wannacry | bb52c4c114162a6d1fc75dbedb03e1e8ac085919e2c1598161ae2effc7ad7d10

General

Target

202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe
Size

5.0MB
MD5

4bcfc4199d6314b8ff177449f4ad48f8
SHA1

2bd553d1d89f45b3c72cb327d0bb2c375879508f
SHA256

bb52c4c114162a6d1fc75dbedb03e1e8ac085919e2c1598161ae2effc7ad7d10
SHA512

9be95254f7a7e35e7b5a72b4f0adce93670a3cbb1ff871993b5d6d5141651c9c20694c7b4f317a127cf23233cc848d87c8a6b620cadbb5538fa8a80044283a80
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAAGu3R8yAH1plA:yDqPoBhz1aRxcSUDk36SAu3R8yAVp2

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3301) 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
2692	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	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.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	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.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"	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E2F70813-EB3A-444B-B5AB-CDE1D6677C49}	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E2F70813-EB3A-444B-B5AB-CDE1D6677C49}\WpadNetworkName = "Network 3"	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E2F70813-EB3A-444B-B5AB-CDE1D6677C49}\ee-c6-5e-9a-5e-a4	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E2F70813-EB3A-444B-B5AB-CDE1D6677C49}\WpadDecisionTime = c06adb158112db01	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ee-c6-5e-9a-5e-a4	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ee-c6-5e-9a-5e-a4\WpadDecisionTime = c06adb158112db01	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00b9000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ee-c6-5e-9a-5e-a4\WpadDecision = "0"	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E2F70813-EB3A-444B-B5AB-CDE1D6677C49}\WpadDecisionReason = "1"	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E2F70813-EB3A-444B-B5AB-CDE1D6677C49}\WpadDecision = "0"	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ee-c6-5e-9a-5e-a4\WpadDecisionReason = "1"	202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe

C:\Users\Admin\AppData\Local\Temp\202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2276
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2692

C:\Users\Admin\AppData\Local\Temp\202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe
C:\Users\Admin\AppData\Local\Temp\202409294bcfc4199d6314b8ff177449f4ad48f8wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2240

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
d61301661f8237fe2a76ae121c1d024a

SHA1
4b364db7dc680ac22264bb3635e69affefe135e2

SHA256
9b969824294ec83bb7082aa55b870073f86d4691b8d21803a5d65f87d253eef8

SHA512
849910b9a3a9fa49ca44b716f59000e3925d4c043eaa93dfc334374abab42f8bf0a03936ee0277743844dc86576bb288aa3e98978ff2bc184fd6cf64ca6463a7

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