wannacry | 3ec5029b4fcfc8d06a3f7c13d77492a820ae16f3ddf08799f5b8764ae366852c

Analysis

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

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
25-12-2024 10:32

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General

Target

2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe
Size

5.0MB
MD5

929106faad5dba31b540295444b7ffb0
SHA1

a7b332919eab4d9d39f05bd3c4451572772931c6
SHA256

3ec5029b4fcfc8d06a3f7c13d77492a820ae16f3ddf08799f5b8764ae366852c
SHA512

a0c7622ef4dbf8161f8feb7bbd2c1cfb144fe1a23dcf2395af10a3d88d195d71257f0a00decad35048c149782bbc6542529d1945e703d37a4d239ab4b72a6407
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8:yDqPe1Cxcxk3ZAEUadzR8

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 (3221) 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
1932	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	2024-12-25_929106faad5dba31b540295444b7ffb0_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	2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-25_929106faad5dba31b540295444b7ffb0_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\UNCAsIntranet = "1"	2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:4028
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1932

C:\Users\Admin\AppData\Local\Temp\2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2176

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
2b160169f573067fe9932060075e017d

SHA1
ef58afdeb7da12360e45a6ddaadb50d7d79bfbc7

SHA256
021043e408e2bcaa67e12aa5a0cbffc833451eb3202b9b9d059fdb84be7a2e42

SHA512
09d25aaad4036be37016c331764b4f62adf87c75dca72c0e206712b49e2b3376c39933b1b6626ae9c19a507123e4195ad8cbeb1a357289f340d602249c9c36a2

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