locky | f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f

Analysis

max time kernel
129s
max time network
132s
platform
windows7_x64
resource
win7-20220414-en
submitted
04-07-2022 12:38

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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

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-1-5-21-1083475884-596052423-1669053738-1000\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-1-5-21-1083475884-596052423-1669053738-1000\Control Panel\Desktop\WallpaperStyle = "0"	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\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-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Toolbar	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 (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\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{215595D1-FBA7-11EC-8312-7EDEB47CBF10} = "0"	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
Set value (data)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\PageSetup	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
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\Main	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\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb01000000358f16e0538341458b70f68dad1eafd40000000002000000000010660000000100002000000055a2c258ef239004b24f8a7d55452713aeb3e1c498f32395edf9862d132ece21000000000e80000000020000200000005e6b4fb455d542bccb69f626723d1d479973fa9163171fea06e3e4fea991356320000000eae7e5e62ca2ae5bd04b54f11be2b9da83742035689dc1ef6b302b7a20e9f1ce40000000017f6039462f2db1d160e2203929586b913decde8bbe82377a4d8f5f5ffb766e951539092725e5dc1094be4299fbea8a5442e8ded31ff067ebf5eba25c134248	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 509802f7b38fd801	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\Main\WindowsSearch	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	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\Toolbar\WebBrowser	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\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "363710559"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\Main	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\Main\WindowsSearch	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

iexplore.exeDllHost.exe

pid	Process
1640	iexplore.exe
868	DllHost.exe

Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exeiexplore.exeIEXPLORE.EXE

pid	Process
1516	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe
1640	iexplore.exe
1640	iexplore.exe
1776	IEXPLORE.EXE
1776	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exeiexplore.exe

description	pid	Process	procid_target
PID 1516 wrote to memory of 1640	1516	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe	29
PID 1516 wrote to memory of 1640	1516	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe	29
PID 1516 wrote to memory of 1640	1516	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe	29
PID 1516 wrote to memory of 1640	1516	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe	29
PID 1640 wrote to memory of 1776	1640	iexplore.exe	31
PID 1640 wrote to memory of 1776	1640	iexplore.exe	31
PID 1640 wrote to memory of 1776	1640	iexplore.exe	31
PID 1640 wrote to memory of 1776	1640	iexplore.exe	31
PID 1516 wrote to memory of 1824	1516	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe	32
PID 1516 wrote to memory of 1824	1516	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe	32
PID 1516 wrote to memory of 1824	1516	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe	32
PID 1516 wrote to memory of 1824	1516	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe	32

C:\Users\Admin\AppData\Local\Temp\f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe
"C:\Users\Admin\AppData\Local\Temp\f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe"
1⤵
- Sets desktop wallpaper using registry
- Modifies Control Panel
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1516
- 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:1640
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1640 CREDAT:275457 /prefetch:2
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of SetWindowsHookEx
    PID:1776
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /C del /Q /F "C:\Users\Admin\AppData\Local\Temp\f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe"
  2⤵
  PID:1824

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- Suspicious use of FindShellTrayWindow
PID:868

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

T1491

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\X0W95K40.txt

Filesize
599B

MD5
081f80bc63c70d14336120589f548f43

SHA1
dc80578d01a4800a9096f63ce82d7c12f61ce661

SHA256
8c57b99002d956cc2fa985d7bef014fc57b70fee9d57da3dbadec53a026d92a8

SHA512
49bd56a29aaf5c5fdcb33a1ac5a62886434dd61df0056cafa010a0447032f97c7dc449fd2932645fbbd02eab8f4cc1d3e8fff211e352cb3e4bc80b1b09781ad9

Download Submit
C:\Users\Admin\DesktopOSIRIS.bmp

Filesize
3.7MB

MD5
2f48f18d0477a8631b5c9f5a9d63d5ad

SHA1
d9b7c383eac8ae8b3487a5489a973db4041bfc26

SHA256
b7cfaed395c91df6b7115ba92b9f2175e845021df83a8ee9acb806bcbd6ee0d0

SHA512
28b67a669971df8e256a94eecfbbc99ef839a265cefe78555d18203059e96c07de3b04160c33c350d4a4fbbaa3c5d54d36db8277271487397f5035a3721cb7b5

Download Submit
C:\Users\Admin\DesktopOSIRIS.htm

Filesize
8KB

MD5
e5ca32e37ff4840d596d2c10f98da870

SHA1
d304252322ae47c313c441c1666f5ab3506b7883

SHA256
c5ae6f51fe9b2601939780a556ed4e6ccb5e108a0828b1ef4cc97362e4020f27

SHA512
2d3fb0aaca6902b57e591540c0586377e05a7cc366ebae5ab65116760daf68e6ab8a3f0bac673ad341f1c543cf03c4d9b13e50d897794de27f057e68e2016e31

Download Submit
memory/1516-54-0x00000000755A1000-0x00000000755A3000-memory.dmp

Filesize
8KB

Download
memory/1516-55-0x00000000027B0000-0x00000000027D7000-memory.dmp

Filesize
156KB

Download
memory/1516-56-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download
memory/1516-58-0x0000000002C90000-0x00000000038DA000-memory.dmp

Filesize
12.3MB

Download
memory/1516-62-0x00000000027B0000-0x00000000027D7000-memory.dmp

Filesize
156KB

Download
memory/1824-60-0x0000000000000000-mapping.dmp

Download