wannacry | 2b33bf908376f0920e5a2080320302d0e2156e8c7843cee70034d93611b763cb

General

Target

2024-09-30_8cac1af6e1bcb38bc8129965bff3e499_wannacry.exe
Size

3.6MB
MD5

8cac1af6e1bcb38bc8129965bff3e499
SHA1

d09cbc36bd232d82cd666682e693763f88019d72
SHA256

2b33bf908376f0920e5a2080320302d0e2156e8c7843cee70034d93611b763cb
SHA512

06a2b13011b97f3d0ebd701d76539591376e3d8df699d5bcf9d1a2a934de5a0555ba511fad3864908b7cff06c6ac4cf355c853629796370258b088f58608488b
SSDEEP

98304:yDqPoBORxcSUDk36SAEdhvxWa9myAVp2HI:yDqPZxcxk3ZAEUagyc4HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3200) 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
2696	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	2024-09-30_8cac1af6e1bcb38bc8129965bff3e499_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-30_8cac1af6e1bcb38bc8129965bff3e499_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	2024-09-30_8cac1af6e1bcb38bc8129965bff3e499_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-30_8cac1af6e1bcb38bc8129965bff3e499_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{95792F08-64FC-465F-BE05-60D46A5BD9C1}\WpadDecisionReason = "1"	2024-09-30_8cac1af6e1bcb38bc8129965bff3e499_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\62-50-97-c4-7f-40	2024-09-30_8cac1af6e1bcb38bc8129965bff3e499_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-30_8cac1af6e1bcb38bc8129965bff3e499_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-30_8cac1af6e1bcb38bc8129965bff3e499_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-09-30_8cac1af6e1bcb38bc8129965bff3e499_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00c7000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-30_8cac1af6e1bcb38bc8129965bff3e499_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{95792F08-64FC-465F-BE05-60D46A5BD9C1}\WpadNetworkName = "Network 3"	2024-09-30_8cac1af6e1bcb38bc8129965bff3e499_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\62-50-97-c4-7f-40\WpadDecision = "0"	2024-09-30_8cac1af6e1bcb38bc8129965bff3e499_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-30_8cac1af6e1bcb38bc8129965bff3e499_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-09-30_8cac1af6e1bcb38bc8129965bff3e499_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-09-30_8cac1af6e1bcb38bc8129965bff3e499_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{95792F08-64FC-465F-BE05-60D46A5BD9C1}	2024-09-30_8cac1af6e1bcb38bc8129965bff3e499_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-09-30_8cac1af6e1bcb38bc8129965bff3e499_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-09-30_8cac1af6e1bcb38bc8129965bff3e499_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-09-30_8cac1af6e1bcb38bc8129965bff3e499_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{95792F08-64FC-465F-BE05-60D46A5BD9C1}\WpadDecisionTime = f082f82b1413db01	2024-09-30_8cac1af6e1bcb38bc8129965bff3e499_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-09-30_8cac1af6e1bcb38bc8129965bff3e499_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-09-30_8cac1af6e1bcb38bc8129965bff3e499_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-30_8cac1af6e1bcb38bc8129965bff3e499_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-09-30_8cac1af6e1bcb38bc8129965bff3e499_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{95792F08-64FC-465F-BE05-60D46A5BD9C1}\62-50-97-c4-7f-40	2024-09-30_8cac1af6e1bcb38bc8129965bff3e499_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{95792F08-64FC-465F-BE05-60D46A5BD9C1}\WpadDecision = "0"	2024-09-30_8cac1af6e1bcb38bc8129965bff3e499_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\62-50-97-c4-7f-40\WpadDecisionReason = "1"	2024-09-30_8cac1af6e1bcb38bc8129965bff3e499_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\62-50-97-c4-7f-40\WpadDecisionTime = f082f82b1413db01	2024-09-30_8cac1af6e1bcb38bc8129965bff3e499_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-30_8cac1af6e1bcb38bc8129965bff3e499_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-30_8cac1af6e1bcb38bc8129965bff3e499_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2220
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2696

C:\Users\Admin\AppData\Local\Temp\2024-09-30_8cac1af6e1bcb38bc8129965bff3e499_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-30_8cac1af6e1bcb38bc8129965bff3e499_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2092

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
ea5d696dcfc0105e624cace9fd446661

SHA1
5141cede58ee9d6a1b5f3a475204437162ad5044

SHA256
dbe37c132889727f03b53a921a3fb658c99a6b93d9fb98a3d94c10e4ca5723b2

SHA512
e44ff67e7a75e73a0ad8cdeaad432853341298c7ade8d195156c9d3b37066c211d1eb0b0a289234e81de5725a2d250a35ac5d0bafe88e977b93807ac84d0a864

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