wannacry | 3a4142bb454973a2ecabd30c9aeb19f4256db628c76c30419fca9b05a72e4100

Analysis

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

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
27-09-2024 17:25

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General

Target

2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe
Size

3.6MB
MD5

aeb61db0e0c106aae391dca03c395916
SHA1

e9102c9cbd1c2972acf8f10a3345fc9db425852a
SHA256

3a4142bb454973a2ecabd30c9aeb19f4256db628c76c30419fca9b05a72e4100
SHA512

6d2dc14d1b705737499c5e7d6a2770b5a739c4c0300fe31291ebf7f9f24a068e239412eaa26f8fbfba3d4f8d47b5a0e5469ad1027f4ec8d3c0996e5ce9c94093
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhv3593R8yAVp2o:yDqPe1Cxcxk3ZAErzR8yc4o

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3219) 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
2404	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	2024-09-27_aeb61db0e0c106aae391dca03c395916_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	2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:3688
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2404

C:\Users\Admin\AppData\Local\Temp\2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-27_aeb61db0e0c106aae391dca03c395916_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3224

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
1bf1cd3692496cd34a878f33054e3850

SHA1
01218e2f43b685f773b715a75af63f92ac81ea76

SHA256
94d0514809be19d9f3793658f3f498bf1381dbda0ecbf5b6bedf5d152cb66aff

SHA512
cdacc5caa3986f4d94b05df4d187b2eefe25dedb0f0d3d59b400a7107d4d5f0ce303f786b4602a18af137d32609a624ab3d32810cf2dab4993208f3ae221e235

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