wannacry | e1c13dd22dbf283dee4953f9164c1ad0f4de3565b9960a1acb848c7b11fbe83a

General

Target

2025-02-04_f9944b431ce2fb4a7df756d05e84bd7d_wannacry.exe
Size

5.0MB
MD5

f9944b431ce2fb4a7df756d05e84bd7d
SHA1

71f23ac5efcb9d5452ab5b52f6f9995714877bdf
SHA256

e1c13dd22dbf283dee4953f9164c1ad0f4de3565b9960a1acb848c7b11fbe83a
SHA512

0ad5d535d2909f53b8b4d6ea16d076e1c0a3b7ff93daab3c40f68508c4f9f2614a06b17564315691d768079ede5d301efcc48bbe9a07faddfbc5ec9d628090b8
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhrxWa9D+GF:yDqPe1Cxcxk3ZAEwatF

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 (3285) 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
2812	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	2025-02-04_f9944b431ce2fb4a7df756d05e84bd7d_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-02-04_f9944b431ce2fb4a7df756d05e84bd7d_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	2025-02-04_f9944b431ce2fb4a7df756d05e84bd7d_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-04_f9944b431ce2fb4a7df756d05e84bd7d_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\History\CachePrefix = "Visited:"	2025-02-04_f9944b431ce2fb4a7df756d05e84bd7d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-02-04_f9944b431ce2fb4a7df756d05e84bd7d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C2977FCC-CD39-4F65-BC64-FD7272B86C6B}\WpadNetworkName = "Network 3"	2025-02-04_f9944b431ce2fb4a7df756d05e84bd7d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-3b-20-cc-81-66\WpadDecisionTime = a092c0e0fa76db01	2025-02-04_f9944b431ce2fb4a7df756d05e84bd7d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-02-04_f9944b431ce2fb4a7df756d05e84bd7d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-02-04_f9944b431ce2fb4a7df756d05e84bd7d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-02-04_f9944b431ce2fb4a7df756d05e84bd7d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-02-04_f9944b431ce2fb4a7df756d05e84bd7d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C2977FCC-CD39-4F65-BC64-FD7272B86C6B}\WpadDecision = "0"	2025-02-04_f9944b431ce2fb4a7df756d05e84bd7d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-3b-20-cc-81-66	2025-02-04_f9944b431ce2fb4a7df756d05e84bd7d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-04_f9944b431ce2fb4a7df756d05e84bd7d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C2977FCC-CD39-4F65-BC64-FD7272B86C6B}	2025-02-04_f9944b431ce2fb4a7df756d05e84bd7d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C2977FCC-CD39-4F65-BC64-FD7272B86C6B}\WpadDecisionReason = "1"	2025-02-04_f9944b431ce2fb4a7df756d05e84bd7d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C2977FCC-CD39-4F65-BC64-FD7272B86C6B}\WpadDecisionTime = a092c0e0fa76db01	2025-02-04_f9944b431ce2fb4a7df756d05e84bd7d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{C2977FCC-CD39-4F65-BC64-FD7272B86C6B}\96-3b-20-cc-81-66	2025-02-04_f9944b431ce2fb4a7df756d05e84bd7d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-3b-20-cc-81-66\WpadDecisionReason = "1"	2025-02-04_f9944b431ce2fb4a7df756d05e84bd7d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-04_f9944b431ce2fb4a7df756d05e84bd7d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-02-04_f9944b431ce2fb4a7df756d05e84bd7d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-02-04_f9944b431ce2fb4a7df756d05e84bd7d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0160000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-04_f9944b431ce2fb4a7df756d05e84bd7d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-04_f9944b431ce2fb4a7df756d05e84bd7d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-04_f9944b431ce2fb4a7df756d05e84bd7d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-02-04_f9944b431ce2fb4a7df756d05e84bd7d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-3b-20-cc-81-66\WpadDecision = "0"	2025-02-04_f9944b431ce2fb4a7df756d05e84bd7d_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-02-04_f9944b431ce2fb4a7df756d05e84bd7d_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-04_f9944b431ce2fb4a7df756d05e84bd7d_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2216
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2812

C:\Users\Admin\AppData\Local\Temp\2025-02-04_f9944b431ce2fb4a7df756d05e84bd7d_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-02-04_f9944b431ce2fb4a7df756d05e84bd7d_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2684

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
59582b75b303eb2fb36e4b141bee0b9a

SHA1
2428094a4f4f323a10a4d2aa7aa277f797aff23f

SHA256
048824b852b134e6bf0e1ff1c8df1f368b131aea7468509f35a32d72cbb5f4e2

SHA512
feaa81074a69a3ab2d69774f95404fecd18473feca398b4e43ef2e2c3cebbe9411b9509ecafd91bddabd71de97923ec9be0a9fcf59911e0ad4601ad9a9f8ce82

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Analysis

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