wannacry | bd45eaf34858917fca6aa2b846f5cf9382440cd91d12ba307cf9a7ef805205b9

General

Target

2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe
Size

5.0MB
MD5

e1610231b159795f7cf87396bf55fa7d
SHA1

ae211213d7a54e39d11f87b20824e846825dc298
SHA256

bd45eaf34858917fca6aa2b846f5cf9382440cd91d12ba307cf9a7ef805205b9
SHA512

733babd104616d1d949dfb64228d6e944c1885b39edee83a306643a627b877ee61aa439940eb5f2fdeb4497d530ce688f96fe1635469662bf9c127a9284de40e
SSDEEP

24576:2bLgddQhfdmMSirYbcMNgef0QeQjG/D8kIqRYo:2nAQqMSPbcBVQej/1

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3318) 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
2128	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	2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-07-28_e1610231b159795f7cf87396bf55fa7d_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	2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-07-28_e1610231b159795f7cf87396bf55fa7d_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\UNCAsIntranet = "0"	2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0029000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{628927CA-D3BB-4A12-85B4-6D016E88B34D}\WpadDecision = "0"	2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{628927CA-D3BB-4A12-85B4-6D016E88B34D}	2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5a-41-02-ef-44-6a\WpadDecisionReason = "1"	2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5a-41-02-ef-44-6a\WpadDecision = "0"	2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{628927CA-D3BB-4A12-85B4-6D016E88B34D}\5a-41-02-ef-44-6a	2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{628927CA-D3BB-4A12-85B4-6D016E88B34D}\WpadDecisionReason = "1"	2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{628927CA-D3BB-4A12-85B4-6D016E88B34D}\WpadDecisionTime = 5010625fd9e1da01	2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{628927CA-D3BB-4A12-85B4-6D016E88B34D}\WpadNetworkName = "Network 3"	2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5a-41-02-ef-44-6a	2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5a-41-02-ef-44-6a\WpadDecisionTime = 5010625fd9e1da01	2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2660
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2128

C:\Users\Admin\AppData\Local\Temp\2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-07-28_e1610231b159795f7cf87396bf55fa7d_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2984

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
47361f7289fe529520e8f95492fc6717

SHA1
fdc74e998bdcf17bcb532b4d787af683ff7b2809

SHA256
5b7c9d99c3c0b8aa114651a26fe85269e650fa86b5dc6585bca5943242be42ba

SHA512
ec1ea955a63f2a99284d2a6dee3a445abcdd4435929d547d5183fcae4426fc71616493da9d9c1b4b8b4a76eaad2a67ce47f3bdabedf2f5c53a0015d83705f312

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Analysis

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