wannacry | 43f914802e828bdc92afa83027961494cea3f39d16149a5c76acb330405ddc3f

General

Target

e8f15b2e6f0f9aa17464487ecb8c3939_JaffaCakes118.exe
Size

3.6MB
MD5

e8f15b2e6f0f9aa17464487ecb8c3939
SHA1

55ca67d41ad820326aa1cb4aa4780619654eb585
SHA256

43f914802e828bdc92afa83027961494cea3f39d16149a5c76acb330405ddc3f
SHA512

8717c7589303e802f456b4dfb913e6a614a8ed4577d518820c22e5dcd14f59a15406823bd4ee4cf7b36f595acdc819ca18c0da7e039af186670aad93241f1e5b
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQcbqeuEwI:yDqPoBhz1aRxcSUDkxNuEwI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3254) 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

pid	Process
2164	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

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	e8f15b2e6f0f9aa17464487ecb8c3939_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	e8f15b2e6f0f9aa17464487ecb8c3939_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e8f15b2e6f0f9aa17464487ecb8c3939_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e8f15b2e6f0f9aa17464487ecb8c3939_JaffaCakes118.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3e-82-68-88-c9-da\WpadDecisionReason = "1"	e8f15b2e6f0f9aa17464487ecb8c3939_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3e-82-68-88-c9-da\WpadDecisionTime = c054ddb5b709db01	e8f15b2e6f0f9aa17464487ecb8c3939_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	e8f15b2e6f0f9aa17464487ecb8c3939_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	e8f15b2e6f0f9aa17464487ecb8c3939_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	e8f15b2e6f0f9aa17464487ecb8c3939_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	e8f15b2e6f0f9aa17464487ecb8c3939_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	e8f15b2e6f0f9aa17464487ecb8c3939_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{898F114D-7C97-486E-9A14-B59BE9EE1443}\WpadDecisionTime = c054ddb5b709db01	e8f15b2e6f0f9aa17464487ecb8c3939_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{898F114D-7C97-486E-9A14-B59BE9EE1443}\WpadDecision = "0"	e8f15b2e6f0f9aa17464487ecb8c3939_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3e-82-68-88-c9-da	e8f15b2e6f0f9aa17464487ecb8c3939_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	e8f15b2e6f0f9aa17464487ecb8c3939_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	e8f15b2e6f0f9aa17464487ecb8c3939_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	e8f15b2e6f0f9aa17464487ecb8c3939_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	e8f15b2e6f0f9aa17464487ecb8c3939_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	e8f15b2e6f0f9aa17464487ecb8c3939_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	e8f15b2e6f0f9aa17464487ecb8c3939_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	e8f15b2e6f0f9aa17464487ecb8c3939_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{898F114D-7C97-486E-9A14-B59BE9EE1443}	e8f15b2e6f0f9aa17464487ecb8c3939_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{898F114D-7C97-486E-9A14-B59BE9EE1443}\WpadDecisionReason = "1"	e8f15b2e6f0f9aa17464487ecb8c3939_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{898F114D-7C97-486E-9A14-B59BE9EE1443}\WpadNetworkName = "Network 3"	e8f15b2e6f0f9aa17464487ecb8c3939_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	e8f15b2e6f0f9aa17464487ecb8c3939_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00f5000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	e8f15b2e6f0f9aa17464487ecb8c3939_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{898F114D-7C97-486E-9A14-B59BE9EE1443}\3e-82-68-88-c9-da	e8f15b2e6f0f9aa17464487ecb8c3939_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3e-82-68-88-c9-da\WpadDecision = "0"	e8f15b2e6f0f9aa17464487ecb8c3939_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\e8f15b2e6f0f9aa17464487ecb8c3939_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e8f15b2e6f0f9aa17464487ecb8c3939_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:868
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2164

C:\Users\Admin\AppData\Local\Temp\e8f15b2e6f0f9aa17464487ecb8c3939_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\e8f15b2e6f0f9aa17464487ecb8c3939_JaffaCakes118.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2332

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
0ac08ee38e7d39ee7e3d90f573ad5d8f

SHA1
9e59f5beec0f2fedc275b6d7a9a60315d48e2cde

SHA256
d02a2876429e039e08b74fd02007803343fa2b1f284b2674319d4286fb9ec20d

SHA512
088ffba0dcaa89a81f01cccebd87755d152fbc43e702ac69325953ea5701894d77922e46a4e7c857b9a5aa2cbdfc4a42624075b926e4e8339f6d9400e522ea04

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