wannacry | c77eb13d251c6fc0ed34d433c0a5c4b79f349b34b224f915c98947dafe512431

General

Target

2025-02-01_e4450f9070f6af0cf6c1fe2455a9bb19_wannacry.exe
Size

5.0MB
MD5

e4450f9070f6af0cf6c1fe2455a9bb19
SHA1

86ffdff42f2ed4f831db320dfaa077250576f085
SHA256

c77eb13d251c6fc0ed34d433c0a5c4b79f349b34b224f915c98947dafe512431
SHA512

5d508a9034e2c754c97bd455a5546c46ac718515fd7d7199956f6fd1f366a00db0bab5ea3e6346531f8f88559aa3c17e8599f437a614ec8285cbb584258ca8e2
SSDEEP

49152:XnAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAA:XDqPoBhz1aRxcSUDk36SA

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 (3221) 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
2964	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	2025-02-01_e4450f9070f6af0cf6c1fe2455a9bb19_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-02-01_e4450f9070f6af0cf6c1fe2455a9bb19_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	2025-02-01_e4450f9070f6af0cf6c1fe2455a9bb19_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-01_e4450f9070f6af0cf6c1fe2455a9bb19_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D4CA67B8-4434-4625-92C7-25204A40C614}\e6-9e-b1-be-82-d6	2025-02-01_e4450f9070f6af0cf6c1fe2455a9bb19_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-01_e4450f9070f6af0cf6c1fe2455a9bb19_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-02-01_e4450f9070f6af0cf6c1fe2455a9bb19_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-01_e4450f9070f6af0cf6c1fe2455a9bb19_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-02-01_e4450f9070f6af0cf6c1fe2455a9bb19_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00db000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-01_e4450f9070f6af0cf6c1fe2455a9bb19_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D4CA67B8-4434-4625-92C7-25204A40C614}\WpadDecision = "0"	2025-02-01_e4450f9070f6af0cf6c1fe2455a9bb19_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e6-9e-b1-be-82-d6	2025-02-01_e4450f9070f6af0cf6c1fe2455a9bb19_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-02-01_e4450f9070f6af0cf6c1fe2455a9bb19_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D4CA67B8-4434-4625-92C7-25204A40C614}	2025-02-01_e4450f9070f6af0cf6c1fe2455a9bb19_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D4CA67B8-4434-4625-92C7-25204A40C614}\WpadDecisionReason = "1"	2025-02-01_e4450f9070f6af0cf6c1fe2455a9bb19_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D4CA67B8-4434-4625-92C7-25204A40C614}\WpadDecisionTime = 809f953ad274db01	2025-02-01_e4450f9070f6af0cf6c1fe2455a9bb19_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D4CA67B8-4434-4625-92C7-25204A40C614}\WpadNetworkName = "Network 3"	2025-02-01_e4450f9070f6af0cf6c1fe2455a9bb19_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e6-9e-b1-be-82-d6\WpadDecision = "0"	2025-02-01_e4450f9070f6af0cf6c1fe2455a9bb19_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-02-01_e4450f9070f6af0cf6c1fe2455a9bb19_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-02-01_e4450f9070f6af0cf6c1fe2455a9bb19_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-02-01_e4450f9070f6af0cf6c1fe2455a9bb19_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e6-9e-b1-be-82-d6\WpadDecisionTime = 809f953ad274db01	2025-02-01_e4450f9070f6af0cf6c1fe2455a9bb19_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-02-01_e4450f9070f6af0cf6c1fe2455a9bb19_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-02-01_e4450f9070f6af0cf6c1fe2455a9bb19_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-02-01_e4450f9070f6af0cf6c1fe2455a9bb19_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-02-01_e4450f9070f6af0cf6c1fe2455a9bb19_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-02-01_e4450f9070f6af0cf6c1fe2455a9bb19_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\e6-9e-b1-be-82-d6\WpadDecisionReason = "1"	2025-02-01_e4450f9070f6af0cf6c1fe2455a9bb19_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-02-01_e4450f9070f6af0cf6c1fe2455a9bb19_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-01_e4450f9070f6af0cf6c1fe2455a9bb19_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2444
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2964

C:\Users\Admin\AppData\Local\Temp\2025-02-01_e4450f9070f6af0cf6c1fe2455a9bb19_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-02-01_e4450f9070f6af0cf6c1fe2455a9bb19_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2360

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

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
76d06d2096fe49ac97c2bf21709bbba4

SHA1
a7df08006ceafb441271c615c2e1d67218ba81a1

SHA256
945f2bb56bfef539d0404194bb7a7ac1f79b2307c33c8b196078c7b16bba098c

SHA512
b29a68783506989f55eaf6bf160ab285f4579e62e8ca01ad9ef3f4cfd460832a703641a52332a4880b3f8e5d5a63cde897776dd2756b9b9e930280e8dcfd0031

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