locky | da0c0089713cfd5b47f425f23c23f9a9d82e62000873747dce1a73220319f93e

General

Target

SecuriteInfo.com.FileCryptor.PSW.3725.32198.exe
Size

621KB
MD5

35ac4323f2ba28cc314cc9cd8be87326
SHA1

23177683c38774505bbfaaeba9060659d1086d85
SHA256

da0c0089713cfd5b47f425f23c23f9a9d82e62000873747dce1a73220319f93e
SHA512

a0e8acd3850bbae521130dd4bc67692a4fc9b5c2a7d33c4d31666c99347603a301cd24f63c1fa5e4ac63f8e1bda6dbdf048f248ab96f2a7d1d899372846ca8e4

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 2 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

SecuriteInfo.com.FileCryptor.PSW.3725.32198.exe

description	ioc	process
File opened for modification	\??\c:\Users\Admin\Pictures\SplitComplete.tiff	SecuriteInfo.com.FileCryptor.PSW.3725.32198.exe
File opened for modification	\??\c:\Users\Admin\Pictures\CheckpointExport.tiff	SecuriteInfo.com.FileCryptor.PSW.3725.32198.exe

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1680 cmd.exe

pid	process
1680	cmd.exe

Modifies service 2 TTPs 6 IoCs

persistence

Modify Registry

T1112

Modify Existing Service

T1031

Processes:

SecuriteInfo.com.FileCryptor.PSW.3725.32198.exevssvc.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\VssapiPublisher	SecuriteInfo.com.FileCryptor.PSW.3725.32198.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VSS\Diag\Registry Writer	vssvc.exe
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

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

Processes:

SecuriteInfo.com.FileCryptor.PSW.3725.32198.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.PSW.3725.32198.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

1296 vssadmin.exe

pid	process
1296	vssadmin.exe

Modifies Control Panel 2 IoCs

evasion

Processes:

SecuriteInfo.com.FileCryptor.PSW.3725.32198.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.PSW.3725.32198.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Control Panel\Desktop\TileWallpaper = "0"	SecuriteInfo.com.FileCryptor.PSW.3725.32198.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\Main\WindowsSearch	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	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	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\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\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000033044fc40189d459fe40d0e3dcc9b66000000000200000000001066000000010000200000000c741be067c476a3d7e53b6f84a3888ce7784931bd905dfcfe1f38830f4404c6000000000e8000000002000020000000a20576213f9396991460be6808fb906df20ea93237c44eea3c178c907b8b1de520000000f43e6e7ef818fe3f8c542e9fcca50a813ef8c88d96e2d9bb2dc76946b6b8cf7c40000000321c86ca5ddecf198978d90b93b459f44b567e96feff35942c37790ff24ad156f80eef0411a6a758179e960336fe4fcff3dfbb16fbf47fbfd4a5262a1ea38a3b	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	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 (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 90987a18f0b7d601	iexplore.exe
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\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\InternetRegistry	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\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	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\TabbedBrowsing	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
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\Zoom	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 (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "311839431"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	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
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	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\LowRegistry	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{40274F71-23E3-11EB-BFD4-CE0E229A55E0} = "0"	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

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

SecuriteInfo.com.FileCryptor.PSW.3725.32198.exevssvc.exe

description	pid	process
Token: SeDebugPrivilege	1764	SecuriteInfo.com.FileCryptor.PSW.3725.32198.exe
Token: SeTakeOwnershipPrivilege	1764	SecuriteInfo.com.FileCryptor.PSW.3725.32198.exe
Token: SeBackupPrivilege	1764	SecuriteInfo.com.FileCryptor.PSW.3725.32198.exe
Token: SeRestorePrivilege	1764	SecuriteInfo.com.FileCryptor.PSW.3725.32198.exe
Token: SeBackupPrivilege	1064	vssvc.exe
Token: SeRestorePrivilege	1064	vssvc.exe
Token: SeAuditPrivilege	1064	vssvc.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

iexplore.exeDllHost.exe

pid process

1464 iexplore.exe
1532 DllHost.exe
Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

iexplore.exeIEXPLORE.EXE

pid process

1464 iexplore.exe
1464 iexplore.exe
1692 IEXPLORE.EXE
1692 IEXPLORE.EXE

pid	process
1464	iexplore.exe
1532	DllHost.exe

pid	process
1464	iexplore.exe
1464	iexplore.exe
1692	IEXPLORE.EXE
1692	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

taskeng.exeSecuriteInfo.com.FileCryptor.PSW.3725.32198.exeiexplore.exe

description	pid	process	target process
PID 816 wrote to memory of 1296	816	taskeng.exe	vssadmin.exe
PID 816 wrote to memory of 1296	816	taskeng.exe	vssadmin.exe
PID 816 wrote to memory of 1296	816	taskeng.exe	vssadmin.exe
PID 1764 wrote to memory of 1464	1764	SecuriteInfo.com.FileCryptor.PSW.3725.32198.exe	iexplore.exe
PID 1764 wrote to memory of 1464	1764	SecuriteInfo.com.FileCryptor.PSW.3725.32198.exe	iexplore.exe
PID 1764 wrote to memory of 1464	1764	SecuriteInfo.com.FileCryptor.PSW.3725.32198.exe	iexplore.exe
PID 1764 wrote to memory of 1464	1764	SecuriteInfo.com.FileCryptor.PSW.3725.32198.exe	iexplore.exe
PID 1464 wrote to memory of 1692	1464	iexplore.exe	IEXPLORE.EXE
PID 1464 wrote to memory of 1692	1464	iexplore.exe	IEXPLORE.EXE
PID 1464 wrote to memory of 1692	1464	iexplore.exe	IEXPLORE.EXE
PID 1464 wrote to memory of 1692	1464	iexplore.exe	IEXPLORE.EXE
PID 1764 wrote to memory of 1680	1764	SecuriteInfo.com.FileCryptor.PSW.3725.32198.exe	cmd.exe
PID 1764 wrote to memory of 1680	1764	SecuriteInfo.com.FileCryptor.PSW.3725.32198.exe	cmd.exe
PID 1764 wrote to memory of 1680	1764	SecuriteInfo.com.FileCryptor.PSW.3725.32198.exe	cmd.exe
PID 1764 wrote to memory of 1680	1764	SecuriteInfo.com.FileCryptor.PSW.3725.32198.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileCryptor.PSW.3725.32198.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileCryptor.PSW.3725.32198.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:1764

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:1464

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1464 CREDAT:275457 /prefetch:2
3⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1692

C:\Windows\SysWOW64\cmd.exe
cmd.exe /C del /Q /F "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.FileCryptor.PSW.3725.32198.exe"
2⤵
- Deletes itself
PID:1680

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Modifies service
- Suspicious use of AdjustPrivilegeToken
PID:1064

C:\Windows\system32\taskeng.exe
taskeng.exe {A65A6026-F793-4897-A900-B81859CD96C9} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:816

C:\Windows\system32\vssadmin.exe
C:\Windows\system32\vssadmin.exe Delete Shadows /Quiet /All
2⤵
- Interacts with shadow copies
PID:1296

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- Suspicious use of FindShellTrayWindow
PID:1532

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\NDBWA4DC.txt
MD5
dd09a69d7c22f198973435cc215c9289

SHA1
78b85c888214bbf53977b73e6915502a0c448210

SHA256
c3f89d2ceada2b217978c888d8196fbabe70cdfab2b20153e1ff1e521fffdd35

SHA512
cbdd8a1c58d6df2d547330000d5860efc4e437e7d378c62d0dac6bb6157334d51a4f7d5bd1891d69091764d8ba970e360c60f10ed63b59187fc0bee3375f8a15

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/1296-0-0x0000000000000000-mapping.dmp

Download
memory/1384-2-0x000007FEF7F80000-0x000007FEF81FA000-memory.dmp

Filesize
2.5MB

Download
memory/1464-1-0x0000000000000000-mapping.dmp

Download
memory/1680-4-0x0000000000000000-mapping.dmp

Download
memory/1692-3-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads