wannacry | dbfcf91942e2a5bb977eba577ef3814a0a86726b1def254081254cf367dfb889

General

Target

c967291110370026941a2ca733c93d8c_JaffaCakes118.exe
Size

3.6MB
MD5

c967291110370026941a2ca733c93d8c
SHA1

82180e9cc14a56d131580b6d18cd91f571394c34
SHA256

dbfcf91942e2a5bb977eba577ef3814a0a86726b1def254081254cf367dfb889
SHA512

6d48b94d8c29233737163a746338b8be6e547519cff0301e8dca59e7e091c7e28abd6216dd714d8fdd1aac59962356ba8c65822a23a3214b2ce7d806543e4649
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAA+Eau3R8yAH1plA:yDqPoBhz1aRxcSUDk36SAw3R8yAVp2

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3236) 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
2760	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	c967291110370026941a2ca733c93d8c_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	c967291110370026941a2ca733c93d8c_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	c967291110370026941a2ca733c93d8c_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c967291110370026941a2ca733c93d8c_JaffaCakes118.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	c967291110370026941a2ca733c93d8c_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	c967291110370026941a2ca733c93d8c_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	c967291110370026941a2ca733c93d8c_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	c967291110370026941a2ca733c93d8c_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{83911FBC-500A-4491-8D70-7B1595728210}\WpadDecision = "0"	c967291110370026941a2ca733c93d8c_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-17-37-bf-92-4e\WpadDecisionReason = "1"	c967291110370026941a2ca733c93d8c_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	c967291110370026941a2ca733c93d8c_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	c967291110370026941a2ca733c93d8c_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	c967291110370026941a2ca733c93d8c_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	c967291110370026941a2ca733c93d8c_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	c967291110370026941a2ca733c93d8c_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	c967291110370026941a2ca733c93d8c_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{83911FBC-500A-4491-8D70-7B1595728210}	c967291110370026941a2ca733c93d8c_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{83911FBC-500A-4491-8D70-7B1595728210}\WpadDecisionReason = "1"	c967291110370026941a2ca733c93d8c_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{83911FBC-500A-4491-8D70-7B1595728210}\WpadNetworkName = "Network 3"	c967291110370026941a2ca733c93d8c_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-17-37-bf-92-4e\WpadDecisionTime = 9043364a43fada01	c967291110370026941a2ca733c93d8c_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	c967291110370026941a2ca733c93d8c_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	c967291110370026941a2ca733c93d8c_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f007b000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	c967291110370026941a2ca733c93d8c_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-17-37-bf-92-4e	c967291110370026941a2ca733c93d8c_JaffaCakes118.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{83911FBC-500A-4491-8D70-7B1595728210}\16-17-37-bf-92-4e	c967291110370026941a2ca733c93d8c_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	c967291110370026941a2ca733c93d8c_JaffaCakes118.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{83911FBC-500A-4491-8D70-7B1595728210}\WpadDecisionTime = 9043364a43fada01	c967291110370026941a2ca733c93d8c_JaffaCakes118.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-17-37-bf-92-4e\WpadDecision = "0"	c967291110370026941a2ca733c93d8c_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\c967291110370026941a2ca733c93d8c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c967291110370026941a2ca733c93d8c_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2584
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2760

C:\Users\Admin\AppData\Local\Temp\c967291110370026941a2ca733c93d8c_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\c967291110370026941a2ca733c93d8c_JaffaCakes118.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2724

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
542607065b901fe836936a56bf584a9a

SHA1
731cebf86e50af4be7fa1d4e294507e2d59b2a61

SHA256
34dfcbc0eece14ec0b79c093a66efe1c5e3647689bd0368205370a81e9f817fd

SHA512
982db46cb4a43eed670e9130b64fc928efd2947546e10b79d2f35f6b526e432fa7b4a04854daea1d1ac41fd1365fc1f7bc738c54bd7b437f6ff494e37c308c99

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Analysis

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