wannacry | 5b2808345ab06d02c2b5194562e941696832b4dadef36d72753481f909613d1e

General

Target

50a304fcb6afbfeb58ffe10d125f8760_JaffaCakes118.exe
Size

3.6MB
MD5

50a304fcb6afbfeb58ffe10d125f8760
SHA1

466f32e13f101785bc1567091e22574ee8bc7a7e
SHA256

5b2808345ab06d02c2b5194562e941696832b4dadef36d72753481f909613d1e
SHA512

c823ee5be8ab8c138d2af24f40cd42a7debf25e40f708aaed1db4783dbfdc38c81e2f29e651d5ecc59dcb68319524f8087328e6a72f26f2c60a7825c6d53aa4b
SSDEEP

98304:XDqPoBhz1aRxcSUZk36SAEdhvxWa9P593R8yA:XDqPe1Cxc7k3ZAEUadzR8y

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3343) 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

2560 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
2560	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

50a304fcb6afbfeb58ffe10d125f8760_JaffaCakes118.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	50a304fcb6afbfeb58ffe10d125f8760_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

Processes:

50a304fcb6afbfeb58ffe10d125f8760_JaffaCakes118.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 50a304fcb6afbfeb58ffe10d125f8760_JaffaCakes118.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	50a304fcb6afbfeb58ffe10d125f8760_JaffaCakes118.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

50a304fcb6afbfeb58ffe10d125f8760_JaffaCakes118.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	50a304fcb6afbfeb58ffe10d125f8760_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f006e000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	50a304fcb6afbfeb58ffe10d125f8760_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6FB10310-E729-46B4-B3C2-2CAEC0CAA869}	50a304fcb6afbfeb58ffe10d125f8760_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6FB10310-E729-46B4-B3C2-2CAEC0CAA869}\WpadDecision = "0"	50a304fcb6afbfeb58ffe10d125f8760_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\22-12-5d-bf-ec-e6	50a304fcb6afbfeb58ffe10d125f8760_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	50a304fcb6afbfeb58ffe10d125f8760_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	50a304fcb6afbfeb58ffe10d125f8760_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	50a304fcb6afbfeb58ffe10d125f8760_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\22-12-5d-bf-ec-e6\WpadDecisionTime = c00b176e7fa8da01	50a304fcb6afbfeb58ffe10d125f8760_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\22-12-5d-bf-ec-e6\WpadDecision = "0"	50a304fcb6afbfeb58ffe10d125f8760_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6FB10310-E729-46B4-B3C2-2CAEC0CAA869}\22-12-5d-bf-ec-e6	50a304fcb6afbfeb58ffe10d125f8760_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	50a304fcb6afbfeb58ffe10d125f8760_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	50a304fcb6afbfeb58ffe10d125f8760_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	50a304fcb6afbfeb58ffe10d125f8760_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	50a304fcb6afbfeb58ffe10d125f8760_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6FB10310-E729-46B4-B3C2-2CAEC0CAA869}\WpadDecisionTime = c00b176e7fa8da01	50a304fcb6afbfeb58ffe10d125f8760_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6FB10310-E729-46B4-B3C2-2CAEC0CAA869}\WpadNetworkName = "Network 3"	50a304fcb6afbfeb58ffe10d125f8760_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	50a304fcb6afbfeb58ffe10d125f8760_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	50a304fcb6afbfeb58ffe10d125f8760_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	50a304fcb6afbfeb58ffe10d125f8760_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\22-12-5d-bf-ec-e6\WpadDecisionReason = "1"	50a304fcb6afbfeb58ffe10d125f8760_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	50a304fcb6afbfeb58ffe10d125f8760_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	50a304fcb6afbfeb58ffe10d125f8760_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6FB10310-E729-46B4-B3C2-2CAEC0CAA869}\WpadDecisionReason = "1"	50a304fcb6afbfeb58ffe10d125f8760_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\50a304fcb6afbfeb58ffe10d125f8760_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\50a304fcb6afbfeb58ffe10d125f8760_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
PID:2972

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:2560

C:\Users\Admin\AppData\Local\Temp\50a304fcb6afbfeb58ffe10d125f8760_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\50a304fcb6afbfeb58ffe10d125f8760_JaffaCakes118.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2548

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
8a5d04545f041821cf20f7bb8fbd0dfd

SHA1
d53fc72f755ca5b4a057f62aab9b8b450ee77ad0

SHA256
8080a4489a0743161907fa5c5c96a871da38f398b10b335ab51660867f397cb8

SHA512
db814c314e83010758943d76bf2f31f09c01b210e33113ef93d72823370fb767d10032b511dfa0e305490d8a3bddee63814b6c7b22365d471ea286b21ed40355

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