wannacry | 2038bee1863127ccc30985f470d92bf58a768b899b9ebf0de52591cc08216cb7

General

Target

2024-09-26_5b316bd42778fe9613a312f0b71172a1_wannacry.exe
Size

3.6MB
MD5

5b316bd42778fe9613a312f0b71172a1
SHA1

8256cb0775972149adb46ccdfca83f63fda0a129
SHA256

2038bee1863127ccc30985f470d92bf58a768b899b9ebf0de52591cc08216cb7
SHA512

5e50f8a9794845fc04a2ccee1716b058e1e2a0e5e07cf50d560180511fc2cec9ca73ae3a6e7ad7e1b46117c5af3b9e8f2117ab15153bd88d66c7add250c094de
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdOxJM0H9PAMEcaEau3R+i:yDqPoBhz1aRxcSUwxWa9P593R+

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3340) 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
2732	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	2024-09-26_5b316bd42778fe9613a312f0b71172a1_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-26_5b316bd42778fe9613a312f0b71172a1_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	2024-09-26_5b316bd42778fe9613a312f0b71172a1_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-26_5b316bd42778fe9613a312f0b71172a1_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 = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00fc000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-26_5b316bd42778fe9613a312f0b71172a1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37C5064A-CF37-4728-970B-B9A205A27EFE}	2024-09-26_5b316bd42778fe9613a312f0b71172a1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37C5064A-CF37-4728-970B-B9A205A27EFE}\WpadDecisionReason = "1"	2024-09-26_5b316bd42778fe9613a312f0b71172a1_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37C5064A-CF37-4728-970B-B9A205A27EFE}\WpadNetworkName = "Network 3"	2024-09-26_5b316bd42778fe9613a312f0b71172a1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-26_5b316bd42778fe9613a312f0b71172a1_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-26_5b316bd42778fe9613a312f0b71172a1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-26_5b316bd42778fe9613a312f0b71172a1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37C5064A-CF37-4728-970B-B9A205A27EFE}\WpadDecision = "0"	2024-09-26_5b316bd42778fe9613a312f0b71172a1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-26_5b316bd42778fe9613a312f0b71172a1_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-26_5b316bd42778fe9613a312f0b71172a1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-26_5b316bd42778fe9613a312f0b71172a1_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-26_5b316bd42778fe9613a312f0b71172a1_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37C5064A-CF37-4728-970B-B9A205A27EFE}\WpadDecisionTime = 70d6e0755710db01	2024-09-26_5b316bd42778fe9613a312f0b71172a1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-02-b2-f5-1a-e2	2024-09-26_5b316bd42778fe9613a312f0b71172a1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-02-b2-f5-1a-e2\WpadDecisionReason = "1"	2024-09-26_5b316bd42778fe9613a312f0b71172a1_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-02-b2-f5-1a-e2\WpadDecisionTime = 70d6e0755710db01	2024-09-26_5b316bd42778fe9613a312f0b71172a1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-26_5b316bd42778fe9613a312f0b71172a1_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-26_5b316bd42778fe9613a312f0b71172a1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-26_5b316bd42778fe9613a312f0b71172a1_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-26_5b316bd42778fe9613a312f0b71172a1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37C5064A-CF37-4728-970B-B9A205A27EFE}\96-02-b2-f5-1a-e2	2024-09-26_5b316bd42778fe9613a312f0b71172a1_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\96-02-b2-f5-1a-e2\WpadDecision = "0"	2024-09-26_5b316bd42778fe9613a312f0b71172a1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-26_5b316bd42778fe9613a312f0b71172a1_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-26_5b316bd42778fe9613a312f0b71172a1_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-26_5b316bd42778fe9613a312f0b71172a1_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-26_5b316bd42778fe9613a312f0b71172a1_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2856
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2732

C:\Users\Admin\AppData\Local\Temp\2024-09-26_5b316bd42778fe9613a312f0b71172a1_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-26_5b316bd42778fe9613a312f0b71172a1_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2744

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
9581a1065bc6422bb7d856c34841716b

SHA1
c5cb582bbc84168a655444a08c43fdf6d617cd87

SHA256
43a578d8cf23874a7e46bf8370d4ad52f99267f21393659fb92fe51721d0f939

SHA512
e1f6402177395806e1625b8be0269f8e380b9fac7677f83b2efed987045ac9cbda2fd45be7ce1ccc850b1ebb7f278031b70a60e109278b542198624accad90b8

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