wannacry | cdc4cb8fce90a9e9f0004919a752f4b512f2058d005ee981b13783ae0c1636ea

General

Target

2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe
Size

3.6MB
MD5

a81078deab5b86473f2f8a17bb8b8574
SHA1

6ec265e0987d1a6add8a7736d81b3b1461d88237
SHA256

cdc4cb8fce90a9e9f0004919a752f4b512f2058d005ee981b13783ae0c1636ea
SHA512

b32ccc36039bb6d99bc87d28ae1706acab5ab583b83d14850c0402d5bdc8a852e8e5942fe02f7bf3d63702e5e16296c65e809043d32520d24ee4f6729bc64095
SSDEEP

98304:hWqPoBhz1aRxcSUDk36SAEdhvxWa9P593vHI:hWqPe1Cxcxk3ZAEUadzvHI

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 (3298) 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
2056	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	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_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	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_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"	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00b7000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DC355833-D7C6-480F-B4DC-9B45211214A9}\WpadNetworkName = "Network 3"	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a2-ee-eb-14-41-9b\WpadDecision = "0"	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a2-ee-eb-14-41-9b	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DC355833-D7C6-480F-B4DC-9B45211214A9}\a2-ee-eb-14-41-9b	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a2-ee-eb-14-41-9b\WpadDecisionReason = "1"	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DC355833-D7C6-480F-B4DC-9B45211214A9}	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DC355833-D7C6-480F-B4DC-9B45211214A9}\WpadDecisionReason = "1"	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DC355833-D7C6-480F-B4DC-9B45211214A9}\WpadDecision = "0"	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DC355833-D7C6-480F-B4DC-9B45211214A9}\WpadDecisionTime = 20ebca07b256db01	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a2-ee-eb-14-41-9b\WpadDecisionTime = 20ebca07b256db01	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2132
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2056

C:\Users\Admin\AppData\Local\Temp\2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-25_a81078deab5b86473f2f8a17bb8b8574_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2508

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
09aaff56d827bfa667fff13e73a17ac0

SHA1
335a4796b61c3ec4aeb28d3c14b133067a2a5b57

SHA256
41b4ff07e06612e5b6885ff3efb4c03651e91c3c84494ac141f285519a215b14

SHA512
2afac87ccac9c32d21b26867d6182d24498845b840820d4b025fd21b9902b17abcb6d01c07aea668eacec0ea20cc09998fe41a58aaa364482c80866a4ea81a9b

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Analysis

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