wannacry | 7b67838c4111fa324caeabee6ca1a85fc9eb1569ed7d9b64207aa1d1bdb749fc

General

Target

2025-02-13_dc2d4c0b75c9f8f19c055c7f9bf103e2_wannacry.exe
Size

5.0MB
MD5

dc2d4c0b75c9f8f19c055c7f9bf103e2
SHA1

072bb8ecf84fa81ee005217dd858f8a832c43bf4
SHA256

7b67838c4111fa324caeabee6ca1a85fc9eb1569ed7d9b64207aa1d1bdb749fc
SHA512

052726dd7f9ad4e9122440290c52ad709efa252ffcd5ffa87741d6e9478365cecb20cdf8c37a526a3159b25d43cc7e837e8882bdad0a03a0439ceead1913ba60
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvd3R8yAVp2AZx:yDqPe1Cxcxk3ZAEhR8yc4A7

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 (3203) 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
2788	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	2025-02-13_dc2d4c0b75c9f8f19c055c7f9bf103e2_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-02-13_dc2d4c0b75c9f8f19c055c7f9bf103e2_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	2025-02-13_dc2d4c0b75c9f8f19c055c7f9bf103e2_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-13_dc2d4c0b75c9f8f19c055c7f9bf103e2_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1374943E-D767-4E68-9E10-3BD33983978C}\0a-9d-27-54-c3-7a	2025-02-13_dc2d4c0b75c9f8f19c055c7f9bf103e2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-9d-27-54-c3-7a\WpadDecisionReason = "1"	2025-02-13_dc2d4c0b75c9f8f19c055c7f9bf103e2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-02-13_dc2d4c0b75c9f8f19c055c7f9bf103e2_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-13_dc2d4c0b75c9f8f19c055c7f9bf103e2_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-02-13_dc2d4c0b75c9f8f19c055c7f9bf103e2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-02-13_dc2d4c0b75c9f8f19c055c7f9bf103e2_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1374943E-D767-4E68-9E10-3BD33983978C}\WpadDecisionTime = 6019b0b3447edb01	2025-02-13_dc2d4c0b75c9f8f19c055c7f9bf103e2_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1374943E-D767-4E68-9E10-3BD33983978C}\WpadNetworkName = "Network 3"	2025-02-13_dc2d4c0b75c9f8f19c055c7f9bf103e2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-9d-27-54-c3-7a	2025-02-13_dc2d4c0b75c9f8f19c055c7f9bf103e2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-9d-27-54-c3-7a\WpadDecision = "0"	2025-02-13_dc2d4c0b75c9f8f19c055c7f9bf103e2_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-13_dc2d4c0b75c9f8f19c055c7f9bf103e2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-02-13_dc2d4c0b75c9f8f19c055c7f9bf103e2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-02-13_dc2d4c0b75c9f8f19c055c7f9bf103e2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1374943E-D767-4E68-9E10-3BD33983978C}\WpadDecisionReason = "1"	2025-02-13_dc2d4c0b75c9f8f19c055c7f9bf103e2_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00a6000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-13_dc2d4c0b75c9f8f19c055c7f9bf103e2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1374943E-D767-4E68-9E10-3BD33983978C}	2025-02-13_dc2d4c0b75c9f8f19c055c7f9bf103e2_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-9d-27-54-c3-7a\WpadDecisionTime = 6019b0b3447edb01	2025-02-13_dc2d4c0b75c9f8f19c055c7f9bf103e2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-13_dc2d4c0b75c9f8f19c055c7f9bf103e2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-02-13_dc2d4c0b75c9f8f19c055c7f9bf103e2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-02-13_dc2d4c0b75c9f8f19c055c7f9bf103e2_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-02-13_dc2d4c0b75c9f8f19c055c7f9bf103e2_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-13_dc2d4c0b75c9f8f19c055c7f9bf103e2_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-02-13_dc2d4c0b75c9f8f19c055c7f9bf103e2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{1374943E-D767-4E68-9E10-3BD33983978C}\WpadDecision = "0"	2025-02-13_dc2d4c0b75c9f8f19c055c7f9bf103e2_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-02-13_dc2d4c0b75c9f8f19c055c7f9bf103e2_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-13_dc2d4c0b75c9f8f19c055c7f9bf103e2_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1952
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2788

C:\Users\Admin\AppData\Local\Temp\2025-02-13_dc2d4c0b75c9f8f19c055c7f9bf103e2_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-02-13_dc2d4c0b75c9f8f19c055c7f9bf103e2_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2060

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
59389f3a0e5ae5ed91c0bcf2e7e228dc

SHA1
d76904e8ce481b5a5ece5da850897b2d7088ebaa

SHA256
26fb67c887db11f22dc2de7c2d24b4433bdcc5c0ac3f2596ad53cd90cc70327e

SHA512
7339c9a84afc66a84307ca419e9cd3ad1427f7bd395a0f723db09540df12e4baafd4fe76ccd3a7eb584befd3e263f8bf68371f3ac06413c31ade429c0a6313d8

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