chaos | bbb5c6b4f85c81a323d11d34629776e99ca40e983c5ce0d0a3d540addb1c2fe3

Analysis

max time kernel
120s
max time network
125s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
06-11-2024 12:32

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General

Target

TrojanRansomCovid29.exe
Size

542KB
MD5

9f0563f2faaf6b9a0f7b3cf058ac80b6
SHA1

244e0ff0a5366c1607f104e7e7af4949510226ec
SHA256

a8054338891db7231f9885ca0d3bc90a651c63878ff603ede5c3efafa7e25254
SHA512

40cdf4c754977e60c233417e42a62be02f9b5bfe239c0378664c28757ce6ce1fc3b91b83d6ef6bb184c4d831761f57a07255526d12a3a955c3b473bddb97f4c9
SSDEEP

12288:xBv407Pg09KyclZbmoYsp8L/0C7Cvb3p62STTzfGGz9oSzrfI:xh5rgjycXbm0K/EzQl/xDrfI

Score

10^/10

chaos bootkit defense_evasion discovery evasion execution impact persistence ransomware spyware stealer trojan upx

Malware Config

Signatures

Chaos
Ransomware family first seen in June 2021.
ransomware chaos

Chaos Ransomware 5 IoCs

resource	yara_rule
behavioral1/files/0x000500000001a473-69.dat	family_chaos
behavioral1/memory/2132-78-0x00000000013E0000-0x0000000001400000-memory.dmp	family_chaos
behavioral1/memory/2316-84-0x0000000000F30000-0x0000000000F50000-memory.dmp	family_chaos
behavioral1/memory/2880-147-0x0000000000400000-0x00000000005D5000-memory.dmp	family_chaos
behavioral1/memory/2880-152-0x0000000000400000-0x00000000005D5000-memory.dmp	family_chaos

Chaos family
chaos

UAC bypass 3 TTPs 2 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	reg.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	reg.exe

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
1616	bcdedit.exe
2908	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
2792	wbadmin.exe

Disables Task Manager via registry modification
evasion

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\covid29-is-here.txt	svchost.exe

Executes dropped EXE 4 IoCs

pid	Process
1504	mbr.exe
2132	Cov29Cry.exe
2316	svchost.exe
1044	Cov29LockScreen.exe

Loads dropped DLL 5 IoCs

pid	Process
2112	cmd.exe
2112	cmd.exe
2112	cmd.exe
2112	cmd.exe
2112	cmd.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	C:\Users\Public\Videos\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Saved Games\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\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Pictures\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Contacts\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\Recent\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\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\Favorites\Links for United States\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\Downloads\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\Admin\Pictures\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\Libraries\desktop.ini	svchost.exe
File opened for modification	C:\Users\Public\Pictures\Sample Pictures\desktop.ini	svchost.exe
File opened for modification	F:\$RECYCLE.BIN\S-1-5-21-3692679935-4019334568-335155002-1000\desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\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\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\Maintenance\Desktop.ini	svchost.exe
File opened for modification	C:\Users\Admin\Desktop\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\Public\Music\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	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

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	mbr.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-1-5-21-3692679935-4019334568-335155002-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\f8uui29v4.jpg"	svchost.exe

UPX packed file 3 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2880-0-0x0000000000400000-0x00000000005D5000-memory.dmp	upx
behavioral1/memory/2880-147-0x0000000000400000-0x00000000005D5000-memory.dmp	upx
behavioral1/memory/2880-152-0x0000000000400000-0x00000000005D5000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 15 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	shutdown.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Cov29LockScreen.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TrojanRansomCovid29.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
1056	PING.EXE
2216	PING.EXE

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
904	vssadmin.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
2484	taskkill.exe

Modifies registry key 1 TTPs 7 IoCs

Modify Registry

T1112

pid	Process
2564	reg.exe
2528	reg.exe
1132	reg.exe
2016	reg.exe
896	reg.exe
2844	reg.exe
2168	reg.exe

Runs ping.exe 1 TTPs 2 IoCs

Remote System Discovery

T1018

pid	Process
1056	PING.EXE
2216	PING.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2316	svchost.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2132	Cov29Cry.exe
2132	Cov29Cry.exe
2132	Cov29Cry.exe
2316	svchost.exe
2316	svchost.exe
2316	svchost.exe
2316	svchost.exe

Suspicious use of AdjustPrivilegeToken 51 IoCs

description	pid	Process
Token: SeShutdownPrivilege	2304	shutdown.exe
Token: SeRemoteShutdownPrivilege	2304	shutdown.exe
Token: SeDebugPrivilege	2132	Cov29Cry.exe
Token: SeDebugPrivilege	2316	svchost.exe
Token: SeBackupPrivilege	1088	vssvc.exe
Token: SeRestorePrivilege	1088	vssvc.exe
Token: SeAuditPrivilege	1088	vssvc.exe
Token: SeDebugPrivilege	2484	taskkill.exe
Token: SeIncreaseQuotaPrivilege	2388	WMIC.exe
Token: SeSecurityPrivilege	2388	WMIC.exe
Token: SeTakeOwnershipPrivilege	2388	WMIC.exe
Token: SeLoadDriverPrivilege	2388	WMIC.exe
Token: SeSystemProfilePrivilege	2388	WMIC.exe
Token: SeSystemtimePrivilege	2388	WMIC.exe
Token: SeProfSingleProcessPrivilege	2388	WMIC.exe
Token: SeIncBasePriorityPrivilege	2388	WMIC.exe
Token: SeCreatePagefilePrivilege	2388	WMIC.exe
Token: SeBackupPrivilege	2388	WMIC.exe
Token: SeRestorePrivilege	2388	WMIC.exe
Token: SeShutdownPrivilege	2388	WMIC.exe
Token: SeDebugPrivilege	2388	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2388	WMIC.exe
Token: SeRemoteShutdownPrivilege	2388	WMIC.exe
Token: SeUndockPrivilege	2388	WMIC.exe
Token: SeManageVolumePrivilege	2388	WMIC.exe
Token: 33	2388	WMIC.exe
Token: 34	2388	WMIC.exe
Token: 35	2388	WMIC.exe
Token: SeIncreaseQuotaPrivilege	2388	WMIC.exe
Token: SeSecurityPrivilege	2388	WMIC.exe
Token: SeTakeOwnershipPrivilege	2388	WMIC.exe
Token: SeLoadDriverPrivilege	2388	WMIC.exe
Token: SeSystemProfilePrivilege	2388	WMIC.exe
Token: SeSystemtimePrivilege	2388	WMIC.exe
Token: SeProfSingleProcessPrivilege	2388	WMIC.exe
Token: SeIncBasePriorityPrivilege	2388	WMIC.exe
Token: SeCreatePagefilePrivilege	2388	WMIC.exe
Token: SeBackupPrivilege	2388	WMIC.exe
Token: SeRestorePrivilege	2388	WMIC.exe
Token: SeShutdownPrivilege	2388	WMIC.exe
Token: SeDebugPrivilege	2388	WMIC.exe
Token: SeSystemEnvironmentPrivilege	2388	WMIC.exe
Token: SeRemoteShutdownPrivilege	2388	WMIC.exe
Token: SeUndockPrivilege	2388	WMIC.exe
Token: SeManageVolumePrivilege	2388	WMIC.exe
Token: 33	2388	WMIC.exe
Token: 34	2388	WMIC.exe
Token: 35	2388	WMIC.exe
Token: SeBackupPrivilege	2700	wbengine.exe
Token: SeRestorePrivilege	2700	wbengine.exe
Token: SeSecurityPrivilege	2700	wbengine.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1044	Cov29LockScreen.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2880 wrote to memory of 2112	2880	TrojanRansomCovid29.exe	30
PID 2880 wrote to memory of 2112	2880	TrojanRansomCovid29.exe	30
PID 2880 wrote to memory of 2112	2880	TrojanRansomCovid29.exe	30
PID 2880 wrote to memory of 2112	2880	TrojanRansomCovid29.exe	30
PID 2112 wrote to memory of 2408	2112	cmd.exe	32
PID 2112 wrote to memory of 2408	2112	cmd.exe	32
PID 2112 wrote to memory of 2408	2112	cmd.exe	32
PID 2112 wrote to memory of 2408	2112	cmd.exe	32
PID 2112 wrote to memory of 1056	2112	cmd.exe	33
PID 2112 wrote to memory of 1056	2112	cmd.exe	33
PID 2112 wrote to memory of 1056	2112	cmd.exe	33
PID 2112 wrote to memory of 1056	2112	cmd.exe	33
PID 2112 wrote to memory of 1132	2112	cmd.exe	34
PID 2112 wrote to memory of 1132	2112	cmd.exe	34
PID 2112 wrote to memory of 1132	2112	cmd.exe	34
PID 2112 wrote to memory of 1132	2112	cmd.exe	34
PID 2112 wrote to memory of 2016	2112	cmd.exe	35
PID 2112 wrote to memory of 2016	2112	cmd.exe	35
PID 2112 wrote to memory of 2016	2112	cmd.exe	35
PID 2112 wrote to memory of 2016	2112	cmd.exe	35
PID 2112 wrote to memory of 896	2112	cmd.exe	36
PID 2112 wrote to memory of 896	2112	cmd.exe	36
PID 2112 wrote to memory of 896	2112	cmd.exe	36
PID 2112 wrote to memory of 896	2112	cmd.exe	36
PID 2112 wrote to memory of 2844	2112	cmd.exe	37
PID 2112 wrote to memory of 2844	2112	cmd.exe	37
PID 2112 wrote to memory of 2844	2112	cmd.exe	37
PID 2112 wrote to memory of 2844	2112	cmd.exe	37
PID 2112 wrote to memory of 2168	2112	cmd.exe	38
PID 2112 wrote to memory of 2168	2112	cmd.exe	38
PID 2112 wrote to memory of 2168	2112	cmd.exe	38
PID 2112 wrote to memory of 2168	2112	cmd.exe	38
PID 2112 wrote to memory of 2564	2112	cmd.exe	39
PID 2112 wrote to memory of 2564	2112	cmd.exe	39
PID 2112 wrote to memory of 2564	2112	cmd.exe	39
PID 2112 wrote to memory of 2564	2112	cmd.exe	39
PID 2112 wrote to memory of 2528	2112	cmd.exe	40
PID 2112 wrote to memory of 2528	2112	cmd.exe	40
PID 2112 wrote to memory of 2528	2112	cmd.exe	40
PID 2112 wrote to memory of 2528	2112	cmd.exe	40
PID 2112 wrote to memory of 1504	2112	cmd.exe	41
PID 2112 wrote to memory of 1504	2112	cmd.exe	41
PID 2112 wrote to memory of 1504	2112	cmd.exe	41
PID 2112 wrote to memory of 1504	2112	cmd.exe	41
PID 2112 wrote to memory of 2132	2112	cmd.exe	42
PID 2112 wrote to memory of 2132	2112	cmd.exe	42
PID 2112 wrote to memory of 2132	2112	cmd.exe	42
PID 2112 wrote to memory of 2132	2112	cmd.exe	42
PID 2112 wrote to memory of 2304	2112	cmd.exe	43
PID 2112 wrote to memory of 2304	2112	cmd.exe	43
PID 2112 wrote to memory of 2304	2112	cmd.exe	43
PID 2112 wrote to memory of 2304	2112	cmd.exe	43
PID 2112 wrote to memory of 2216	2112	cmd.exe	45
PID 2112 wrote to memory of 2216	2112	cmd.exe	45
PID 2112 wrote to memory of 2216	2112	cmd.exe	45
PID 2112 wrote to memory of 2216	2112	cmd.exe	45
PID 2132 wrote to memory of 2316	2132	Cov29Cry.exe	47
PID 2132 wrote to memory of 2316	2132	Cov29Cry.exe	47
PID 2132 wrote to memory of 2316	2132	Cov29Cry.exe	47
PID 2316 wrote to memory of 236	2316	svchost.exe	48
PID 2316 wrote to memory of 236	2316	svchost.exe	48
PID 2316 wrote to memory of 236	2316	svchost.exe	48
PID 236 wrote to memory of 904	236	cmd.exe	51
PID 236 wrote to memory of 904	236	cmd.exe	51

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\TrojanRansomCovid29.exe
"C:\Users\Admin\AppData\Local\Temp\TrojanRansomCovid29.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2880
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\5937.tmp\TrojanRansomCovid29.bat" "
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2112
- - C:\Windows\SysWOW64\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\5937.tmp\fakeerror.vbs"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2408
- - C:\Windows\SysWOW64\PING.EXE
    ping localhost -n 2
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:1056
- - C:\Windows\SysWOW64\reg.exe
    reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Modifies registry key
    PID:1132
- - C:\Windows\SysWOW64\reg.exe
    reg add HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System /v HideFastUserSwitching /t REG_DWORD /d 1 /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Modifies registry key
    PID:2016
- - C:\Windows\SysWOW64\reg.exe
    reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableChangePassword /t REG_DWORD /d 1 /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Modifies registry key
    PID:896
- - C:\Windows\SysWOW64\reg.exe
    reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableLockWorkstation /t REG_DWORD /d 1 /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Modifies registry key
    PID:2844
- - C:\Windows\SysWOW64\reg.exe
    reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoLogoff /t REG_DWORD /d 1 /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Modifies registry key
    PID:2168
- - C:\Windows\SysWOW64\reg.exe
    reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v ConsentPromptBehaviorAdmin /t REG_DWORD /d 0 /f
    3⤵
    - UAC bypass
    - System Location Discovery: System Language Discovery
    - Modifies registry key
    PID:2564
- - C:\Windows\SysWOW64\reg.exe
    reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
    3⤵
    - UAC bypass
    - System Location Discovery: System Language Discovery
    - Modifies registry key
    PID:2528
- - C:\Users\Admin\AppData\Local\Temp\5937.tmp\mbr.exe
    mbr.exe
    3⤵
    - Executes dropped EXE
    - Writes to the Master Boot Record (MBR)
    PID:1504
- - C:\Users\Admin\AppData\Local\Temp\5937.tmp\Cov29Cry.exe
    Cov29Cry.exe
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2132
  - - C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\svchost.exe"
      4⤵
      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:2316
    - - C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:236
      - C:\Windows\system32\vssadmin.exe
        
        vssadmin delete shadows /all /quiet
        6⤵
        Interacts with shadow copies
        
        PID:904
      - C:\Windows\System32\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        6⤵
        Suspicious use of AdjustPrivilegeToken
        
        PID:2388
    - - C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no
        5⤵
        
        PID:1604
      - C:\Windows\system32\bcdedit.exe
        
        bcdedit /set {default} bootstatuspolicy ignoreallfailures
        6⤵
        Modifies boot configuration data using bcdedit
        
        PID:1616
      - C:\Windows\system32\bcdedit.exe
        
        bcdedit /set {default} recoveryenabled no
        6⤵
        Modifies boot configuration data using bcdedit
        
        PID:2908
    - - C:\Windows\System32\cmd.exe
        
        "C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet
        5⤵
        
        PID:1988
      - C:\Windows\system32\wbadmin.exe
        
        wbadmin delete catalog -quiet
        6⤵
        Deletes backup catalog
        
        PID:2792
    - - C:\Windows\system32\NOTEPAD.EXE
        
        "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\covid29-is-here.txt
        5⤵
        
        PID:396
- - C:\Windows\SysWOW64\shutdown.exe
    shutdown /r /t 300 /c "5 minutes to pay until you lose your data and system forever"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2304
- - C:\Windows\SysWOW64\PING.EXE
    ping localhost -n 9
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2216
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /f /im explorer.exe
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2484
- - C:\Users\Admin\AppData\Local\Temp\5937.tmp\Cov29LockScreen.exe
    Cov29LockScreen.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    PID:1044

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1088

C:\Windows\system32\wbengine.exe
"C:\Windows\system32\wbengine.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2700

C:\Windows\System32\vdsldr.exe
C:\Windows\System32\vdsldr.exe -Embedding
1⤵
PID:2832

C:\Windows\System32\vds.exe
C:\Windows\System32\vds.exe
1⤵
PID:2780

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Management Instrumentation

T1047

Persistence

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Direct Volume Access

T1006

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

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

Remote System Discovery

T1018

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

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\Local\Temp\5937.tmp\Cov29Cry.exe.death

Filesize
103KB

MD5
8bcd083e16af6c15e14520d5a0bd7e6a

SHA1
c4d2f35d1fdb295db887f31bbc9237ac9263d782

SHA256
b4f78ff66dc3f5f8ddd694166e6b596d533830792f9b5f1634d3f5f17d6a884a

SHA512
35999577be0626b50eeab65b493d48af2ab42b699f7241d2780647bf7d72069216d99f5f708337a109e79b9c9229613b8341f44c6d96245fd1f3ac9f05814d6a

Download Submit
C:\Users\Admin\AppData\Local\Temp\5937.tmp\Cov29LockScreen.exe

Filesize
48KB

MD5
f724c6da46dc54e6737db821f9b62d77

SHA1
e35d5587326c61f4d7abd75f2f0fc1251b961977

SHA256
6cde4a9f109ae5473703c4f5962f43024d71d2138cbd889223283e7b71e5911c

SHA512
6f83dd7821828771a9cae34881c611522f6b5a567f5832f9e4b9b4b59bf495f40ad78678bd86cba59d32ea8644b4aa5f052552774fea142b9d6da625b55b6afc

Download Submit
C:\Users\Admin\AppData\Local\Temp\5937.tmp\TrojanRansomCovid29.bat

Filesize
1KB

MD5
57f0432c8e31d4ff4da7962db27ef4e8

SHA1
d5023b3123c0b7fae683588ac0480cd2731a0c5e

SHA256
b82e64e533789c639d8e193b78e06fc028ea227f55d7568865120be080179afc

SHA512
bc082486503a95f8e2ce7689d31423386a03054c5e8e20e61250ca7b7a701e98489f5932eba4837e05ec935057f18633798a10f6f84573a95fcf086ee7cabcbf

Download Submit
C:\Users\Admin\AppData\Local\Temp\5937.tmp\fakeerror.vbs

Filesize
144B

MD5
c0437fe3a53e181c5e904f2d13431718

SHA1
44f9547e7259a7fb4fe718e42e499371aa188ab6

SHA256
f2571f03eb9d5ee4dca29a8fec1317ded02973c5dd233d582f56cebe98544f22

SHA512
a6b488fc74dc69fc4227f92a06deb297d19cd54b0e07659f9c9a76ce15d1ef1d8fa4d607acdd03d30d3e2be2a0f59503e27fc95f03f3006e137fa2f92825e7e3

Download Submit
C:\Users\Admin\AppData\Local\Temp\5937.tmp\mbr.exe.danger

Filesize
1.3MB

MD5
35af6068d91ba1cc6ce21b461f242f94

SHA1
cb054789ff03aa1617a6f5741ad53e4598184ffa

SHA256
9ac99df89c676a55b48de00384506f4c232c75956b1e465f7fe437266002655e

SHA512
136e3066c6e44af30691bcd76d9af304af0edf69f350211cf74d6713c4c952817a551757194b71c3b49ac3f87a6f0aa88fb80eb1e770d0f0dd82b29bfce80169

Download Submit
C:\Users\Admin\Desktop\covid29-is-here.txt

Filesize
861B

MD5
c53dee51c26d1d759667c25918d3ed10

SHA1
da194c2de15b232811ba9d43a46194d9729507f0

SHA256
dd5b3d185ae1809407e7822de4fced945115b48cc33b2950a8da9ebd77a68c52

SHA512
da41cef03f1b5f21a1fca2cfbf1b2b180c261a75d391be3a1ba36e8d4d4aefab8db024391bbee06b99de0cb0b8eb8c89f2a304c27e20c0af171b77db33b2d12c

Download Submit
memory/1504-76-0x0000000000400000-0x00000000004D8000-memory.dmp

Filesize
864KB

Download
memory/2132-78-0x00000000013E0000-0x0000000001400000-memory.dmp

Filesize
128KB

Download
memory/2316-84-0x0000000000F30000-0x0000000000F50000-memory.dmp

Filesize
128KB

Download
memory/2880-0-0x0000000000400000-0x00000000005D5000-memory.dmp

Filesize
1.8MB

Download
memory/2880-147-0x0000000000400000-0x00000000005D5000-memory.dmp

Filesize
1.8MB

Download
memory/2880-152-0x0000000000400000-0x00000000005D5000-memory.dmp

Filesize
1.8MB

Download