wannacry | d361c887689a145acff8cb6a432af86a48a199861797bdf05ca62b324f1519b3

General

Target

e6550103a7fdd68938fbe3139287b9ff_JaffaCakes118.exe
Size

3.6MB
MD5

e6550103a7fdd68938fbe3139287b9ff
SHA1

90a72896d4c2ba39c12c58e29d308ebc681c1586
SHA256

d361c887689a145acff8cb6a432af86a48a199861797bdf05ca62b324f1519b3
SHA512

35d5aaf40415dd4cc603420635327c7cb00cfed6780953ce0986307f92c892e1cc80823115403236402df6537216d1d3b0b57c24fa1c491b10d3ec459f3c2c23
SSDEEP

49152:2nAQqMSPbcBVJ6SAARdhnvxJM0H9PAMEc:yDqPoBf6SAEdhvxWa9P5

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3175) 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
2168	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	e6550103a7fdd68938fbe3139287b9ff_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	e6550103a7fdd68938fbe3139287b9ff_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	e6550103a7fdd68938fbe3139287b9ff_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e6550103a7fdd68938fbe3139287b9ff_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\{89B5C84D-E062-40FF-AAE5-6DE8DF79703D}\WpadDecision = "0"	e6550103a7fdd68938fbe3139287b9ff_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{89B5C84D-E062-40FF-AAE5-6DE8DF79703D}\WpadNetworkName = "Network 3"	e6550103a7fdd68938fbe3139287b9ff_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	e6550103a7fdd68938fbe3139287b9ff_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f016d000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	e6550103a7fdd68938fbe3139287b9ff_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{89B5C84D-E062-40FF-AAE5-6DE8DF79703D}	e6550103a7fdd68938fbe3139287b9ff_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{89B5C84D-E062-40FF-AAE5-6DE8DF79703D}\WpadDecisionTime = 70f215c9d308db01	e6550103a7fdd68938fbe3139287b9ff_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	e6550103a7fdd68938fbe3139287b9ff_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	e6550103a7fdd68938fbe3139287b9ff_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9a-95-27-8d-8c-6b\WpadDecisionReason = "1"	e6550103a7fdd68938fbe3139287b9ff_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9a-95-27-8d-8c-6b\WpadDecision = "0"	e6550103a7fdd68938fbe3139287b9ff_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	e6550103a7fdd68938fbe3139287b9ff_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	e6550103a7fdd68938fbe3139287b9ff_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	e6550103a7fdd68938fbe3139287b9ff_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	e6550103a7fdd68938fbe3139287b9ff_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	e6550103a7fdd68938fbe3139287b9ff_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	e6550103a7fdd68938fbe3139287b9ff_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	e6550103a7fdd68938fbe3139287b9ff_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	e6550103a7fdd68938fbe3139287b9ff_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9a-95-27-8d-8c-6b	e6550103a7fdd68938fbe3139287b9ff_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{89B5C84D-E062-40FF-AAE5-6DE8DF79703D}\9a-95-27-8d-8c-6b	e6550103a7fdd68938fbe3139287b9ff_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\9a-95-27-8d-8c-6b\WpadDecisionTime = 70f215c9d308db01	e6550103a7fdd68938fbe3139287b9ff_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	e6550103a7fdd68938fbe3139287b9ff_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	e6550103a7fdd68938fbe3139287b9ff_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{89B5C84D-E062-40FF-AAE5-6DE8DF79703D}\WpadDecisionReason = "1"	e6550103a7fdd68938fbe3139287b9ff_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\e6550103a7fdd68938fbe3139287b9ff_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e6550103a7fdd68938fbe3139287b9ff_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2552
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2168

C:\Users\Admin\AppData\Local\Temp\e6550103a7fdd68938fbe3139287b9ff_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\e6550103a7fdd68938fbe3139287b9ff_JaffaCakes118.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1900

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

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
79b93fbfd8c16c1dcd070db1bf3f6c18

SHA1
ef03d963bfbe6b1a1f698f0a9b618a00eea134d0

SHA256
a3c2def31a9dcba9aab81ef83b78d12b21f87f20b1d7a114e135ad7e76d13015

SHA512
38b2febc9412e8eb4246e9a4f3d55db2b5eeb728fa46e7164ab9d6d7a896f9a514ae8816c986cf91c432c71d3e6233b9e19e2be3f8c4291cce0595eb2480de92

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