wannacry | 451ef61eb01255686f9b1fddae48de775ca86debe73fc0d61edd9d75c2d3559f

General

Target

20240924451397223f679cdf2d124d4cb2b92375wannacry.exe
Size

5.0MB
MD5

451397223f679cdf2d124d4cb2b92375
SHA1

f4ebd900f995f8f1cf24eaca61380076938431ab
SHA256

451ef61eb01255686f9b1fddae48de775ca86debe73fc0d61edd9d75c2d3559f
SHA512

e895abefcc1657f67ae28b60cdff8f1bc4423026119274e53d488f5685e278d0d2c30c5c693e052f72d3d3ba0376c5c030227e2ceb9a41da2937b0028110a534
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAA:yDqPoBhz1aRxcSUDk36SA

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3331) 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
2608	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	20240924451397223f679cdf2d124d4cb2b92375wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	20240924451397223f679cdf2d124d4cb2b92375wannacry.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	20240924451397223f679cdf2d124d4cb2b92375wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	20240924451397223f679cdf2d124d4cb2b92375wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\42-f5-a9-2f-99-d2\WpadDecision = "0"	20240924451397223f679cdf2d124d4cb2b92375wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	20240924451397223f679cdf2d124d4cb2b92375wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	20240924451397223f679cdf2d124d4cb2b92375wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	20240924451397223f679cdf2d124d4cb2b92375wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	20240924451397223f679cdf2d124d4cb2b92375wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	20240924451397223f679cdf2d124d4cb2b92375wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	20240924451397223f679cdf2d124d4cb2b92375wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	20240924451397223f679cdf2d124d4cb2b92375wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00c3000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	20240924451397223f679cdf2d124d4cb2b92375wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{978A0C1C-F72B-41D5-94DA-3D54665318D8}	20240924451397223f679cdf2d124d4cb2b92375wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{978A0C1C-F72B-41D5-94DA-3D54665318D8}\WpadDecision = "0"	20240924451397223f679cdf2d124d4cb2b92375wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{978A0C1C-F72B-41D5-94DA-3D54665318D8}\WpadNetworkName = "Network 3"	20240924451397223f679cdf2d124d4cb2b92375wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\42-f5-a9-2f-99-d2\WpadDecisionReason = "1"	20240924451397223f679cdf2d124d4cb2b92375wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	20240924451397223f679cdf2d124d4cb2b92375wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	20240924451397223f679cdf2d124d4cb2b92375wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	20240924451397223f679cdf2d124d4cb2b92375wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{978A0C1C-F72B-41D5-94DA-3D54665318D8}\WpadDecisionReason = "1"	20240924451397223f679cdf2d124d4cb2b92375wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\42-f5-a9-2f-99-d2	20240924451397223f679cdf2d124d4cb2b92375wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\42-f5-a9-2f-99-d2\WpadDecisionTime = 103fb9bba50edb01	20240924451397223f679cdf2d124d4cb2b92375wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	20240924451397223f679cdf2d124d4cb2b92375wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	20240924451397223f679cdf2d124d4cb2b92375wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	20240924451397223f679cdf2d124d4cb2b92375wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{978A0C1C-F72B-41D5-94DA-3D54665318D8}\WpadDecisionTime = 103fb9bba50edb01	20240924451397223f679cdf2d124d4cb2b92375wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{978A0C1C-F72B-41D5-94DA-3D54665318D8}\42-f5-a9-2f-99-d2	20240924451397223f679cdf2d124d4cb2b92375wannacry.exe

C:\Users\Admin\AppData\Local\Temp\20240924451397223f679cdf2d124d4cb2b92375wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\20240924451397223f679cdf2d124d4cb2b92375wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2724
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2608

C:\Users\Admin\AppData\Local\Temp\20240924451397223f679cdf2d124d4cb2b92375wannacry.exe
C:\Users\Admin\AppData\Local\Temp\20240924451397223f679cdf2d124d4cb2b92375wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2892

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
dda19d185d24135d056385eddde66112

SHA1
5df4808a0486b77967524922649e418453eb28dc

SHA256
60e2e5ea3fb4c34e69571aa68c80ace8a365721954320765bae955744fe9e2d7

SHA512
ce0202f8f074d4b024e8963f5766ad60be509ac4ea2cb17697b620e551b1375d942554537a272a5c91687e3a19a3e6d8d94e483a61e9e7446b86d04214cd7ec2

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