locky | f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f

Analysis

max time kernel
147s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20220414-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 persistence 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

Modifies extensions of user files 1 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File opened for modification	\??\c:\Users\Admin\Pictures\PublishConvertFrom.tiff	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.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-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows\CurrentVersion\Run	msedge.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

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"	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft\Edge\Application\SetupMetrics\8e61d3d3-1779-416d-9e5c-1ee8d38305bb.tmp	setup.exe
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\SetupMetrics\20220704143951.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

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

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\Desktop\WallpaperStyle = "0"	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\Desktop\TileWallpaper = "0"	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.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 7 IoCs

pid	Process
1816	msedge.exe
1816	msedge.exe
2524	msedge.exe
2524	msedge.exe
2524	msedge.exe
5096	identity_helper.exe
5096	identity_helper.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs

pid	Process
2524	msedge.exe
2524	msedge.exe
2524	msedge.exe
2524	msedge.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2524	msedge.exe
2524	msedge.exe
2524	msedge.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4260	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4260 wrote to memory of 2524	4260	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe	90
PID 4260 wrote to memory of 2524	4260	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe	90
PID 4260 wrote to memory of 2620	4260	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe	91
PID 4260 wrote to memory of 2620	4260	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe	91
PID 4260 wrote to memory of 2620	4260	f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe	91
PID 2524 wrote to memory of 1104	2524	msedge.exe	93
PID 2524 wrote to memory of 1104	2524	msedge.exe	93
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 2800	2524	msedge.exe	96
PID 2524 wrote to memory of 1816	2524	msedge.exe	97
PID 2524 wrote to memory of 1816	2524	msedge.exe	97
PID 2524 wrote to memory of 4328	2524	msedge.exe	98
PID 2524 wrote to memory of 4328	2524	msedge.exe	98
PID 2524 wrote to memory of 4328	2524	msedge.exe	98
PID 2524 wrote to memory of 4328	2524	msedge.exe	98
PID 2524 wrote to memory of 4328	2524	msedge.exe	98
PID 2524 wrote to memory of 4328	2524	msedge.exe	98
PID 2524 wrote to memory of 4328	2524	msedge.exe	98
PID 2524 wrote to memory of 4328	2524	msedge.exe	98
PID 2524 wrote to memory of 4328	2524	msedge.exe	98
PID 2524 wrote to memory of 4328	2524	msedge.exe	98
PID 2524 wrote to memory of 4328	2524	msedge.exe	98
PID 2524 wrote to memory of 4328	2524	msedge.exe	98
PID 2524 wrote to memory of 4328	2524	msedge.exe	98
PID 2524 wrote to memory of 4328	2524	msedge.exe	98
PID 2524 wrote to memory of 4328	2524	msedge.exe	98

C:\Users\Admin\AppData\Local\Temp\f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe
"C:\Users\Admin\AppData\Local\Temp\f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe"
1⤵
- Modifies extensions of user files
- Sets desktop wallpaper using registry
- Modifies Control Panel
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4260
- 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:2524
- - 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,0x100,0x104,0xf8,0x108,0x7ffddaa146f8,0x7ffddaa14708,0x7ffddaa14718
    3⤵
    PID:1104
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2116,17540777444234475454,14342167481714823606,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2148 /prefetch:2
    3⤵
    PID:2800
- - 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=2116,17540777444234475454,14342167481714823606,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2452 /prefetch:3
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:1816
- - 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=2116,17540777444234475454,14342167481714823606,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2692 /prefetch:8
    3⤵
    PID:4328
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2116,17540777444234475454,14342167481714823606,131072 --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=3804 /prefetch:1
    3⤵
    PID:1844
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2116,17540777444234475454,14342167481714823606,131072 --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=3832 /prefetch:1
    3⤵
    PID:4752
- - 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=2116,17540777444234475454,14342167481714823606,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5268 /prefetch:8
    3⤵
    PID:3788
- - 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=2116,17540777444234475454,14342167481714823606,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5464 /prefetch:8
    3⤵
    PID:3716
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2116,17540777444234475454,14342167481714823606,131072 --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=5296 /prefetch:1
    3⤵
    PID:4828
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2116,17540777444234475454,14342167481714823606,131072 --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=5468 /prefetch:1
    3⤵
    PID:3420
- - 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=2116,17540777444234475454,14342167481714823606,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3872 /prefetch:8
    3⤵
    PID:1468
- - 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:1772
  - - 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,0x7ff73eb05460,0x7ff73eb05470,0x7ff73eb05480
      4⤵
      PID:2904
- - 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=2116,17540777444234475454,14342167481714823606,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3872 /prefetch:8
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:5096
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --field-trial-handle=2116,17540777444234475454,14342167481714823606,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=1908 /prefetch:8
    3⤵
    PID:3480
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --field-trial-handle=2116,17540777444234475454,14342167481714823606,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=1324 /prefetch:8
    3⤵
    PID:4768
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=unzip.mojom.Unzipper --field-trial-handle=2116,17540777444234475454,14342167481714823606,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3176 /prefetch:8
    3⤵
    PID:3476
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /C del /Q /F "C:\Users\Admin\AppData\Local\Temp\f6045c3d60fb2e0ddbb264cd61adc37736508471aa5b3881f2510ec36ea6c00f.exe"
  2⤵
  PID:2620

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:540

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

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Downloads

C:\Users\Admin\DesktopOSIRIS.htm

Filesize
8KB

MD5
fc29c955616f6dee48192bdac161c54f

SHA1
9cb8b1ff48300744a3b08e12b909dc585d7e8235

SHA256
b9f32d5be340aae5ebc404e7e9509e12cb7ae40d9d7d151d66283c48ebe3d82b

SHA512
0a8edd62ea0a2815f40579d78b11618966319f8837fdb8055bae7542e6f503813391ab9ed5f321f5b468769947afb76b1ceb455e5221b9eb980a8269609e2204

Download Submit
memory/4260-139-0x0000000004080000-0x00000000040A7000-memory.dmp

Filesize
156KB

Download
memory/4260-134-0x0000000002EA0000-0x0000000002EC7000-memory.dmp

Filesize
156KB

Download
memory/4260-130-0x0000000002EA0000-0x0000000002EC7000-memory.dmp

Filesize
156KB

Download
memory/4260-135-0x0000000004080000-0x00000000040A7000-memory.dmp

Filesize
156KB

Download
memory/4260-133-0x0000000004080000-0x00000000040A7000-memory.dmp

Filesize
156KB

Download
memory/4260-131-0x0000000000400000-0x0000000000456000-memory.dmp

Filesize
344KB

Download