wannacry | 1ac6af4f2f1483f8518072b6f17d2b3c0178599620f0da85f98a1b40f1465259

General

Target

2024-12-13_248b257c4a97c3a8b817d5ae8b30d059_wannacry.exe
Size

5.0MB
MD5

248b257c4a97c3a8b817d5ae8b30d059
SHA1

a751784725ebc0593e37a81a1980916ed78ff9a7
SHA256

1ac6af4f2f1483f8518072b6f17d2b3c0178599620f0da85f98a1b40f1465259
SHA512

0194f053a50aa02e4335250a009d8da4d39dd8afb8ef0a30f6807bdc14aa5c08dab7fe2171675179541f54a13827d7a303cd4c6682932ecf68fce7d56ee72e4b
SSDEEP

49152:2nAQqMSPbcBVQejxxJM0H9PAMEcaEaue5c/bXZROAx:yDqPoBh9xWa9P59Uc/J

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Wannacry family
wannacry
Contacts a large (3318) 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
2260	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	2024-12-13_248b257c4a97c3a8b817d5ae8b30d059_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-12-13_248b257c4a97c3a8b817d5ae8b30d059_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	2024-12-13_248b257c4a97c3a8b817d5ae8b30d059_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-13_248b257c4a97c3a8b817d5ae8b30d059_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\a6-11-c3-90-b8-a1\WpadDecisionReason = "1"	2024-12-13_248b257c4a97c3a8b817d5ae8b30d059_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a6-11-c3-90-b8-a1\WpadDecision = "0"	2024-12-13_248b257c4a97c3a8b817d5ae8b30d059_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-12-13_248b257c4a97c3a8b817d5ae8b30d059_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-13_248b257c4a97c3a8b817d5ae8b30d059_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-12-13_248b257c4a97c3a8b817d5ae8b30d059_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-12-13_248b257c4a97c3a8b817d5ae8b30d059_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-12-13_248b257c4a97c3a8b817d5ae8b30d059_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-13_248b257c4a97c3a8b817d5ae8b30d059_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-12-13_248b257c4a97c3a8b817d5ae8b30d059_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E7A3206B-B098-4D4F-86F5-A176114A80BF}\WpadDecisionReason = "1"	2024-12-13_248b257c4a97c3a8b817d5ae8b30d059_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E7A3206B-B098-4D4F-86F5-A176114A80BF}\WpadNetworkName = "Network 3"	2024-12-13_248b257c4a97c3a8b817d5ae8b30d059_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a6-11-c3-90-b8-a1	2024-12-13_248b257c4a97c3a8b817d5ae8b30d059_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E7A3206B-B098-4D4F-86F5-A176114A80BF}	2024-12-13_248b257c4a97c3a8b817d5ae8b30d059_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E7A3206B-B098-4D4F-86F5-A176114A80BF}\a6-11-c3-90-b8-a1	2024-12-13_248b257c4a97c3a8b817d5ae8b30d059_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a6-11-c3-90-b8-a1\WpadDecisionTime = b0391a82544ddb01	2024-12-13_248b257c4a97c3a8b817d5ae8b30d059_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-13_248b257c4a97c3a8b817d5ae8b30d059_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-13_248b257c4a97c3a8b817d5ae8b30d059_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-12-13_248b257c4a97c3a8b817d5ae8b30d059_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-12-13_248b257c4a97c3a8b817d5ae8b30d059_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00af000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-13_248b257c4a97c3a8b817d5ae8b30d059_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-13_248b257c4a97c3a8b817d5ae8b30d059_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-12-13_248b257c4a97c3a8b817d5ae8b30d059_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E7A3206B-B098-4D4F-86F5-A176114A80BF}\WpadDecisionTime = b0391a82544ddb01	2024-12-13_248b257c4a97c3a8b817d5ae8b30d059_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{E7A3206B-B098-4D4F-86F5-A176114A80BF}\WpadDecision = "0"	2024-12-13_248b257c4a97c3a8b817d5ae8b30d059_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-13_248b257c4a97c3a8b817d5ae8b30d059_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-13_248b257c4a97c3a8b817d5ae8b30d059_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2408
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2260

C:\Users\Admin\AppData\Local\Temp\2024-12-13_248b257c4a97c3a8b817d5ae8b30d059_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-13_248b257c4a97c3a8b817d5ae8b30d059_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1788

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
51a15b3aef21fc8c14e6d349c97e5587

SHA1
488d441757a3cde129fe7d73d704ea4965cb2188

SHA256
d66c5e9f0cf6591428950b04c977408960c5c3dce91bc5f109fc8debf52ff970

SHA512
db3ab889c2625d5057b181dbcd8339bfb4d1a77d613ae98f2b015b18c050a3e8f05ade11763df58cec8df77d930fd46221525b8a6be63b64b5714baff6c039e5

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Analysis

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