wannacry | 90e843dfa145824fc467904c05bf6f4aae8f044a9b2a12ad6739081d148d7684

General

Target

2024-06-15_8791a5555fe7e2639850a0ebe1efb274_wannacry.exe
Size

5.0MB
MD5

8791a5555fe7e2639850a0ebe1efb274
SHA1

db47fb0b429a58087e208942d5c499891ae4b6eb
SHA256

90e843dfa145824fc467904c05bf6f4aae8f044a9b2a12ad6739081d148d7684
SHA512

f7bfee16a9527cd0675fce0a0cafdf0294deddf3cf560722e3ce78545018a79089a1bc72dbf14fad6b752409bfacf9686128e55caade69c275640305ba3e3f90
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9PF3R8yAVp2H:yDqPe1Cxcxk3ZAEUadlR8yc4H

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3304) 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

Processes:

tasksche.exe

pid process

3008 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

pid	process
3008	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

2024-06-15_8791a5555fe7e2639850a0ebe1efb274_wannacry.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-06-15_8791a5555fe7e2639850a0ebe1efb274_wannacry.exe

Drops file in Windows directory 1 IoCs

Processes:

2024-06-15_8791a5555fe7e2639850a0ebe1efb274_wannacry.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 2024-06-15_8791a5555fe7e2639850a0ebe1efb274_wannacry.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	2024-06-15_8791a5555fe7e2639850a0ebe1efb274_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

2024-06-15_8791a5555fe7e2639850a0ebe1efb274_wannacry.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{476411AC-C4CC-4A8D-A5D7-56C0250D9A35}\WpadNetworkName = "Network 3"	2024-06-15_8791a5555fe7e2639850a0ebe1efb274_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a2-c7-a7-c3-16-76\WpadDecisionTime = 50bd9ec614bfda01	2024-06-15_8791a5555fe7e2639850a0ebe1efb274_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{476411AC-C4CC-4A8D-A5D7-56C0250D9A35}\WpadDecisionTime = 50bd9ec614bfda01	2024-06-15_8791a5555fe7e2639850a0ebe1efb274_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-06-15_8791a5555fe7e2639850a0ebe1efb274_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-06-15_8791a5555fe7e2639850a0ebe1efb274_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-06-15_8791a5555fe7e2639850a0ebe1efb274_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0049000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-06-15_8791a5555fe7e2639850a0ebe1efb274_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{476411AC-C4CC-4A8D-A5D7-56C0250D9A35}	2024-06-15_8791a5555fe7e2639850a0ebe1efb274_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{476411AC-C4CC-4A8D-A5D7-56C0250D9A35}\WpadDecision = "0"	2024-06-15_8791a5555fe7e2639850a0ebe1efb274_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a2-c7-a7-c3-16-76	2024-06-15_8791a5555fe7e2639850a0ebe1efb274_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-06-15_8791a5555fe7e2639850a0ebe1efb274_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a2-c7-a7-c3-16-76\WpadDecisionReason = "1"	2024-06-15_8791a5555fe7e2639850a0ebe1efb274_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-06-15_8791a5555fe7e2639850a0ebe1efb274_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-06-15_8791a5555fe7e2639850a0ebe1efb274_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-06-15_8791a5555fe7e2639850a0ebe1efb274_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-06-15_8791a5555fe7e2639850a0ebe1efb274_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-06-15_8791a5555fe7e2639850a0ebe1efb274_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{476411AC-C4CC-4A8D-A5D7-56C0250D9A35}\WpadDecisionReason = "1"	2024-06-15_8791a5555fe7e2639850a0ebe1efb274_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-06-15_8791a5555fe7e2639850a0ebe1efb274_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-06-15_8791a5555fe7e2639850a0ebe1efb274_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-06-15_8791a5555fe7e2639850a0ebe1efb274_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{476411AC-C4CC-4A8D-A5D7-56C0250D9A35}\a2-c7-a7-c3-16-76	2024-06-15_8791a5555fe7e2639850a0ebe1efb274_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a2-c7-a7-c3-16-76\WpadDecision = "0"	2024-06-15_8791a5555fe7e2639850a0ebe1efb274_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-06-15_8791a5555fe7e2639850a0ebe1efb274_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-06-15_8791a5555fe7e2639850a0ebe1efb274_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-15_8791a5555fe7e2639850a0ebe1efb274_wannacry.exe"
1⤵
- Drops file in Windows directory
PID:2028

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:3008

C:\Users\Admin\AppData\Local\Temp\2024-06-15_8791a5555fe7e2639850a0ebe1efb274_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-06-15_8791a5555fe7e2639850a0ebe1efb274_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2252

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
7d4f61572ff99c1cd6caa73c59ebd67c

SHA1
4d4a4c7f6d281f224ad174f5457c8bfdb97977a2

SHA256
7013203a55df9690b99e658a95ef80788e3f2973fa1f181c0f06c44ade2d6667

SHA512
b8a93ecae4f9dec0927c79669d989e0c5c527605c853a9619c718fdc8de3e8005639453de4262a3a8d863c0fd76f60debae7701e7d7c08cf5a81b1d54d89d93c

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