wannacry | f081a587288c538b76566a71dd4c7aab25fa2d724881df4706090321f3d930b0

General

Target

2025-02-17_c9c3c671d3c6d2e1194d5a1b9fff66ad_wannacry.exe
Size

5.0MB
MD5

c9c3c671d3c6d2e1194d5a1b9fff66ad
SHA1

c20d66c211f8d8e70a83911d5964200be2874033
SHA256

f081a587288c538b76566a71dd4c7aab25fa2d724881df4706090321f3d930b0
SHA512

af250165d90e33f84825afcc561c4efa3200af90c410334516efb342a17b20142d374791f35183246a2730eda502657eff259d55affc30180cf96b6bfaf00ba3
SSDEEP

49152:XnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAAU:XDqPoBhz1aRxcSUDk36SAB

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 (3251) 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
2832	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	2025-02-17_c9c3c671d3c6d2e1194d5a1b9fff66ad_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-02-17_c9c3c671d3c6d2e1194d5a1b9fff66ad_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	2025-02-17_c9c3c671d3c6d2e1194d5a1b9fff66ad_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-17_c9c3c671d3c6d2e1194d5a1b9fff66ad_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-4a-10-6d-38-f1\WpadDecisionTime = a04722975f81db01	2025-02-17_c9c3c671d3c6d2e1194d5a1b9fff66ad_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-17_c9c3c671d3c6d2e1194d5a1b9fff66ad_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-02-17_c9c3c671d3c6d2e1194d5a1b9fff66ad_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B13A0A5D-F127-431A-B55F-75BB7957AF75}\WpadDecisionTime = a04722975f81db01	2025-02-17_c9c3c671d3c6d2e1194d5a1b9fff66ad_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f009d000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-17_c9c3c671d3c6d2e1194d5a1b9fff66ad_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-4a-10-6d-38-f1	2025-02-17_c9c3c671d3c6d2e1194d5a1b9fff66ad_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-4a-10-6d-38-f1\WpadDecisionReason = "1"	2025-02-17_c9c3c671d3c6d2e1194d5a1b9fff66ad_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\52-4a-10-6d-38-f1\WpadDecision = "0"	2025-02-17_c9c3c671d3c6d2e1194d5a1b9fff66ad_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-02-17_c9c3c671d3c6d2e1194d5a1b9fff66ad_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-02-17_c9c3c671d3c6d2e1194d5a1b9fff66ad_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-02-17_c9c3c671d3c6d2e1194d5a1b9fff66ad_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-02-17_c9c3c671d3c6d2e1194d5a1b9fff66ad_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B13A0A5D-F127-431A-B55F-75BB7957AF75}\WpadDecisionReason = "1"	2025-02-17_c9c3c671d3c6d2e1194d5a1b9fff66ad_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B13A0A5D-F127-431A-B55F-75BB7957AF75}\WpadDecision = "0"	2025-02-17_c9c3c671d3c6d2e1194d5a1b9fff66ad_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B13A0A5D-F127-431A-B55F-75BB7957AF75}\WpadNetworkName = "Network 2"	2025-02-17_c9c3c671d3c6d2e1194d5a1b9fff66ad_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-17_c9c3c671d3c6d2e1194d5a1b9fff66ad_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-17_c9c3c671d3c6d2e1194d5a1b9fff66ad_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-02-17_c9c3c671d3c6d2e1194d5a1b9fff66ad_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-02-17_c9c3c671d3c6d2e1194d5a1b9fff66ad_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B13A0A5D-F127-431A-B55F-75BB7957AF75}	2025-02-17_c9c3c671d3c6d2e1194d5a1b9fff66ad_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B13A0A5D-F127-431A-B55F-75BB7957AF75}\52-4a-10-6d-38-f1	2025-02-17_c9c3c671d3c6d2e1194d5a1b9fff66ad_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-02-17_c9c3c671d3c6d2e1194d5a1b9fff66ad_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-17_c9c3c671d3c6d2e1194d5a1b9fff66ad_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-02-17_c9c3c671d3c6d2e1194d5a1b9fff66ad_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-02-17_c9c3c671d3c6d2e1194d5a1b9fff66ad_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-17_c9c3c671d3c6d2e1194d5a1b9fff66ad_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1728
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2832

C:\Users\Admin\AppData\Local\Temp\2025-02-17_c9c3c671d3c6d2e1194d5a1b9fff66ad_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-02-17_c9c3c671d3c6d2e1194d5a1b9fff66ad_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2792

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
76d06d2096fe49ac97c2bf21709bbba4

SHA1
a7df08006ceafb441271c615c2e1d67218ba81a1

SHA256
945f2bb56bfef539d0404194bb7a7ac1f79b2307c33c8b196078c7b16bba098c

SHA512
b29a68783506989f55eaf6bf160ab285f4579e62e8ca01ad9ef3f4cfd460832a703641a52332a4880b3f8e5d5a63cde897776dd2756b9b9e930280e8dcfd0031

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