locky | 4d6aa12717b547f1e5ea64a0ec5ae70e569a5f87d10dee4beb8dee135eb0d24e

General

Target

jhdsgvc74.exe
Size

654KB
MD5

693ef59145aa6b9e329f91538855ef64
SHA1

e3067d7c7227af026c0abfbdf7b417c4e294f380
SHA256

3a810cbad7296f83122c4a16b935a723d8019419069a55c939d93c246abed2ac
SHA512

3f0ad7a869823d63d1867f4bf2322e88a909324bab80e7e6d8906237db0aea669326030f16a337980681cfd94c86a955ccb2747ff41be0bf75da112a53693a6b

Score

10^/10

locky persistence ransomware

Malware Config

Signatures

Locky
Ransomware strain released in 2016, with advanced features like anti-analysis.
ransomware locky
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490
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-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows\CurrentVersion\Run msedge.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows\CurrentVersion\Run	msedge.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

Processes:

jhdsgvc74.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\ykcol.bmp"	jhdsgvc74.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\ee11c0ec-d055-4a60-916e-de9443999d06.tmp	setup.exe
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\SetupMetrics\20220712052411.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

Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

Processes:

vssadmin.exe

pid process

1804 vssadmin.exe

pid	process
1804	vssadmin.exe

Modifies Control Panel 2 IoCs

evasion

Processes:

jhdsgvc74.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\Desktop\WallpaperStyle = "0"	jhdsgvc74.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\Desktop\TileWallpaper = "0"	jhdsgvc74.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

4024 msedge.exe
4024 msedge.exe
4000 msedge.exe
4000 msedge.exe
448 identity_helper.exe
448 identity_helper.exe
Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs

Processes:

msedge.exe

pid process

4000 msedge.exe
4000 msedge.exe
4000 msedge.exe
4000 msedge.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

vssvc.exe

description pid process

Token: SeBackupPrivilege 1732 vssvc.exe
Token: SeRestorePrivilege 1732 vssvc.exe
Token: SeAuditPrivilege 1732 vssvc.exe
Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

msedge.exe

pid process

4000 msedge.exe
4000 msedge.exe
4000 msedge.exe

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

pid	process
4024	msedge.exe
4024	msedge.exe
4000	msedge.exe
4000	msedge.exe
448	identity_helper.exe
448	identity_helper.exe

pid	process
4000	msedge.exe
4000	msedge.exe
4000	msedge.exe
4000	msedge.exe

description	pid	process
Token: SeBackupPrivilege	1732	vssvc.exe
Token: SeRestorePrivilege	1732	vssvc.exe
Token: SeAuditPrivilege	1732	vssvc.exe

pid	process
4000	msedge.exe
4000	msedge.exe
4000	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

jhdsgvc74.exemsedge.exe

description	pid	process	target process
PID 396 wrote to memory of 4000	396	jhdsgvc74.exe	msedge.exe
PID 396 wrote to memory of 4000	396	jhdsgvc74.exe	msedge.exe
PID 396 wrote to memory of 176	396	jhdsgvc74.exe	cmd.exe
PID 396 wrote to memory of 176	396	jhdsgvc74.exe	cmd.exe
PID 396 wrote to memory of 176	396	jhdsgvc74.exe	cmd.exe
PID 4000 wrote to memory of 3756	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3756	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 3688	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 4024	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 4024	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 4832	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 4832	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 4832	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 4832	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 4832	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 4832	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 4832	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 4832	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 4832	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 4832	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 4832	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 4832	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 4832	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 4832	4000	msedge.exe	msedge.exe
PID 4000 wrote to memory of 4832	4000	msedge.exe	msedge.exe

C:\Users\Admin\AppData\Local\Temp\jhdsgvc74.exe
"C:\Users\Admin\AppData\Local\Temp\jhdsgvc74.exe"
1⤵
- Sets desktop wallpaper using registry
- Modifies Control Panel
- Suspicious use of WriteProcessMemory
PID:396

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument C:\Users\Admin\Desktop\ykcol.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:4000

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,0x100,0xd4,0x104,0x7ff89bca46f8,0x7ff89bca4708,0x7ff89bca4718
3⤵
PID:3756

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2144,11195458827175732410,10463426305003299095,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2196 /prefetch:2
3⤵
PID:3688

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=2144,11195458827175732410,10463426305003299095,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2276 /prefetch:3
3⤵
- Suspicious behavior: EnumeratesProcesses
PID:4024

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=2144,11195458827175732410,10463426305003299095,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2684 /prefetch:8
3⤵
PID:4832

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2144,11195458827175732410,10463426305003299095,131072 --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=3344 /prefetch:1
3⤵
PID:4744

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2144,11195458827175732410,10463426305003299095,131072 --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=3368 /prefetch:1
3⤵
PID:4964

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=2144,11195458827175732410,10463426305003299095,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=4804 /prefetch:8
3⤵
PID:4128

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=2144,11195458827175732410,10463426305003299095,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5772 /prefetch:8
3⤵
PID:4920

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2144,11195458827175732410,10463426305003299095,131072 --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=5836 /prefetch:1
3⤵
PID:4760

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2144,11195458827175732410,10463426305003299095,131072 --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=5852 /prefetch:1
3⤵
PID:3496

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=2144,11195458827175732410,10463426305003299095,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3504 /prefetch:8
3⤵
PID:2340

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:5068

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,0x7ff79bcd5460,0x7ff79bcd5470,0x7ff79bcd5480
4⤵
PID:4500

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=2144,11195458827175732410,10463426305003299095,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=3504 /prefetch:8
3⤵
- Suspicious behavior: EnumeratesProcesses
PID:448

C:\Windows\SysWOW64\cmd.exe
cmd.exe /C del /Q /F "C:\Users\Admin\AppData\Local\Temp\jhdsgvc74.exe"
2⤵
PID:176

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1732

C:\Windows\system32\vssadmin.exe
C:\Windows\system32\vssadmin.exe Delete Shadows /Quiet /All
1⤵
- Interacts with shadow copies
PID:1804

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:532

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

File Deletion

2

T1107

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

2

T1082

Query Registry

1

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Inhibit System Recovery

2

T1490

Defacement

1

T1491

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Downloads

C:\Users\Admin\Desktop\ykcol.htm
Filesize
8KB

MD5
69b374fafa5d5517389affaed5f711a8

SHA1
db3580c69e0af4584d5c0a16b7afb2e4a5ac5c37

SHA256
8f4314e59f44f4fe1f69dbd4e2b5e0eb4be30b1a1fcef20e5706248df4e805fb

SHA512
effe2568c52f32caf2c2e70039a13e77c2009b2b762be1f7df35d95af52170366f92180138ea48724b4f6f160e0ac60579b8113561e7c3533bcffaba21df2016

Download Submit
\??\pipe\LOCAL\crashpad_4000_LSVQPQDSMMIRRSEF
MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
memory/176-133-0x0000000000000000-mapping.dmp

Download
memory/396-131-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/396-130-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/448-156-0x0000000000000000-mapping.dmp

Download
memory/3496-153-0x0000000000000000-mapping.dmp

Download
memory/3688-136-0x0000000000000000-mapping.dmp

Download
memory/3756-134-0x0000000000000000-mapping.dmp

Download
memory/4000-132-0x0000000000000000-mapping.dmp

Download
memory/4024-137-0x0000000000000000-mapping.dmp

Download
memory/4128-147-0x0000000000000000-mapping.dmp

Download
memory/4500-155-0x0000000000000000-mapping.dmp

Download
memory/4744-142-0x0000000000000000-mapping.dmp

Download
memory/4760-151-0x0000000000000000-mapping.dmp

Download
memory/4832-140-0x0000000000000000-mapping.dmp

Download
memory/4920-149-0x0000000000000000-mapping.dmp

Download
memory/4964-144-0x0000000000000000-mapping.dmp

Download
memory/5068-154-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads