locky | 21a0201874af80436dc0a36e5cbaf7da9b75217b3e39b712f3850729cf47deb6

Analysis

max time kernel
157s
max time network
162s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
08/07/2022, 11:39

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

21a0201874af80436dc0a36e5cbaf7da9b75217b3e39b712f3850729cf47deb6.exe
Size

372KB
MD5

e3b3e285390c0e2f7d04bd040bec790d
SHA1

dbee71535e9f1fb23b3f01e25989d22d51237e68
SHA256

21a0201874af80436dc0a36e5cbaf7da9b75217b3e39b712f3850729cf47deb6
SHA512

6156a6b0ff4f41c823cba68a4596676e357ceb5b8c0848c2828a72321dbc2a731d9ae8f1a417fe27aef7de0080001ad3f77b3809b64a93c610ae99f95b35f5be

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 2 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File opened for modification	\??\c:\Users\Admin\Pictures\OptimizeExport.tiff	21a0201874af80436dc0a36e5cbaf7da9b75217b3e39b712f3850729cf47deb6.exe
File opened for modification	\??\c:\Users\Admin\Pictures\SkipSubmit.tiff	21a0201874af80436dc0a36e5cbaf7da9b75217b3e39b712f3850729cf47deb6.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Software\Microsoft\Windows\CurrentVersion\Run	msedge.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{1566FD17-45F7-4FBA-922B-8EDAC0925477}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{8D0F633B-BD43-4A30-A6F9-DD408A4C4227}.catalogItem	svchost.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-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\DesktopOSIRIS.bmp"	21a0201874af80436dc0a36e5cbaf7da9b75217b3e39b712f3850729cf47deb6.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.exe

Enumerates system info in registry 2 TTPs 5 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	svchost.exe
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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	svchost.exe

Modifies Control Panel 2 IoCs

evasion

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\Desktop\WallpaperStyle = "0"	21a0201874af80436dc0a36e5cbaf7da9b75217b3e39b712f3850729cf47deb6.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\Desktop\TileWallpaper = "0"	21a0201874af80436dc0a36e5cbaf7da9b75217b3e39b712f3850729cf47deb6.exe

Modifies registry class 1 IoCs

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

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3044	msedge.exe
3044	msedge.exe
4156	msedge.exe
4156	msedge.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4312	21a0201874af80436dc0a36e5cbaf7da9b75217b3e39b712f3850729cf47deb6.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs

pid	Process
4156	msedge.exe
4156	msedge.exe
4156	msedge.exe
4156	msedge.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4156	msedge.exe
4156	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4312 wrote to memory of 4156	4312	21a0201874af80436dc0a36e5cbaf7da9b75217b3e39b712f3850729cf47deb6.exe	98
PID 4312 wrote to memory of 4156	4312	21a0201874af80436dc0a36e5cbaf7da9b75217b3e39b712f3850729cf47deb6.exe	98
PID 4312 wrote to memory of 4240	4312	21a0201874af80436dc0a36e5cbaf7da9b75217b3e39b712f3850729cf47deb6.exe	99
PID 4312 wrote to memory of 4240	4312	21a0201874af80436dc0a36e5cbaf7da9b75217b3e39b712f3850729cf47deb6.exe	99
PID 4312 wrote to memory of 4240	4312	21a0201874af80436dc0a36e5cbaf7da9b75217b3e39b712f3850729cf47deb6.exe	99
PID 4156 wrote to memory of 1616	4156	msedge.exe	101
PID 4156 wrote to memory of 1616	4156	msedge.exe	101
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 2824	4156	msedge.exe	105
PID 4156 wrote to memory of 3044	4156	msedge.exe	106
PID 4156 wrote to memory of 3044	4156	msedge.exe	106
PID 4156 wrote to memory of 4352	4156	msedge.exe	107
PID 4156 wrote to memory of 4352	4156	msedge.exe	107
PID 4156 wrote to memory of 4352	4156	msedge.exe	107
PID 4156 wrote to memory of 4352	4156	msedge.exe	107
PID 4156 wrote to memory of 4352	4156	msedge.exe	107
PID 4156 wrote to memory of 4352	4156	msedge.exe	107
PID 4156 wrote to memory of 4352	4156	msedge.exe	107
PID 4156 wrote to memory of 4352	4156	msedge.exe	107
PID 4156 wrote to memory of 4352	4156	msedge.exe	107
PID 4156 wrote to memory of 4352	4156	msedge.exe	107
PID 4156 wrote to memory of 4352	4156	msedge.exe	107
PID 4156 wrote to memory of 4352	4156	msedge.exe	107
PID 4156 wrote to memory of 4352	4156	msedge.exe	107
PID 4156 wrote to memory of 4352	4156	msedge.exe	107
PID 4156 wrote to memory of 4352	4156	msedge.exe	107

C:\Users\Admin\AppData\Local\Temp\21a0201874af80436dc0a36e5cbaf7da9b75217b3e39b712f3850729cf47deb6.exe
"C:\Users\Admin\AppData\Local\Temp\21a0201874af80436dc0a36e5cbaf7da9b75217b3e39b712f3850729cf47deb6.exe"
1⤵
- Modifies extensions of user files
- Sets desktop wallpaper using registry
- Modifies Control Panel
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:4312
- 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:4156
- - 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=0xfc,0x100,0x104,0xd8,0x108,0x7ffea40d46f8,0x7ffea40d4708,0x7ffea40d4718
    3⤵
    PID:1616
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2568,9278276091770081224,16887075487355552441,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2632 /prefetch:2
    3⤵
    PID:2824
- - 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=2568,9278276091770081224,16887075487355552441,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2856 /prefetch:3
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:3044
- - 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=2568,9278276091770081224,16887075487355552441,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2788 /prefetch:8
    3⤵
    PID:4352
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2568,9278276091770081224,16887075487355552441,131072 --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=3716 /prefetch:1
    3⤵
    PID:3176
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2568,9278276091770081224,16887075487355552441,131072 --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=3736 /prefetch:1
    3⤵
    PID:3188
- - 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=2568,9278276091770081224,16887075487355552441,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=4308 /prefetch:8
    3⤵
    PID:4264
- - 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=2568,9278276091770081224,16887075487355552441,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5428 /prefetch:8
    3⤵
    PID:4204
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2568,9278276091770081224,16887075487355552441,131072 --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=4412 /prefetch:1
    3⤵
    PID:3748
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2568,9278276091770081224,16887075487355552441,131072 --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=5552 /prefetch:1
    3⤵
    PID:1020
- - 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=2568,9278276091770081224,16887075487355552441,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=6096 /prefetch:8
    3⤵
    PID:4452
- - 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⤵
    PID:4700
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /C del /Q /F "C:\Users\Admin\AppData\Local\Temp\21a0201874af80436dc0a36e5cbaf7da9b75217b3e39b712f3850729cf47deb6.exe"
  2⤵
  PID:4240

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
PID:1468

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4708

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

T1491

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\DesktopOSIRIS.htm

Filesize
8KB

MD5
77c06bb2de48ebe30d909d5ca8c77ecf

SHA1
ef8195a7e6b722fbeb15a6782b4469af954a3e9a

SHA256
21013daa6b61dcbc49b39434a2a541a17a715742a2700ed05d8dc8d4cd433d97

SHA512
c5361571a22e03bd045c79ced5a4f301e7f267caaab9104e88afb4fcd521bd317f1053762b65201e0ea7e060a8987c52c69b25c70a6f311a3118a675a9498bc1

Download Submit
memory/4312-132-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/4312-134-0x0000000003AB0000-0x0000000003AD7000-memory.dmp

Filesize
156KB

Download
memory/4312-130-0x0000000002FD0000-0x0000000002FF7000-memory.dmp

Filesize
156KB

Download
memory/4312-135-0x0000000003AB0000-0x0000000003AD7000-memory.dmp

Filesize
156KB

Download
memory/4312-138-0x0000000003AB0000-0x0000000003AD7000-memory.dmp

Filesize
156KB

Download
memory/4312-131-0x0000000002FD0000-0x0000000002FF7000-memory.dmp

Filesize
156KB

Download