wannacry | a01eea9838d6301dfff666282bb2b71fe25f9ba521829e5a08bd8a8047493d98

General

Target

202409295873e664cb6f8a2eab04fd41b860e018wannacry.exe
Size

5.0MB
MD5

5873e664cb6f8a2eab04fd41b860e018
SHA1

9af44f70d4ee59f2d1d110ce79f79510a736be25
SHA256

a01eea9838d6301dfff666282bb2b71fe25f9ba521829e5a08bd8a8047493d98
SHA512

50352d53772af93aabaa22d897ae20f71a013022a0a39a31ed62469c5f63b0c8e7bd8aaa9e94f1140928b29c92628d3aac290baae60a0e26f75083aa18e85246
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAAZ:yDqPoBhz1aRxcSUDk36SAE

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3264) 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
800	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	202409295873e664cb6f8a2eab04fd41b860e018wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	202409295873e664cb6f8a2eab04fd41b860e018wannacry.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	202409295873e664cb6f8a2eab04fd41b860e018wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	202409295873e664cb6f8a2eab04fd41b860e018wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	202409295873e664cb6f8a2eab04fd41b860e018wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	202409295873e664cb6f8a2eab04fd41b860e018wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	202409295873e664cb6f8a2eab04fd41b860e018wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00c2000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	202409295873e664cb6f8a2eab04fd41b860e018wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	202409295873e664cb6f8a2eab04fd41b860e018wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	202409295873e664cb6f8a2eab04fd41b860e018wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	202409295873e664cb6f8a2eab04fd41b860e018wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	202409295873e664cb6f8a2eab04fd41b860e018wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F42A61C8-A496-4AF7-BCF6-D6BFB10B7EF4}\WpadDecisionReason = "1"	202409295873e664cb6f8a2eab04fd41b860e018wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F42A61C8-A496-4AF7-BCF6-D6BFB10B7EF4}\0e-20-9c-63-3d-01	202409295873e664cb6f8a2eab04fd41b860e018wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-20-9c-63-3d-01\WpadDecisionTime = 60644e03b412db01	202409295873e664cb6f8a2eab04fd41b860e018wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	202409295873e664cb6f8a2eab04fd41b860e018wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	202409295873e664cb6f8a2eab04fd41b860e018wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F42A61C8-A496-4AF7-BCF6-D6BFB10B7EF4}\WpadDecision = "0"	202409295873e664cb6f8a2eab04fd41b860e018wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-20-9c-63-3d-01\WpadDecision = "0"	202409295873e664cb6f8a2eab04fd41b860e018wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F42A61C8-A496-4AF7-BCF6-D6BFB10B7EF4}\WpadNetworkName = "Network 3"	202409295873e664cb6f8a2eab04fd41b860e018wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	202409295873e664cb6f8a2eab04fd41b860e018wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	202409295873e664cb6f8a2eab04fd41b860e018wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	202409295873e664cb6f8a2eab04fd41b860e018wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F42A61C8-A496-4AF7-BCF6-D6BFB10B7EF4}\WpadDecisionTime = 60644e03b412db01	202409295873e664cb6f8a2eab04fd41b860e018wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	202409295873e664cb6f8a2eab04fd41b860e018wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{F42A61C8-A496-4AF7-BCF6-D6BFB10B7EF4}	202409295873e664cb6f8a2eab04fd41b860e018wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-20-9c-63-3d-01	202409295873e664cb6f8a2eab04fd41b860e018wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0e-20-9c-63-3d-01\WpadDecisionReason = "1"	202409295873e664cb6f8a2eab04fd41b860e018wannacry.exe

C:\Users\Admin\AppData\Local\Temp\202409295873e664cb6f8a2eab04fd41b860e018wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\202409295873e664cb6f8a2eab04fd41b860e018wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2108
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:800

C:\Users\Admin\AppData\Local\Temp\202409295873e664cb6f8a2eab04fd41b860e018wannacry.exe
C:\Users\Admin\AppData\Local\Temp\202409295873e664cb6f8a2eab04fd41b860e018wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1628

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

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
a98292d574a6963bc1750c67761d9439

SHA1
0531d86351b4e54a1355cfa75bf88eda8a5ea5f9

SHA256
3ece6b85021a3b4db03d55b3adb55604655c79c1f576ae6c7077dd6128b8cf0f

SHA512
eb2b1d7daf32a95547456393337baef913d2e78b9190ce4800924185a8ed0256831ac8e859f5b3debe160f2648b75004938b568e80459eb67f1c3c4f0660aa16

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