wannacry | 4bebb73aa972683e3c5cef607ecc7f9594412af89e9826e1c2bee29e4131a15f

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12-10-2024 04:59

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General

Target

2024-10-12_af9ca0c28097f501f3c3028f451637c0_wannacry.exe
Size

3.6MB
MD5

af9ca0c28097f501f3c3028f451637c0
SHA1

34170a51915630e494f52c28a0093f910a6779c2
SHA256

4bebb73aa972683e3c5cef607ecc7f9594412af89e9826e1c2bee29e4131a15f
SHA512

79dac3f2332757ebfb04225122ae25e8a8d25f52afa5ebcaae59946e773ecbc888a4274072071d5b4781ded1aded6ee19b9dbfdee1a4b875807e34e9f5b4ad6f
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAPxWa9P593CJf:yDqPe1Cxcxk3ZA4adzC1

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3361) 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
4736	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	2024-10-12_af9ca0c28097f501f3c3028f451637c0_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	2024-10-12_af9ca0c28097f501f3c3028f451637c0_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-12_af9ca0c28097f501f3c3028f451637c0_wannacry.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-10-12_af9ca0c28097f501f3c3028f451637c0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-10-12_af9ca0c28097f501f3c3028f451637c0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-10-12_af9ca0c28097f501f3c3028f451637c0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-10-12_af9ca0c28097f501f3c3028f451637c0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-10-12_af9ca0c28097f501f3c3028f451637c0_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-12_af9ca0c28097f501f3c3028f451637c0_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-12_af9ca0c28097f501f3c3028f451637c0_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1940
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:4736

C:\Users\Admin\AppData\Local\Temp\2024-10-12_af9ca0c28097f501f3c3028f451637c0_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-12_af9ca0c28097f501f3c3028f451637c0_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3364

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
e68b88738decb5d8f68a784ac7c44b55

SHA1
4689743c8f372118bd2499f58832f131961f6aeb

SHA256
3aa52ec513168503d533d9ea553082f8776883dfa17c34931a26006ad3f4901d

SHA512
272a89663941494a25d920dace18e36e7686f71365e6c058ee135c71aedf21ec90946921160f9bc68c939ec4951e6976044fd250e748f4defc10bd80eb02c4fb

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