locky | 803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726

General

Target

803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726.exe
Size

206KB
MD5

542751e8e64d10ff82ff68c514486246
SHA1

e376fa75c0597a0b877fcd547355fd0e2ecffb19
SHA256

803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726
SHA512

2b9a16d54459c8c673791ba9d8f83fd1ea23a70deda0179dcccc5da688cdc5a69a25d9f8fede72b7f16f945970e0e739a69fbf1a7f09211fb1701200d226f063

Score

10^/10

locky locky_osiris persistence 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 extensions of user files 1 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

Processes:

803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726.exe

description	ioc	process
File opened for modification	\??\c:\Users\Admin\Pictures\EditStart.tiff	803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

msedge.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows\CurrentVersion\Run	msedge.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

Processes:

803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\DesktopOSIRIS.bmp"	803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726.exe

Drops file in Program Files directory 2 IoCs

Processes:

setup.exe

description	ioc	process
File created	C:\Program Files (x86)\Microsoft\Edge\Application\SetupMetrics\a29847bb-03a4-4358-bf08-3a31b30ada28.tmp	setup.exe
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\SetupMetrics\20220520233456.pma	setup.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

msedge.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	msedge.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	msedge.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	msedge.exe

Modifies Control Panel 2 IoCs

evasion

Processes:

803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\Desktop\WallpaperStyle = "0"	803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\Desktop\TileWallpaper = "0"	803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726.exe

Modifies registry class 1 IoCs

Processes:

msedge.exe

description ioc process

Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ msedge.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

msedge.exemsedge.exeidentity_helper.exe

pid process

3868 msedge.exe
3868 msedge.exe
632 msedge.exe
632 msedge.exe
2932 identity_helper.exe
2932 identity_helper.exe
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs

Processes:

msedge.exe

pid process

632 msedge.exe
632 msedge.exe
632 msedge.exe
632 msedge.exe
Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

msedge.exe

pid process

632 msedge.exe
632 msedge.exe
632 msedge.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	msedge.exe

pid	process
3868	msedge.exe
3868	msedge.exe
632	msedge.exe
632	msedge.exe
2932	identity_helper.exe
2932	identity_helper.exe

pid	process
632	msedge.exe
632	msedge.exe
632	msedge.exe
632	msedge.exe

pid	process
632	msedge.exe
632	msedge.exe
632	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726.exemsedge.exe

description	pid	process	target process
PID 3040 wrote to memory of 632	3040	803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726.exe	msedge.exe
PID 3040 wrote to memory of 632	3040	803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726.exe	msedge.exe
PID 3040 wrote to memory of 816	3040	803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726.exe	cmd.exe
PID 3040 wrote to memory of 816	3040	803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726.exe	cmd.exe
PID 3040 wrote to memory of 816	3040	803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726.exe	cmd.exe
PID 632 wrote to memory of 5112	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 5112	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3560	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3868	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 3868	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 4532	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 4532	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 4532	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 4532	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 4532	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 4532	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 4532	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 4532	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 4532	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 4532	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 4532	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 4532	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 4532	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 4532	632	msedge.exe	msedge.exe
PID 632 wrote to memory of 4532	632	msedge.exe	msedge.exe

C:\Users\Admin\AppData\Local\Temp\803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726.exe
"C:\Users\Admin\AppData\Local\Temp\803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726.exe"
1⤵
- Modifies extensions of user files
- Sets desktop wallpaper using registry
- Modifies Control Panel
- Suspicious use of WriteProcessMemory
PID:3040

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument C:\Users\Admin\DesktopOSIRIS.htm
2⤵
- Adds Run key to start application
- Enumerates system info in registry
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:632

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0xf8,0xfc,0x100,0xd4,0x104,0x7ff8a1b446f8,0x7ff8a1b44708,0x7ff8a1b44718
3⤵
PID:5112

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2112,2169445596990469038,15483826204282862591,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2104 /prefetch:2
3⤵
PID:3560

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=2112,2169445596990469038,15483826204282862591,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2248 /prefetch:3
3⤵
- Suspicious behavior: EnumeratesProcesses
PID:3868

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=2112,2169445596990469038,15483826204282862591,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2664 /prefetch:8
3⤵
PID:4532

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2112,2169445596990469038,15483826204282862591,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3824 /prefetch:1
3⤵
PID:384

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2112,2169445596990469038,15483826204282862591,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3836 /prefetch:1
3⤵
PID:5016

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=2112,2169445596990469038,15483826204282862591,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=4592 /prefetch:8
3⤵
PID:892

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --field-trial-handle=2112,2169445596990469038,15483826204282862591,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5448 /prefetch:8
3⤵
PID:3576

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2112,2169445596990469038,15483826204282862591,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5844 /prefetch:1
3⤵
PID:3112

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2112,2169445596990469038,15483826204282862591,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5864 /prefetch:1
3⤵
PID:2736

C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2112,2169445596990469038,15483826204282862591,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=6232 /prefetch:8
3⤵
PID:4260

C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --configure-user-settings --verbose-logging --system-level --msedge --force-configure-user-settings
3⤵
- Drops file in Program Files directory
PID:4664

C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --type=crashpad-handler /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Windows\TEMP\MsEdgeCrashpad --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\Installer\setup.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0x220,0x224,0x228,0x1fc,0x22c,0x7ff6b4ff5460,0x7ff6b4ff5470,0x7ff6b4ff5480
4⤵
PID:4928

C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2112,2169445596990469038,15483826204282862591,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=6232 /prefetch:8
3⤵
- Suspicious behavior: EnumeratesProcesses
PID:2932

C:\Windows\SysWOW64\cmd.exe
cmd.exe /C del /Q /F "C:\Users\Admin\AppData\Local\Temp\803a9fdb26c22ecd599f25f30e79c4914c75e45c2613718c4a25b16112222726.exe"
2⤵
PID:816

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:2640

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k appmodel -p -s camsvc
1⤵
PID:3720

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

2

T1082

Query Registry

1

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Defacement

1

T1491

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Downloads

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

MD5
3dc6149c03a04686702cf207aebd03c2

SHA1
3e4ed74edbdaaff559e0d4e5bab26077bd11558c

SHA256
cc7eaea74699b21af46a400905b19bc23807e3f0e9e86e176bb41b0eeb513cf4

SHA512
fe0ee172807c7a4a1c081c92a1c59035c1566c0e2a8a6b0d9dde6d7128b587835e69468ad09d3a52aab7f67eef77239d96741d2cb444c3e810629ef6461f824a

Download Submit
\??\pipe\LOCAL\crashpad_632_MISUHERQHVLLFLDS
MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
memory/384-143-0x0000000000000000-mapping.dmp

Download
memory/632-133-0x0000000000000000-mapping.dmp

Download
memory/816-134-0x0000000000000000-mapping.dmp

Download
memory/892-148-0x0000000000000000-mapping.dmp

Download
memory/2736-154-0x0000000000000000-mapping.dmp

Download
memory/2932-157-0x0000000000000000-mapping.dmp

Download
memory/3040-131-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/3040-132-0x0000000000A40000-0x0000000000A67000-memory.dmp

Filesize
156KB

Download
memory/3040-130-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download
memory/3112-152-0x0000000000000000-mapping.dmp

Download
memory/3560-137-0x0000000000000000-mapping.dmp

Download
memory/3576-150-0x0000000000000000-mapping.dmp

Download
memory/3868-138-0x0000000000000000-mapping.dmp

Download
memory/4532-141-0x0000000000000000-mapping.dmp

Download
memory/4664-155-0x0000000000000000-mapping.dmp

Download
memory/4928-156-0x0000000000000000-mapping.dmp

Download
memory/5016-145-0x0000000000000000-mapping.dmp

Download
memory/5112-135-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads