wannacry | 9e423dffb3f5b86c3d280f42ed34e18597fbb723416001eb8d00da8bb1eb9023

General

Target

2024-09-25_2e7484614664498519c4c75c82342328_wannacry.exe
Size

5.0MB
MD5

2e7484614664498519c4c75c82342328
SHA1

610416078590519a16d44683c595fdbf173dc27e
SHA256

9e423dffb3f5b86c3d280f42ed34e18597fbb723416001eb8d00da8bb1eb9023
SHA512

27a0ce7a4a9747f6cda08aa1cce04db56a259b9be58413df4bd6d8c5da530f2a859ce63ea06663d129a4cf8687f673e20088e99d816b827dd1c4748fb9a26ab1
SSDEEP

49152:XnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAAR0H:XDqPoBhz1aRxcSUDk36SAEa

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3229) 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
2020	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	2024-09-25_2e7484614664498519c4c75c82342328_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-25_2e7484614664498519c4c75c82342328_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	2024-09-25_2e7484614664498519c4c75c82342328_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-25_2e7484614664498519c4c75c82342328_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\Cookies\CachePrefix = "Cookie:"	2024-09-25_2e7484614664498519c4c75c82342328_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00e5000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-25_2e7484614664498519c4c75c82342328_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3247DA03-7135-4143-A1C6-E68F4A41A472}	2024-09-25_2e7484614664498519c4c75c82342328_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3247DA03-7135-4143-A1C6-E68F4A41A472}\WpadNetworkName = "Network 3"	2024-09-25_2e7484614664498519c4c75c82342328_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-38-5d-a2-de-36	2024-09-25_2e7484614664498519c4c75c82342328_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-25_2e7484614664498519c4c75c82342328_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-25_2e7484614664498519c4c75c82342328_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-25_2e7484614664498519c4c75c82342328_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-25_2e7484614664498519c4c75c82342328_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-38-5d-a2-de-36\WpadDecision = "0"	2024-09-25_2e7484614664498519c4c75c82342328_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-25_2e7484614664498519c4c75c82342328_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-25_2e7484614664498519c4c75c82342328_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-25_2e7484614664498519c4c75c82342328_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-25_2e7484614664498519c4c75c82342328_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-25_2e7484614664498519c4c75c82342328_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3247DA03-7135-4143-A1C6-E68F4A41A472}\ce-38-5d-a2-de-36	2024-09-25_2e7484614664498519c4c75c82342328_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-25_2e7484614664498519c4c75c82342328_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-25_2e7484614664498519c4c75c82342328_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-25_2e7484614664498519c4c75c82342328_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3247DA03-7135-4143-A1C6-E68F4A41A472}\WpadDecisionReason = "1"	2024-09-25_2e7484614664498519c4c75c82342328_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3247DA03-7135-4143-A1C6-E68F4A41A472}\WpadDecisionTime = c02a9bcf2c0fdb01	2024-09-25_2e7484614664498519c4c75c82342328_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{3247DA03-7135-4143-A1C6-E68F4A41A472}\WpadDecision = "0"	2024-09-25_2e7484614664498519c4c75c82342328_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-38-5d-a2-de-36\WpadDecisionReason = "1"	2024-09-25_2e7484614664498519c4c75c82342328_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ce-38-5d-a2-de-36\WpadDecisionTime = c02a9bcf2c0fdb01	2024-09-25_2e7484614664498519c4c75c82342328_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-25_2e7484614664498519c4c75c82342328_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-25_2e7484614664498519c4c75c82342328_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1880
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2020

C:\Users\Admin\AppData\Local\Temp\2024-09-25_2e7484614664498519c4c75c82342328_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-25_2e7484614664498519c4c75c82342328_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2572

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
edea1e38ca6b6503aeb55b27e8449dd4

SHA1
53204bebe7cf4b8925ba8b372c24fae54ec146dd

SHA256
5b64ffa10c32ffde49ce5f5b314a606ef19a1de3472accc9fd719323283796b7

SHA512
96955e5e178fc978a98c1c16d1e37c7d469f0d322ffe16af8437e5bb3261c65b8d1a06a7807a41fb624fd599220e97f24d110ea7563b775f3723f0567031d141

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Analysis

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