wannacry | bbb687754b36bc9f44715f14919dff9a7f90f3aed89015f26807458ebec2ee95

Analysis

max time kernel
150s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
29-09-2024 10:14

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General

Target

2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe
Size

5.0MB
MD5

d37ddabc0e5da8f5829d5df023283446
SHA1

b8bcc1d6ce4ab9379be5476a86168f7028bdb4c6
SHA256

bbb687754b36bc9f44715f14919dff9a7f90f3aed89015f26807458ebec2ee95
SHA512

a3851b37e04dd547d67fd6f8d0f2c76445d7c1c9fbf997688a450b14de7ee3f9016d12eee7acf5fc136834feb4f6bf5e1cd399f14161571695cf3195db72e799
SSDEEP

98304:XDqPoBhi1aRxcSUDk36SAEdhvxWa9P593R8yAVp2H:XDqPf1Cxcxk3ZAEUadzR8yc4H

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3159) 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
4500	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	2024-09-29_d37ddabc0e5da8f5829d5df023283446_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	2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1620
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:4500

C:\Users\Admin\AppData\Local\Temp\2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-29_d37ddabc0e5da8f5829d5df023283446_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2564

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
2e4f8ff13941baedbabc987368a1e720

SHA1
29089cba335601e4c4efb1f13c7b417f111efef1

SHA256
1df40962ca22e71f59c7041a72e2e12e203f6db9fb5eb0ea7fb96011be269e25

SHA512
2a12e4b001f475f9d56e399768f5949c8e4b45578160b9cd2287a338281a9b6b60c693deaf6bdb0fa65b9ef90884256b9f7ba583c9e9334686d4537f93f8e2cc

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