wannacry | 8a818b50f15849b51ba1e44a277892acf43414d68a6d33dce11578e0fcf62616

General

Target

20240702eccd28b3b9d6ede255e33afbf7686a12wannacry.exe
Size

5.0MB
MD5

eccd28b3b9d6ede255e33afbf7686a12
SHA1

e4808dcf7b9ee5d2339dfd3056e31776e7710d7f
SHA256

8a818b50f15849b51ba1e44a277892acf43414d68a6d33dce11578e0fcf62616
SHA512

c1460d76d154f55c1abc06d95b0c354ff39000442bda18b0524c82d675f24a3bfa3735938a4eda907f9c192598a63debdabf0ea35ed9575dedf67c5764d2576d
SSDEEP

24576:2bLgddQhfdmMSirYbcMNgef0QeQjGenEaut/8uME7A4kqAH1pNZtA0p+9XEk:2nAQqMSPbcBVQejcEau3R8yAH1plAH

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3268) 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

2548 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
2548	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

20240702eccd28b3b9d6ede255e33afbf7686a12wannacry.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	20240702eccd28b3b9d6ede255e33afbf7686a12wannacry.exe

Drops file in Windows directory 1 IoCs

Processes:

20240702eccd28b3b9d6ede255e33afbf7686a12wannacry.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 20240702eccd28b3b9d6ede255e33afbf7686a12wannacry.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	20240702eccd28b3b9d6ede255e33afbf7686a12wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

20240702eccd28b3b9d6ede255e33afbf7686a12wannacry.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	20240702eccd28b3b9d6ede255e33afbf7686a12wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	20240702eccd28b3b9d6ede255e33afbf7686a12wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	20240702eccd28b3b9d6ede255e33afbf7686a12wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	20240702eccd28b3b9d6ede255e33afbf7686a12wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6B858B10-E090-44C0-8173-6A979A1DA93F}\WpadNetworkName = "Network 3"	20240702eccd28b3b9d6ede255e33afbf7686a12wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6B858B10-E090-44C0-8173-6A979A1DA93F}\5a-24-0f-a9-df-c2	20240702eccd28b3b9d6ede255e33afbf7686a12wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5a-24-0f-a9-df-c2\WpadDecisionReason = "1"	20240702eccd28b3b9d6ede255e33afbf7686a12wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	20240702eccd28b3b9d6ede255e33afbf7686a12wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	20240702eccd28b3b9d6ede255e33afbf7686a12wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	20240702eccd28b3b9d6ede255e33afbf7686a12wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	20240702eccd28b3b9d6ede255e33afbf7686a12wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	20240702eccd28b3b9d6ede255e33afbf7686a12wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6B858B10-E090-44C0-8173-6A979A1DA93F}\WpadDecisionReason = "1"	20240702eccd28b3b9d6ede255e33afbf7686a12wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6B858B10-E090-44C0-8173-6A979A1DA93F}\WpadDecision = "0"	20240702eccd28b3b9d6ede255e33afbf7686a12wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5a-24-0f-a9-df-c2\WpadDecisionTime = c0168c18f3cdda01	20240702eccd28b3b9d6ede255e33afbf7686a12wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5a-24-0f-a9-df-c2\WpadDecision = "0"	20240702eccd28b3b9d6ede255e33afbf7686a12wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5a-24-0f-a9-df-c2	20240702eccd28b3b9d6ede255e33afbf7686a12wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	20240702eccd28b3b9d6ede255e33afbf7686a12wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	20240702eccd28b3b9d6ede255e33afbf7686a12wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	20240702eccd28b3b9d6ede255e33afbf7686a12wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	20240702eccd28b3b9d6ede255e33afbf7686a12wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f003f000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	20240702eccd28b3b9d6ede255e33afbf7686a12wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6B858B10-E090-44C0-8173-6A979A1DA93F}	20240702eccd28b3b9d6ede255e33afbf7686a12wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{6B858B10-E090-44C0-8173-6A979A1DA93F}\WpadDecisionTime = c0168c18f3cdda01	20240702eccd28b3b9d6ede255e33afbf7686a12wannacry.exe

C:\Users\Admin\AppData\Local\Temp\20240702eccd28b3b9d6ede255e33afbf7686a12wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\20240702eccd28b3b9d6ede255e33afbf7686a12wannacry.exe"
1⤵
- Drops file in Windows directory
PID:2180

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:2548

C:\Users\Admin\AppData\Local\Temp\20240702eccd28b3b9d6ede255e33afbf7686a12wannacry.exe
C:\Users\Admin\AppData\Local\Temp\20240702eccd28b3b9d6ede255e33afbf7686a12wannacry.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2912

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
61436896815daf00e83de3898d096259

SHA1
ef77789007cc51fad5a3caf3b2c908992bbb3b1f

SHA256
4d327f9b2911640488018a7341e4d959d922891d5f278153c64519e32d614fdc

SHA512
dd4ea5c9f5229ca780bb16443f664f68074b57a8eb3eb51cfc94d1c842b0406f02d21086d4434cb127fd9ce8fb24bac17f7e779705e2e022166d7243d23487d2

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