wannacry | 44eea5e62577acea738a6d2970410b426a3544491430040ca93a4d5cbbb7d4ca

General

Target

202409297ec5761bc84965130f793f244103361cwannacry.exe
Size

3.6MB
MD5

7ec5761bc84965130f793f244103361c
SHA1

cf42b82580bc9584c8d05ccebcac841abd3a980c
SHA256

44eea5e62577acea738a6d2970410b426a3544491430040ca93a4d5cbbb7d4ca
SHA512

5d06fca2f04ec3d9825a8e2805c62e5c71dc330c6b2430b1653cd57ca159c6d123f5cbd6b6800e28bef5de4e1c13908c0b2fdb388170f11c6ac009163829e4c6
SSDEEP

49152:2nAQqMSPbcBVQej/JNRx+TSqTdX1HkQo6SAARdh:yDqPoBhzrRxcSUDk36SAEdh

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (2862) 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
372	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	202409297ec5761bc84965130f793f244103361cwannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	202409297ec5761bc84965130f793f244103361cwannacry.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	202409297ec5761bc84965130f793f244103361cwannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	202409297ec5761bc84965130f793f244103361cwannacry.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\Cookies\CachePrefix = "Cookie:"	202409297ec5761bc84965130f793f244103361cwannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	202409297ec5761bc84965130f793f244103361cwannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CCA608DC-E7BC-4A77-AD74-A73391D9EEBD}\WpadDecisionReason = "1"	202409297ec5761bc84965130f793f244103361cwannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\be-cf-02-41-fc-ac	202409297ec5761bc84965130f793f244103361cwannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\be-cf-02-41-fc-ac\WpadDecision = "0"	202409297ec5761bc84965130f793f244103361cwannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	202409297ec5761bc84965130f793f244103361cwannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	202409297ec5761bc84965130f793f244103361cwannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CCA608DC-E7BC-4A77-AD74-A73391D9EEBD}\WpadDecision = "0"	202409297ec5761bc84965130f793f244103361cwannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CCA608DC-E7BC-4A77-AD74-A73391D9EEBD}\be-cf-02-41-fc-ac	202409297ec5761bc84965130f793f244103361cwannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00d3000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	202409297ec5761bc84965130f793f244103361cwannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CCA608DC-E7BC-4A77-AD74-A73391D9EEBD}\WpadDecisionTime = e056ec7e8212db01	202409297ec5761bc84965130f793f244103361cwannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	202409297ec5761bc84965130f793f244103361cwannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	202409297ec5761bc84965130f793f244103361cwannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	202409297ec5761bc84965130f793f244103361cwannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	202409297ec5761bc84965130f793f244103361cwannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	202409297ec5761bc84965130f793f244103361cwannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CCA608DC-E7BC-4A77-AD74-A73391D9EEBD}	202409297ec5761bc84965130f793f244103361cwannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{CCA608DC-E7BC-4A77-AD74-A73391D9EEBD}\WpadNetworkName = "Network 3"	202409297ec5761bc84965130f793f244103361cwannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\be-cf-02-41-fc-ac\WpadDecisionReason = "1"	202409297ec5761bc84965130f793f244103361cwannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	202409297ec5761bc84965130f793f244103361cwannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	202409297ec5761bc84965130f793f244103361cwannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	202409297ec5761bc84965130f793f244103361cwannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	202409297ec5761bc84965130f793f244103361cwannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\be-cf-02-41-fc-ac\WpadDecisionTime = e056ec7e8212db01	202409297ec5761bc84965130f793f244103361cwannacry.exe

C:\Users\Admin\AppData\Local\Temp\202409297ec5761bc84965130f793f244103361cwannacry.exe
"C:\Users\Admin\AppData\Local\Temp\202409297ec5761bc84965130f793f244103361cwannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1732
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:372

C:\Users\Admin\AppData\Local\Temp\202409297ec5761bc84965130f793f244103361cwannacry.exe
C:\Users\Admin\AppData\Local\Temp\202409297ec5761bc84965130f793f244103361cwannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2476

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
0cd8ff5909688a4ebfd9cf1f1edb102b

SHA1
0dd54a59a80d631c83a3b9001cbfdb3d40864d6b

SHA256
52a0e40948af8d34d44a9c4c021beaf3faa9265ad2db96641c6600003d9678ef

SHA512
ebd2908753961930607896452feee21d0d9101c386a4e8db23c6d92d8b532941f345b6dfce7272869868bebc1ecbf005ba2036327cfd3a8545c4e77f02af4eee

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Analysis

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