wannacry | 9c8d75e45761108fbcb0fa52dfa69197987f5ebc63546cd85e5b8d7d9828290f

General

Target

2025-01-08_80a3b0e1be457b61423e70189846e2d0_wannacry.exe
Size

3.6MB
MD5

80a3b0e1be457b61423e70189846e2d0
SHA1

b88158935108c040f768861fe3bd14e6b3111b04
SHA256

9c8d75e45761108fbcb0fa52dfa69197987f5ebc63546cd85e5b8d7d9828290f
SHA512

f04339e5cd21c2545ff2af792bb986056bd7963f27f832b0b34da571be8fce93a36d162a1e5e063c588f1826599c5e097d69c9cbc919c9f9a3351f2a7938f8aa
SSDEEP

24576:XbLgddQhfdmMSirYbcMNge71cPXTZd1+IE8SBk4GhGP5qfl8J0ax:XnAQqMSPbcBu1cPoykP5qN8yax

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 (3312) 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
1444	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	2025-01-08_80a3b0e1be457b61423e70189846e2d0_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-08_80a3b0e1be457b61423e70189846e2d0_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	2025-01-08_80a3b0e1be457b61423e70189846e2d0_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-08_80a3b0e1be457b61423e70189846e2d0_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-08_80a3b0e1be457b61423e70189846e2d0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\02-f2-da-ea-75-8c\WpadDecisionTime = 40d96cbdaf61db01	2025-01-08_80a3b0e1be457b61423e70189846e2d0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-08_80a3b0e1be457b61423e70189846e2d0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2025-01-08_80a3b0e1be457b61423e70189846e2d0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00ca000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-08_80a3b0e1be457b61423e70189846e2d0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\02-f2-da-ea-75-8c	2025-01-08_80a3b0e1be457b61423e70189846e2d0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2025-01-08_80a3b0e1be457b61423e70189846e2d0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2025-01-08_80a3b0e1be457b61423e70189846e2d0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2025-01-08_80a3b0e1be457b61423e70189846e2d0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2025-01-08_80a3b0e1be457b61423e70189846e2d0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8601E328-1EC7-4796-93FE-584D2E341690}	2025-01-08_80a3b0e1be457b61423e70189846e2d0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8601E328-1EC7-4796-93FE-584D2E341690}\WpadDecisionReason = "1"	2025-01-08_80a3b0e1be457b61423e70189846e2d0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8601E328-1EC7-4796-93FE-584D2E341690}\WpadDecision = "0"	2025-01-08_80a3b0e1be457b61423e70189846e2d0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8601E328-1EC7-4796-93FE-584D2E341690}\WpadNetworkName = "Network 3"	2025-01-08_80a3b0e1be457b61423e70189846e2d0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2025-01-08_80a3b0e1be457b61423e70189846e2d0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\02-f2-da-ea-75-8c\WpadDecisionReason = "1"	2025-01-08_80a3b0e1be457b61423e70189846e2d0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\02-f2-da-ea-75-8c\WpadDecision = "0"	2025-01-08_80a3b0e1be457b61423e70189846e2d0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8601E328-1EC7-4796-93FE-584D2E341690}\02-f2-da-ea-75-8c	2025-01-08_80a3b0e1be457b61423e70189846e2d0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2025-01-08_80a3b0e1be457b61423e70189846e2d0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2025-01-08_80a3b0e1be457b61423e70189846e2d0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-08_80a3b0e1be457b61423e70189846e2d0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2025-01-08_80a3b0e1be457b61423e70189846e2d0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{8601E328-1EC7-4796-93FE-584D2E341690}\WpadDecisionTime = 40d96cbdaf61db01	2025-01-08_80a3b0e1be457b61423e70189846e2d0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-08_80a3b0e1be457b61423e70189846e2d0_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-08_80a3b0e1be457b61423e70189846e2d0_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-08_80a3b0e1be457b61423e70189846e2d0_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2424
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1444

C:\Users\Admin\AppData\Local\Temp\2025-01-08_80a3b0e1be457b61423e70189846e2d0_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-08_80a3b0e1be457b61423e70189846e2d0_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2520

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
6338b8ee8ee2c042f74ccb3e99e7750b

SHA1
dfc909c2be82bc26519b413023e176a648e14c12

SHA256
2bdf03850ae71e1f8610e9b925a449a472b63f61eacbe1651460dc2314006bdb

SHA512
a120254cc5a50f475d5912c9a97c0962712638a89d03768698e501cc53cee3ccfd55d91fe70ea07b9fa68c0389ff6727d085618c406b4d6316f02e0737f9ce36

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Analysis

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