wannacry | 9712e75274c790fb9b1560e4b4d356688ad558f2576ff64dffeeaa620f3fb044

General

Target

2024-10-13_190b5b5bf1213609684937a23785f6e7_wannacry.exe
Size

3.6MB
MD5

190b5b5bf1213609684937a23785f6e7
SHA1

c65ecb3b24513d87a10acfefdf2ac679907f93d4
SHA256

9712e75274c790fb9b1560e4b4d356688ad558f2576ff64dffeeaa620f3fb044
SHA512

e92221672dfaa99bebe2e202731cd95fbf5148bd32419b2c0e67fe35617cd05b0a351e462d4cb448e73584ca1e7dd893c5c838b98af94900e7dace6bb125a7eb
SSDEEP

49152:XnAQqMSPbcBVQej/1UNRx+TSqTdX1HkQo6SAARdhnvrAH1plAHI:XDqPoBhz1mRxcSUDk36SAEdhvrAVp2HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3302) 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
340	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	2024-10-13_190b5b5bf1213609684937a23785f6e7_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-13_190b5b5bf1213609684937a23785f6e7_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	2024-10-13_190b5b5bf1213609684937a23785f6e7_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-13_190b5b5bf1213609684937a23785f6e7_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{42B21C9F-19A9-428F-8161-A7E3744F218E}\WpadDecisionReason = "1"	2024-10-13_190b5b5bf1213609684937a23785f6e7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{42B21C9F-19A9-428F-8161-A7E3744F218E}\WpadDecision = "0"	2024-10-13_190b5b5bf1213609684937a23785f6e7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\72-18-c8-2e-b8-34\WpadDecision = "0"	2024-10-13_190b5b5bf1213609684937a23785f6e7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-13_190b5b5bf1213609684937a23785f6e7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-13_190b5b5bf1213609684937a23785f6e7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-13_190b5b5bf1213609684937a23785f6e7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-13_190b5b5bf1213609684937a23785f6e7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-13_190b5b5bf1213609684937a23785f6e7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-13_190b5b5bf1213609684937a23785f6e7_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-13_190b5b5bf1213609684937a23785f6e7_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-13_190b5b5bf1213609684937a23785f6e7_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00dd000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-13_190b5b5bf1213609684937a23785f6e7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{42B21C9F-19A9-428F-8161-A7E3744F218E}	2024-10-13_190b5b5bf1213609684937a23785f6e7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{42B21C9F-19A9-428F-8161-A7E3744F218E}\72-18-c8-2e-b8-34	2024-10-13_190b5b5bf1213609684937a23785f6e7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-13_190b5b5bf1213609684937a23785f6e7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-13_190b5b5bf1213609684937a23785f6e7_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-13_190b5b5bf1213609684937a23785f6e7_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{42B21C9F-19A9-428F-8161-A7E3744F218E}\WpadNetworkName = "Network 3"	2024-10-13_190b5b5bf1213609684937a23785f6e7_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\72-18-c8-2e-b8-34	2024-10-13_190b5b5bf1213609684937a23785f6e7_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\72-18-c8-2e-b8-34\WpadDecisionReason = "1"	2024-10-13_190b5b5bf1213609684937a23785f6e7_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\72-18-c8-2e-b8-34\WpadDecisionTime = e07c4c21221ddb01	2024-10-13_190b5b5bf1213609684937a23785f6e7_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-13_190b5b5bf1213609684937a23785f6e7_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-13_190b5b5bf1213609684937a23785f6e7_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{42B21C9F-19A9-428F-8161-A7E3744F218E}\WpadDecisionTime = e07c4c21221ddb01	2024-10-13_190b5b5bf1213609684937a23785f6e7_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-13_190b5b5bf1213609684937a23785f6e7_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-13_190b5b5bf1213609684937a23785f6e7_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1636
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:340

C:\Users\Admin\AppData\Local\Temp\2024-10-13_190b5b5bf1213609684937a23785f6e7_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-13_190b5b5bf1213609684937a23785f6e7_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2840

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
28bc0a432d42f583978dda1ec903d342

SHA1
b376226a880cfb8606e644403ec0b1660bc4bcf1

SHA256
487b9267cd8dcd2f6896984f83bd5541966795dfe66ef455a036fe230d4adee0

SHA512
19e04da9b86e02690261186d88e8b8061db496a68c7e8cd6db71f7b9e733946fbda3924fc8e6f9f35a3f2a827dd95292075b149a06bae6bd379e675b3d53bea3

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