wannacry | ea7aea45960fce3998d5a10f40749a379e9df503d07bc8903915bd13d47a9cab

General

Target

2024-11-29_188be34b23a08035de32716ac933b3e6_wannacry.exe
Size

5.0MB
MD5

188be34b23a08035de32716ac933b3e6
SHA1

82df1ddc4b4115bfd309adc5f17be524ae25cd63
SHA256

ea7aea45960fce3998d5a10f40749a379e9df503d07bc8903915bd13d47a9cab
SHA512

c6d62293fc487afd42f5012a63290e423bcef3d09cabe3b5e5830369e7b42e5d32ea35e8b8ebe7a3c912d4e06527e456baa24d18bb1c73197574c0ca4484941f
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAAiplAH:yDqPoBhz1aRxcSUDk36SANp2H

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 (3305) 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
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

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	2024-11-29_188be34b23a08035de32716ac933b3e6_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-11-29_188be34b23a08035de32716ac933b3e6_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	2024-11-29_188be34b23a08035de32716ac933b3e6_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-29_188be34b23a08035de32716ac933b3e6_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-11-29_188be34b23a08035de32716ac933b3e6_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-11-29_188be34b23a08035de32716ac933b3e6_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-8c-4a-dc-d9-a2\WpadDecisionTime = 40e5e4745c42db01	2024-11-29_188be34b23a08035de32716ac933b3e6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-8c-4a-dc-d9-a2\WpadDecision = "0"	2024-11-29_188be34b23a08035de32716ac933b3e6_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-29_188be34b23a08035de32716ac933b3e6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-11-29_188be34b23a08035de32716ac933b3e6_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-11-29_188be34b23a08035de32716ac933b3e6_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-11-29_188be34b23a08035de32716ac933b3e6_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0126000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-29_188be34b23a08035de32716ac933b3e6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{72D47668-632F-4D2D-B454-B79DA9C0546B}	2024-11-29_188be34b23a08035de32716ac933b3e6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{72D47668-632F-4D2D-B454-B79DA9C0546B}\WpadDecisionReason = "1"	2024-11-29_188be34b23a08035de32716ac933b3e6_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{72D47668-632F-4D2D-B454-B79DA9C0546B}\WpadNetworkName = "Network 3"	2024-11-29_188be34b23a08035de32716ac933b3e6_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-11-29_188be34b23a08035de32716ac933b3e6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-29_188be34b23a08035de32716ac933b3e6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-8c-4a-dc-d9-a2\WpadDecisionReason = "1"	2024-11-29_188be34b23a08035de32716ac933b3e6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\16-8c-4a-dc-d9-a2	2024-11-29_188be34b23a08035de32716ac933b3e6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{72D47668-632F-4D2D-B454-B79DA9C0546B}\16-8c-4a-dc-d9-a2	2024-11-29_188be34b23a08035de32716ac933b3e6_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{72D47668-632F-4D2D-B454-B79DA9C0546B}\WpadDecisionTime = 40e5e4745c42db01	2024-11-29_188be34b23a08035de32716ac933b3e6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{72D47668-632F-4D2D-B454-B79DA9C0546B}\WpadDecision = "0"	2024-11-29_188be34b23a08035de32716ac933b3e6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-11-29_188be34b23a08035de32716ac933b3e6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-11-29_188be34b23a08035de32716ac933b3e6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-11-29_188be34b23a08035de32716ac933b3e6_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-11-29_188be34b23a08035de32716ac933b3e6_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-11-29_188be34b23a08035de32716ac933b3e6_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-29_188be34b23a08035de32716ac933b3e6_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-29_188be34b23a08035de32716ac933b3e6_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2412
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:3008

C:\Users\Admin\AppData\Local\Temp\2024-11-29_188be34b23a08035de32716ac933b3e6_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-29_188be34b23a08035de32716ac933b3e6_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2876

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
26cf9fc93d5a4d52d5e240566499332e

SHA1
456b6c1c2b8bc8d8708a16f192b4262438e92465

SHA256
1f4b9bcbf459dd07ba5b8a2482e67a210ddae6f8727929f8c4be30d187399614

SHA512
a5a9726342fe47c366b9a5e810f92ff8be5955e6338135245ce06c8f86028f4e736dde2b725d7df9890ff8a34c43d8ca3e29192ba8ea4bcca3720735f718a5d7

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Analysis

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