locky | 803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726

General

Target

803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726.exe
Size

206KB
MD5

542751e8e64d10ff82ff68c514486246
SHA1

e376fa75c0597a0b877fcd547355fd0e2ecffb19
SHA256

803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726
SHA512

2b9a16d54459c8c673791ba9d8f83fd1ea23a70deda0179dcccc5da688cdc5a69a25d9f8fede72b7f16f945970e0e739a69fbf1a7f09211fb1701200d226f063

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

Deletes itself 1 IoCs

pid	Process
812	cmd.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

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"	803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726.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

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Control Panel\Desktop\WallpaperStyle = "0"	803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Control Panel\Desktop\TileWallpaper = "0"	803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726.exe

Modifies Internet Explorer settings 1 TTPs 25 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\Main	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 (int)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	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\BrowserEmulation\LowMic	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\IETld\LowMic	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\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
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\Recovery\AdminActive	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	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
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\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{73917511-D895-11EC-B1DF-6AE7990DC39D} = "0"	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\Main\WindowsSearch	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	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\FullScreen = "no"	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

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1944	iexplore.exe
1328	DllHost.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
1944	iexplore.exe
1944	iexplore.exe
1508	IEXPLORE.EXE
1508	IEXPLORE.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1964 wrote to memory of 1944	1964	803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726.exe	31
PID 1964 wrote to memory of 1944	1964	803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726.exe	31
PID 1964 wrote to memory of 1944	1964	803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726.exe	31
PID 1964 wrote to memory of 1944	1964	803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726.exe	31
PID 1964 wrote to memory of 812	1964	803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726.exe	33
PID 1964 wrote to memory of 812	1964	803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726.exe	33
PID 1964 wrote to memory of 812	1964	803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726.exe	33
PID 1964 wrote to memory of 812	1964	803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726.exe	33
PID 1944 wrote to memory of 1508	1944	iexplore.exe	35
PID 1944 wrote to memory of 1508	1944	iexplore.exe	35
PID 1944 wrote to memory of 1508	1944	iexplore.exe	35
PID 1944 wrote to memory of 1508	1944	iexplore.exe	35

C:\Users\Admin\AppData\Local\Temp\803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726.exe
"C:\Users\Admin\AppData\Local\Temp\803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726.exe"
1⤵
- Sets desktop wallpaper using registry
- Modifies Control Panel
- Suspicious use of WriteProcessMemory
PID:1964
- 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:1944
- - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1944 CREDAT:275457 /prefetch:2
    3⤵
    - Modifies Internet Explorer settings
    - Suspicious use of SetWindowsHookEx
    PID:1508
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /C del /Q /F "C:\Users\Admin\AppData\Local\Temp\803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726.exe"
  2⤵
  - Deletes itself
  PID:812

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- Suspicious use of FindShellTrayWindow
PID:1328

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\DesktopOSIRIS.bmp

Filesize
3.1MB

MD5
1823e189199589719a650babcbf8020f

SHA1
274a20e02baf7368b8c2ec253e9d23bb7088ff9b

SHA256
ef5cc5e19c3cb4d4f4f9ae5b1d103b295b8203e708a08647422fe810b7d8c86b

SHA512
862f2afac391a00a22306e7949dd56ccf20629c0ce771843e55ae217da0987695e701f50f03fda060f4624f3cc84cd7af16f1813accccb5104a6bfe9eb114e2e

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

Filesize
8KB

MD5
de0fb124b35c9bf8c1f627e9fefaaf8f

SHA1
537a8158fa7a7bca830a33cd7dd50fa6e445ee0d

SHA256
315bf1bd7605af27f6c008ea7faf8857bff503ccc076e6c60e8cfb445743e2b6

SHA512
569d2971c47ca7bbbed4c62e7963a25a8b0142ce0b3acb45223d6d2ebec0774ea9f0a3827e5f578411a73862bcd1668fdb367053259e0000c9707ed658e59a77

Download Submit
memory/1964-54-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/1964-55-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/1964-56-0x0000000075FC1000-0x0000000075FC3000-memory.dmp

Filesize
8KB

Download
memory/1964-57-0x0000000000440000-0x0000000000467000-memory.dmp

Filesize
156KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads