wannacry | 924f9eeca5ce2588986fb63b952a0155a94f6cab90791a3edb965327417ebc20

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08-10-2024 11:41

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General

Target

2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe
Size

5.0MB
MD5

a31b10f53f9396112562345d261f8d7f
SHA1

15aa84fe1acd0784da4b7ba627c29e514aad36e4
SHA256

924f9eeca5ce2588986fb63b952a0155a94f6cab90791a3edb965327417ebc20
SHA512

a67ec8a510dda734eeefc57b665f00d7e7113f39d8f0bd129c8b0ed335ac0aa70203aa308567e281bc5619024ded3d94682bc2686ce567b21271a71b81e0b314
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P5cBXo:yDqPe1Cxcxk3ZAEUadkY

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3229) 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
4832	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 Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-08_a31b10f53f9396112562345d261f8d7f_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	2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1756
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:4832

C:\Users\Admin\AppData\Local\Temp\2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-08_a31b10f53f9396112562345d261f8d7f_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:452

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

T1046

System Location Discovery

T1614

System Language Discovery

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
5d6d5b09e3dc49d8b8cf9fb8e0b08ee2

SHA1
fac016a3d13ab9273298e41d5347bd1b2147916d

SHA256
32646a69e25ce54ba7491236947a1cf72d3803c985a296bc79fa4ef44a58ac81

SHA512
fa9bbb950a30d27c11bd5d379c134c0ff04c2200ab0573df0f66c75ab45918172a3196fd4fa68ecea143d16dde937e779d8a90981a7890b8c7a4ef33ad606073

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