wannacry | 7af6d06c865c2a175b1ed4f5ccc8b482b236095796a2d73e40c53875d6723c81

General

Target

2024-12-12_0404db3d545ee16964912acc829de536_wannacry.exe
Size

3.6MB
MD5

0404db3d545ee16964912acc829de536
SHA1

29fcd48b5ea234ca1179c2327ed0c66579fd6572
SHA256

7af6d06c865c2a175b1ed4f5ccc8b482b236095796a2d73e40c53875d6723c81
SHA512

4b1f55e72a9bcb4cfaeb8fa0d1fbe316c99236d4449d0fd0a3016b5dfaa86097d91144678c8f3bbff58fedc418fc6e84503a8a1ce4444fecfaf1b7e3d60c3346
SSDEEP

12288:GebLgPlu+QhMbaIMu7L5NVErCA45J98kDsqRejlkmnxk6PdJDjm+Oaq:XbLgddQhfdmMSN8kIqRYoAdNLK

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 (3254) 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
2604	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	2024-12-12_0404db3d545ee16964912acc829de536_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-12-12_0404db3d545ee16964912acc829de536_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	2024-12-12_0404db3d545ee16964912acc829de536_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-12_0404db3d545ee16964912acc829de536_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-12-12_0404db3d545ee16964912acc829de536_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-12-12_0404db3d545ee16964912acc829de536_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-9b-24-b5-e1-c8	2024-12-12_0404db3d545ee16964912acc829de536_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-12_0404db3d545ee16964912acc829de536_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-12_0404db3d545ee16964912acc829de536_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-12-12_0404db3d545ee16964912acc829de536_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0107000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-12_0404db3d545ee16964912acc829de536_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{953238C1-3374-47FD-ABFA-F1138ADEC9E6}\96-9b-24-b5-e1-c8	2024-12-12_0404db3d545ee16964912acc829de536_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-9b-24-b5-e1-c8\WpadDecisionTime = c051930aa44cdb01	2024-12-12_0404db3d545ee16964912acc829de536_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-12-12_0404db3d545ee16964912acc829de536_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{953238C1-3374-47FD-ABFA-F1138ADEC9E6}\WpadDecisionReason = "1"	2024-12-12_0404db3d545ee16964912acc829de536_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-12_0404db3d545ee16964912acc829de536_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-12_0404db3d545ee16964912acc829de536_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-12-12_0404db3d545ee16964912acc829de536_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-12_0404db3d545ee16964912acc829de536_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-12-12_0404db3d545ee16964912acc829de536_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-12-12_0404db3d545ee16964912acc829de536_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{953238C1-3374-47FD-ABFA-F1138ADEC9E6}\WpadDecision = "0"	2024-12-12_0404db3d545ee16964912acc829de536_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{953238C1-3374-47FD-ABFA-F1138ADEC9E6}\WpadNetworkName = "Network 3"	2024-12-12_0404db3d545ee16964912acc829de536_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-12-12_0404db3d545ee16964912acc829de536_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{953238C1-3374-47FD-ABFA-F1138ADEC9E6}	2024-12-12_0404db3d545ee16964912acc829de536_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{953238C1-3374-47FD-ABFA-F1138ADEC9E6}\WpadDecisionTime = c051930aa44cdb01	2024-12-12_0404db3d545ee16964912acc829de536_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-9b-24-b5-e1-c8\WpadDecisionReason = "1"	2024-12-12_0404db3d545ee16964912acc829de536_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-9b-24-b5-e1-c8\WpadDecision = "0"	2024-12-12_0404db3d545ee16964912acc829de536_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-12_0404db3d545ee16964912acc829de536_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-12_0404db3d545ee16964912acc829de536_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2784
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2604

C:\Users\Admin\AppData\Local\Temp\2024-12-12_0404db3d545ee16964912acc829de536_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-12_0404db3d545ee16964912acc829de536_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2268

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
ea934f2cfa5c68b9984864f43e5ccf70

SHA1
2f411c3320236e3867f0024da18b71497571d1bb

SHA256
097006fd42a09eb1fcebc6106f88ca783698149ad8668d54544055e5289dca32

SHA512
35e154aa299dc4f6e96fc51d5ebbe97affd5a7e481e9530d2040d82df39322abe22d01e846838f885b176363e20a1da7ea4c333ddb63eb38109759fb280ca6e7

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