wannacry | bb88ce32092bae167487213d1aa7d8eee071bb7324faa0da36f7bd08ae3ce77a

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240910-en
resource tags

arch:x64arch:x86image:win10v2004-20240910-enlocale:en-usos:windows10-2004-x64system
submitted
28-09-2024 10:00

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General

Target

2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe
Size

5.0MB
MD5

adf2cc82dd943eaf15d31722b17a9a96
SHA1

bba4fc025fea5db838116128f0209c4ff6471356
SHA256

bb88ce32092bae167487213d1aa7d8eee071bb7324faa0da36f7bd08ae3ce77a
SHA512

20873faeb3401730f58f5fe8a7ee387d4c1acce31a2d18b3697ba9e5db52fcd9af83dc2493a71697f1c3833f1d0cf03f3c6b6560bc01878d0cf8f1f53b67c4dc
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SA+593R8yAVp2H:yDqPe1Cxcxk3ZA+zR8yc4H

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3213) 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
2656	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	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_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	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:536
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2656

C:\Users\Admin\AppData\Local\Temp\2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-28_adf2cc82dd943eaf15d31722b17a9a96_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1448

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
805370d531bdcc1f52da429d669bcae2

SHA1
cd6e3ef5e3819db23eaa8d4a6d22e11cac78b793

SHA256
dfd28f866327baa8e3d2ed43a203e62aeb272154f40822209b207da6b70d0edb

SHA512
82a93173c44ed80ff80e593b768956259c5cdb5e489e51bba9f2a4995db4cc6721851b0e66ec41564d6f3cbad6f7bfcf9b4af752392832b624718c9c7e8ffe4f

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