wannacry | 7f4b708137ae129c1593958858d258496dd06d95efb1aac4b56fdeea970c62f7

Analysis

max time kernel
152s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20220718-en
resource tags

arch:x64arch:x86image:win10v2004-20220718-enlocale:en-usos:windows10-2004-x64system
submitted
20/07/2022, 02:29

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General

Target
ff8ea49196528799c0fdb1e47ed5e3ec.dll
Size 5.0MB
Sample220720-cykf9sbaa2
SHA256 7f4b708137ae129c1593958858d258496dd06d95efb1aac4b56fdeea970c62f7
MD5 ff8ea49196528799c0fdb1e47ed5e3ec
SHA1 094bd6f96d579758ec5bcb309120af21d8565bbc
SHA512 1f549f5c1ac0dac40584020e3752838c93b1a457986ab4568776739619488421dd60e4dcf6d242c1fc6a8284e83d22792ef8ae6db52b716e2f98f330a5b72fe3
MD5 SHA1 SHA512

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (2543) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Scanning
T1046

Executes dropped EXE 3 IoCs

pid	Process
1080	mssecsvc.exe
4768	mssecsvc.exe
4980	tasksche.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\WINDOWS\mssecsvc.exe	rundll32.exe
File created	C:\WINDOWS\tasksche.exe	mssecsvc.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3648 wrote to memory of 3336	3648	rundll32.exe	77
PID 3648 wrote to memory of 3336	3648	rundll32.exe	77
PID 3648 wrote to memory of 3336	3648	rundll32.exe	77
PID 3336 wrote to memory of 1080	3336	rundll32.exe	78
PID 3336 wrote to memory of 1080	3336	rundll32.exe	78
PID 3336 wrote to memory of 1080	3336	rundll32.exe	78

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ff8ea49196528799c0fdb1e47ed5e3ec.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3648
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ff8ea49196528799c0fdb1e47ed5e3ec.dll,#1
  2⤵
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:3336
- - C:\WINDOWS\mssecsvc.exe
    C:\WINDOWS\mssecsvc.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Windows directory
    PID:1080
  - - C:\WINDOWS\tasksche.exe
      C:\WINDOWS\tasksche.exe /i
      4⤵
      Executes dropped EXE
      PID:4980

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe -m security
1⤵
- Executes dropped EXE
PID:4768

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Scanning

T1046

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

mssecsvc.exe

Path C:\WINDOWS\mssecsvc.exe
Size 3.6MB
SHA256 a21698ec8147b90042869f968bb134a09366699db63544f065e56999b90f19f4
MD5 fd7714ecf54ed62bd8a079175cdf60fe
SHA1 d0b07924b76c4a1aec9d59d67d7022474e47dcfd
SHA512 9439cc648ed9beb0c7017932f9cf956545047c64d263fb44f667f6865fc48be9e3a44261766c09d26757ac990ab92d22f8811f1922bef0b8d42b2c48635687f0
SSDEEP 98304:y8qPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2PI:y8qPe1Cxcxk3ZAEUadzR8yc4PI
MD5 SHA1 SHA512 SSDEEP

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mssecsvc.exe

Path C:\Windows\mssecsvc.exe
Size 3.6MB
SHA256 a21698ec8147b90042869f968bb134a09366699db63544f065e56999b90f19f4
MD5 fd7714ecf54ed62bd8a079175cdf60fe
SHA1 d0b07924b76c4a1aec9d59d67d7022474e47dcfd
SHA512 9439cc648ed9beb0c7017932f9cf956545047c64d263fb44f667f6865fc48be9e3a44261766c09d26757ac990ab92d22f8811f1922bef0b8d42b2c48635687f0
SSDEEP 98304:y8qPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2PI:y8qPe1Cxcxk3ZAEUadzR8yc4PI
MD5 SHA1 SHA512 SSDEEP

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mssecsvc.exe

Path C:\Windows\mssecsvc.exe
Size 3.6MB
SHA256 a21698ec8147b90042869f968bb134a09366699db63544f065e56999b90f19f4
MD5 fd7714ecf54ed62bd8a079175cdf60fe
SHA1 d0b07924b76c4a1aec9d59d67d7022474e47dcfd
SHA512 9439cc648ed9beb0c7017932f9cf956545047c64d263fb44f667f6865fc48be9e3a44261766c09d26757ac990ab92d22f8811f1922bef0b8d42b2c48635687f0
SSDEEP 98304:y8qPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2PI:y8qPe1Cxcxk3ZAEUadzR8yc4PI
MD5 SHA1 SHA512 SSDEEP

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tasksche.exe

Path C:\Windows\tasksche.exe
Size 3.4MB
SHA256 0ddef7acfdff6f07d415548ac0ebd022534f8ad725e94acec4b3f1660bc66ab4
MD5 fc9c1d282075ad5f323a527d191b66f0
SHA1 f6b1c944d90d736229567f702be1b640f101bcd7
SHA512 69d4ccefd8edf27add09c691388849f54a70abefb62825d3f5d507448bb6f55e985848297ec2fcbdca755ff3e142aa0eea9f60a25e48aec03f77e04ecefac1e2
SSDEEP 98304:QqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2Pj:QqPe1Cxcxk3ZAEUadzR8yc4Pj
MD5 SHA1 SHA512 SSDEEP

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads