wannacry | 85302b209ba37ac7483d9c015e850562af91a60f9577db5830b607104f328726

General

Target

2024-10-12_7421effaa49f120c8beea4f9936d87d8_wannacry.exe
Size

3.6MB
MD5

7421effaa49f120c8beea4f9936d87d8
SHA1

9463f656544132b9fb16235ed5977b7c5394f7ce
SHA256

85302b209ba37ac7483d9c015e850562af91a60f9577db5830b607104f328726
SHA512

eef29f37e6336c9a5379fa4bce6067ec0e7747d4f944317220e34df3eb29c4e6c48869400401ff1a3c926a39700244ad46b90742cafa72fbc9d302fb2d2c113d
SSDEEP

98304:ZDqPoBhz1aRxcSUDkWx7QY83EKx1eKOCXcn:ZDqPe1CxcxkA7j83PxISXcn

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3228) 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
2948	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_7421effaa49f120c8beea4f9936d87d8_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-12_7421effaa49f120c8beea4f9936d87d8_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_7421effaa49f120c8beea4f9936d87d8_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_7421effaa49f120c8beea4f9936d87d8_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-12_7421effaa49f120c8beea4f9936d87d8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-12_7421effaa49f120c8beea4f9936d87d8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{82A1A887-DA0A-4256-8EE7-29F4DEEC4B20}\WpadDecision = "0"	2024-10-12_7421effaa49f120c8beea4f9936d87d8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4e-39-18-8b-85-e3	2024-10-12_7421effaa49f120c8beea4f9936d87d8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{82A1A887-DA0A-4256-8EE7-29F4DEEC4B20}\4e-39-18-8b-85-e3	2024-10-12_7421effaa49f120c8beea4f9936d87d8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4e-39-18-8b-85-e3\WpadDecision = "0"	2024-10-12_7421effaa49f120c8beea4f9936d87d8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_7421effaa49f120c8beea4f9936d87d8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_7421effaa49f120c8beea4f9936d87d8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-12_7421effaa49f120c8beea4f9936d87d8_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-12_7421effaa49f120c8beea4f9936d87d8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{82A1A887-DA0A-4256-8EE7-29F4DEEC4B20}\WpadDecisionReason = "1"	2024-10-12_7421effaa49f120c8beea4f9936d87d8_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{82A1A887-DA0A-4256-8EE7-29F4DEEC4B20}\WpadNetworkName = "Network 3"	2024-10-12_7421effaa49f120c8beea4f9936d87d8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4e-39-18-8b-85-e3\WpadDecisionReason = "1"	2024-10-12_7421effaa49f120c8beea4f9936d87d8_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-12_7421effaa49f120c8beea4f9936d87d8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_7421effaa49f120c8beea4f9936d87d8_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-12_7421effaa49f120c8beea4f9936d87d8_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-12_7421effaa49f120c8beea4f9936d87d8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{82A1A887-DA0A-4256-8EE7-29F4DEEC4B20}	2024-10-12_7421effaa49f120c8beea4f9936d87d8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{82A1A887-DA0A-4256-8EE7-29F4DEEC4B20}\WpadDecisionTime = 5015d7d0581cdb01	2024-10-12_7421effaa49f120c8beea4f9936d87d8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4e-39-18-8b-85-e3\WpadDecisionTime = 5015d7d0581cdb01	2024-10-12_7421effaa49f120c8beea4f9936d87d8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_7421effaa49f120c8beea4f9936d87d8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-12_7421effaa49f120c8beea4f9936d87d8_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-12_7421effaa49f120c8beea4f9936d87d8_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0087000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_7421effaa49f120c8beea4f9936d87d8_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-12_7421effaa49f120c8beea4f9936d87d8_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_7421effaa49f120c8beea4f9936d87d8_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2796
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2948

C:\Users\Admin\AppData\Local\Temp\2024-10-12_7421effaa49f120c8beea4f9936d87d8_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_7421effaa49f120c8beea4f9936d87d8_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2812

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
23a7477cfc59a613471d698c46ca7345

SHA1
b8ee0366e853acd48a27ded7ad5c834ecf6f1927

SHA256
e4f4d5272f442d7abee7bd9bfd478766e7a81afc2f4959edbe61f60136cb2a24

SHA512
9693e5f2cd4f563589479b768b98011b6768b8dcfc897479ba4010caff60c634e50c772b0dcfeefe13f41c0b015e48f74d8ebd2c6a0b4e30202d7047acbd5358

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