wannacry | 082441ea5f4f003e79494710cddd5671749e8532c8405f953f77e13a50aa5dc3

General

Target

b2bad8becadd8510577b89d9f7c99cd7_JaffaCakes118.exe
Size

3.6MB
MD5

b2bad8becadd8510577b89d9f7c99cd7
SHA1

6d7f2a1028d40bb513270ef618a3dacbe4776a90
SHA256

082441ea5f4f003e79494710cddd5671749e8532c8405f953f77e13a50aa5dc3
SHA512

ce65e3aab4b978a85606ef36a706a89ecd29c996f83f3f9ce158fc3da2eed5d884edbf8873a86e028cffafd01319d53567fdc92a83ad00d2bee3fc5c6d2ecbc8
SSDEEP

98304:yD0kPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2HI:yD0kPe1Cxcxk3ZAEUadzR8yc4HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3125) 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

2660 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
2660	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

b2bad8becadd8510577b89d9f7c99cd7_JaffaCakes118.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	b2bad8becadd8510577b89d9f7c99cd7_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

Processes:

b2bad8becadd8510577b89d9f7c99cd7_JaffaCakes118.exe

description ioc process

File created C:\WINDOWS\tasksche.exe b2bad8becadd8510577b89d9f7c99cd7_JaffaCakes118.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	b2bad8becadd8510577b89d9f7c99cd7_JaffaCakes118.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

b2bad8becadd8510577b89d9f7c99cd7_JaffaCakes118.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	b2bad8becadd8510577b89d9f7c99cd7_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	b2bad8becadd8510577b89d9f7c99cd7_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	b2bad8becadd8510577b89d9f7c99cd7_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{67CF2435-589E-4286-B957-87CFD716836C}\WpadDecisionReason = "1"	b2bad8becadd8510577b89d9f7c99cd7_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-98-dd-7c-fc-6d	b2bad8becadd8510577b89d9f7c99cd7_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	b2bad8becadd8510577b89d9f7c99cd7_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{67CF2435-589E-4286-B957-87CFD716836C}\WpadDecision = "0"	b2bad8becadd8510577b89d9f7c99cd7_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-98-dd-7c-fc-6d\WpadDecision = "0"	b2bad8becadd8510577b89d9f7c99cd7_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	b2bad8becadd8510577b89d9f7c99cd7_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	b2bad8becadd8510577b89d9f7c99cd7_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	b2bad8becadd8510577b89d9f7c99cd7_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	b2bad8becadd8510577b89d9f7c99cd7_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	b2bad8becadd8510577b89d9f7c99cd7_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0140000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	b2bad8becadd8510577b89d9f7c99cd7_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{67CF2435-589E-4286-B957-87CFD716836C}\WpadDecisionTime = 60d8df8ccdbfda01	b2bad8becadd8510577b89d9f7c99cd7_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{67CF2435-589E-4286-B957-87CFD716836C}\4a-98-dd-7c-fc-6d	b2bad8becadd8510577b89d9f7c99cd7_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	b2bad8becadd8510577b89d9f7c99cd7_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	b2bad8becadd8510577b89d9f7c99cd7_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	b2bad8becadd8510577b89d9f7c99cd7_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{67CF2435-589E-4286-B957-87CFD716836C}	b2bad8becadd8510577b89d9f7c99cd7_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{67CF2435-589E-4286-B957-87CFD716836C}\WpadNetworkName = "Network 3"	b2bad8becadd8510577b89d9f7c99cd7_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-98-dd-7c-fc-6d\WpadDecisionReason = "1"	b2bad8becadd8510577b89d9f7c99cd7_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-98-dd-7c-fc-6d\WpadDecisionTime = 60d8df8ccdbfda01	b2bad8becadd8510577b89d9f7c99cd7_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	b2bad8becadd8510577b89d9f7c99cd7_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\b2bad8becadd8510577b89d9f7c99cd7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b2bad8becadd8510577b89d9f7c99cd7_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
PID:2360

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:2660

C:\Users\Admin\AppData\Local\Temp\b2bad8becadd8510577b89d9f7c99cd7_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\b2bad8becadd8510577b89d9f7c99cd7_JaffaCakes118.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2104

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
f7e73d7c7050c27fcf95bdea86572c0d

SHA1
c285498116706515df84223cd9ea9a2dde485fe9

SHA256
560a73b61f33681877077d828093f2ab90a65de743cdb304be4303fc747297ab

SHA512
9e5849232d41621cf19141f0923b3d9d583fb9bd1bddd66a209d40a89dec2dbbdff8544e38da7524dc3387ff6b84635d17bb2c01f394fb42787c807b7d8c6051

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