp

C:\Users\Admin\Documents\說明it.txt

MD5 49a1cf89d0ddde160c817935eae02483
SHA1 bbf29e7ea8188b5521b4b8dbce8b4646da1a2ec3
SHA256 d5a3af795396ed83d7eb1df9331359b8c48b99fd36bff734561b9dab2b059517
SHA512 9df03064707ca9bed52d8f3fc05940d25696d2711ba5fd21cbd6e217cb857d97847b958e67a1adb37aad84948baf1edc60f2f15a1711d128b4a4dd432ffd47a3

memory/3560-461-0x00007FFA94B30000-0x00007FFA955F1000-memory.dmp