wannacry | 12950dbe5dd44cda67b588b15379ea883a9ff8e43ccc0950fb68c954177645ed

General

Target

2024-10-10_d7b9742e088114c31906a97292fd5dc7_wannacry.exe
Size

3.6MB
MD5

d7b9742e088114c31906a97292fd5dc7
SHA1

ea6ec9781a0794221e9827eac6813efb7bb188b5
SHA256

12950dbe5dd44cda67b588b15379ea883a9ff8e43ccc0950fb68c954177645ed
SHA512

fbf3103ded789c2fe2b4318cc86626e42d79500c7137fbd953d171e858ffb07db3a70493530473873177d95ea8ff9e162ec17a8ba48d1c7e079095be4fa52b12
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQc:yDqPoBhz1aRxcSUDkV

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3072) 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
2908	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	2024-10-10_d7b9742e088114c31906a97292fd5dc7_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-10_d7b9742e088114c31906a97292fd5dc7_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	2024-10-10_d7b9742e088114c31906a97292fd5dc7_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-10_d7b9742e088114c31906a97292fd5dc7_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-10_d7b9742e088114c31906a97292fd5dc7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-10_d7b9742e088114c31906a97292fd5dc7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-10_d7b9742e088114c31906a97292fd5dc7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8F194DBF-51B2-4875-84BA-2EBA75F7862B}	2024-10-10_d7b9742e088114c31906a97292fd5dc7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8F194DBF-51B2-4875-84BA-2EBA75F7862B}\WpadDecision = "0"	2024-10-10_d7b9742e088114c31906a97292fd5dc7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\76-c4-75-2d-b8-0a	2024-10-10_d7b9742e088114c31906a97292fd5dc7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8F194DBF-51B2-4875-84BA-2EBA75F7862B}\76-c4-75-2d-b8-0a	2024-10-10_d7b9742e088114c31906a97292fd5dc7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-10_d7b9742e088114c31906a97292fd5dc7_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-10_d7b9742e088114c31906a97292fd5dc7_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8F194DBF-51B2-4875-84BA-2EBA75F7862B}\WpadDecisionTime = 907c630a741bdb01	2024-10-10_d7b9742e088114c31906a97292fd5dc7_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8F194DBF-51B2-4875-84BA-2EBA75F7862B}\WpadNetworkName = "Network 3"	2024-10-10_d7b9742e088114c31906a97292fd5dc7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\76-c4-75-2d-b8-0a\WpadDecisionReason = "1"	2024-10-10_d7b9742e088114c31906a97292fd5dc7_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-10_d7b9742e088114c31906a97292fd5dc7_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-10_d7b9742e088114c31906a97292fd5dc7_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\76-c4-75-2d-b8-0a\WpadDecisionTime = 907c630a741bdb01	2024-10-10_d7b9742e088114c31906a97292fd5dc7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\76-c4-75-2d-b8-0a\WpadDecision = "0"	2024-10-10_d7b9742e088114c31906a97292fd5dc7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-10_d7b9742e088114c31906a97292fd5dc7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-10_d7b9742e088114c31906a97292fd5dc7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-10_d7b9742e088114c31906a97292fd5dc7_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-10_d7b9742e088114c31906a97292fd5dc7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-10_d7b9742e088114c31906a97292fd5dc7_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00a9000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-10_d7b9742e088114c31906a97292fd5dc7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8F194DBF-51B2-4875-84BA-2EBA75F7862B}\WpadDecisionReason = "1"	2024-10-10_d7b9742e088114c31906a97292fd5dc7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-10_d7b9742e088114c31906a97292fd5dc7_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-10_d7b9742e088114c31906a97292fd5dc7_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-10_d7b9742e088114c31906a97292fd5dc7_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1092
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2908

C:\Users\Admin\AppData\Local\Temp\2024-10-10_d7b9742e088114c31906a97292fd5dc7_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-10_d7b9742e088114c31906a97292fd5dc7_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2240

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
def1a8e968aa0b68870bc0859c06e684

SHA1
a69286abd0a74560a56f5cb276102328b22208c3

SHA256
34b4d9f6da3219dc079de3ddab8c86d968efc76c3d7b9b3c335fb7161bf4000e

SHA512
77140616d64a62a7886678f8f7377fe274314727d343ba43d971fdd74be8ce435648fd9dbc56b05188efa023d6dc4e5a9b7c036a510894b6bb6663bb214b9b88

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