locky | 1d4a3957a4f4d83f1edffcb0b596e04d98c82f801ae4b23208a34076203f42f6

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
07/06/2022, 04:06

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General

Target

1d4a3957a4f4d83f1edffcb0b596e04d98c82f801ae4b23208a34076203f42f6.exe
Size

634KB
MD5

c77d1c0c0ecd0b2f81f2bcf89fb07279
SHA1

be7d13c25052903d150ed07e836e210e298b9995
SHA256

1d4a3957a4f4d83f1edffcb0b596e04d98c82f801ae4b23208a34076203f42f6
SHA512

a967039c4a9804b3ff51c25fafa93322f983eaa52fe4361cae3f5a54c02eafc0bea8e848a3e94ba17e09622b53466dabef14c1a775f0958f06c6aa8e70b9e091

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

Modifies extensions of user files 2 IoCs

Ransomware generally changes the extension on encrypted files.

ransomware

description	ioc	Process
File opened for modification	\??\c:\Users\Admin\Pictures\LimitConfirm.tiff	1d4a3957a4f4d83f1edffcb0b596e04d98c82f801ae4b23208a34076203f42f6.exe
File opened for modification	\??\c:\Users\Admin\Pictures\SkipMount.tiff	1d4a3957a4f4d83f1edffcb0b596e04d98c82f801ae4b23208a34076203f42f6.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-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows\CurrentVersion\Run	msedge.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\asasin.bmp"	1d4a3957a4f4d83f1edffcb0b596e04d98c82f801ae4b23208a34076203f42f6.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft\Edge\Application\SetupMetrics\aa93f4d6-abd9-436f-bca3-efb89b1ce9a2.tmp	setup.exe
File opened for modification	C:\Program Files (x86)\Microsoft\Edge\Application\SetupMetrics\20220607063530.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
4540	vssadmin.exe

Modifies Control Panel 2 IoCs

evasion

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\Desktop\WallpaperStyle = "0"	1d4a3957a4f4d83f1edffcb0b596e04d98c82f801ae4b23208a34076203f42f6.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\Desktop\TileWallpaper = "0"	1d4a3957a4f4d83f1edffcb0b596e04d98c82f801ae4b23208a34076203f42f6.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 7 IoCs

pid	Process
1088	msedge.exe
1088	msedge.exe
2124	msedge.exe
2124	msedge.exe
2124	msedge.exe
1900	identity_helper.exe
1900	identity_helper.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 4 IoCs

pid	Process
2124	msedge.exe
2124	msedge.exe
2124	msedge.exe
2124	msedge.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

description	pid	Process
Token: SeDebugPrivilege	3580	1d4a3957a4f4d83f1edffcb0b596e04d98c82f801ae4b23208a34076203f42f6.exe
Token: SeTakeOwnershipPrivilege	3580	1d4a3957a4f4d83f1edffcb0b596e04d98c82f801ae4b23208a34076203f42f6.exe
Token: SeBackupPrivilege	3580	1d4a3957a4f4d83f1edffcb0b596e04d98c82f801ae4b23208a34076203f42f6.exe
Token: SeRestorePrivilege	3580	1d4a3957a4f4d83f1edffcb0b596e04d98c82f801ae4b23208a34076203f42f6.exe
Token: SeBackupPrivilege	1748	vssvc.exe
Token: SeRestorePrivilege	1748	vssvc.exe
Token: SeAuditPrivilege	1748	vssvc.exe
Token: SeBackupPrivilege	4800	vssvc.exe
Token: SeRestorePrivilege	4800	vssvc.exe
Token: SeAuditPrivilege	4800	vssvc.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2124	msedge.exe
2124	msedge.exe
2124	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3580 wrote to memory of 2124	3580	1d4a3957a4f4d83f1edffcb0b596e04d98c82f801ae4b23208a34076203f42f6.exe	89
PID 3580 wrote to memory of 2124	3580	1d4a3957a4f4d83f1edffcb0b596e04d98c82f801ae4b23208a34076203f42f6.exe	89
PID 3580 wrote to memory of 5068	3580	1d4a3957a4f4d83f1edffcb0b596e04d98c82f801ae4b23208a34076203f42f6.exe	90
PID 3580 wrote to memory of 5068	3580	1d4a3957a4f4d83f1edffcb0b596e04d98c82f801ae4b23208a34076203f42f6.exe	90
PID 3580 wrote to memory of 5068	3580	1d4a3957a4f4d83f1edffcb0b596e04d98c82f801ae4b23208a34076203f42f6.exe	90
PID 2124 wrote to memory of 3788	2124	msedge.exe	92
PID 2124 wrote to memory of 3788	2124	msedge.exe	92
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 2728	2124	msedge.exe	95
PID 2124 wrote to memory of 1088	2124	msedge.exe	96
PID 2124 wrote to memory of 1088	2124	msedge.exe	96
PID 2124 wrote to memory of 4524	2124	msedge.exe	97
PID 2124 wrote to memory of 4524	2124	msedge.exe	97
PID 2124 wrote to memory of 4524	2124	msedge.exe	97
PID 2124 wrote to memory of 4524	2124	msedge.exe	97
PID 2124 wrote to memory of 4524	2124	msedge.exe	97
PID 2124 wrote to memory of 4524	2124	msedge.exe	97
PID 2124 wrote to memory of 4524	2124	msedge.exe	97
PID 2124 wrote to memory of 4524	2124	msedge.exe	97
PID 2124 wrote to memory of 4524	2124	msedge.exe	97
PID 2124 wrote to memory of 4524	2124	msedge.exe	97
PID 2124 wrote to memory of 4524	2124	msedge.exe	97
PID 2124 wrote to memory of 4524	2124	msedge.exe	97
PID 2124 wrote to memory of 4524	2124	msedge.exe	97
PID 2124 wrote to memory of 4524	2124	msedge.exe	97
PID 2124 wrote to memory of 4524	2124	msedge.exe	97

C:\Users\Admin\AppData\Local\Temp\1d4a3957a4f4d83f1edffcb0b596e04d98c82f801ae4b23208a34076203f42f6.exe
"C:\Users\Admin\AppData\Local\Temp\1d4a3957a4f4d83f1edffcb0b596e04d98c82f801ae4b23208a34076203f42f6.exe"
1⤵
- Modifies extensions of user files
- Sets desktop wallpaper using registry
- Modifies Control Panel
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3580
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument C:\Users\Admin\Desktop\asasin.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:2124
- - 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=0xfc,0x100,0x104,0xd8,0x108,0x7ffae0eb46f8,0x7ffae0eb4708,0x7ffae0eb4718
    3⤵
    PID:3788
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2112,10725761794920289936,3757153393969334258,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2192 /prefetch:2
    3⤵
    PID:2728
- - 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=2112,10725761794920289936,3757153393969334258,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2256 /prefetch:3
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:1088
- - 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=2112,10725761794920289936,3757153393969334258,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2784 /prefetch:8
    3⤵
    PID:4524
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2112,10725761794920289936,3757153393969334258,131072 --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=3336 /prefetch:1
    3⤵
    PID:4584
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2112,10725761794920289936,3757153393969334258,131072 --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=3352 /prefetch:1
    3⤵
    PID:4020
- - 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=2112,10725761794920289936,3757153393969334258,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=4680 /prefetch:8
    3⤵
    PID:1064
- - 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=2112,10725761794920289936,3757153393969334258,131072 --lang=en-US --service-sandbox-type=service --mojo-platform-channel-handle=4864 /prefetch:8
    3⤵
    PID:3184
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2112,10725761794920289936,3757153393969334258,131072 --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=4680 /prefetch:1
    3⤵
    PID:1112
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2112,10725761794920289936,3757153393969334258,131072 --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=5044 /prefetch:1
    3⤵
    PID:2036
- - 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=2112,10725761794920289936,3757153393969334258,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5876 /prefetch:8
    3⤵
    PID:5032
- - 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:4712
  - - 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=0x220,0x224,0x228,0x1c4,0x22c,0x7ff641d75460,0x7ff641d75470,0x7ff641d75480
      4⤵
      PID:3956
- - 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=2112,10725761794920289936,3757153393969334258,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5876 /prefetch:8
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:1900
- - 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=2112,10725761794920289936,3757153393969334258,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=5420 /prefetch:8
    3⤵
    PID:4776
- - 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=2112,10725761794920289936,3757153393969334258,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=5380 /prefetch:8
    3⤵
    PID:3984
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /C del /Q /F "C:\Users\Admin\AppData\Local\Temp\1d4a3957a4f4d83f1edffcb0b596e04d98c82f801ae4b23208a34076203f42f6.exe"
  2⤵
  PID:5068

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1748

C:\Windows\system32\vssadmin.exe
C:\Windows\system32\vssadmin.exe Delete Shadows /Quiet /All
1⤵
- Interacts with shadow copies
PID:4540

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4800

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:5048

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\asasin.htm

Filesize
8KB

MD5
88b62a2bf6469cdfb078742ee3fde229

SHA1
0394cc9799c83fe0e9c8fcc21dd70adcf6271bc2

SHA256
31e43488c2147846889e06a7fd64dee28391c00fb3ef5714ebfdf8f7227c1528

SHA512
d1511424ac082b8ab799ba222133b7d6c1a6717a323d31e4a17b669540b1e99df692d34873c27433a5c607188a57f678d7f4937bf139bf30681c39ae292eda11

Download Submit
memory/3580-136-0x0000000000400000-0x00000000004A5BB0-memory.dmp

Filesize
662KB

Download
memory/3580-130-0x0000000000400000-0x0000000000489000-memory.dmp

Filesize
548KB

Download
memory/3580-133-0x0000000000400000-0x00000000004A5BB0-memory.dmp

Filesize
662KB

Download
memory/3580-131-0x0000000000400000-0x00000000004A5BB0-memory.dmp

Filesize
662KB

Download