locky_lukitus | e454cd6f7220ae25083c5e183e04fde1c26b1b6d9119e2aca4fc8b0125cd0be7

General

Target

c8be3a7e91cfa426531935853823e4ba_JaffaCakes118.exe
Size

590KB
MD5

c8be3a7e91cfa426531935853823e4ba
SHA1

137c5469f469d721a4fbba9ba87d6e2e9f0005e6
SHA256

e454cd6f7220ae25083c5e183e04fde1c26b1b6d9119e2aca4fc8b0125cd0be7
SHA512

18de5016689e72c6d99720d1cc1f4a831ed07f8447a7fdd4e0dc9d0aacce5882c02dd417588a715dca86a8becd2e9024ec0f9336eaa0b5b6eadf09d75f952db2
SSDEEP

12288:VmXxN5Hef7wWHX+IuNEFVqhJuWYI17c8Z7zo1N9:uN5+f7t3cEFVq5Y0wu7zo

Score

10^/10

locky_lukitus defense_evasion discovery ransomware

Malware Config

Signatures

Locky (Lukitus variant)
Variant of the Locky ransomware seen in the wild since late 2017.
ransomware locky_lukitus
Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\lukitus.bmp"	c8be3a7e91cfa426531935853823e4ba_JaffaCakes118.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c8be3a7e91cfa426531935853823e4ba_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	c8be3a7e91cfa426531935853823e4ba_JaffaCakes118.exe

Modifies Control Panel 2 IoCs

evasion

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\Desktop\WallpaperStyle = "0"	c8be3a7e91cfa426531935853823e4ba_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\Desktop\TileWallpaper = "0"	c8be3a7e91cfa426531935853823e4ba_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 5072 wrote to memory of 5108	5072	c8be3a7e91cfa426531935853823e4ba_JaffaCakes118.exe	110
PID 5072 wrote to memory of 5108	5072	c8be3a7e91cfa426531935853823e4ba_JaffaCakes118.exe	110
PID 5072 wrote to memory of 5084	5072	c8be3a7e91cfa426531935853823e4ba_JaffaCakes118.exe	111
PID 5072 wrote to memory of 5084	5072	c8be3a7e91cfa426531935853823e4ba_JaffaCakes118.exe	111
PID 5072 wrote to memory of 5084	5072	c8be3a7e91cfa426531935853823e4ba_JaffaCakes118.exe	111

C:\Users\Admin\AppData\Local\Temp\c8be3a7e91cfa426531935853823e4ba_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c8be3a7e91cfa426531935853823e4ba_JaffaCakes118.exe"
1⤵
- Sets desktop wallpaper using registry
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Modifies Control Panel
- Suspicious use of WriteProcessMemory
PID:5072
- 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⤵
  PID:5108
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /C del /Q /F "C:\Users\Admin\AppData\Local\Temp\c8be3a7e91cfa426531935853823e4ba_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:5084

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4360,i,7447299413640964517,4240724842020506306,262144 --variations-seed-version --mojo-platform-channel-handle=4408 /prefetch:8
1⤵
PID:880

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=12 --field-trial-handle=4068,i,7447299413640964517,4240724842020506306,262144 --variations-seed-version --mojo-platform-channel-handle=4864 /prefetch:1
1⤵
PID:312

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=11 --field-trial-handle=3852,i,7447299413640964517,4240724842020506306,262144 --variations-seed-version --mojo-platform-channel-handle=5020 /prefetch:1
1⤵
PID:1528

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=13 --field-trial-handle=5420,i,7447299413640964517,4240724842020506306,262144 --variations-seed-version --mojo-platform-channel-handle=5432 /prefetch:1
1⤵
PID:3088

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=5484,i,7447299413640964517,4240724842020506306,262144 --variations-seed-version --mojo-platform-channel-handle=5648 /prefetch:8
1⤵
PID:1296

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=entity_extraction_service.mojom.Extractor --lang=en-US --service-sandbox-type=entity_extraction --onnx-enabled-for-ee --field-trial-handle=5496,i,7447299413640964517,4240724842020506306,262144 --variations-seed-version --mojo-platform-channel-handle=5504 /prefetch:8
1⤵
PID:964

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --enable-dinosaur-easter-egg-alt-images --disable-gpu-compositing --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=16 --field-trial-handle=6040,i,7447299413640964517,4240724842020506306,262144 --variations-seed-version --mojo-platform-channel-handle=6048 /prefetch:1
1⤵
PID:4900

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=edge_search_indexer.mojom.SearchIndexerInterfaceBroker --lang=en-US --service-sandbox-type=search_indexer --message-loop-type-ui --field-trial-handle=4384,i,7447299413640964517,4240724842020506306,262144 --variations-seed-version --mojo-platform-channel-handle=4072 /prefetch:8
1⤵
PID:924

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Indicator Removal

1

T1070

File Deletion

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Defacement

1

T1491

Replay Monitor

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Downloads

C:\Users\Admin\Desktop\lukitus-5a2f.htm

Filesize
8KB

MD5
3eecf5ce938e0b00647d5265680605d0

SHA1
ef756b0840d437147c758a6648f6952d0d7d127e

SHA256
5cebc67921584bb1fa4da0baa94aa264c3cb6fd9f38326eef2f8719a50336325

SHA512
9b42b26389be4b060744aa68d82f03adaab257d438d93b8813a8799d374615abe65042dc409a69cdd0ff77e33eb7a06fe44a0d131dc861b736385db6d433d4ee

Download Submit
memory/5072-6-0x0000000002740000-0x0000000002741000-memory.dmp

Filesize
4KB

Download
memory/5072-2-0x0000000002740000-0x0000000002741000-memory.dmp

Filesize
4KB

Download
memory/5072-3-0x00000000025E0000-0x00000000025E1000-memory.dmp

Filesize
4KB

Download
memory/5072-5-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/5072-4-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/5072-0-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/5072-7-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/5072-8-0x00000000025E0000-0x00000000025E1000-memory.dmp

Filesize
4KB

Download
memory/5072-11-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/5072-13-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/5072-1-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download
memory/5072-298-0x0000000000400000-0x0000000000496000-memory.dmp

Filesize
600KB

Download

Analysis

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