wannacry | adcdeacf4ba66dc2fb9f4e26d9e6167cfd01d4add6b41064f370a831915c83f0

General

Target

2024-01-25_bfed7447d3070f698181854af4f2b387_wannacry.exe
Size

5.0MB
MD5

bfed7447d3070f698181854af4f2b387
SHA1

eb02006c0226d82c5a6f7653101f5f2f3a6ff707
SHA256

adcdeacf4ba66dc2fb9f4e26d9e6167cfd01d4add6b41064f370a831915c83f0
SHA512

1394a7ace398467f8af54b1514f8995da14c058d9d15e11205e775d63df7195dfec42a72a142d612df8569a388e6ffcbf3223c14a12dc2e775e6b56a3b5c89f6
SSDEEP

98304:yDBPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2H:yDBPe1Cxcxk3ZAEUadzR8yc4H

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3261) amount of remote hosts 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

2748 tasksche.exe
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

pid	process
2748	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

2024-01-25_bfed7447d3070f698181854af4f2b387_wannacry.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-01-25_bfed7447d3070f698181854af4f2b387_wannacry.exe

Drops file in Windows directory 1 IoCs

Processes:

2024-01-25_bfed7447d3070f698181854af4f2b387_wannacry.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 2024-01-25_bfed7447d3070f698181854af4f2b387_wannacry.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	2024-01-25_bfed7447d3070f698181854af4f2b387_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

2024-01-25_bfed7447d3070f698181854af4f2b387_wannacry.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-01-25_bfed7447d3070f698181854af4f2b387_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0059000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-01-25_bfed7447d3070f698181854af4f2b387_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A65D612D-B865-499B-B432-40928A0C9F48}	2024-01-25_bfed7447d3070f698181854af4f2b387_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\82-f5-4c-84-8c-9c	2024-01-25_bfed7447d3070f698181854af4f2b387_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\82-f5-4c-84-8c-9c\WpadDecisionTime = 70460f37af4fda01	2024-01-25_bfed7447d3070f698181854af4f2b387_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-01-25_bfed7447d3070f698181854af4f2b387_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-01-25_bfed7447d3070f698181854af4f2b387_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-01-25_bfed7447d3070f698181854af4f2b387_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-01-25_bfed7447d3070f698181854af4f2b387_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A65D612D-B865-499B-B432-40928A0C9F48}\WpadDecisionReason = "1"	2024-01-25_bfed7447d3070f698181854af4f2b387_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A65D612D-B865-499B-B432-40928A0C9F48}\WpadDecision = "0"	2024-01-25_bfed7447d3070f698181854af4f2b387_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A65D612D-B865-499B-B432-40928A0C9F48}\WpadNetworkName = "Network 3"	2024-01-25_bfed7447d3070f698181854af4f2b387_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\82-f5-4c-84-8c-9c\WpadDecision = "0"	2024-01-25_bfed7447d3070f698181854af4f2b387_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-01-25_bfed7447d3070f698181854af4f2b387_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-01-25_bfed7447d3070f698181854af4f2b387_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-01-25_bfed7447d3070f698181854af4f2b387_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-01-25_bfed7447d3070f698181854af4f2b387_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-01-25_bfed7447d3070f698181854af4f2b387_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-01-25_bfed7447d3070f698181854af4f2b387_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A65D612D-B865-499B-B432-40928A0C9F48}\WpadDecisionTime = 70460f37af4fda01	2024-01-25_bfed7447d3070f698181854af4f2b387_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-01-25_bfed7447d3070f698181854af4f2b387_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A65D612D-B865-499B-B432-40928A0C9F48}\82-f5-4c-84-8c-9c	2024-01-25_bfed7447d3070f698181854af4f2b387_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\82-f5-4c-84-8c-9c\WpadDecisionReason = "1"	2024-01-25_bfed7447d3070f698181854af4f2b387_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-01-25_bfed7447d3070f698181854af4f2b387_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-01-25_bfed7447d3070f698181854af4f2b387_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-25_bfed7447d3070f698181854af4f2b387_wannacry.exe"
1⤵
- Drops file in Windows directory
PID:2128

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:2748

C:\Users\Admin\AppData\Local\Temp\2024-01-25_bfed7447d3070f698181854af4f2b387_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-01-25_bfed7447d3070f698181854af4f2b387_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:3064

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

2

T1046

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe
Filesize
3.4MB

MD5
c383ee387de5a35c9eb2ebe9248649c1

SHA1
c2967ff698eb1339ae25f0ae33e9e6d5f0a9a00c

SHA256
c99dbe928592637503df5dfe2a813744f30561e987186a42d7cc85f7f1b0ac26

SHA512
98306be37a016779ca7c813dd9af6f13fd6877f07898209f8ee51be22359c0d3c38873d344bed3117ea452a9e53c31ea22304e072096fe5da60e8e64c679fa49

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