locky | f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f

General

Target

f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe
Size

329KB
MD5

b99c2748e46c0f8ed8da08fd933e0d9f
SHA1

b86e4150446e189259db650270edcc02296b4ca5
SHA256

f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f
SHA512

da239c429c2bc7e24f1a4ad1420d501a29e7abde4b89e474f290b4678d10a571c84b2cddb6994104ec2dc80d260122f3f8289e9113b2d0b54c483f249207167f

Score

10^/10

locky locky_osiris ransomware suricata

Malware Config

Signatures

Locky
Ransomware strain released in 2016, with advanced features like anti-analysis.
ransomware locky
Locky (Osiris variant)
Variant of the Locky ransomware seen in the wild since early 2017.
ransomware locky_osiris
suricata: ET MALWARE Locky CnC Checkin Dec 5 M1
suricata: ET MALWARE Locky CnC Checkin Dec 5 M1
suricata
suricata: ET MALWARE Locky CnC Checkin HTTP Pattern
suricata: ET MALWARE Locky CnC Checkin HTTP Pattern
suricata

Modifies extensions of user files 1 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe

description	ioc	process
File opened for modification	\??\c:\Users\Admin\Pictures\UnprotectSuspend.tiff	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

Processes:

f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\DesktopOSIRIS.bmp"	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe

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

System Information Discovery
T1082

Modifies Control Panel 2 IoCs

evasion

Processes:

f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Control Panel\Desktop\WallpaperStyle = "0"	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Control Panel\Desktop\TileWallpaper = "0"	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.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-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "362850686"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000850f07ecb424934d8f5a48a59e73cec0000000000200000000001066000000010000200000006d0baf90e0d279f505c0cbe6543f94d26cfd28e2221dd50364dbe1a439194119000000000e80000000020000200000006912f8fe991c1b9400612f35fc57817b75eab693f32daa0dc67b23929911f1702000000011008e317680c2379cdb374b3eaaf4a98f1b2f1a6b2a70b361631d3eb1157e2c400000004d7c980b164bc91ac4af12774045f6c69a2abf3029d2a91b9c7f7b44e7192487e451c65cfac7286972479e99f34da1d8c528a6d686ead2daca6c87189bfc18f3	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 60d6a9eae187d801	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{1472C421-F3D5-11EC-B0ED-C2F2D41BD72F} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

iexplore.exeDllHost.exe

pid process

848 iexplore.exe
840 DllHost.exe
Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exeiexplore.exeIEXPLORE.EXE

pid process

1448 f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe
848 iexplore.exe
848 iexplore.exe
1500 IEXPLORE.EXE
1500 IEXPLORE.EXE

pid	process
848	iexplore.exe
840	DllHost.exe

pid	process
1448	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe
848	iexplore.exe
848	iexplore.exe
1500	IEXPLORE.EXE
1500	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exeiexplore.exe

description	pid	process	target process
PID 1448 wrote to memory of 848	1448	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe	iexplore.exe
PID 1448 wrote to memory of 848	1448	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe	iexplore.exe
PID 1448 wrote to memory of 848	1448	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe	iexplore.exe
PID 1448 wrote to memory of 848	1448	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe	iexplore.exe
PID 848 wrote to memory of 1500	848	iexplore.exe	IEXPLORE.EXE
PID 848 wrote to memory of 1500	848	iexplore.exe	IEXPLORE.EXE
PID 848 wrote to memory of 1500	848	iexplore.exe	IEXPLORE.EXE
PID 848 wrote to memory of 1500	848	iexplore.exe	IEXPLORE.EXE
PID 1448 wrote to memory of 1772	1448	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe	cmd.exe
PID 1448 wrote to memory of 1772	1448	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe	cmd.exe
PID 1448 wrote to memory of 1772	1448	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe	cmd.exe
PID 1448 wrote to memory of 1772	1448	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe
"C:\Users\Admin\AppData\Local\Temp\f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe"
1⤵
- Modifies extensions of user files
- Sets desktop wallpaper using registry
- Modifies Control Panel
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1448

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\DesktopOSIRIS.htm
2⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:848

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:848 CREDAT:275457 /prefetch:2
3⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1500

C:\Windows\SysWOW64\cmd.exe
cmd.exe /C del /Q /F "C:\Users\Admin\AppData\Local\Temp\f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe"
2⤵
PID:1772

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- Suspicious use of FindShellTrayWindow
PID:840

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Defacement

1

T1491

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\FV4TV5E4.txt
Filesize
594B

MD5
6c635362df50be0f495f68ab4fef3476

SHA1
b5d306646bd8458f45fd73cde8a4df4661017943

SHA256
80f169a2402cdc3642f2e61e5db29f8a1e923de769d617cc3314dd9ccffd5710

SHA512
5177d0829ca3d74001be779e80b2aab5d9f544d5e7a07a8a04e15c6c04926940f09fe8d1165e28bcdf9a8ffdb26353b14b8be2e922e3387ab3540b94eba92c2c

Download Submit
C:\Users\Admin\DesktopOSIRIS.bmp
Filesize
3.7MB

MD5
ecdcf580e87eb00e52de300e99f1953b

SHA1
1ae3bfd0b7745437f9ffd46b4f980733795f6694

SHA256
35b521e0de6e60bd510fc5ddd1395dc6e82ae04f9f0af3476cedfd693c8282f7

SHA512
3551601e575e67ddc9b52ccd8ee6094239c90555d4ae9df370fced04b0baadef626fd5708c04710e4fddd6c8edd36d5e9621deb90380e3ef876f3649251aa63f

Download Submit
C:\Users\Admin\DesktopOSIRIS.htm
Filesize
8KB

MD5
ab9e27c42dfaac43de6506efc8ee73e3

SHA1
0fd2880b2caf1ce1e6bd078ed2e04c88d7b8d496

SHA256
dd92dca88386506d5676c6ae4ec48e016c61791c7a7ed04af10d43358757f3d0

SHA512
4cc14eaa9bccea99ba9fe9098e1db7acf54d7e7d5d0ddf5600d4296dbac2dcceb61b417080f30dd9e403fc596a1cef410ffddc2074ca81c0a0cfa80ce5c0abc1

Download Submit
memory/1448-54-0x0000000075C51000-0x0000000075C53000-memory.dmp

Filesize
8KB

Download
memory/1448-55-0x0000000002550000-0x0000000002577000-memory.dmp

Filesize
156KB

Download
memory/1448-56-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1448-58-0x0000000002CC0000-0x000000000390A000-memory.dmp

Filesize
12.3MB

Download
memory/1448-59-0x0000000002CC0000-0x000000000390A000-memory.dmp

Filesize
12.3MB

Download
memory/1448-63-0x0000000002550000-0x0000000002577000-memory.dmp

Filesize
156KB

Download
memory/1772-61-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads