wannacry | e3fd4837e0f9c694476d7e238099b27066a31ce585dc3e2d05dd2eafe18880cf

General

Target

10ffef63dc7a3e0ce02ec7a0302d1b6d_JaffaCakes118.exe
Size

3.6MB
MD5

10ffef63dc7a3e0ce02ec7a0302d1b6d
SHA1

ddfd3467e7d8eefe6ae0773ec3c2cfa0899ca255
SHA256

e3fd4837e0f9c694476d7e238099b27066a31ce585dc3e2d05dd2eafe18880cf
SHA512

f1de1d54a2d06e273e8155ae92309ee2357723229a62932554e6df302403afa67a2bee9dc061d0cdbeb13d1618e43a9a63c2a192c4918cc4455db3e856fc482d
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAd593R8yAVp2HI:yDqPe1Cxcxk3ZAdzR8yc4HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3221) 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

2684 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
2684	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

10ffef63dc7a3e0ce02ec7a0302d1b6d_JaffaCakes118.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	10ffef63dc7a3e0ce02ec7a0302d1b6d_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

Processes:

10ffef63dc7a3e0ce02ec7a0302d1b6d_JaffaCakes118.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 10ffef63dc7a3e0ce02ec7a0302d1b6d_JaffaCakes118.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	10ffef63dc7a3e0ce02ec7a0302d1b6d_JaffaCakes118.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

10ffef63dc7a3e0ce02ec7a0302d1b6d_JaffaCakes118.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ee-4a-90-9c-11-bc	10ffef63dc7a3e0ce02ec7a0302d1b6d_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	10ffef63dc7a3e0ce02ec7a0302d1b6d_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	10ffef63dc7a3e0ce02ec7a0302d1b6d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	10ffef63dc7a3e0ce02ec7a0302d1b6d_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	10ffef63dc7a3e0ce02ec7a0302d1b6d_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B9ECBF1B-8F11-491E-8771-8158E9B31F54}\WpadDecisionReason = "1"	10ffef63dc7a3e0ce02ec7a0302d1b6d_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B9ECBF1B-8F11-491E-8771-8158E9B31F54}\WpadDecisionTime = f04af78c7b9dda01	10ffef63dc7a3e0ce02ec7a0302d1b6d_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ee-4a-90-9c-11-bc\WpadDecisionReason = "1"	10ffef63dc7a3e0ce02ec7a0302d1b6d_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ee-4a-90-9c-11-bc\WpadDecisionTime = f04af78c7b9dda01	10ffef63dc7a3e0ce02ec7a0302d1b6d_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	10ffef63dc7a3e0ce02ec7a0302d1b6d_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	10ffef63dc7a3e0ce02ec7a0302d1b6d_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	10ffef63dc7a3e0ce02ec7a0302d1b6d_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	10ffef63dc7a3e0ce02ec7a0302d1b6d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	10ffef63dc7a3e0ce02ec7a0302d1b6d_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B9ECBF1B-8F11-491E-8771-8158E9B31F54}\WpadDecision = "0"	10ffef63dc7a3e0ce02ec7a0302d1b6d_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ee-4a-90-9c-11-bc\WpadDecision = "0"	10ffef63dc7a3e0ce02ec7a0302d1b6d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	10ffef63dc7a3e0ce02ec7a0302d1b6d_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B9ECBF1B-8F11-491E-8771-8158E9B31F54}\ee-4a-90-9c-11-bc	10ffef63dc7a3e0ce02ec7a0302d1b6d_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	10ffef63dc7a3e0ce02ec7a0302d1b6d_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	10ffef63dc7a3e0ce02ec7a0302d1b6d_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	10ffef63dc7a3e0ce02ec7a0302d1b6d_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f003d000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	10ffef63dc7a3e0ce02ec7a0302d1b6d_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B9ECBF1B-8F11-491E-8771-8158E9B31F54}	10ffef63dc7a3e0ce02ec7a0302d1b6d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B9ECBF1B-8F11-491E-8771-8158E9B31F54}\WpadNetworkName = "Network 3"	10ffef63dc7a3e0ce02ec7a0302d1b6d_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\10ffef63dc7a3e0ce02ec7a0302d1b6d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\10ffef63dc7a3e0ce02ec7a0302d1b6d_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
PID:2740

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:2684

C:\Users\Admin\AppData\Local\Temp\10ffef63dc7a3e0ce02ec7a0302d1b6d_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\10ffef63dc7a3e0ce02ec7a0302d1b6d_JaffaCakes118.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2316

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
1e3b4a99db0b565bafecfa70eb3465ad

SHA1
4c39e3d690f08e5f0b3dcdb1a61038a61c0dd9f3

SHA256
64da98abf4fb68313b4240654f524644562fcf21ef55f3263b330a4ae5b6c251

SHA512
0395c1c737037e77c637064fa777e99a9ee47e0fb634d406d91af30e58f06428f1359d65621dc5945cd82a83cb152d851b291ec0af3323beff26772308215489

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