wannacry | 871880c55af41d17b5eb105e1c6f6d870e0ee586c1de26568cb9ab5bd2c18930

General

Target

ef349bde935e74a03f4ef0ff72d2addd_JaffaCakes118.exe
Size

3.6MB
MD5

ef349bde935e74a03f4ef0ff72d2addd
SHA1

c5a111da3023d071c8a6aa48e04fe180d0c9ec1f
SHA256

871880c55af41d17b5eb105e1c6f6d870e0ee586c1de26568cb9ab5bd2c18930
SHA512

85366d2cef39942687fd661f6d0e3eee9eb7f602c5560747a1672b57584e98bc6e45f1733b4fba5e3e6becf3fc4b7d135cef9140580e4ae025b27c624d3a541e
SSDEEP

49152:XnAQqMSPbcBVQej/f//9GUq66xSXr+aAGsAjaC:XDqPoBhzVGuXAGfT

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3246) 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
2972	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	ef349bde935e74a03f4ef0ff72d2addd_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	ef349bde935e74a03f4ef0ff72d2addd_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	ef349bde935e74a03f4ef0ff72d2addd_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ef349bde935e74a03f4ef0ff72d2addd_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\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	ef349bde935e74a03f4ef0ff72d2addd_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	ef349bde935e74a03f4ef0ff72d2addd_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	ef349bde935e74a03f4ef0ff72d2addd_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C38A7C33-C812-4E71-BCA9-2E32D765537B}\WpadDecisionReason = "1"	ef349bde935e74a03f4ef0ff72d2addd_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-26-4b-38-02-0f	ef349bde935e74a03f4ef0ff72d2addd_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C38A7C33-C812-4E71-BCA9-2E32D765537B}\da-26-4b-38-02-0f	ef349bde935e74a03f4ef0ff72d2addd_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	ef349bde935e74a03f4ef0ff72d2addd_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	ef349bde935e74a03f4ef0ff72d2addd_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	ef349bde935e74a03f4ef0ff72d2addd_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	ef349bde935e74a03f4ef0ff72d2addd_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	ef349bde935e74a03f4ef0ff72d2addd_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	ef349bde935e74a03f4ef0ff72d2addd_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	ef349bde935e74a03f4ef0ff72d2addd_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C38A7C33-C812-4E71-BCA9-2E32D765537B}	ef349bde935e74a03f4ef0ff72d2addd_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C38A7C33-C812-4E71-BCA9-2E32D765537B}\WpadDecision = "0"	ef349bde935e74a03f4ef0ff72d2addd_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-26-4b-38-02-0f\WpadDecisionTime = 209f9cd8ec0bdb01	ef349bde935e74a03f4ef0ff72d2addd_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	ef349bde935e74a03f4ef0ff72d2addd_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	ef349bde935e74a03f4ef0ff72d2addd_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-26-4b-38-02-0f\WpadDecision = "0"	ef349bde935e74a03f4ef0ff72d2addd_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C38A7C33-C812-4E71-BCA9-2E32D765537B}\WpadDecisionTime = 209f9cd8ec0bdb01	ef349bde935e74a03f4ef0ff72d2addd_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C38A7C33-C812-4E71-BCA9-2E32D765537B}\WpadNetworkName = "Network 3"	ef349bde935e74a03f4ef0ff72d2addd_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\da-26-4b-38-02-0f\WpadDecisionReason = "1"	ef349bde935e74a03f4ef0ff72d2addd_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	ef349bde935e74a03f4ef0ff72d2addd_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00aa000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	ef349bde935e74a03f4ef0ff72d2addd_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\ef349bde935e74a03f4ef0ff72d2addd_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ef349bde935e74a03f4ef0ff72d2addd_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2264
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2972

C:\Users\Admin\AppData\Local\Temp\ef349bde935e74a03f4ef0ff72d2addd_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\ef349bde935e74a03f4ef0ff72d2addd_JaffaCakes118.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2816

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
93566316e66b9f501e94bb173af3e74b

SHA1
fbaac0344b735275924fd8b0e0cb9ef908c0e960

SHA256
4ed839e650553f9ea21e1bb4bcf23cac8df72ba64b0f122729e2dfd1c1678ce5

SHA512
d87991941135dd42b502d7ac547089b80198c389e8fbd170ae8ab18348880c1729bc7ad5890a72e71137201349f932dbd260f1220cb8d3201332140a0b3911dc

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Analysis

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