wannacry | 7f12f469b6abb6fa29ce5c5200d5a677c70975ac103478d11ebdbeb81b2fb0eb

Resubmissions

24-03-2024 05:04

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24-03-2024 04:06

240324-epewjahe65 10

24-03-2024 04:03

240324-emrsbahe43 10

24-03-2024 03:43

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Analysis

max time kernel
1020s
max time network
1021s
platform
windows10-1703_x64
resource
win10-20240221-ja
resource tags

arch:x64arch:x86image:win10-20240221-jalocale:ja-jpos:windows10-1703-x64systemwindows
submitted
24-03-2024 04:03

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General

Target

2024-03-24_4fe6ac7f3aa7690c523a4ae5dff31da4_wannacry.exe
Size

3.6MB
MD5

4fe6ac7f3aa7690c523a4ae5dff31da4
SHA1

d86c9887fb7dfc216a467d6aa5a8d5b986495a89
SHA256

7f12f469b6abb6fa29ce5c5200d5a677c70975ac103478d11ebdbeb81b2fb0eb
SHA512

17d578d9661daf340e4dec29d65d22246e38a4aabce0b6fd7659a39a0896eb8d37f6951ff5a3a3b0ca843aff17731507af40dd26ce64617aa9670596b4624470
SSDEEP

98304:y763opJtK5ZcSUDcn6SAcdZvxWa9P593N:y763atKZcxcnZAcMadzN

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (20191) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046
Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046
Executes dropped EXE 1 IoCs

Processes:

tasksche.exe

pid process

2476 tasksche.exe

pid	process
2476	tasksche.exe

Drops file in System32 directory 5 IoCs

Processes:

2024-03-24_4fe6ac7f3aa7690c523a4ae5dff31da4_wannacry.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	2024-03-24_4fe6ac7f3aa7690c523a4ae5dff31da4_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\counters2.dat	2024-03-24_4fe6ac7f3aa7690c523a4ae5dff31da4_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	2024-03-24_4fe6ac7f3aa7690c523a4ae5dff31da4_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	2024-03-24_4fe6ac7f3aa7690c523a4ae5dff31da4_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	2024-03-24_4fe6ac7f3aa7690c523a4ae5dff31da4_wannacry.exe

Drops file in Windows directory 1 IoCs

Processes:

2024-03-24_4fe6ac7f3aa7690c523a4ae5dff31da4_wannacry.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 2024-03-24_4fe6ac7f3aa7690c523a4ae5dff31da4_wannacry.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	2024-03-24_4fe6ac7f3aa7690c523a4ae5dff31da4_wannacry.exe

Modifies data under HKEY_USERS 8 IoCs

Processes:

2024-03-24_4fe6ac7f3aa7690c523a4ae5dff31da4_wannacry.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-03-24_4fe6ac7f3aa7690c523a4ae5dff31da4_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-03-24_4fe6ac7f3aa7690c523a4ae5dff31da4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-03-24_4fe6ac7f3aa7690c523a4ae5dff31da4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-03-24_4fe6ac7f3aa7690c523a4ae5dff31da4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-03-24_4fe6ac7f3aa7690c523a4ae5dff31da4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-03-24_4fe6ac7f3aa7690c523a4ae5dff31da4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-03-24_4fe6ac7f3aa7690c523a4ae5dff31da4_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-03-24_4fe6ac7f3aa7690c523a4ae5dff31da4_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-03-24_4fe6ac7f3aa7690c523a4ae5dff31da4_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-03-24_4fe6ac7f3aa7690c523a4ae5dff31da4_wannacry.exe"
1⤵
- Drops file in Windows directory
PID:3032

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:2476

C:\Users\Admin\AppData\Local\Temp\2024-03-24_4fe6ac7f3aa7690c523a4ae5dff31da4_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-03-24_4fe6ac7f3aa7690c523a4ae5dff31da4_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2272

C:\Windows\System32\IME\SHARED\imebroker.exe
C:\Windows\System32\IME\SHARED\imebroker.exe -Embedding
1⤵
PID:1372

C:\Windows\System32\IME\IMEJP\imjpdct.exe
"C:\Windows\System32\IME\IMEJP\\imjpdct.exe" /backup create C:\Users\Admin\AppData\Roaming\Microsoft\IME\15.0\IMEJP\UserDict\imjp15cu.dic
1⤵
PID:4328

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

T1046

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\LRN36F3.tmp

Filesize
36KB

MD5
8bbba061b7b1e7edda7a30d5f8bc91a0

SHA1
581d633b1dfbb3f17e88a2335c82743f6aca22c2

SHA256
5687eec739a2c149ab47dd8bfa537b7cb9eac68e67996903c5edfc78611454d6

SHA512
5dfe3d8b3f9593b8b0ee0a2f9af182f6dc1d47be37887ba963679e5381c09e71e945a1da8bc79341b5b9ae892e93fdda511fa3c916768b43381d15f1a1b0ee18

Download Submit
C:\Users\Admin\AppData\Local\Temp\LRNFE2.tmp

Filesize
36KB

MD5
c26f3801d1d6865a68cf1ef846dfae01

SHA1
0299d7d1f35a26ed8cf18bd9eafe2d94a7c8cc00

SHA256
c3ab66e4c960d9c15ba844cf8a1466b5898ac661a4eeffbc411be9fc24bcf97e

SHA512
388c6ccb3fcd733c476bfc529a5d180f21a41185ad9576f9f720e83c0b23692a773c94acd19105cab874846d8282a3d73ce01610b0008ae29ad9e536b1b347cc

Download Submit
C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
3df2667ef94776eeb272a1404801f118

SHA1
0741698e6d3460284494b239bf6bac7d9e0d3a99

SHA256
891fa5f91382fd21322df4b0137f6c865d96fe376c88f6849592cd4942254520

SHA512
705921a25f6245e553358517a98996def0dcc878037f73bd332ee6ddd56cb208948b45a00ce42fbd94972e99a8959f44458dcf3669ac798625bfaec8fdaf6dc6

Download Submit