locky | 0a2bc257eb1e266e2fd7c608bbb7e1f2ed34660c8ff21f32999fe49c6997329b

Analysis

max time kernel
138s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
24/05/2022, 18:32

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General

Target

0a2bc257eb1e266e2fd7c608bbb7e1f2ed34660c8ff21f32999fe49c6997329b.exe
Size

303KB
MD5

d5fee0c6f1d0d730de259c64e6373a0c
SHA1

894f45f50454001bd21ad2713fefc15eb25b2b8b
SHA256

0a2bc257eb1e266e2fd7c608bbb7e1f2ed34660c8ff21f32999fe49c6997329b
SHA512

fa39d6cdf1c00ec33ce02df71d16d83d58095d09d6a2a1c9d31ceb0bcd1d0c01abbe39daa49de37fab525a59678db241d2d2ebb36359c203a2e25c808c6b5f79

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

description	ioc	Process
File opened for modification	\??\c:\Users\Admin\Pictures\UndoClose.tiff	0a2bc257eb1e266e2fd7c608bbb7e1f2ed34660c8ff21f32999fe49c6997329b.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-1-5-21-1809750270-3141839489-3074374771-1000\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-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\DesktopOSIRIS.bmp"	0a2bc257eb1e266e2fd7c608bbb7e1f2ed34660c8ff21f32999fe49c6997329b.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft\Edge\Application\SetupMetrics\d0f62f5e-8bce-438c-827a-61aff699015c.tmp	setup.exe
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\SetupMetrics\20220524191251.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-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\Desktop\TileWallpaper = "0"	0a2bc257eb1e266e2fd7c608bbb7e1f2ed34660c8ff21f32999fe49c6997329b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\Desktop\WallpaperStyle = "0"	0a2bc257eb1e266e2fd7c608bbb7e1f2ed34660c8ff21f32999fe49c6997329b.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 6 IoCs

pid	Process
2284	msedge.exe
2284	msedge.exe
2508	msedge.exe
2508	msedge.exe
1852	identity_helper.exe
1852	identity_helper.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs

pid	Process
2508	msedge.exe
2508	msedge.exe
2508	msedge.exe
2508	msedge.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2508	msedge.exe
2508	msedge.exe
2508	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4532 wrote to memory of 2508	4532	0a2bc257eb1e266e2fd7c608bbb7e1f2ed34660c8ff21f32999fe49c6997329b.exe	99
PID 4532 wrote to memory of 2508	4532	0a2bc257eb1e266e2fd7c608bbb7e1f2ed34660c8ff21f32999fe49c6997329b.exe	99
PID 4532 wrote to memory of 3860	4532	0a2bc257eb1e266e2fd7c608bbb7e1f2ed34660c8ff21f32999fe49c6997329b.exe	100
PID 4532 wrote to memory of 3860	4532	0a2bc257eb1e266e2fd7c608bbb7e1f2ed34660c8ff21f32999fe49c6997329b.exe	100
PID 4532 wrote to memory of 3860	4532	0a2bc257eb1e266e2fd7c608bbb7e1f2ed34660c8ff21f32999fe49c6997329b.exe	100
PID 2508 wrote to memory of 2152	2508	msedge.exe	102
PID 2508 wrote to memory of 2152	2508	msedge.exe	102
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 4184	2508	msedge.exe	104
PID 2508 wrote to memory of 2284	2508	msedge.exe	106
PID 2508 wrote to memory of 2284	2508	msedge.exe	106
PID 2508 wrote to memory of 1460	2508	msedge.exe	107
PID 2508 wrote to memory of 1460	2508	msedge.exe	107
PID 2508 wrote to memory of 1460	2508	msedge.exe	107
PID 2508 wrote to memory of 1460	2508	msedge.exe	107
PID 2508 wrote to memory of 1460	2508	msedge.exe	107
PID 2508 wrote to memory of 1460	2508	msedge.exe	107
PID 2508 wrote to memory of 1460	2508	msedge.exe	107
PID 2508 wrote to memory of 1460	2508	msedge.exe	107
PID 2508 wrote to memory of 1460	2508	msedge.exe	107
PID 2508 wrote to memory of 1460	2508	msedge.exe	107
PID 2508 wrote to memory of 1460	2508	msedge.exe	107
PID 2508 wrote to memory of 1460	2508	msedge.exe	107
PID 2508 wrote to memory of 1460	2508	msedge.exe	107
PID 2508 wrote to memory of 1460	2508	msedge.exe	107
PID 2508 wrote to memory of 1460	2508	msedge.exe	107

C:\Users\Admin\AppData\Local\Temp\0a2bc257eb1e266e2fd7c608bbb7e1f2ed34660c8ff21f32999fe49c6997329b.exe
"C:\Users\Admin\AppData\Local\Temp\0a2bc257eb1e266e2fd7c608bbb7e1f2ed34660c8ff21f32999fe49c6997329b.exe"
1⤵
- Modifies extensions of user files
- Sets desktop wallpaper using registry
- Modifies Control Panel
- Suspicious use of WriteProcessMemory
PID:4532
- 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:2508
- - 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=0xd8,0xfc,0x100,0xb0,0x104,0x7ffe59d146f8,0x7ffe59d14708,0x7ffe59d14718
    3⤵
    PID:2152
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2172,7482987925808346983,8675422449358262394,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2180 /prefetch:2
    3⤵
    PID:4184
- - 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=2172,7482987925808346983,8675422449358262394,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2248 /prefetch:3
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:2284
- - 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=2172,7482987925808346983,8675422449358262394,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2932 /prefetch:8
    3⤵
    PID:1460
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2172,7482987925808346983,8675422449358262394,131072 --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=3328 /prefetch:1
    3⤵
    PID:1156
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2172,7482987925808346983,8675422449358262394,131072 --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=3900 /prefetch:1
    3⤵
    PID:2784
- - 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=2172,7482987925808346983,8675422449358262394,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5232 /prefetch:8
    3⤵
    PID:1036
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2172,7482987925808346983,8675422449358262394,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5320 /prefetch:1
    3⤵
    PID:4980
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2172,7482987925808346983,8675422449358262394,131072 --disable-gpu-compositing --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5332 /prefetch:1
    3⤵
    PID:2988
- - 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=2172,7482987925808346983,8675422449358262394,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5944 /prefetch:8
    3⤵
    PID:4172
- - 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=2172,7482987925808346983,8675422449358262394,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=6148 /prefetch:8
    3⤵
    PID:5024
- - 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:1380
  - - 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,0x7ff610c95460,0x7ff610c95470,0x7ff610c95480
      4⤵
      PID:2088
- - 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=2172,7482987925808346983,8675422449358262394,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=6148 /prefetch:8
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:1852
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /C del /Q /F "C:\Users\Admin\AppData\Local\Temp\0a2bc257eb1e266e2fd7c608bbb7e1f2ed34660c8ff21f32999fe49c6997329b.exe"
  2⤵
  PID:3860

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:3416

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k appmodel -p -s camsvc
1⤵
PID:3112

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
7KB

MD5
dd612244aba7811fbd03718459d539e0

SHA1
693e245526fbd38c738e23e5547c81e6362ef4e8

SHA256
dd06877ca18039b91f1ec8813672f39b7470471630e657574b2f20d115a296b9

SHA512
23622b1bf7fb1c9d70f145fb68f5b75029d2643b95d2f8845b09cd1e7060136c6014de806cc46a8e8eb7dae1221eddfdaf30350edcdb424c17864ca6c7dfd312

Download Submit
memory/4532-131-0x0000000003380000-0x00000000033A5000-memory.dmp

Filesize
148KB

Download
memory/4532-134-0x0000000003340000-0x0000000003367000-memory.dmp

Filesize
156KB

Download
memory/4532-132-0x0000000000400000-0x0000000000450000-memory.dmp

Filesize
320KB

Download