wannacry | 1d72724d62dd1ee9bdfcacdc28bc4d236686c34c85982e67378b8720b97c37b1

General

Target

c19d57ee32fd207d897e8191eaa90e51_JaffaCakes118.exe
Size

3.6MB
MD5

c19d57ee32fd207d897e8191eaa90e51
SHA1

8a49494f42ec388e39bcd7331802aa5068a23b27
SHA256

1d72724d62dd1ee9bdfcacdc28bc4d236686c34c85982e67378b8720b97c37b1
SHA512

30676e174244418a7608a0de7e0d36727da58eb96299e398bec5426e706031e5e3317eee3d4effd8964f0b4ef665c049933ff6636ef7a682cb4bcded4e94cdbf
SSDEEP

12288:GvbLgPlu+QhMbaIMu7L5NVErCA4z2g6rTcbckPU82900Ve7zw+K+D/2qEEgEO6S5:2bLgddQhfdmMSirYbcMNgef0OPO6LL

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3329) 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
2772	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	c19d57ee32fd207d897e8191eaa90e51_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	c19d57ee32fd207d897e8191eaa90e51_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	c19d57ee32fd207d897e8191eaa90e51_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c19d57ee32fd207d897e8191eaa90e51_JaffaCakes118.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	c19d57ee32fd207d897e8191eaa90e51_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	c19d57ee32fd207d897e8191eaa90e51_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	c19d57ee32fd207d897e8191eaa90e51_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	c19d57ee32fd207d897e8191eaa90e51_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	c19d57ee32fd207d897e8191eaa90e51_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CE0DE308-37D1-4200-A46D-AD1F9E59DC62}\d6-88-9e-d1-03-ca	c19d57ee32fd207d897e8191eaa90e51_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d6-88-9e-d1-03-ca\WpadDecisionTime = 5003d91535f7da01	c19d57ee32fd207d897e8191eaa90e51_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	c19d57ee32fd207d897e8191eaa90e51_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CE0DE308-37D1-4200-A46D-AD1F9E59DC62}	c19d57ee32fd207d897e8191eaa90e51_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	c19d57ee32fd207d897e8191eaa90e51_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	c19d57ee32fd207d897e8191eaa90e51_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	c19d57ee32fd207d897e8191eaa90e51_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	c19d57ee32fd207d897e8191eaa90e51_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	c19d57ee32fd207d897e8191eaa90e51_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	c19d57ee32fd207d897e8191eaa90e51_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0191000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	c19d57ee32fd207d897e8191eaa90e51_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CE0DE308-37D1-4200-A46D-AD1F9E59DC62}\WpadDecision = "0"	c19d57ee32fd207d897e8191eaa90e51_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CE0DE308-37D1-4200-A46D-AD1F9E59DC62}\WpadNetworkName = "Network 3"	c19d57ee32fd207d897e8191eaa90e51_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d6-88-9e-d1-03-ca	c19d57ee32fd207d897e8191eaa90e51_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d6-88-9e-d1-03-ca\WpadDecisionReason = "1"	c19d57ee32fd207d897e8191eaa90e51_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\d6-88-9e-d1-03-ca\WpadDecision = "0"	c19d57ee32fd207d897e8191eaa90e51_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	c19d57ee32fd207d897e8191eaa90e51_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CE0DE308-37D1-4200-A46D-AD1F9E59DC62}\WpadDecisionReason = "1"	c19d57ee32fd207d897e8191eaa90e51_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CE0DE308-37D1-4200-A46D-AD1F9E59DC62}\WpadDecisionTime = 5003d91535f7da01	c19d57ee32fd207d897e8191eaa90e51_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\c19d57ee32fd207d897e8191eaa90e51_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c19d57ee32fd207d897e8191eaa90e51_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1960
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2772

C:\Users\Admin\AppData\Local\Temp\c19d57ee32fd207d897e8191eaa90e51_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\c19d57ee32fd207d897e8191eaa90e51_JaffaCakes118.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2756

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
5e572d58bbe9a11bac1b7416069864d4

SHA1
9aabb7fe71c3a849faa03345b0d2092465fe609c

SHA256
11066c41cf37ab0844560e5113e95f80f8c11538b704514f8ee0829e5f120dc0

SHA512
922b5870c7bb35d7fbc95371c5d39d122b5b8065da1156eb1081eac98fd563e1646b3bb75bb2fda924925c1ff78643a20330b7b4d4466b7ecbd859e5256dd96e

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