wannacry | 6aaf7f2665f77ae5b9ab560abcab5fdeb95bbfabba1922daa9509547dec78931

Resubmissions

28-01-2025 02:32

250128-c1nlpstrbw 10

25-01-2025 23:18

250125-3ase3stmgw 10

Analysis

max time kernel
56s
max time network
58s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20250113-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20250113-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
28-01-2025 02:32

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General

Target

2025-01-25_cafff9fcf64d3db867bf6c0bb6917e5e_wannacry.exe
Size

5.0MB
MD5

cafff9fcf64d3db867bf6c0bb6917e5e
SHA1

327e9782b0bf99fa6060f3a971c97c1a7c41dece
SHA256

6aaf7f2665f77ae5b9ab560abcab5fdeb95bbfabba1922daa9509547dec78931
SHA512

46f5fbcd316eae7129f6650887eb6d38866f7616b6ecc96b4ba379a83ef75b8bda60cf74ebf0a7ee431d021d9ab9303e5c71e0f915d62c5bb828031c1e8c42b3
SSDEEP

49152:XnAQqMSPbcBVQej/1Wx+TSqTdXHVKzT6SAARdh:XDqPoBhz1WxcSUjKzT6SAEdh

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Wannacry family
wannacry
Contacts a large (735) 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
2072	tasksche.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-25_cafff9fcf64d3db867bf6c0bb6917e5e_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	2025-01-25_cafff9fcf64d3db867bf6c0bb6917e5e_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-25_cafff9fcf64d3db867bf6c0bb6917e5e_wannacry.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-25_cafff9fcf64d3db867bf6c0bb6917e5e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2025-01-25_cafff9fcf64d3db867bf6c0bb6917e5e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2025-01-25_cafff9fcf64d3db867bf6c0bb6917e5e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2025-01-25_cafff9fcf64d3db867bf6c0bb6917e5e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2025-01-25_cafff9fcf64d3db867bf6c0bb6917e5e_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-25_cafff9fcf64d3db867bf6c0bb6917e5e_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-25_cafff9fcf64d3db867bf6c0bb6917e5e_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:5084
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2072

C:\Users\Admin\AppData\Local\Temp\2025-01-25_cafff9fcf64d3db867bf6c0bb6917e5e_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-25_cafff9fcf64d3db867bf6c0bb6917e5e_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:536

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

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
a56fed8a8a3fed1c79209334f1c2e67b

SHA1
0d81e451ba2486307d258354f681b008d93a60af

SHA256
641a44c7a3b811376afef0489492bc3bb5f333dd70b767b9d28dd31e44b17e57

SHA512
509ddfb636beb5a2d27b7e87e5be4b9a9fe09c691627516ea54d3e79d5a1cc23d429c5553c51984941a0e744f41e1937b2215c136664ab12438c9f01f626eecb

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