wannacry | 514544e1684c25779095d056d24c546466e57fa917bd6125bc41e57e1c12a5a6

General

Target

bed76392724158c77c8d7728282ce1f3_JaffaCakes118.exe
Size

3.6MB
MD5

bed76392724158c77c8d7728282ce1f3
SHA1

985d62b15711627ff871de1e6d605f1aafbfc932
SHA256

514544e1684c25779095d056d24c546466e57fa917bd6125bc41e57e1c12a5a6
SHA512

13d4ac2bf79dae27a63d5f88bc085c0cb69624f88ccd14cdd59cd111f7c734e981999e322292f3fa9f5c58990dc6eccafb664e3c80d4a416087dbd85bb724ba6
SSDEEP

12288:GvbLgPlu+QhMbaIMu7L5NVErCA4z2g6rTcbckPU82:2bLgddQhfdmMSirYbcM

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3240) 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
2428	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	bed76392724158c77c8d7728282ce1f3_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	bed76392724158c77c8d7728282ce1f3_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	bed76392724158c77c8d7728282ce1f3_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bed76392724158c77c8d7728282ce1f3_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 = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00a0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	bed76392724158c77c8d7728282ce1f3_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1A2448A5-ACE8-4665-BAFD-CF18ADC0F018}\WpadDecisionReason = "1"	bed76392724158c77c8d7728282ce1f3_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1A2448A5-ACE8-4665-BAFD-CF18ADC0F018}\5a-f8-83-de-84-5f	bed76392724158c77c8d7728282ce1f3_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	bed76392724158c77c8d7728282ce1f3_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	bed76392724158c77c8d7728282ce1f3_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	bed76392724158c77c8d7728282ce1f3_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	bed76392724158c77c8d7728282ce1f3_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	bed76392724158c77c8d7728282ce1f3_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	bed76392724158c77c8d7728282ce1f3_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	bed76392724158c77c8d7728282ce1f3_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1A2448A5-ACE8-4665-BAFD-CF18ADC0F018}\WpadDecision = "0"	bed76392724158c77c8d7728282ce1f3_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	bed76392724158c77c8d7728282ce1f3_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1A2448A5-ACE8-4665-BAFD-CF18ADC0F018}	bed76392724158c77c8d7728282ce1f3_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5a-f8-83-de-84-5f	bed76392724158c77c8d7728282ce1f3_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5a-f8-83-de-84-5f\WpadDecisionTime = 007f294436f6da01	bed76392724158c77c8d7728282ce1f3_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	bed76392724158c77c8d7728282ce1f3_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1A2448A5-ACE8-4665-BAFD-CF18ADC0F018}\WpadDecisionTime = 007f294436f6da01	bed76392724158c77c8d7728282ce1f3_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1A2448A5-ACE8-4665-BAFD-CF18ADC0F018}\WpadNetworkName = "Network 3"	bed76392724158c77c8d7728282ce1f3_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5a-f8-83-de-84-5f\WpadDecisionReason = "1"	bed76392724158c77c8d7728282ce1f3_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	bed76392724158c77c8d7728282ce1f3_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	bed76392724158c77c8d7728282ce1f3_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	bed76392724158c77c8d7728282ce1f3_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	bed76392724158c77c8d7728282ce1f3_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5a-f8-83-de-84-5f\WpadDecision = "0"	bed76392724158c77c8d7728282ce1f3_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\bed76392724158c77c8d7728282ce1f3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\bed76392724158c77c8d7728282ce1f3_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1628
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2428

C:\Users\Admin\AppData\Local\Temp\bed76392724158c77c8d7728282ce1f3_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\bed76392724158c77c8d7728282ce1f3_JaffaCakes118.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2568

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
ccfd19ef9e2fca98300968622099d151

SHA1
0c443c0bb4f069a26db9fa78d6900740c4d884f3

SHA256
e083db3f1ef87ad8930588acf2a7246305978d51e638ea5180fffb744ed9b5e2

SHA512
44ac5051561631c72533c6d86dc155fd2a81388814f9cea85b23541990486be88759207b68016325a7ca0b9dd43f3eedd79c9dbb04d9a4e0d0481d05476e9e49

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