wannacry | 3bc72e1ad267bd52e559278b012aa7781ea3a2a2a66a5c912aac502d71adf697

General

Target

2024-07-24_f5b7fe7dd2124be6a88b43c0253233f4_wannacry.exe
Size

3.6MB
MD5

f5b7fe7dd2124be6a88b43c0253233f4
SHA1

694355766b5f063341c6e3b81c95771842432607
SHA256

3bc72e1ad267bd52e559278b012aa7781ea3a2a2a66a5c912aac502d71adf697
SHA512

05f5beea5d2761fb658be5ab0850265111f65f44e4ba7eed59094865027ac0a5780af62ed96bc835cc8f546330276a7fa661de0618c9f698c0efe2e868a29a4e
SSDEEP

98304:XDqPoBhz1aRxcSUDk36SAEdrWa9P593R8yAVp2HI:XDqPe1Cxcxk3ZAEgadzR8yc4HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3127) 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
2400	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	2024-07-24_f5b7fe7dd2124be6a88b43c0253233f4_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-07-24_f5b7fe7dd2124be6a88b43c0253233f4_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	2024-07-24_f5b7fe7dd2124be6a88b43c0253233f4_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-07-24_f5b7fe7dd2124be6a88b43c0253233f4_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-07-24_f5b7fe7dd2124be6a88b43c0253233f4_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-24_f5b7fe7dd2124be6a88b43c0253233f4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-07-24_f5b7fe7dd2124be6a88b43c0253233f4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{58C2C48A-5505-40D2-8CCC-016C25C0B3A1}	2024-07-24_f5b7fe7dd2124be6a88b43c0253233f4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{58C2C48A-5505-40D2-8CCC-016C25C0B3A1}\WpadDecisionReason = "1"	2024-07-24_f5b7fe7dd2124be6a88b43c0253233f4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\7e-31-8b-d6-4f-87	2024-07-24_f5b7fe7dd2124be6a88b43c0253233f4_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\7e-31-8b-d6-4f-87\WpadDecisionTime = 101bcf9f74ddda01	2024-07-24_f5b7fe7dd2124be6a88b43c0253233f4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-07-24_f5b7fe7dd2124be6a88b43c0253233f4_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-24_f5b7fe7dd2124be6a88b43c0253233f4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-07-24_f5b7fe7dd2124be6a88b43c0253233f4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-07-24_f5b7fe7dd2124be6a88b43c0253233f4_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-07-24_f5b7fe7dd2124be6a88b43c0253233f4_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-07-24_f5b7fe7dd2124be6a88b43c0253233f4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\7e-31-8b-d6-4f-87\WpadDecisionReason = "1"	2024-07-24_f5b7fe7dd2124be6a88b43c0253233f4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\7e-31-8b-d6-4f-87\WpadDecision = "0"	2024-07-24_f5b7fe7dd2124be6a88b43c0253233f4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-07-24_f5b7fe7dd2124be6a88b43c0253233f4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-07-24_f5b7fe7dd2124be6a88b43c0253233f4_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-07-24_f5b7fe7dd2124be6a88b43c0253233f4_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f007d000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-24_f5b7fe7dd2124be6a88b43c0253233f4_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{58C2C48A-5505-40D2-8CCC-016C25C0B3A1}\WpadDecisionTime = 101bcf9f74ddda01	2024-07-24_f5b7fe7dd2124be6a88b43c0253233f4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{58C2C48A-5505-40D2-8CCC-016C25C0B3A1}\7e-31-8b-d6-4f-87	2024-07-24_f5b7fe7dd2124be6a88b43c0253233f4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-07-24_f5b7fe7dd2124be6a88b43c0253233f4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{58C2C48A-5505-40D2-8CCC-016C25C0B3A1}\WpadDecision = "0"	2024-07-24_f5b7fe7dd2124be6a88b43c0253233f4_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{58C2C48A-5505-40D2-8CCC-016C25C0B3A1}\WpadNetworkName = "Network 3"	2024-07-24_f5b7fe7dd2124be6a88b43c0253233f4_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-07-24_f5b7fe7dd2124be6a88b43c0253233f4_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-24_f5b7fe7dd2124be6a88b43c0253233f4_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2532
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2400

C:\Users\Admin\AppData\Local\Temp\2024-07-24_f5b7fe7dd2124be6a88b43c0253233f4_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-07-24_f5b7fe7dd2124be6a88b43c0253233f4_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2696

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
8063e24d7e419abf8ccf52c9bf52d6c8

SHA1
065480f5a96cc3fc22735b6ed03b7f04d013a26e

SHA256
b3c6d93ed9f5b9a721d632b3da96e1af5566bd27bc0695d7c567685995e64ca5

SHA512
52202e27cacfc75e4a60937b770968b10cc9d1e8df65c9bd19f447751e683320c1928ff224a7f489e8402f50e85a15be701e6777b92237b7620700a878ea2faa

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