wannacry | 74794b29f2771c2e1cd0e7653bc45b340f5239e8b47f33cc990d0f82320dcb3f

General

Target

2024-11-15_21ebf4bdb8d11a23b91483d0f3ea3f63_wannacry.exe
Size

5.0MB
MD5

21ebf4bdb8d11a23b91483d0f3ea3f63
SHA1

d4eab5045bb29e6313f7b6819f52d7a3cf5b225d
SHA256

74794b29f2771c2e1cd0e7653bc45b340f5239e8b47f33cc990d0f82320dcb3f
SHA512

07054753849798a6e0c3a1d6f68e68ca7387c5d6b8a5ff61475fae203b142f80e9dc72af1560ae41b214ee51139d0e3152912ff208235069425f7a7039960b98
SSDEEP

49152:VnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAARdhnvxJM0H9dj:ZDqPoBhz1aRxcSUDk36SAEdhvxWa9dj

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 (3098) 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
2552	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	2024-11-15_21ebf4bdb8d11a23b91483d0f3ea3f63_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-11-15_21ebf4bdb8d11a23b91483d0f3ea3f63_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	2024-11-15_21ebf4bdb8d11a23b91483d0f3ea3f63_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-15_21ebf4bdb8d11a23b91483d0f3ea3f63_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-11-15_21ebf4bdb8d11a23b91483d0f3ea3f63_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-11-15_21ebf4bdb8d11a23b91483d0f3ea3f63_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00b7000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-15_21ebf4bdb8d11a23b91483d0f3ea3f63_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2CA533EF-4B2F-471E-8186-029C7704BD66}\WpadDecisionTime = a088536d6137db01	2024-11-15_21ebf4bdb8d11a23b91483d0f3ea3f63_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2e-5f-f5-8d-51-a9	2024-11-15_21ebf4bdb8d11a23b91483d0f3ea3f63_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2e-5f-f5-8d-51-a9\WpadDecisionTime = a088536d6137db01	2024-11-15_21ebf4bdb8d11a23b91483d0f3ea3f63_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-15_21ebf4bdb8d11a23b91483d0f3ea3f63_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-11-15_21ebf4bdb8d11a23b91483d0f3ea3f63_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2CA533EF-4B2F-471E-8186-029C7704BD66}\WpadDecisionReason = "1"	2024-11-15_21ebf4bdb8d11a23b91483d0f3ea3f63_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2CA533EF-4B2F-471E-8186-029C7704BD66}\WpadNetworkName = "Network 3"	2024-11-15_21ebf4bdb8d11a23b91483d0f3ea3f63_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2CA533EF-4B2F-471E-8186-029C7704BD66}\2e-5f-f5-8d-51-a9	2024-11-15_21ebf4bdb8d11a23b91483d0f3ea3f63_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-11-15_21ebf4bdb8d11a23b91483d0f3ea3f63_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-11-15_21ebf4bdb8d11a23b91483d0f3ea3f63_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2CA533EF-4B2F-471E-8186-029C7704BD66}	2024-11-15_21ebf4bdb8d11a23b91483d0f3ea3f63_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{2CA533EF-4B2F-471E-8186-029C7704BD66}\WpadDecision = "0"	2024-11-15_21ebf4bdb8d11a23b91483d0f3ea3f63_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2e-5f-f5-8d-51-a9\WpadDecisionReason = "1"	2024-11-15_21ebf4bdb8d11a23b91483d0f3ea3f63_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-11-15_21ebf4bdb8d11a23b91483d0f3ea3f63_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-11-15_21ebf4bdb8d11a23b91483d0f3ea3f63_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-15_21ebf4bdb8d11a23b91483d0f3ea3f63_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-11-15_21ebf4bdb8d11a23b91483d0f3ea3f63_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-11-15_21ebf4bdb8d11a23b91483d0f3ea3f63_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2e-5f-f5-8d-51-a9\WpadDecision = "0"	2024-11-15_21ebf4bdb8d11a23b91483d0f3ea3f63_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-15_21ebf4bdb8d11a23b91483d0f3ea3f63_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-15_21ebf4bdb8d11a23b91483d0f3ea3f63_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-15_21ebf4bdb8d11a23b91483d0f3ea3f63_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-15_21ebf4bdb8d11a23b91483d0f3ea3f63_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2732
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2552

C:\Users\Admin\AppData\Local\Temp\2024-11-15_21ebf4bdb8d11a23b91483d0f3ea3f63_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-15_21ebf4bdb8d11a23b91483d0f3ea3f63_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2656

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
2e2a7c206d06a1e66ba56440cb43d124

SHA1
3ab0d856ae535288028037627c7de7b1483cad00

SHA256
db8d445fd851a74728d4df392c126f5aab4da3051b29d4ea9c13baff80eb0857

SHA512
db1939bcd1a6304fc4e2d9df6892f4e403e3c27c70b803a1560e8aa1709f59343474ff41beadb87dddae0414ffe194fa1e24a94f0d1402058d2d7158f22227ae

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Analysis

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