wannacry | e8421e44bed3983aa1a15a88379efc9d68182c4071c1d7773a3c1d9b0173f1af

General

Target

2024-12-15_99b98e57e4e4f29a1d22a51adee69558_wannacry.exe
Size

3.6MB
MD5

99b98e57e4e4f29a1d22a51adee69558
SHA1

63ee2b023790110e22905538a98a58639df565d0
SHA256

e8421e44bed3983aa1a15a88379efc9d68182c4071c1d7773a3c1d9b0173f1af
SHA512

df5abe3153e69738d53d6b4e73b885fbf35b494993f06ff598fa6c42d0c7edf918c04b1a6b69a84ce48810224b77217b6b25884d855ce11c5422409e1b93bd10
SSDEEP

24576:XbLgddQhfdmMSN8kIqRYoAdNLKSs2dycv1Z2zgq:XnAQqMSnIN3s2dycv188q

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 (3161) 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
2160	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	2024-12-15_99b98e57e4e4f29a1d22a51adee69558_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-12-15_99b98e57e4e4f29a1d22a51adee69558_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	2024-12-15_99b98e57e4e4f29a1d22a51adee69558_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-15_99b98e57e4e4f29a1d22a51adee69558_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-15_99b98e57e4e4f29a1d22a51adee69558_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-15_99b98e57e4e4f29a1d22a51adee69558_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-15_99b98e57e4e4f29a1d22a51adee69558_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-12-15_99b98e57e4e4f29a1d22a51adee69558_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-12-15_99b98e57e4e4f29a1d22a51adee69558_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2a-32-9e-d0-1a-54\WpadDecision = "0"	2024-12-15_99b98e57e4e4f29a1d22a51adee69558_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-15_99b98e57e4e4f29a1d22a51adee69558_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B38C8B49-BDBA-47BF-B43A-94B4616EC183}\WpadNetworkName = "Network 3"	2024-12-15_99b98e57e4e4f29a1d22a51adee69558_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2a-32-9e-d0-1a-54\WpadDecisionTime = c0f07ff9cc4edb01	2024-12-15_99b98e57e4e4f29a1d22a51adee69558_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-12-15_99b98e57e4e4f29a1d22a51adee69558_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-12-15_99b98e57e4e4f29a1d22a51adee69558_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-15_99b98e57e4e4f29a1d22a51adee69558_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-12-15_99b98e57e4e4f29a1d22a51adee69558_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-12-15_99b98e57e4e4f29a1d22a51adee69558_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B38C8B49-BDBA-47BF-B43A-94B4616EC183}\WpadDecisionReason = "1"	2024-12-15_99b98e57e4e4f29a1d22a51adee69558_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B38C8B49-BDBA-47BF-B43A-94B4616EC183}\WpadDecisionTime = c0f07ff9cc4edb01	2024-12-15_99b98e57e4e4f29a1d22a51adee69558_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B38C8B49-BDBA-47BF-B43A-94B4616EC183}\WpadDecision = "0"	2024-12-15_99b98e57e4e4f29a1d22a51adee69558_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2a-32-9e-d0-1a-54	2024-12-15_99b98e57e4e4f29a1d22a51adee69558_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B38C8B49-BDBA-47BF-B43A-94B4616EC183}\2a-32-9e-d0-1a-54	2024-12-15_99b98e57e4e4f29a1d22a51adee69558_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2a-32-9e-d0-1a-54\WpadDecisionReason = "1"	2024-12-15_99b98e57e4e4f29a1d22a51adee69558_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-12-15_99b98e57e4e4f29a1d22a51adee69558_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-12-15_99b98e57e4e4f29a1d22a51adee69558_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f017e000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-15_99b98e57e4e4f29a1d22a51adee69558_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{B38C8B49-BDBA-47BF-B43A-94B4616EC183}	2024-12-15_99b98e57e4e4f29a1d22a51adee69558_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-15_99b98e57e4e4f29a1d22a51adee69558_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-15_99b98e57e4e4f29a1d22a51adee69558_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2124
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2160

C:\Users\Admin\AppData\Local\Temp\2024-12-15_99b98e57e4e4f29a1d22a51adee69558_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-15_99b98e57e4e4f29a1d22a51adee69558_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2908

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
efa55019430c94bf8f5bd1a1ce80b8ca

SHA1
79f69dd4c5bb5da56786d49a2bffb4ffb45c500a

SHA256
ead9c236d420d361740d271fb31a5aae1d98119b6e960c97e4185333de585a10

SHA512
5057c5560b324cfb2d148188257defd446f0ecee4b7ed5140cb47b8d1a74a6ece32ef2e0fb1d72e75696eafa01c4c6a0c14d53361fda078a1f57ae86b5b4121c

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