wannacry | b89a0c21a8462b4d7efd167713335254990478220f7e8ff812e30288eaab83d7

General

Target

2024-10-12_2f5cd0ad1c4dc41787bc8aa7eb6015ec_wannacry.exe
Size

3.6MB
MD5

2f5cd0ad1c4dc41787bc8aa7eb6015ec
SHA1

6a8ccf65724ff1c920273268d843cb35a97c8135
SHA256

b89a0c21a8462b4d7efd167713335254990478220f7e8ff812e30288eaab83d7
SHA512

5e3c54863d8d3353416c24ef4a049058e0393dfb5e2034d2c45acc8690c01e094ca2301d9736801607ba3b32d98b5a725076c0c6946903c311e29d844e8e879e
SSDEEP

12288:GvbLgPlu+QhMbaIMu7L5NVErCA4z2g6rTcbckPU82900Ve7zw+K+D:2bLgddQhfdmMSirYbcMNgef0

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3211) 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
1976	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	2024-10-12_2f5cd0ad1c4dc41787bc8aa7eb6015ec_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-12_2f5cd0ad1c4dc41787bc8aa7eb6015ec_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	2024-10-12_2f5cd0ad1c4dc41787bc8aa7eb6015ec_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_2f5cd0ad1c4dc41787bc8aa7eb6015ec_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	2024-10-12_2f5cd0ad1c4dc41787bc8aa7eb6015ec_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-12_2f5cd0ad1c4dc41787bc8aa7eb6015ec_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_2f5cd0ad1c4dc41787bc8aa7eb6015ec_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-12_2f5cd0ad1c4dc41787bc8aa7eb6015ec_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BB374277-0167-4697-9984-14812D1F123E}\WpadNetworkName = "Network 3"	2024-10-12_2f5cd0ad1c4dc41787bc8aa7eb6015ec_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a2-88-d5-a7-20-d3	2024-10-12_2f5cd0ad1c4dc41787bc8aa7eb6015ec_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a2-88-d5-a7-20-d3\WpadDecisionReason = "1"	2024-10-12_2f5cd0ad1c4dc41787bc8aa7eb6015ec_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_2f5cd0ad1c4dc41787bc8aa7eb6015ec_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-12_2f5cd0ad1c4dc41787bc8aa7eb6015ec_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-12_2f5cd0ad1c4dc41787bc8aa7eb6015ec_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-12_2f5cd0ad1c4dc41787bc8aa7eb6015ec_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-12_2f5cd0ad1c4dc41787bc8aa7eb6015ec_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BB374277-0167-4697-9984-14812D1F123E}	2024-10-12_2f5cd0ad1c4dc41787bc8aa7eb6015ec_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BB374277-0167-4697-9984-14812D1F123E}\a2-88-d5-a7-20-d3	2024-10-12_2f5cd0ad1c4dc41787bc8aa7eb6015ec_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-12_2f5cd0ad1c4dc41787bc8aa7eb6015ec_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-12_2f5cd0ad1c4dc41787bc8aa7eb6015ec_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BB374277-0167-4697-9984-14812D1F123E}\WpadDecisionTime = e0b56cb4591cdb01	2024-10-12_2f5cd0ad1c4dc41787bc8aa7eb6015ec_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-12_2f5cd0ad1c4dc41787bc8aa7eb6015ec_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-12_2f5cd0ad1c4dc41787bc8aa7eb6015ec_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00cb000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-12_2f5cd0ad1c4dc41787bc8aa7eb6015ec_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BB374277-0167-4697-9984-14812D1F123E}\WpadDecisionReason = "1"	2024-10-12_2f5cd0ad1c4dc41787bc8aa7eb6015ec_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BB374277-0167-4697-9984-14812D1F123E}\WpadDecision = "0"	2024-10-12_2f5cd0ad1c4dc41787bc8aa7eb6015ec_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a2-88-d5-a7-20-d3\WpadDecisionTime = e0b56cb4591cdb01	2024-10-12_2f5cd0ad1c4dc41787bc8aa7eb6015ec_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\a2-88-d5-a7-20-d3\WpadDecision = "0"	2024-10-12_2f5cd0ad1c4dc41787bc8aa7eb6015ec_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-12_2f5cd0ad1c4dc41787bc8aa7eb6015ec_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_2f5cd0ad1c4dc41787bc8aa7eb6015ec_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2096
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1976

C:\Users\Admin\AppData\Local\Temp\2024-10-12_2f5cd0ad1c4dc41787bc8aa7eb6015ec_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_2f5cd0ad1c4dc41787bc8aa7eb6015ec_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3068

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
bfc8604aa078386da683bb81d672b46d

SHA1
9879e41c001c9009d059927d0fc05355ca57e7f9

SHA256
4b7bcb822b1ccbbcc07bd6796e68ecf46ec9d2533a108a467b1cd316fa9f7969

SHA512
2eaf495c01d9753776f98d816b3b5097fe9551e9802584eb902c2ff11be0f83743e7c4a2d2d58044fda63b4bfc21d12d64b19882db4ee416b63e10fd4748d5e1

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