locky | f2c9ae3735430b930a81148c0bb470fcb733e456a2a942f859a1b59c4a7b2150

General

Target

f2c9ae3735430b930a81148c0bb470fcb733e456a2a942f859a1b59c4a7b2150.exe
Size

135KB
MD5

511aa2f2fe6196e032ec7fef83bb8d95
SHA1

ce874f517d335a1e1ab0df99111df1d3adbc0d21
SHA256

f2c9ae3735430b930a81148c0bb470fcb733e456a2a942f859a1b59c4a7b2150
SHA512

78a4771ab5e531420a45338ae27a5a4dad11b50385964a739e7ecec2c55d3ee47cde148dfc1e82ce7e8b8eb8a04a7f9b784cdd640e490a84bc8ce621d2f8d1c0

Score

10^/10

locky ransomware

Malware Config

Signatures

Locky
Ransomware strain released in 2016, with advanced features like anti-analysis.
ransomware locky

Modifies extensions of user files 1 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

f2c9ae3735430b930a81148c0bb470fcb733e456a2a942f859a1b59c4a7b2150.exe

description	ioc	process
File opened for modification	\??\c:\Users\Admin\Pictures\ResumeUnpublish.tiff	f2c9ae3735430b930a81148c0bb470fcb733e456a2a942f859a1b59c4a7b2150.exe

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

2004 cmd.exe

pid	process
2004	cmd.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

Processes:

f2c9ae3735430b930a81148c0bb470fcb733e456a2a942f859a1b59c4a7b2150.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\_HELP_instructions.bmp"	f2c9ae3735430b930a81148c0bb470fcb733e456a2a942f859a1b59c4a7b2150.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:

f2c9ae3735430b930a81148c0bb470fcb733e456a2a942f859a1b59c4a7b2150.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Control Panel\Desktop\WallpaperStyle = "0"	f2c9ae3735430b930a81148c0bb470fcb733e456a2a942f859a1b59c4a7b2150.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Control Panel\Desktop\TileWallpaper = "0"	f2c9ae3735430b930a81148c0bb470fcb733e456a2a942f859a1b59c4a7b2150.exe

Modifies Internet Explorer settings 1 TTPs 25 IoCs

adware spyware

Modify Registry

T1112

Processes:

iexplore.exeIEXPLORE.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{79E5FD21-F477-11EC-A237-C2F2D41BD72F} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

iexplore.exeDllHost.exe

pid process

1744 iexplore.exe
1548 DllHost.exe
Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

iexplore.exeIEXPLORE.EXE

pid process

1744 iexplore.exe
1744 iexplore.exe
2000 IEXPLORE.EXE
2000 IEXPLORE.EXE

pid	process
1744	iexplore.exe
1548	DllHost.exe

pid	process
1744	iexplore.exe
1744	iexplore.exe
2000	IEXPLORE.EXE
2000	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

f2c9ae3735430b930a81148c0bb470fcb733e456a2a942f859a1b59c4a7b2150.exeiexplore.exe

description	pid	process	target process
PID 1668 wrote to memory of 1744	1668	f2c9ae3735430b930a81148c0bb470fcb733e456a2a942f859a1b59c4a7b2150.exe	iexplore.exe
PID 1668 wrote to memory of 1744	1668	f2c9ae3735430b930a81148c0bb470fcb733e456a2a942f859a1b59c4a7b2150.exe	iexplore.exe
PID 1668 wrote to memory of 1744	1668	f2c9ae3735430b930a81148c0bb470fcb733e456a2a942f859a1b59c4a7b2150.exe	iexplore.exe
PID 1668 wrote to memory of 1744	1668	f2c9ae3735430b930a81148c0bb470fcb733e456a2a942f859a1b59c4a7b2150.exe	iexplore.exe
PID 1744 wrote to memory of 2000	1744	iexplore.exe	IEXPLORE.EXE
PID 1744 wrote to memory of 2000	1744	iexplore.exe	IEXPLORE.EXE
PID 1744 wrote to memory of 2000	1744	iexplore.exe	IEXPLORE.EXE
PID 1744 wrote to memory of 2000	1744	iexplore.exe	IEXPLORE.EXE
PID 1668 wrote to memory of 2004	1668	f2c9ae3735430b930a81148c0bb470fcb733e456a2a942f859a1b59c4a7b2150.exe	cmd.exe
PID 1668 wrote to memory of 2004	1668	f2c9ae3735430b930a81148c0bb470fcb733e456a2a942f859a1b59c4a7b2150.exe	cmd.exe
PID 1668 wrote to memory of 2004	1668	f2c9ae3735430b930a81148c0bb470fcb733e456a2a942f859a1b59c4a7b2150.exe	cmd.exe
PID 1668 wrote to memory of 2004	1668	f2c9ae3735430b930a81148c0bb470fcb733e456a2a942f859a1b59c4a7b2150.exe	cmd.exe

C:\Users\Admin\AppData\Local\Temp\f2c9ae3735430b930a81148c0bb470fcb733e456a2a942f859a1b59c4a7b2150.exe
"C:\Users\Admin\AppData\Local\Temp\f2c9ae3735430b930a81148c0bb470fcb733e456a2a942f859a1b59c4a7b2150.exe"
1⤵
- Modifies extensions of user files
- Sets desktop wallpaper using registry
- Modifies Control Panel
- Suspicious use of WriteProcessMemory
PID:1668

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\Desktop\_HELP_instructions.html
2⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1744

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1744 CREDAT:275457 /prefetch:2
3⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:2000

C:\Windows\SysWOW64\cmd.exe
cmd.exe /C del /Q /F "C:\Users\Admin\AppData\Local\Temp\f2c9ae3735430b930a81148c0bb470fcb733e456a2a942f859a1b59c4a7b2150.exe"
2⤵
- Deletes itself
PID:2004

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- Suspicious use of FindShellTrayWindow
PID:1548

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

1

T1491

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Downloads

C:\Users\Admin\Desktop\_HELP_instructions.bmp
Filesize
3.7MB

MD5
f7d1ddbde83eb7902b1be02498e36240

SHA1
534b55b7423252ea833918bb05a362aaebf2284a

SHA256
fb4f575802525ed5c5111d2fd2a12a46ffebd217230c196ed3477f78e5d96c15

SHA512
4d076b00986ff257534a27fc1b53a656638554ffb1fe287156a26b6b9570f9617bcdad997776ea4d505852a1bc8d94201175a0566d731205ef580bfba10f93c9

Download Submit
C:\Users\Admin\Desktop\_HELP_instructions.html
Filesize
9KB

MD5
87eb76726a4f42ce9e5c5b7c921e1d79

SHA1
82ceb41f892e4c75089c544379149e1be1e4cbf1

SHA256
b6888eb8107374091d66ff78a0cd9aad4767f079db1677677d904b48b8ab1860

SHA512
d72405e4a6d6cf946b5435709cd8c6f3a252faf94e756ad5dc4811e26c5ec3669d563eac9d1879b5f34f5bf04bdc0f17a401497fb5fa46264178625ccb4f4af0

Download Submit
memory/1668-54-0x00000000764C1000-0x00000000764C3000-memory.dmp

Filesize
8KB

Download
memory/1668-55-0x0000000000150000-0x0000000000176000-memory.dmp

Filesize
152KB

Download
memory/1668-56-0x0000000000150000-0x0000000000176000-memory.dmp

Filesize
152KB

Download
memory/1668-59-0x0000000000150000-0x0000000000176000-memory.dmp

Filesize
152KB

Download
memory/2004-58-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads