wannacry | 4b18d55901855f0a73c521e3983a2cf7afa930cfc90fa707964d0919cc2f8ad6

General

Target

2024-04-25_7f78ea0b34f2fedbd982fa9cfa2d6f95_wannacry.exe
Size

5.0MB
MD5

7f78ea0b34f2fedbd982fa9cfa2d6f95
SHA1

300de07d2214d15da1b638cdf9e176f00751fd8e
SHA256

4b18d55901855f0a73c521e3983a2cf7afa930cfc90fa707964d0919cc2f8ad6
SHA512

158271d4772b30dfb1bf0284cf8ac1e736932dd9022ab7bb77144ca6b963192f5e2b3994e7b85a94a05e297dc681e9b2fc73c1d64a026c62ae049f416a26de00
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAA:yDqPoBhz1aRxcSUDk36SA

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3288) 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

2588 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
2588	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

2024-04-25_7f78ea0b34f2fedbd982fa9cfa2d6f95_wannacry.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-04-25_7f78ea0b34f2fedbd982fa9cfa2d6f95_wannacry.exe

Drops file in Windows directory 1 IoCs

Processes:

2024-04-25_7f78ea0b34f2fedbd982fa9cfa2d6f95_wannacry.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 2024-04-25_7f78ea0b34f2fedbd982fa9cfa2d6f95_wannacry.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	2024-04-25_7f78ea0b34f2fedbd982fa9cfa2d6f95_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

Processes:

2024-04-25_7f78ea0b34f2fedbd982fa9cfa2d6f95_wannacry.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-04-25_7f78ea0b34f2fedbd982fa9cfa2d6f95_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{822F5F2E-9447-4FC2-9826-69DCB4956D38}\WpadDecision = "0"	2024-04-25_7f78ea0b34f2fedbd982fa9cfa2d6f95_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{822F5F2E-9447-4FC2-9826-69DCB4956D38}\WpadNetworkName = "Network 3"	2024-04-25_7f78ea0b34f2fedbd982fa9cfa2d6f95_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-bc-26-6c-29-8a\WpadDecisionReason = "1"	2024-04-25_7f78ea0b34f2fedbd982fa9cfa2d6f95_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-04-25_7f78ea0b34f2fedbd982fa9cfa2d6f95_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-04-25_7f78ea0b34f2fedbd982fa9cfa2d6f95_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-04-25_7f78ea0b34f2fedbd982fa9cfa2d6f95_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{822F5F2E-9447-4FC2-9826-69DCB4956D38}\WpadDecisionTime = 9069b0992097da01	2024-04-25_7f78ea0b34f2fedbd982fa9cfa2d6f95_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-bc-26-6c-29-8a\WpadDecisionTime = 9069b0992097da01	2024-04-25_7f78ea0b34f2fedbd982fa9cfa2d6f95_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-04-25_7f78ea0b34f2fedbd982fa9cfa2d6f95_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-04-25_7f78ea0b34f2fedbd982fa9cfa2d6f95_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-04-25_7f78ea0b34f2fedbd982fa9cfa2d6f95_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-04-25_7f78ea0b34f2fedbd982fa9cfa2d6f95_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-04-25_7f78ea0b34f2fedbd982fa9cfa2d6f95_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-04-25_7f78ea0b34f2fedbd982fa9cfa2d6f95_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{822F5F2E-9447-4FC2-9826-69DCB4956D38}	2024-04-25_7f78ea0b34f2fedbd982fa9cfa2d6f95_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{822F5F2E-9447-4FC2-9826-69DCB4956D38}\WpadDecisionReason = "1"	2024-04-25_7f78ea0b34f2fedbd982fa9cfa2d6f95_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-04-25_7f78ea0b34f2fedbd982fa9cfa2d6f95_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-04-25_7f78ea0b34f2fedbd982fa9cfa2d6f95_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-bc-26-6c-29-8a	2024-04-25_7f78ea0b34f2fedbd982fa9cfa2d6f95_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{822F5F2E-9447-4FC2-9826-69DCB4956D38}\06-bc-26-6c-29-8a	2024-04-25_7f78ea0b34f2fedbd982fa9cfa2d6f95_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\06-bc-26-6c-29-8a\WpadDecision = "0"	2024-04-25_7f78ea0b34f2fedbd982fa9cfa2d6f95_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-04-25_7f78ea0b34f2fedbd982fa9cfa2d6f95_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0109000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-04-25_7f78ea0b34f2fedbd982fa9cfa2d6f95_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-04-25_7f78ea0b34f2fedbd982fa9cfa2d6f95_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-04-25_7f78ea0b34f2fedbd982fa9cfa2d6f95_wannacry.exe"
1⤵
- Drops file in Windows directory
PID:3020

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:2588

C:\Users\Admin\AppData\Local\Temp\2024-04-25_7f78ea0b34f2fedbd982fa9cfa2d6f95_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-04-25_7f78ea0b34f2fedbd982fa9cfa2d6f95_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:2184

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

2

T1046

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Windows\tasksche.exe
Filesize
3.4MB

MD5
d87f0af7fb490aab30ae55c0898fb7e9

SHA1
d988b678b247bde283c670d42f96cff50de6b755

SHA256
22f30617787e7db1ff677a904f822465de123916fc6ab453c893d7b07811ade3

SHA512
a458b1ff98dfb81596d9693cae39c9e3917fb9bff25c7ed486a4090fcbf5e1ae61577fb3f7381a392257eabc60bef8edd11120fbb57f40a00e5f26b99e6a9a89

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