wannacry | c19dd8352ccd9fec0a614697836d92066ea5c92eba32d1b160143b897ec9855f

General

Target

2024-06-26_30279bc06ab518323565d3ce82e477e6_wannacry.exe
Size

5.0MB
MD5

30279bc06ab518323565d3ce82e477e6
SHA1

3e11f36d037a0f4865353622a7a3b8da055a7375
SHA256

c19dd8352ccd9fec0a614697836d92066ea5c92eba32d1b160143b897ec9855f
SHA512

de95ef27e67534be91fd17a4f481b1e3a182c95c144de2c8c99788a7e1030368d19ac54f845ae90e59431495851ac520faff9b3ebf021971713e5e3bc6d1a880
SSDEEP

98304:XDqPoBhz1aRxcSUDk36SAEdhvxWa9P593R:XDqPe1Cxcxk3ZAEUadzR

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3208) 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
2100	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	2024-06-26_30279bc06ab518323565d3ce82e477e6_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-06-26_30279bc06ab518323565d3ce82e477e6_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-06-26_30279bc06ab518323565d3ce82e477e6_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-06-26_30279bc06ab518323565d3ce82e477e6_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-06-26_30279bc06ab518323565d3ce82e477e6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-06-26_30279bc06ab518323565d3ce82e477e6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-06-26_30279bc06ab518323565d3ce82e477e6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4C637B36-3C85-4E9F-88E9-E15CCFA50D80}	2024-06-26_30279bc06ab518323565d3ce82e477e6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4C637B36-3C85-4E9F-88E9-E15CCFA50D80}\1a-41-d6-a8-a7-90	2024-06-26_30279bc06ab518323565d3ce82e477e6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1a-41-d6-a8-a7-90\WpadDecisionReason = "1"	2024-06-26_30279bc06ab518323565d3ce82e477e6_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-06-26_30279bc06ab518323565d3ce82e477e6_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0055000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-06-26_30279bc06ab518323565d3ce82e477e6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4C637B36-3C85-4E9F-88E9-E15CCFA50D80}\WpadDecisionReason = "1"	2024-06-26_30279bc06ab518323565d3ce82e477e6_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-06-26_30279bc06ab518323565d3ce82e477e6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-06-26_30279bc06ab518323565d3ce82e477e6_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-06-26_30279bc06ab518323565d3ce82e477e6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-06-26_30279bc06ab518323565d3ce82e477e6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-06-26_30279bc06ab518323565d3ce82e477e6_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4C637B36-3C85-4E9F-88E9-E15CCFA50D80}\WpadDecisionTime = b06cba26c7c7da01	2024-06-26_30279bc06ab518323565d3ce82e477e6_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4C637B36-3C85-4E9F-88E9-E15CCFA50D80}\WpadNetworkName = "Network 3"	2024-06-26_30279bc06ab518323565d3ce82e477e6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1a-41-d6-a8-a7-90\WpadDecision = "0"	2024-06-26_30279bc06ab518323565d3ce82e477e6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-06-26_30279bc06ab518323565d3ce82e477e6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-06-26_30279bc06ab518323565d3ce82e477e6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{4C637B36-3C85-4E9F-88E9-E15CCFA50D80}\WpadDecision = "0"	2024-06-26_30279bc06ab518323565d3ce82e477e6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1a-41-d6-a8-a7-90	2024-06-26_30279bc06ab518323565d3ce82e477e6_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\1a-41-d6-a8-a7-90\WpadDecisionTime = b06cba26c7c7da01	2024-06-26_30279bc06ab518323565d3ce82e477e6_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-06-26_30279bc06ab518323565d3ce82e477e6_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-26_30279bc06ab518323565d3ce82e477e6_wannacry.exe"
1⤵
- Drops file in Windows directory
PID:836
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2100

C:\Users\Admin\AppData\Local\Temp\2024-06-26_30279bc06ab518323565d3ce82e477e6_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-06-26_30279bc06ab518323565d3ce82e477e6_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2400

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
4db8c7749d12eb70991d6afd145b6a63

SHA1
f37af05cd1d473879a3e190120dd2ebd7ef774ed

SHA256
4f4c122ea21541a9c28153c8ffc59c539f4097a31a38f2784c038b7c7dce877d

SHA512
5f3e921a2327f4cd3a02fbc081c3ab8d08cd66940f0a35311d6e58036d0e4d64265f20819320fc2e25aec32f610b0ec1acc29b85863b8c444dd2b5be368c35c0

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