wannacry | 273380e761312bb519d1a0774cdf7f1334e417fe23f90514c27e31f8104716d2

General

Target

2024-10-10_48bac2dba6ccf491a0b5edae84d29d20_wannacry.exe
Size

3.6MB
MD5

48bac2dba6ccf491a0b5edae84d29d20
SHA1

3823d56b5097f9e748b1db2741dfb4bbc94b8ed3
SHA256

273380e761312bb519d1a0774cdf7f1334e417fe23f90514c27e31f8104716d2
SHA512

a66fb72f996f58df0f282786937424ab44120987a2f86b5c43012da9b41d8c9b9dd6549b8b5ab7919a3f81f1ddc9803f8da5ad89dc37606fe889f25497a85dc5
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAAWv:yDqPoBhz1aRxcSUDk36SA/

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3265) 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
2248	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	2024-10-10_48bac2dba6ccf491a0b5edae84d29d20_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-10_48bac2dba6ccf491a0b5edae84d29d20_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	2024-10-10_48bac2dba6ccf491a0b5edae84d29d20_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-10_48bac2dba6ccf491a0b5edae84d29d20_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-10-10_48bac2dba6ccf491a0b5edae84d29d20_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-10_48bac2dba6ccf491a0b5edae84d29d20_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00a2000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-10_48bac2dba6ccf491a0b5edae84d29d20_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\72-66-90-87-b0-fc\WpadDecisionTime = 107c5bf16f1bdb01	2024-10-10_48bac2dba6ccf491a0b5edae84d29d20_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\72-66-90-87-b0-fc\WpadDecision = "0"	2024-10-10_48bac2dba6ccf491a0b5edae84d29d20_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-10_48bac2dba6ccf491a0b5edae84d29d20_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-10-10_48bac2dba6ccf491a0b5edae84d29d20_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-10-10_48bac2dba6ccf491a0b5edae84d29d20_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-10-10_48bac2dba6ccf491a0b5edae84d29d20_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-10-10_48bac2dba6ccf491a0b5edae84d29d20_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{53015660-B044-4B07-BCDC-B159A29E69C3}\WpadNetworkName = "Network 3"	2024-10-10_48bac2dba6ccf491a0b5edae84d29d20_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{53015660-B044-4B07-BCDC-B159A29E69C3}\72-66-90-87-b0-fc	2024-10-10_48bac2dba6ccf491a0b5edae84d29d20_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-10-10_48bac2dba6ccf491a0b5edae84d29d20_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-10-10_48bac2dba6ccf491a0b5edae84d29d20_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-10-10_48bac2dba6ccf491a0b5edae84d29d20_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{53015660-B044-4B07-BCDC-B159A29E69C3}\WpadDecisionTime = 107c5bf16f1bdb01	2024-10-10_48bac2dba6ccf491a0b5edae84d29d20_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\72-66-90-87-b0-fc	2024-10-10_48bac2dba6ccf491a0b5edae84d29d20_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\72-66-90-87-b0-fc\WpadDecisionReason = "1"	2024-10-10_48bac2dba6ccf491a0b5edae84d29d20_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-10_48bac2dba6ccf491a0b5edae84d29d20_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-10_48bac2dba6ccf491a0b5edae84d29d20_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-10-10_48bac2dba6ccf491a0b5edae84d29d20_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{53015660-B044-4B07-BCDC-B159A29E69C3}	2024-10-10_48bac2dba6ccf491a0b5edae84d29d20_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{53015660-B044-4B07-BCDC-B159A29E69C3}\WpadDecisionReason = "1"	2024-10-10_48bac2dba6ccf491a0b5edae84d29d20_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{53015660-B044-4B07-BCDC-B159A29E69C3}\WpadDecision = "0"	2024-10-10_48bac2dba6ccf491a0b5edae84d29d20_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-10_48bac2dba6ccf491a0b5edae84d29d20_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-10_48bac2dba6ccf491a0b5edae84d29d20_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2672
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2248

C:\Users\Admin\AppData\Local\Temp\2024-10-10_48bac2dba6ccf491a0b5edae84d29d20_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-10_48bac2dba6ccf491a0b5edae84d29d20_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2692

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
c797b112f8515cf959877216fe253696

SHA1
760ae44bdb27e508076cd6918001c883348d362d

SHA256
1dd21be7469718e50e735d169b2207f2d99aefe0429d1bd19367af45c13e88a3

SHA512
c06ed43e9fc02933485f5bba3ff7a21089cf281b089ae49ab65d26c6cfa3086db908a914ff401c6951b69ba9fc944cd13029ee8fc0e928c20cc65edd98b98b6b

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Analysis

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