wannacry | 6fdb4494afddec42d262dff876703aabefca1409a155f32fbbdfd06e1a1ca825

General

Target

2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe
Size

5.0MB
MD5

4ff3f603a2807a13becf199870911787
SHA1

92d193208747e7dfbfa1fee1954ed6f9b56a7069
SHA256

6fdb4494afddec42d262dff876703aabefca1409a155f32fbbdfd06e1a1ca825
SHA512

b7c6b62ee3a99291d4269036e1d501266bda0ca0191a9ebc4b187e9695baab4382a8a66ef3b01e04590a8b0cbb7c44dd72d5faab729f15afcb4cccfdc8656fe5
SSDEEP

24576:2bLgddQhfdmMSirYbcMNgef0QeQjGAYoAdNLKz662:2nAQqMSPbcBVQejAINR

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Wannacry family
wannacry
Contacts a large (3259) 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
2236	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	2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.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	2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.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 = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00d8000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BDDA5BCB-22AC-481C-B24F-6431BBB149C8}\WpadDecision = "0"	2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BDDA5BCB-22AC-481C-B24F-6431BBB149C8}\02-0c-2e-ae-c1-ed	2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\02-0c-2e-ae-c1-ed\WpadDecisionReason = "1"	2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\02-0c-2e-ae-c1-ed\WpadDecisionTime = a035d636ae32db01	2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\02-0c-2e-ae-c1-ed\WpadDecision = "0"	2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BDDA5BCB-22AC-481C-B24F-6431BBB149C8}\WpadDecisionReason = "1"	2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\02-0c-2e-ae-c1-ed	2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BDDA5BCB-22AC-481C-B24F-6431BBB149C8}\WpadNetworkName = "Network 3"	2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BDDA5BCB-22AC-481C-B24F-6431BBB149C8}	2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BDDA5BCB-22AC-481C-B24F-6431BBB149C8}\WpadDecisionTime = a035d636ae32db01	2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1840
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2236

C:\Users\Admin\AppData\Local\Temp\2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-09_4ff3f603a2807a13becf199870911787_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2116

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
e4a1a5e1c878479fce265c2dc76bc2a9

SHA1
405630c435abe5e0ac796bd417b1e45d19a48cf6

SHA256
f6b579e760ffcac40b6f8cbe07e95aeae9481f4830563bbb8e0868c80f9c4e3f

SHA512
fdc178115c1eeefa6f25f08998b8e9c47646fdc283527a2731f33db0666ffe9461a79d23dc5f9f0a33e9f3c397f0a0c8288df957240a8d6c5af8bbbc968164da

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