wannacry | b3dfea531c87023e2a9dbeb6591a0da765e218432fc8703e352cfaa56c2d36c6

General

Target

2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe
Size

5.0MB
MD5

34bc4b258d570831737f598609bcccbc
SHA1

fdcd9c9a8726ee712753e9fd9152a0894f1c42cb
SHA256

b3dfea531c87023e2a9dbeb6591a0da765e218432fc8703e352cfaa56c2d36c6
SHA512

3f5e36ecdedc838603519618533c9adcc4c89047840381624341a0181a091bc45dc7a34686ae087ea170e10a7dca331ca1b4560d945798b1136809dcb214a4f6
SSDEEP

24576:2bLgddQhfdmMSirYbcMNgef0sX6SASk+RdhAdmv:2nAQqMSPbcBVQ6SAARdhnv

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3172) 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
2964	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	2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-11_34bc4b258d570831737f598609bcccbc_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	2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1e-ef-c9-45-da-c8\WpadDecision = "0"	2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00dd000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CA330F97-C3D9-4C35-ACDA-1C558BD07CE6}\WpadDecisionTime = 9006f4e0e11bdb01	2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1e-ef-c9-45-da-c8\WpadDecisionReason = "1"	2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CA330F97-C3D9-4C35-ACDA-1C558BD07CE6}\1e-ef-c9-45-da-c8	2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CA330F97-C3D9-4C35-ACDA-1C558BD07CE6}\WpadDecision = "0"	2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CA330F97-C3D9-4C35-ACDA-1C558BD07CE6}\WpadNetworkName = "Network 3"	2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1e-ef-c9-45-da-c8	2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CA330F97-C3D9-4C35-ACDA-1C558BD07CE6}	2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CA330F97-C3D9-4C35-ACDA-1C558BD07CE6}\WpadDecisionReason = "1"	2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1e-ef-c9-45-da-c8\WpadDecisionTime = 9006f4e0e11bdb01	2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2756
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2964

C:\Users\Admin\AppData\Local\Temp\2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-11_34bc4b258d570831737f598609bcccbc_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2616

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
828658a827c964a7a084d62427d1612d

SHA1
cd6dc753cecef588d9729cc30980fe6e1092392c

SHA256
478741f89aaa28d008b159e10296d771f34654ddc179a494a3dd9f94d365b8b6

SHA512
aeaf012657450eede6cdadffcebb808a727b592c6cd954eadb8dc29bbb860ee615bf3e1bebef2a9e530a274b902e91bcfa41e996ce0ba27d77fdad620a9b4544

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