locky_lukitus | 117da274f4076bdd7f3aa6e6b1d96c44100ccaef59194202fc166ee5f4be78b2

Analysis

max time kernel
151s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
04/06/2022, 03:37

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General

Target

117da274f4076bdd7f3aa6e6b1d96c44100ccaef59194202fc166ee5f4be78b2.exe
Size

654KB
MD5

0b40a2fff66d3c7f728b2d0e9ae861a6
SHA1

91f89d87f92ba4f96d16a96c35e56e039adf6979
SHA256

117da274f4076bdd7f3aa6e6b1d96c44100ccaef59194202fc166ee5f4be78b2
SHA512

dec02943bb4dfae04c0fcce7cb644aa60277f33cd4747270b4a2d3feb5ca53cf6a5d037eb618bc4c27e3ea266089a2fa8b0ae1fb68f9180fb9b4a15522834c5a

Score

10^/10

locky_lukitus persistence ransomware

Malware Config

Signatures

Locky (Lukitus variant)
Variant of the Locky ransomware seen in the wild since late 2017.
ransomware locky_lukitus
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware

File Deletion
T1107

Inhibit System Recovery
T1490

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\ConnectRemove.tiff	117da274f4076bdd7f3aa6e6b1d96c44100ccaef59194202fc166ee5f4be78b2.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\opt321 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\117da274f4076bdd7f3aa6e6b1d96c44100ccaef59194202fc166ee5f4be78b2.exe"	117da274f4076bdd7f3aa6e6b1d96c44100ccaef59194202fc166ee5f4be78b2.exe
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\\Desktop\\lukitus.bmp"	117da274f4076bdd7f3aa6e6b1d96c44100ccaef59194202fc166ee5f4be78b2.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft\Edge\Application\SetupMetrics\39cab103-46ac-4faf-bb6a-e9c2b4e7879c.tmp	setup.exe
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\SetupMetrics\20220604055520.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

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

pid	Process
4808	vssadmin.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\WallpaperStyle = "0"	117da274f4076bdd7f3aa6e6b1d96c44100ccaef59194202fc166ee5f4be78b2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\Desktop\TileWallpaper = "0"	117da274f4076bdd7f3aa6e6b1d96c44100ccaef59194202fc166ee5f4be78b2.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
4628	msedge.exe
4628	msedge.exe
3360	msedge.exe
3360	msedge.exe
4420	identity_helper.exe
4420	identity_helper.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs

pid	Process
3360	msedge.exe
3360	msedge.exe
3360	msedge.exe
3360	msedge.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeBackupPrivilege	1260	vssvc.exe
Token: SeRestorePrivilege	1260	vssvc.exe
Token: SeAuditPrivilege	1260	vssvc.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
3360	msedge.exe
3360	msedge.exe
3360	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 5084 wrote to memory of 3360	5084	117da274f4076bdd7f3aa6e6b1d96c44100ccaef59194202fc166ee5f4be78b2.exe	92
PID 5084 wrote to memory of 3360	5084	117da274f4076bdd7f3aa6e6b1d96c44100ccaef59194202fc166ee5f4be78b2.exe	92
PID 5084 wrote to memory of 3252	5084	117da274f4076bdd7f3aa6e6b1d96c44100ccaef59194202fc166ee5f4be78b2.exe	93
PID 5084 wrote to memory of 3252	5084	117da274f4076bdd7f3aa6e6b1d96c44100ccaef59194202fc166ee5f4be78b2.exe	93
PID 5084 wrote to memory of 3252	5084	117da274f4076bdd7f3aa6e6b1d96c44100ccaef59194202fc166ee5f4be78b2.exe	93
PID 3360 wrote to memory of 4944	3360	msedge.exe	95
PID 3360 wrote to memory of 4944	3360	msedge.exe	95
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4324	3360	msedge.exe	98
PID 3360 wrote to memory of 4628	3360	msedge.exe	99
PID 3360 wrote to memory of 4628	3360	msedge.exe	99
PID 3360 wrote to memory of 2680	3360	msedge.exe	100
PID 3360 wrote to memory of 2680	3360	msedge.exe	100
PID 3360 wrote to memory of 2680	3360	msedge.exe	100
PID 3360 wrote to memory of 2680	3360	msedge.exe	100
PID 3360 wrote to memory of 2680	3360	msedge.exe	100
PID 3360 wrote to memory of 2680	3360	msedge.exe	100
PID 3360 wrote to memory of 2680	3360	msedge.exe	100
PID 3360 wrote to memory of 2680	3360	msedge.exe	100
PID 3360 wrote to memory of 2680	3360	msedge.exe	100
PID 3360 wrote to memory of 2680	3360	msedge.exe	100
PID 3360 wrote to memory of 2680	3360	msedge.exe	100
PID 3360 wrote to memory of 2680	3360	msedge.exe	100
PID 3360 wrote to memory of 2680	3360	msedge.exe	100
PID 3360 wrote to memory of 2680	3360	msedge.exe	100
PID 3360 wrote to memory of 2680	3360	msedge.exe	100

C:\Users\Admin\AppData\Local\Temp\117da274f4076bdd7f3aa6e6b1d96c44100ccaef59194202fc166ee5f4be78b2.exe
"C:\Users\Admin\AppData\Local\Temp\117da274f4076bdd7f3aa6e6b1d96c44100ccaef59194202fc166ee5f4be78b2.exe"
1⤵
- Modifies extensions of user files
- Adds Run key to start application
- Sets desktop wallpaper using registry
- Modifies Control Panel
- Suspicious use of WriteProcessMemory
PID:5084
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument C:\Users\Admin\Desktop\lukitus.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:3360
- - 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=0x108,0x10c,0x110,0xe4,0x114,0x7ffa589846f8,0x7ffa58984708,0x7ffa58984718
    3⤵
    PID:4944
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2132,901637458303900619,12457391557403740544,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2144 /prefetch:2
    3⤵
    PID:4324
- - 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=2132,901637458303900619,12457391557403740544,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2196 /prefetch:3
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:4628
- - 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=2132,901637458303900619,12457391557403740544,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2672 /prefetch:8
    3⤵
    PID:2680
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2132,901637458303900619,12457391557403740544,131072 --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=3248 /prefetch:1
    3⤵
    PID:2096
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2132,901637458303900619,12457391557403740544,131072 --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=3332 /prefetch:1
    3⤵
    PID:2672
- - 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=2132,901637458303900619,12457391557403740544,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5176 /prefetch:8
    3⤵
    PID:1444
- - 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=2132,901637458303900619,12457391557403740544,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=5352 /prefetch:8
    3⤵
    PID:884
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2132,901637458303900619,12457391557403740544,131072 --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=5508 /prefetch:1
    3⤵
    PID:2288
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2132,901637458303900619,12457391557403740544,131072 --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=5544 /prefetch:1
    3⤵
    PID:1440
- - 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=2132,901637458303900619,12457391557403740544,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=6136 /prefetch:8
    3⤵
    PID:4268
- - 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:2700
  - - 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,0x7ff7f4075460,0x7ff7f4075470,0x7ff7f4075480
      4⤵
      PID:3088
- - 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=2132,901637458303900619,12457391557403740544,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=6136 /prefetch:8
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:4420
- - 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=2132,901637458303900619,12457391557403740544,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2388 /prefetch:8
    3⤵
    PID:3908
- - 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=2132,901637458303900619,12457391557403740544,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2416 /prefetch:8
    3⤵
    PID:1560
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /C del /Q /F "C:\Users\Admin\AppData\Local\Temp\117da274f4076bdd7f3aa6e6b1d96c44100ccaef59194202fc166ee5f4be78b2.exe"
  2⤵
  PID:3252

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1260

C:\Windows\system32\vssadmin.exe
C:\Windows\system32\vssadmin.exe Delete Shadows /Quiet /All
1⤵
- Interacts with shadow copies
PID:4808

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:4600

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

File Deletion

T1107

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

T1491

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

C:\Users\Admin\Desktop\lukitus.htm

Filesize
8KB

MD5
3a2f3a42a633e42eaf137339b3dbe086

SHA1
a330b28bf9ed2b87cfec9783d06bda974bf83daf

SHA256
b049e4f09fa91379566f2a66dbb8f1cc870e6f0e0c174b2496829bc179c1d749

SHA512
9fff64009b4e33845eec479d3665e5b1b5125c058dae21b8cd08e872228d8523e3bbfe0a829f7100582a64e4a02e56dd391dbd0536a48e41c51e59a0c82fd7ad

Download Submit
memory/5084-133-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download
memory/5084-134-0x0000000000400000-0x00000000004A6000-memory.dmp

Filesize
664KB

Download