wannacry | d994d02660a8c02e463c93aeadf9975f946f2e372b5517cf27c08c0362233c75

General

Target

2024-10-12_f815a9928fa1464f48f37b01742a1cf0_wannacry.exe
Size

3.6MB
MD5

f815a9928fa1464f48f37b01742a1cf0
SHA1

9e97a61277b025f75457d4192a91702323f1f55f
SHA256

d994d02660a8c02e463c93aeadf9975f946f2e372b5517cf27c08c0362233c75
SHA512

5871d76f13783ba72326b9744f7a0805d1d8ace1142c6a72e34316866bcd4368adad7fdb5d772f29075a3282413fa69143828df7f53e41e160af7f2ca1623a7f
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yA:yDqPe1Cxcxk3ZAEUadzR8y

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3297) 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
2392	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	2024-10-12_f815a9928fa1464f48f37b01742a1cf0_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-12_f815a9928fa1464f48f37b01742a1cf0_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	2024-10-12_f815a9928fa1464f48f37b01742a1cf0_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_f815a9928fa1464f48f37b01742a1cf0_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-b7-71-7e-cd-c1	2024-10-12_f815a9928fa1464f48f37b01742a1cf0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_f815a9928fa1464f48f37b01742a1cf0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-12_f815a9928fa1464f48f37b01742a1cf0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_f815a9928fa1464f48f37b01742a1cf0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-12_f815a9928fa1464f48f37b01742a1cf0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-12_f815a9928fa1464f48f37b01742a1cf0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0122000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_f815a9928fa1464f48f37b01742a1cf0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{34F83CF2-EFFF-4BA8-9D3B-B556775640D2}\WpadDecision = "0"	2024-10-12_f815a9928fa1464f48f37b01742a1cf0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{34F83CF2-EFFF-4BA8-9D3B-B556775640D2}\32-b7-71-7e-cd-c1	2024-10-12_f815a9928fa1464f48f37b01742a1cf0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-b7-71-7e-cd-c1\WpadDecisionReason = "1"	2024-10-12_f815a9928fa1464f48f37b01742a1cf0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-12_f815a9928fa1464f48f37b01742a1cf0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-12_f815a9928fa1464f48f37b01742a1cf0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-12_f815a9928fa1464f48f37b01742a1cf0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-12_f815a9928fa1464f48f37b01742a1cf0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{34F83CF2-EFFF-4BA8-9D3B-B556775640D2}	2024-10-12_f815a9928fa1464f48f37b01742a1cf0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{34F83CF2-EFFF-4BA8-9D3B-B556775640D2}\WpadDecisionReason = "1"	2024-10-12_f815a9928fa1464f48f37b01742a1cf0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{34F83CF2-EFFF-4BA8-9D3B-B556775640D2}\WpadDecisionTime = 80bfb2525d1cdb01	2024-10-12_f815a9928fa1464f48f37b01742a1cf0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-12_f815a9928fa1464f48f37b01742a1cf0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-b7-71-7e-cd-c1\WpadDecisionTime = 80bfb2525d1cdb01	2024-10-12_f815a9928fa1464f48f37b01742a1cf0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_f815a9928fa1464f48f37b01742a1cf0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_f815a9928fa1464f48f37b01742a1cf0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-12_f815a9928fa1464f48f37b01742a1cf0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{34F83CF2-EFFF-4BA8-9D3B-B556775640D2}\WpadNetworkName = "Network 3"	2024-10-12_f815a9928fa1464f48f37b01742a1cf0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\32-b7-71-7e-cd-c1\WpadDecision = "0"	2024-10-12_f815a9928fa1464f48f37b01742a1cf0_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-12_f815a9928fa1464f48f37b01742a1cf0_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_f815a9928fa1464f48f37b01742a1cf0_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2188
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2392

C:\Users\Admin\AppData\Local\Temp\2024-10-12_f815a9928fa1464f48f37b01742a1cf0_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_f815a9928fa1464f48f37b01742a1cf0_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2732

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
425428f9a4fb18e5ea4b9a23cd6fea77

SHA1
ef4753c61fd8e50984844b5fb2ace7427445b3c8

SHA256
ba77942323515fd68b7862b96a6db3b991779dac91bf7dc8460500909c78698a

SHA512
2258b8fab22ce52ea843a654498ee7874928a29af6db7a9ff697f013f02956bc46c78e8f53d0489b6b0c22d7b4dedddc2a0d71d46f5e63b75131b3825a48bca0

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