wannacry | 41acfd4fa73073edbe27222423f037d4fbde46b56da6bbfe49a5753e95389d59

General

Target

2024-11-26_2976f270fec4ddd52d7ccb02b7956bf5_wannacry.exe
Size

5.0MB
MD5

2976f270fec4ddd52d7ccb02b7956bf5
SHA1

e15a375d40d6d81fd32bd1cc62ae3a86d47d6ed7
SHA256

41acfd4fa73073edbe27222423f037d4fbde46b56da6bbfe49a5753e95389d59
SHA512

896fc561e20e7272833bd23ac7ed26a56a9e8aa972e6bcb8ebfe9e6467b3054e64aaa8480c952512c9c176ae0a78e2257605e160befb5c6cfa9e54fd51e8e17d
SSDEEP

98304:yDqPoBhw1aRxcSUDk36SAEdhvxWa9P593R8yAVp2gC:yDqPB1Cxcxk3ZAEUadzR8yc4

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 (3114) 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
2748	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	2024-11-26_2976f270fec4ddd52d7ccb02b7956bf5_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-11-26_2976f270fec4ddd52d7ccb02b7956bf5_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	2024-11-26_2976f270fec4ddd52d7ccb02b7956bf5_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-26_2976f270fec4ddd52d7ccb02b7956bf5_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	2024-11-26_2976f270fec4ddd52d7ccb02b7956bf5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-26_2976f270fec4ddd52d7ccb02b7956bf5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-11-26_2976f270fec4ddd52d7ccb02b7956bf5_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0114000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-26_2976f270fec4ddd52d7ccb02b7956bf5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A7989B48-AF7D-454F-A0C2-C1582A834DC4}\a6-e4-df-aa-5b-13	2024-11-26_2976f270fec4ddd52d7ccb02b7956bf5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-26_2976f270fec4ddd52d7ccb02b7956bf5_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-11-26_2976f270fec4ddd52d7ccb02b7956bf5_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-11-26_2976f270fec4ddd52d7ccb02b7956bf5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A7989B48-AF7D-454F-A0C2-C1582A834DC4}\WpadDecisionReason = "1"	2024-11-26_2976f270fec4ddd52d7ccb02b7956bf5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A7989B48-AF7D-454F-A0C2-C1582A834DC4}\WpadDecision = "0"	2024-11-26_2976f270fec4ddd52d7ccb02b7956bf5_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A7989B48-AF7D-454F-A0C2-C1582A834DC4}\WpadNetworkName = "Network 3"	2024-11-26_2976f270fec4ddd52d7ccb02b7956bf5_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a6-e4-df-aa-5b-13\WpadDecisionTime = 904eade52a40db01	2024-11-26_2976f270fec4ddd52d7ccb02b7956bf5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-11-26_2976f270fec4ddd52d7ccb02b7956bf5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-11-26_2976f270fec4ddd52d7ccb02b7956bf5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A7989B48-AF7D-454F-A0C2-C1582A834DC4}	2024-11-26_2976f270fec4ddd52d7ccb02b7956bf5_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A7989B48-AF7D-454F-A0C2-C1582A834DC4}\WpadDecisionTime = 904eade52a40db01	2024-11-26_2976f270fec4ddd52d7ccb02b7956bf5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a6-e4-df-aa-5b-13\WpadDecision = "0"	2024-11-26_2976f270fec4ddd52d7ccb02b7956bf5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-11-26_2976f270fec4ddd52d7ccb02b7956bf5_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-26_2976f270fec4ddd52d7ccb02b7956bf5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-11-26_2976f270fec4ddd52d7ccb02b7956bf5_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-11-26_2976f270fec4ddd52d7ccb02b7956bf5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-11-26_2976f270fec4ddd52d7ccb02b7956bf5_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a6-e4-df-aa-5b-13	2024-11-26_2976f270fec4ddd52d7ccb02b7956bf5_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a6-e4-df-aa-5b-13\WpadDecisionReason = "1"	2024-11-26_2976f270fec4ddd52d7ccb02b7956bf5_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-26_2976f270fec4ddd52d7ccb02b7956bf5_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-26_2976f270fec4ddd52d7ccb02b7956bf5_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2684
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2748

C:\Users\Admin\AppData\Local\Temp\2024-11-26_2976f270fec4ddd52d7ccb02b7956bf5_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-26_2976f270fec4ddd52d7ccb02b7956bf5_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1888

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
6269a696fcc9290bd144c870ed68b507

SHA1
ee48d90df2cb1ad782ce2fe1aa8a2d7034c29f3b

SHA256
ed7b635137eaec1424e0867253bb38fb6944693602783287c67f3c11fba91d83

SHA512
c08d3d7b2ff71db7623db95dd6370800f2e962d966542cb43d2cd0e339f959fef8983e7cd83465298511a32fd0af94f919998539df459c9da2d932a4a9227487

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