locky | 476432754769b1d86ccaac3b99360197836eb6907baa07e91cba25107aeed2bd

General

Target

476432754769b1d86ccaac3b99360197836eb6907baa07e91cba25107aeed2bd.exe
Size

353KB
MD5

d625e871a586f4f86a06ee3794331a6a
SHA1

074032cd587b01c8c6d78a82da414487d752db92
SHA256

476432754769b1d86ccaac3b99360197836eb6907baa07e91cba25107aeed2bd
SHA512

cf169e0122b7f676fbabdffc10faff0e634c8db899f32003bbcbf5184bb4e06600d96a71643697046d589fc23037cb6779428d20b0b3a19ac50b7f4d0f0db320

Score

10^/10

locky locky_osiris ransomware

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

Modifies Internet Explorer settings 1 TTPs 27 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "358828829"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	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\DomainSuggestion\FileNames	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\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	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\Recovery\PendingRecovery	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\Zoom	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{E5A31EA1-CF40-11EC-AD78-F6DB027C05B2} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\IntelliForms	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\Toolbar	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\DomainSuggestion\FileNames\	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 (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\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	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\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
940	iexplore.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
940	iexplore.exe
940	iexplore.exe
560	IEXPLORE.EXE
560	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 940 wrote to memory of 560	940	iexplore.exe	29
PID 940 wrote to memory of 560	940	iexplore.exe	29
PID 940 wrote to memory of 560	940	iexplore.exe	29
PID 940 wrote to memory of 560	940	iexplore.exe	29

C:\Users\Admin\AppData\Local\Temp\476432754769b1d86ccaac3b99360197836eb6907baa07e91cba25107aeed2bd.exe
"C:\Users\Admin\AppData\Local\Temp\476432754769b1d86ccaac3b99360197836eb6907baa07e91cba25107aeed2bd.exe"
1⤵
PID:1976

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
1⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:940
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:940 CREDAT:275457 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  - Suspicious use of SetWindowsHookEx
  PID:560

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\QJGNW2ZC.txt

Filesize
608B

MD5
d89256a924c0162ac7f127fd68dceb07

SHA1
842832ec287c3df520ce4f8afc4ca3c9bf99af73

SHA256
e281431380310bb25a926803d1c354d3c086a484ce291214f117d44f0d5ab1db

SHA512
0895a7e4c55aaee0048ea6fa8c705f139c178507c08c32384adb582e5a50e3f48f62c433fa4259c349a721feed6d1b6ad8b1bad91a7c5e542e905ab3f8d88782

Download Submit
memory/1976-54-0x0000000075221000-0x0000000075223000-memory.dmp

Filesize
8KB

Download
memory/1976-55-0x0000000002950000-0x0000000002974000-memory.dmp

Filesize
144KB

Download
memory/1976-56-0x0000000000400000-0x0000000000470000-memory.dmp

Filesize
448KB

Download
memory/1976-58-0x00000000059E0000-0x0000000005A07000-memory.dmp

Filesize
156KB

Download

Analysis

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