locky | c2e56510866a6e038ac723a3e5a2ac66b14f407b91886077727f622f561164e3

General

Target

SecuriteInfo.com.FileCryptor.PTG.13500.21467.exe
Size

625KB
MD5

1934bc240ae9e8e101490a9dab13c079
SHA1

a0218048aaca34259d0651d911b81f9f12a30326
SHA256

c2e56510866a6e038ac723a3e5a2ac66b14f407b91886077727f622f561164e3
SHA512

c7f3c47a2be2be14387f762164db8b4d097cddd1f72efa0e81e59379b1e44cb7f71b56c05920ecbadc6662c58d9bb84d2c8dd4ffae9ecbae67bf0d8978a8a5d5

Score

10^/10

locky persistence ransomware

Malware Config

Signatures

Locky
Ransomware strain released in 2016, with advanced features like anti-analysis.
ransomware locky
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Modifies extensions of user files 3 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

SecuriteInfo.com.FileCryptor.PTG.13500.21467.exe

description	ioc	process
File opened for modification	\??\c:\Users\Admin\Pictures\RemoveDisconnect.tiff	SecuriteInfo.com.FileCryptor.PTG.13500.21467.exe
File opened for modification	\??\c:\Users\Admin\Pictures\RestoreRevoke.tiff	SecuriteInfo.com.FileCryptor.PTG.13500.21467.exe
File opened for modification	\??\c:\Users\Admin\Pictures\StepJoin.tiff	SecuriteInfo.com.FileCryptor.PTG.13500.21467.exe

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1600 cmd.exe

pid	process
1600	cmd.exe

Modifies service 2 TTPs 6 IoCs

persistence

Modify Registry

T1112

Modify Existing Service

T1031

Processes:

vssvc.exeSecuriteInfo.com.FileCryptor.PTG.13500.21467.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\COM+ REGDB Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\ASR Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Shadow Copy Optimization Writer	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\SwProvider_{b5946137-7b9f-4925-af80-51abd60b20d5}	vssvc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\VssapiPublisher	SecuriteInfo.com.FileCryptor.PTG.13500.21467.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Registry Writer	vssvc.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

Processes:

SecuriteInfo.com.FileCryptor.PTG.13500.21467.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\asasin.bmp"	SecuriteInfo.com.FileCryptor.PTG.13500.21467.exe

Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Processes:

vssadmin.exe

pid process

968 vssadmin.exe

pid	process
968	vssadmin.exe

Modifies Control Panel 2 IoCs

evasion

Processes:

SecuriteInfo.com.FileCryptor.PTG.13500.21467.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Control Panel\Desktop\WallpaperStyle = "0"	SecuriteInfo.com.FileCryptor.PTG.13500.21467.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Control Panel\Desktop\TileWallpaper = "0"	SecuriteInfo.com.FileCryptor.PTG.13500.21467.exe

Modifies Internet Explorer settings 1 TTPs 36 IoCs

adware spyware

Modify Registry

T1112

Processes:

iexplore.exeIEXPLORE.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000033044fc40189d459fe40d0e3dcc9b6600000000020000000000106600000001000020000000855fb3834b166c45f5daac5b27558077aabcd20f6c5a7aa6eebf1c9f9f1b74f2000000000e8000000002000020000000bae23ba89b6993f8788059506313cf80878ca5ec4f50c08043da1ec3c658abe920000000fc72d8390d2c6f89aeeb921ab83e945fddde5db3caeec34dac59713bbd05c5e440000000527571854846712b755133d574879cc0cd1c9a694e1787df26e1c84f740f5f657fab47aa87be9b35ebb920be76b14453017555be4489df1c9d59d56a554d65a0	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "311839210"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{BBF084F1-23E2-11EB-9964-C611B4A1F110} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 80ef8995efb7d601	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

SecuriteInfo.com.FileCryptor.PTG.13500.21467.exevssvc.exe

description	pid	process
Token: SeDebugPrivilege	1080	SecuriteInfo.com.FileCryptor.PTG.13500.21467.exe
Token: SeTakeOwnershipPrivilege	1080	SecuriteInfo.com.FileCryptor.PTG.13500.21467.exe
Token: SeBackupPrivilege	1080	SecuriteInfo.com.FileCryptor.PTG.13500.21467.exe
Token: SeRestorePrivilege	1080	SecuriteInfo.com.FileCryptor.PTG.13500.21467.exe
Token: SeBackupPrivilege	1580	vssvc.exe
Token: SeRestorePrivilege	1580	vssvc.exe
Token: SeAuditPrivilege	1580	vssvc.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

iexplore.exeDllHost.exe

pid process

2036 iexplore.exe
1980 DllHost.exe
Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

iexplore.exeIEXPLORE.EXE

pid process

2036 iexplore.exe
2036 iexplore.exe
1736 IEXPLORE.EXE
1736 IEXPLORE.EXE

pid	process
2036	iexplore.exe
1980	DllHost.exe

pid	process
2036	iexplore.exe
2036	iexplore.exe
1736	IEXPLORE.EXE
1736	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

taskeng.exeSecuriteInfo.com.FileCryptor.PTG.13500.21467.exeiexplore.exe

description	pid	process	target process
PID 460 wrote to memory of 968	460	taskeng.exe	vssadmin.exe
PID 460 wrote to memory of 968	460	taskeng.exe	vssadmin.exe
PID 460 wrote to memory of 968	460	taskeng.exe	vssadmin.exe
PID 1080 wrote to memory of 2036	1080	SecuriteInfo.com.FileCryptor.PTG.13500.21467.exe	iexplore.exe
PID 1080 wrote to memory of 2036	1080	SecuriteInfo.com.FileCryptor.PTG.13500.21467.exe	iexplore.exe
PID 1080 wrote to memory of 2036	1080	SecuriteInfo.com.FileCryptor.PTG.13500.21467.exe	iexplore.exe
PID 1080 wrote to memory of 2036	1080	SecuriteInfo.com.FileCryptor.PTG.13500.21467.exe	iexplore.exe
PID 1080 wrote to memory of 1600	1080	SecuriteInfo.com.FileCryptor.PTG.13500.21467.exe	cmd.exe
PID 1080 wrote to memory of 1600	1080	SecuriteInfo.com.FileCryptor.PTG.13500.21467.exe	cmd.exe
PID 1080 wrote to memory of 1600	1080	SecuriteInfo.com.FileCryptor.PTG.13500.21467.exe	cmd.exe
PID 1080 wrote to memory of 1600	1080	SecuriteInfo.com.FileCryptor.PTG.13500.21467.exe	cmd.exe
PID 2036 wrote to memory of 1736	2036	iexplore.exe	IEXPLORE.EXE
PID 2036 wrote to memory of 1736	2036	iexplore.exe	IEXPLORE.EXE
PID 2036 wrote to memory of 1736	2036	iexplore.exe	IEXPLORE.EXE
PID 2036 wrote to memory of 1736	2036	iexplore.exe	IEXPLORE.EXE

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileCryptor.PTG.13500.21467.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileCryptor.PTG.13500.21467.exe"
1⤵
- Modifies extensions of user files
- Modifies service
- Sets desktop wallpaper using registry
- Modifies Control Panel
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1080

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\Desktop\asasin.htm
2⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2036

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2036 CREDAT:275457 /prefetch:2
3⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1736

C:\Windows\SysWOW64\cmd.exe
cmd.exe /C del /Q /F "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileCryptor.PTG.13500.21467.exe"
2⤵
- Deletes itself
PID:1600

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Modifies service
- Suspicious use of AdjustPrivilegeToken
PID:1580

C:\Windows\system32\taskeng.exe
taskeng.exe {60D0C371-E6AB-4A7F-B238-51082FFFDB7D} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:460

C:\Windows\system32\vssadmin.exe
C:\Windows\system32\vssadmin.exe Delete Shadows /Quiet /All
2⤵
- Interacts with shadow copies
PID:968

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- Suspicious use of FindShellTrayWindow
PID:1980

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Privilege Escalation

Defense Evasion

File Deletion

2

T1107

Modify Registry

3

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Inhibit System Recovery

2

T1490

Defacement

1

T1491

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\FAVMOO3S.txt
MD5
029967bb8b03c0dad8fb4a84615fa1dc

SHA1
c6bcfcfecccda2f9a4dc1b8264e626a8f46ce7ca

SHA256
b03ce153ebb46051eebe732a52c6bdb7d41ace34a8f1b55502b2ab4804a7b712

SHA512
79fca22662df59a7304af4074eb2987f7d6cd92b01255762b366efd793ed4370952b516c45b878575c9644443018e79716db8f7a2921fa3b377d44ec959f7d13

Download Submit
C:\Users\Admin\Desktop\asasin.bmp
MD5
a1d31d738d9fe9852cfcea66937b004b

SHA1
2e1b95ca23971e248d2c482a4197d124f3390429

SHA256
b6b92eb62c110b9931ad2fa0d19765bc5dc5e5ac81b037a00f42a11d15550af2

SHA512
6cf3d6f41429b60810bbe52d0fd663384f951cf89880a210e5a194903a3b4f85268025de96fb21d694f828038219bd29482ae8da7992c05a549484f85c63e6cf

Download Submit
C:\Users\Admin\Desktop\asasin.htm
MD5
f0b8461aeecb092966005e0679828595

SHA1
31d21ccc5386c8453e99485378ffd91051776d7d

SHA256
b8d30deca511c1fb19fedb1d76330e0403ee6ed466e6b8897afc3b80974ff848

SHA512
6bbe6d87826f612aaef57db4725e9fc5624e58e905b680146aa9cb5acc49c6d0f7eb89a1e25bffd0cc4b1ae6303fc8a513c4f768a238dd33e56356e45e70d941

Download Submit
memory/316-3-0x000007FEF63C0000-0x000007FEF663A000-memory.dmp

Filesize
2.5MB

Download
memory/968-0-0x0000000000000000-mapping.dmp

Download
memory/1600-4-0x0000000000000000-mapping.dmp

Download
memory/1736-5-0x0000000000000000-mapping.dmp

Download
memory/2036-2-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads