wannacry | 36c3e8d1f1a8a583c456853ea949d784f4b0654a2248f4a9764daa6d155d20cf

Analysis

max time kernel
150s
max time network
151s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
28-10-2024 11:08

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General

Target

2024-10-28_fd5e61012cdd7c49e9e7ab84faf2fec6_wannacry.exe
Size

3.6MB
MD5

fd5e61012cdd7c49e9e7ab84faf2fec6
SHA1

54f55fafa0a481f3df90b14580116b51d7f9cf0c
SHA256

36c3e8d1f1a8a583c456853ea949d784f4b0654a2248f4a9764daa6d155d20cf
SHA512

452c392196857bc07a1031bba5a38c5582f93803060680ea99a73969132fa56783f32b23387990184bc355a3c3d813e39a753661d6d19eba4b16906ad45d6867
SSDEEP

98304:Z8qPoBhz1aRxcSUDk36SAEdhvxWa9P5hAVp2HI:Z8qPe1Cxcxk3ZAEUadzc4HI

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 (3291) 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

Processes:

tasksche.exe

pid	Process
2736	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 System32 directory 1 IoCs

Processes:

2024-10-28_fd5e61012cdd7c49e9e7ab84faf2fec6_wannacry.exe

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-10-28_fd5e61012cdd7c49e9e7ab84faf2fec6_wannacry.exe

Drops file in Windows directory 1 IoCs

Processes:

2024-10-28_fd5e61012cdd7c49e9e7ab84faf2fec6_wannacry.exe

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-28_fd5e61012cdd7c49e9e7ab84faf2fec6_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

Processes:

2024-10-28_fd5e61012cdd7c49e9e7ab84faf2fec6_wannacry.exe2024-10-28_fd5e61012cdd7c49e9e7ab84faf2fec6_wannacry.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-28_fd5e61012cdd7c49e9e7ab84faf2fec6_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-28_fd5e61012cdd7c49e9e7ab84faf2fec6_wannacry.exe

Modifies data under HKEY_USERS 1 IoCs

Processes:

2024-10-28_fd5e61012cdd7c49e9e7ab84faf2fec6_wannacry.exe

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-28_fd5e61012cdd7c49e9e7ab84faf2fec6_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-28_fd5e61012cdd7c49e9e7ab84faf2fec6_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-28_fd5e61012cdd7c49e9e7ab84faf2fec6_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2332
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2736

C:\Users\Admin\AppData\Local\Temp\2024-10-28_fd5e61012cdd7c49e9e7ab84faf2fec6_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-28_fd5e61012cdd7c49e9e7ab84faf2fec6_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3020

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
91d820de88dda105b82e9e139dc2aec3

SHA1
fe59e1ccd5d8f485714f12c9398f0cbd292db9d8

SHA256
99ee9bbacd6957ad3b34ab7e08dec6e3f64a99465fc0efc7a0824b5d00a4fc63

SHA512
113bb0f5a5d354520c6166ca80017d78fc6c6d9c883fa1f994652fe1332c92205264cd88af1b713e622f05e981394b06ef2148152d88940e1ab0cca346b138ed

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