wannacry | 032100a8f8ec17c0b2a6603b937b89fd35e37a4e3fa80a84474dbfd46431bbdc

General

Target

2024-12-21_545a86f9acd10665a02b9e10eda08753_wannacry.exe
Size

5.0MB
MD5

545a86f9acd10665a02b9e10eda08753
SHA1

f891834a67a5af27761aadc4de5b465ad20eb0f3
SHA256

032100a8f8ec17c0b2a6603b937b89fd35e37a4e3fa80a84474dbfd46431bbdc
SHA512

e0d6ddd7f547386e9d89c934e5fea5dd51ac57a302c5b0bd64710e19a185f973dd4391100f9b559ec8277e08f8346835c087d36ed75ac3a648347f5d4c41a4d8
SSDEEP

49152:+nFQeMSPbcBVQkINRx+TSqTdX1HkQo6SAARdhnvP:qeePoBpaRxcSUDk36SAEdhvP

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 (3325) 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
4048	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 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE	2024-12-21_545a86f9acd10665a02b9e10eda08753_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies	2024-12-21_545a86f9acd10665a02b9e10eda08753_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5	2024-12-21_545a86f9acd10665a02b9e10eda08753_wannacry.exe
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5	2024-12-21_545a86f9acd10665a02b9e10eda08753_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-12-21_545a86f9acd10665a02b9e10eda08753_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	2024-12-21_545a86f9acd10665a02b9e10eda08753_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-21_545a86f9acd10665a02b9e10eda08753_wannacry.exe

Modifies data under HKEY_USERS 15 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P	2024-12-21_545a86f9acd10665a02b9e10eda08753_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-12-21_545a86f9acd10665a02b9e10eda08753_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P\History	2024-12-21_545a86f9acd10665a02b9e10eda08753_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows	2024-12-21_545a86f9acd10665a02b9e10eda08753_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-21_545a86f9acd10665a02b9e10eda08753_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-12-21_545a86f9acd10665a02b9e10eda08753_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-12-21_545a86f9acd10665a02b9e10eda08753_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	2024-12-21_545a86f9acd10665a02b9e10eda08753_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	2024-12-21_545a86f9acd10665a02b9e10eda08753_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion	2024-12-21_545a86f9acd10665a02b9e10eda08753_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-12-21_545a86f9acd10665a02b9e10eda08753_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-21_545a86f9acd10665a02b9e10eda08753_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-12-21_545a86f9acd10665a02b9e10eda08753_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-12-21_545a86f9acd10665a02b9e10eda08753_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-12-21_545a86f9acd10665a02b9e10eda08753_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-21_545a86f9acd10665a02b9e10eda08753_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-21_545a86f9acd10665a02b9e10eda08753_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:4400
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:4048

C:\Users\Admin\AppData\Local\Temp\2024-12-21_545a86f9acd10665a02b9e10eda08753_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-21_545a86f9acd10665a02b9e10eda08753_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:4812

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
f60456ca994aa8e6fc6ef608566c0a22

SHA1
a5171b805fabe3bc8a468623a801eaafef8b5bfc

SHA256
a7f579d367067c69231558f8d691586b4d7ebc2ea1385f704365a4e7c86674c7

SHA512
bc9c9d843df67651e6a0ded8f5b52ce530f944eba53636f6c6fac87a7a5485931b54d2e23824bd06ef11230c5c1f57c2f87c879bb2cd67890270a43f8ad8764e

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Analysis

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