locky | f329ea2c754ab196d15c20fbf9abd722fa63630631144c5a409bd2a20172196b

Resubmissions

18-09-2022 19:48

220918-yh3tkaffal 10

18-09-2022 18:14

220918-wveamafebk 10

Analysis

max time kernel
208s
max time network
210s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
18-09-2022 19:48

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General

Target

V7bTrYJ4lbO6OS.dll
Size

159KB
MD5

7932ee5fa6f83b149569752c47e04b87
SHA1

6eb115feadc5808507fb5a666dd18aa89a45616c
SHA256

f329ea2c754ab196d15c20fbf9abd722fa63630631144c5a409bd2a20172196b
SHA512

17ba26e69f7536f5adaa52454fbd407338be61d97bc396baa591de9fa19aab3e539b4ca32059b2ddb1b901ac7ecd341dff9ead706fc0d058086e6b3795642f58
SSDEEP

3072:pusrpo1j49JvKa0ePbh37E6ZO78buZKxrF:ZQcvKpE37E6nmKhF

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

Blocklisted process makes network request 5 IoCs

flow	pid	Process
13	3704	rundll32.exe
14	3704	rundll32.exe
26	3704	rundll32.exe
35	3704	rundll32.exe
39	3704	rundll32.exe

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\CompareUndo.tiff	rundll32.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-1-5-21-2629973501-4017243118-3254762364-1000\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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\DesktopOSIRIS.bmp"	rundll32.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\SetupMetrics\20220918215004.pma	setup.exe
File created	C:\Program Files (x86)\Microsoft\Edge\Application\SetupMetrics\435f0163-94f1-40c0-af34-f8d6016243ac.tmp	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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\Desktop\WallpaperStyle = "0"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\Desktop\TileWallpaper = "0"	rundll32.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
4488	msedge.exe
4488	msedge.exe
924	msedge.exe
924	msedge.exe
4284	identity_helper.exe
4284	identity_helper.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs

pid	Process
924	msedge.exe
924	msedge.exe
924	msedge.exe
924	msedge.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
924	msedge.exe
924	msedge.exe
924	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1284 wrote to memory of 3704	1284	rundll32.exe	80
PID 1284 wrote to memory of 3704	1284	rundll32.exe	80
PID 1284 wrote to memory of 3704	1284	rundll32.exe	80
PID 3704 wrote to memory of 924	3704	rundll32.exe	90
PID 3704 wrote to memory of 924	3704	rundll32.exe	90
PID 924 wrote to memory of 4196	924	msedge.exe	91
PID 924 wrote to memory of 4196	924	msedge.exe	91
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4148	924	msedge.exe	94
PID 924 wrote to memory of 4488	924	msedge.exe	95
PID 924 wrote to memory of 4488	924	msedge.exe	95
PID 924 wrote to memory of 3936	924	msedge.exe	97
PID 924 wrote to memory of 3936	924	msedge.exe	97
PID 924 wrote to memory of 3936	924	msedge.exe	97
PID 924 wrote to memory of 3936	924	msedge.exe	97
PID 924 wrote to memory of 3936	924	msedge.exe	97
PID 924 wrote to memory of 3936	924	msedge.exe	97
PID 924 wrote to memory of 3936	924	msedge.exe	97
PID 924 wrote to memory of 3936	924	msedge.exe	97
PID 924 wrote to memory of 3936	924	msedge.exe	97
PID 924 wrote to memory of 3936	924	msedge.exe	97
PID 924 wrote to memory of 3936	924	msedge.exe	97
PID 924 wrote to memory of 3936	924	msedge.exe	97
PID 924 wrote to memory of 3936	924	msedge.exe	97
PID 924 wrote to memory of 3936	924	msedge.exe	97
PID 924 wrote to memory of 3936	924	msedge.exe	97

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\V7bTrYJ4lbO6OS.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1284
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\V7bTrYJ4lbO6OS.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Modifies extensions of user files
  - Sets desktop wallpaper using registry
  - Modifies Control Panel
  - Suspicious use of WriteProcessMemory
  PID:3704
- - 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
    3⤵
    - 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:924
  - - 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,0x100,0xd4,0x104,0x7ffca10b46f8,0x7ffca10b4708,0x7ffca10b4718
      4⤵
      PID:4196
  - - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1516,12445491856346606693,6504699107234267678,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2192 /prefetch:2
      4⤵
      PID:4148
  - - 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=1516,12445491856346606693,6504699107234267678,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2268 /prefetch:3
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:4488
  - - 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=1516,12445491856346606693,6504699107234267678,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2756 /prefetch:8
      4⤵
      PID:3936
  - - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1516,12445491856346606693,6504699107234267678,131072 --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=3892 /prefetch:1
      4⤵
      PID:1952
  - - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1516,12445491856346606693,6504699107234267678,131072 --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=3804 /prefetch:1
      4⤵
      PID:3376
  - - 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=1516,12445491856346606693,6504699107234267678,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5276 /prefetch:8
      4⤵
      PID:3256
  - - 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=1516,12445491856346606693,6504699107234267678,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5260 /prefetch:8
      4⤵
      PID:364
  - - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1516,12445491856346606693,6504699107234267678,131072 --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=5436 /prefetch:1
      4⤵
      PID:920
  - - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1516,12445491856346606693,6504699107234267678,131072 --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=5412 /prefetch:1
      4⤵
      PID:3928
  - - 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=1516,12445491856346606693,6504699107234267678,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5752 /prefetch:8
      4⤵
      PID:1996
  - - 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
      4⤵
      Drops file in Program Files directory
      PID:5036
    - - 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,0x7ff7e9755460,0x7ff7e9755470,0x7ff7e9755480
        5⤵
        
        PID:4924
  - - 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=1516,12445491856346606693,6504699107234267678,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5752 /prefetch:8
      4⤵
      Suspicious behavior: EnumeratesProcesses
      PID:4284
  - - 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=1516,12445491856346606693,6504699107234267678,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=1924 /prefetch:8
      4⤵
      PID:1528
  - - 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=1516,12445491856346606693,6504699107234267678,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=3892 /prefetch:8
      4⤵
      PID:644
  - - 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=1516,12445491856346606693,6504699107234267678,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=1812 /prefetch:8
      4⤵
      PID:4636

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4092

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
627599eb10c77d2e3d80f38452d3ef98

SHA1
fbcfe39d25c57da6eb36ec66bfd2408e8e35b6d9

SHA256
4f264db2a0a4ffd267aaf603c853a4211c2d7befdf14ff9a75e53b0f78e35266

SHA512
4f2c89f9d312aba49558604544a6818a83a3b3abc8e5733806e27eb427a26eb186eefbd9e1cfad4402b4def20010da540264cf9a128121cd99f546b63b58a99f

Download Submit
memory/3704-135-0x0000000075770000-0x00000000757A2000-memory.dmp

Filesize
200KB

Download
memory/3704-133-0x0000000075770000-0x00000000757A2000-memory.dmp

Filesize
200KB

Download
memory/3704-136-0x0000000075770000-0x00000000757A2000-memory.dmp

Filesize
200KB

Download