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\TestHide.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-1-5-21-790309383-526510583-3802439154-1000\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-1-5-21-790309383-526510583-3802439154-1000\Control Panel\Desktop\WallpaperStyle = "0"	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\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
Set value (str)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000962422cf799f2f46a7e75b376cef3c3c0000000002000000000010660000000100002000000082cee55b4c95be321ee6fa1fde5e52d9d81b4495b2f75964166aab9eff95f0e6000000000e80000000020000200000002baf6d24adc032f363edc856f051c3fbbcedadbaf8c89677139a06fe212fdaed200000008f55399245020573ea6ef8f6b0a4b8c6d1852e9b6cea3d060baa0a5e787e8944400000002776beccecb57cf02451faa11ed9ada1431f96daae53a942cb68dff779d863614123741b9f31ca6c915ceb74808bc557f7a4207c275192296472d98f393a0668	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 90ab934bea8ed801	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (data)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "363623942"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{74D50A31-FADD-11EC-BFD8-4E28EF19992D} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

iexplore.exeDllHost.exe

pid process

1628 iexplore.exe
888 DllHost.exe
Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exeiexplore.exeIEXPLORE.EXE

pid process

2040 f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe
1628 iexplore.exe
1628 iexplore.exe
416 IEXPLORE.EXE
416 IEXPLORE.EXE

pid	process
1628	iexplore.exe
888	DllHost.exe

pid	process
2040	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe
1628	iexplore.exe
1628	iexplore.exe
416	IEXPLORE.EXE
416	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exeiexplore.exe

description	pid	process	target process
PID 2040 wrote to memory of 1628	2040	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe	iexplore.exe
PID 2040 wrote to memory of 1628	2040	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe	iexplore.exe
PID 2040 wrote to memory of 1628	2040	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe	iexplore.exe
PID 2040 wrote to memory of 1628	2040	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe	iexplore.exe
PID 2040 wrote to memory of 1100	2040	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe	cmd.exe
PID 2040 wrote to memory of 1100	2040	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe	cmd.exe
PID 2040 wrote to memory of 1100	2040	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe	cmd.exe
PID 2040 wrote to memory of 1100	2040	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe	cmd.exe
PID 1628 wrote to memory of 416	1628	iexplore.exe	IEXPLORE.EXE
PID 1628 wrote to memory of 416	1628	iexplore.exe	IEXPLORE.EXE
PID 1628 wrote to memory of 416	1628	iexplore.exe	IEXPLORE.EXE
PID 1628 wrote to memory of 416	1628	iexplore.exe	IEXPLORE.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:2040

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:1628

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1628 CREDAT:275457 /prefetch:2
3⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:416

C:\Windows\SysWOW64\cmd.exe
cmd.exe /C del /Q /F "C:\Users\Admin\AppData\Local\Temp\f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe"
2⤵
PID:1100

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- Suspicious use of FindShellTrayWindow
PID:888

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\9TM1M5EN.txt
Filesize
608B

MD5
2c12d2ea579582ad0daef14d72510600

SHA1
3664eced31826776d7a6e9d17567befb1a4499cf

SHA256
df75214311ee23f983e82a1ec52878d25c9939be794e0c6a8b88c23cd95f1999

SHA512
4f8bcf0fc8db89d31b59954d41db57d00acb0552b3bf358dffdfda73931e84bb237f37792e427e5642a6665b2c2cc4236f63747729607323dd33e826bf863c08

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

MD5
44e3af2a46282c92f829dd83b0d87a5d

SHA1
edd0a9f1b53a6df16a9585a058a8e306f1fe7ece

SHA256
171fea0f94fdb721b90163c0389b2e82c2227bf8e07e5025f1709e54baac33fb

SHA512
86c0016464814839bad1cd834c2f12beaedb4990f9e4347836ace97838b2abcba5d14fc9287766526fed9748d1603866ff4567f55760fae5001c964efd80263a

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

MD5
6da3683beec8712fe17caec6133f7e74

SHA1
8c2037563e58af038318fd965b6e639910d97dac

SHA256
05c4cd37c528e452407c9c06701b0bb4ca42751a0418399f051e9c006acbb448

SHA512
3dfa31b7939f85d2e409b4911487f7fd04ce2ca6ef492c5e5512caddcd66c1d8b807111e9c7514e391b9c6b2fe9d87c5d7a5d2c8fc1ffd98ba110721fd27299e

Download Submit
memory/1100-62-0x0000000000000000-mapping.dmp

Download
memory/2040-54-0x0000000076261000-0x0000000076263000-memory.dmp

Filesize
8KB

Download
memory/2040-55-0x0000000002460000-0x0000000002487000-memory.dmp

Filesize
156KB

Download
memory/2040-56-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/2040-58-0x0000000002C50000-0x000000000389A000-memory.dmp

Filesize
12.3MB

Download
memory/2040-59-0x0000000002460000-0x0000000002487000-memory.dmp

Filesize
156KB

Download
memory/2040-60-0x0000000002C50000-0x000000000389A000-memory.dmp

Filesize
12.3MB

Download
memory/2040-64-0x0000000002460000-0x0000000002487000-memory.dmp

Filesize
156KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads