wannacry | 4e2dfb3b69c083af2bb1ba5d21f14a83545e408f37c7a90cfe295104c965f37c

General

Target

2024-10-12_d84e402c448fe7ab19e801ac40128efb_wannacry.exe
Size

3.6MB
MD5

d84e402c448fe7ab19e801ac40128efb
SHA1

d4c8a26e967a75358d9e2f77603a57ecf5fc144a
SHA256

4e2dfb3b69c083af2bb1ba5d21f14a83545e408f37c7a90cfe295104c965f37c
SHA512

92fd7088e691fc41d6108bf6929fee7189fbee8f181555d178d02544e3b3da0c40eff9006f97f21b4c10e1a43d6b189c74fb024a69b7fffa58e3fc88d0837c1a
SSDEEP

24576:XbLgddQhfdmMSirYbcMNgef0QeQjG/D8kIqRYoAdNLKz6626gmv:XnAQqMSPbcBVQej/1INRANv

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3337) 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
2796	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	2024-10-12_d84e402c448fe7ab19e801ac40128efb_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-12_d84e402c448fe7ab19e801ac40128efb_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	2024-10-12_d84e402c448fe7ab19e801ac40128efb_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_d84e402c448fe7ab19e801ac40128efb_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 = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_d84e402c448fe7ab19e801ac40128efb_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0121000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_d84e402c448fe7ab19e801ac40128efb_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{53BF6718-92A5-4F1A-8083-46CA22CF3C00}\WpadNetworkName = "Network 3"	2024-10-12_d84e402c448fe7ab19e801ac40128efb_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-3b-ff-8f-95-2c\WpadDecision = "0"	2024-10-12_d84e402c448fe7ab19e801ac40128efb_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{53BF6718-92A5-4F1A-8083-46CA22CF3C00}\WpadDecision = "0"	2024-10-12_d84e402c448fe7ab19e801ac40128efb_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-12_d84e402c448fe7ab19e801ac40128efb_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_d84e402c448fe7ab19e801ac40128efb_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-12_d84e402c448fe7ab19e801ac40128efb_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-12_d84e402c448fe7ab19e801ac40128efb_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{53BF6718-92A5-4F1A-8083-46CA22CF3C00}	2024-10-12_d84e402c448fe7ab19e801ac40128efb_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{53BF6718-92A5-4F1A-8083-46CA22CF3C00}\WpadDecisionTime = f081e126641cdb01	2024-10-12_d84e402c448fe7ab19e801ac40128efb_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-12_d84e402c448fe7ab19e801ac40128efb_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_d84e402c448fe7ab19e801ac40128efb_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-12_d84e402c448fe7ab19e801ac40128efb_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-3b-ff-8f-95-2c	2024-10-12_d84e402c448fe7ab19e801ac40128efb_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-3b-ff-8f-95-2c\WpadDecisionTime = f081e126641cdb01	2024-10-12_d84e402c448fe7ab19e801ac40128efb_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{53BF6718-92A5-4F1A-8083-46CA22CF3C00}\4a-3b-ff-8f-95-2c	2024-10-12_d84e402c448fe7ab19e801ac40128efb_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-3b-ff-8f-95-2c\WpadDecisionReason = "1"	2024-10-12_d84e402c448fe7ab19e801ac40128efb_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_d84e402c448fe7ab19e801ac40128efb_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-12_d84e402c448fe7ab19e801ac40128efb_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-12_d84e402c448fe7ab19e801ac40128efb_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-12_d84e402c448fe7ab19e801ac40128efb_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-12_d84e402c448fe7ab19e801ac40128efb_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{53BF6718-92A5-4F1A-8083-46CA22CF3C00}\WpadDecisionReason = "1"	2024-10-12_d84e402c448fe7ab19e801ac40128efb_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-12_d84e402c448fe7ab19e801ac40128efb_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_d84e402c448fe7ab19e801ac40128efb_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2932
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2796

C:\Users\Admin\AppData\Local\Temp\2024-10-12_d84e402c448fe7ab19e801ac40128efb_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_d84e402c448fe7ab19e801ac40128efb_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2676

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
3d521e924034ec4afa9d5f719d6b79e7

SHA1
a90745b6757882b3cc7243e69a1460f5c670055b

SHA256
099d7280d844310b12eb19a9c242872b8852f703e3c5f01a0e87d83ef355a69e

SHA512
5af6722e1add04d719e5e85f8af51ddceb4b98e7f169b61c2d98ddc80fa5e5ad2feb2dbf69306e83b81c80784a3c422903f1cf44c99a307afd58cb7ecf63ea51

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Analysis

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