wannacry | 86bc73d7005d35907da21802c16ff60365e223ff79b201bba87215236f7bae2e

General

Target

2024-12-01_aa5b407f77eb30e9584b4670ac4604d4_wannacry.exe
Size

5.0MB
MD5

aa5b407f77eb30e9584b4670ac4604d4
SHA1

b403708856b662c687f65cd819165a37468ab763
SHA256

86bc73d7005d35907da21802c16ff60365e223ff79b201bba87215236f7bae2e
SHA512

181e3b283ca5eaadaf6e105aed6f2907f4da4c11e920b09fc34d9e7c3a0d9c213db9c018da089e224891be83e97b3bcf2fe59a38b549bdeca57e62d90cbd314e
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9GAMEcaEa:yDqPoBhz1aRxcSUDk36SAEdhvxWa9G5

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 (3328) 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
2012	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	2024-12-01_aa5b407f77eb30e9584b4670ac4604d4_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-12-01_aa5b407f77eb30e9584b4670ac4604d4_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	2024-12-01_aa5b407f77eb30e9584b4670ac4604d4_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-01_aa5b407f77eb30e9584b4670ac4604d4_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{91DCB10D-02F0-4FAA-9DE1-5F5E3625B9F5}	2024-12-01_aa5b407f77eb30e9584b4670ac4604d4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{91DCB10D-02F0-4FAA-9DE1-5F5E3625B9F5}\WpadDecisionReason = "1"	2024-12-01_aa5b407f77eb30e9584b4670ac4604d4_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{91DCB10D-02F0-4FAA-9DE1-5F5E3625B9F5}\WpadNetworkName = "Network 3"	2024-12-01_aa5b407f77eb30e9584b4670ac4604d4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-01_aa5b407f77eb30e9584b4670ac4604d4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-12-01_aa5b407f77eb30e9584b4670ac4604d4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-12-01_aa5b407f77eb30e9584b4670ac4604d4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-12-01_aa5b407f77eb30e9584b4670ac4604d4_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00dc000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-01_aa5b407f77eb30e9584b4670ac4604d4_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-98-81-79-bb-64\WpadDecisionTime = 60a1dc0eed43db01	2024-12-01_aa5b407f77eb30e9584b4670ac4604d4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-12-01_aa5b407f77eb30e9584b4670ac4604d4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-01_aa5b407f77eb30e9584b4670ac4604d4_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-12-01_aa5b407f77eb30e9584b4670ac4604d4_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-12-01_aa5b407f77eb30e9584b4670ac4604d4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-98-81-79-bb-64	2024-12-01_aa5b407f77eb30e9584b4670ac4604d4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{91DCB10D-02F0-4FAA-9DE1-5F5E3625B9F5}\3a-98-81-79-bb-64	2024-12-01_aa5b407f77eb30e9584b4670ac4604d4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-98-81-79-bb-64\WpadDecisionReason = "1"	2024-12-01_aa5b407f77eb30e9584b4670ac4604d4_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-01_aa5b407f77eb30e9584b4670ac4604d4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-12-01_aa5b407f77eb30e9584b4670ac4604d4_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-12-01_aa5b407f77eb30e9584b4670ac4604d4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{91DCB10D-02F0-4FAA-9DE1-5F5E3625B9F5}\WpadDecision = "0"	2024-12-01_aa5b407f77eb30e9584b4670ac4604d4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3a-98-81-79-bb-64\WpadDecision = "0"	2024-12-01_aa5b407f77eb30e9584b4670ac4604d4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-01_aa5b407f77eb30e9584b4670ac4604d4_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-01_aa5b407f77eb30e9584b4670ac4604d4_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{91DCB10D-02F0-4FAA-9DE1-5F5E3625B9F5}\WpadDecisionTime = 60a1dc0eed43db01	2024-12-01_aa5b407f77eb30e9584b4670ac4604d4_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-01_aa5b407f77eb30e9584b4670ac4604d4_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-01_aa5b407f77eb30e9584b4670ac4604d4_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2816
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2012

C:\Users\Admin\AppData\Local\Temp\2024-12-01_aa5b407f77eb30e9584b4670ac4604d4_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-01_aa5b407f77eb30e9584b4670ac4604d4_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2348

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

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
44f9296cc38e6967558f943967f4d6fe

SHA1
98b268fed5d57b6fdca5bf9e77d78b50695b1913

SHA256
a74dbf89ab86c4e52715599e1cc8fd454c460070567a05a31a192004b36efcf8

SHA512
29a1148ae6f72f7b7b528ed5efc7c79f52a4be496904e64b327f0b369ec81e6721c07a66a57259e1b5236b70ed59b21643f31f12343e1b9726eff68faf9b1d1d

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Analysis

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