wannacry | 8fcbc80aa6c30b9d4a3a6404eb2d593186c50e85a66aa84408d4b600d29fd021

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
resource tags

arch:x64arch:x86image:win10v2004-20220414-enlocale:en-usos:windows10-2004-x64system
submitted
20/07/2022, 00:14

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General

Target
e08433353038ad755bf8b3abbc2c7bad.dll
Size 5.0MB
Sample220720-ajbvgahff2
SHA256 8fcbc80aa6c30b9d4a3a6404eb2d593186c50e85a66aa84408d4b600d29fd021
MD5 e08433353038ad755bf8b3abbc2c7bad
SHA1 679b5cf2405c6952c74ac89e8d397bb328562c50
SHA512 1c81fc270c713e83f3acfd5fcd55e66b8e2e514225006cf6339695300fa3556d668e102a63ce30576549c7cdbb792a64f908181566be526476affc7f0de1f7c2
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 (2914) 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
5052	mssecsvc.exe
2220	mssecsvc.exe
3468	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 Scanning
T1046

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

Modifies data under HKEY_USERS 5 IoCs

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

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3872 wrote to memory of 920	3872	rundll32.exe	80
PID 3872 wrote to memory of 920	3872	rundll32.exe	80
PID 3872 wrote to memory of 920	3872	rundll32.exe	80
PID 920 wrote to memory of 5052	920	rundll32.exe	81
PID 920 wrote to memory of 5052	920	rundll32.exe	81
PID 920 wrote to memory of 5052	920	rundll32.exe	81

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e08433353038ad755bf8b3abbc2c7bad.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3872
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\e08433353038ad755bf8b3abbc2c7bad.dll,#1
  2⤵
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:920
- - C:\WINDOWS\mssecsvc.exe
    C:\WINDOWS\mssecsvc.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Windows directory
    PID:5052
  - - C:\WINDOWS\tasksche.exe
      C:\WINDOWS\tasksche.exe /i
      4⤵
      Executes dropped EXE
      PID:3468

C:\WINDOWS\mssecsvc.exe
C:\WINDOWS\mssecsvc.exe -m security
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:2220

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 bf741fabfab88823ef02edd0fc58141e1cf065ff576dc37dd6714ca1d5937f60
MD5 f1e421fe552bd08b838795e83088cf22
SHA1 2b1229c0dde4f721c131be6f29fd25bdc15db305
SHA512 937fc8390364045f666a9539d98518e02d1e1c40314c385bf1fc0850f90ff495b2c28aa2aea3d23653c51dadb9fdab0bd185504a7190321966ba2a091b8d473c
SSDEEP 24576:2bLgddQhfdmMSirYbcMNgef0QeQvNZtA0p+9XEkI:2nAQqMSPbcBVQe4lAHI
MD5 SHA1 SHA512 SSDEEP

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mssecsvc.exe

Path C:\Windows\mssecsvc.exe
Size 3.6MB
SHA256 bf741fabfab88823ef02edd0fc58141e1cf065ff576dc37dd6714ca1d5937f60
MD5 f1e421fe552bd08b838795e83088cf22
SHA1 2b1229c0dde4f721c131be6f29fd25bdc15db305
SHA512 937fc8390364045f666a9539d98518e02d1e1c40314c385bf1fc0850f90ff495b2c28aa2aea3d23653c51dadb9fdab0bd185504a7190321966ba2a091b8d473c
SSDEEP 24576:2bLgddQhfdmMSirYbcMNgef0QeQvNZtA0p+9XEkI:2nAQqMSPbcBVQe4lAHI
MD5 SHA1 SHA512 SSDEEP

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mssecsvc.exe

Path C:\Windows\mssecsvc.exe
Size 3.6MB
SHA256 bf741fabfab88823ef02edd0fc58141e1cf065ff576dc37dd6714ca1d5937f60
MD5 f1e421fe552bd08b838795e83088cf22
SHA1 2b1229c0dde4f721c131be6f29fd25bdc15db305
SHA512 937fc8390364045f666a9539d98518e02d1e1c40314c385bf1fc0850f90ff495b2c28aa2aea3d23653c51dadb9fdab0bd185504a7190321966ba2a091b8d473c
SSDEEP 24576:2bLgddQhfdmMSirYbcMNgef0QeQvNZtA0p+9XEkI:2nAQqMSPbcBVQe4lAHI
MD5 SHA1 SHA512 SSDEEP

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tasksche.exe

Path C:\Windows\tasksche.exe
Size 3.4MB
SHA256 e3ec13c00d49102cb7088d717af16a3e78d558f6d64cfcf8312ce2de561524b9
MD5 b9b7922922480340d8449411aa8c3e6f
SHA1 fc2150b3227c501dec8bb710afcb3d9a87c47c75
SHA512 6809ba27785c2e75ffecb73fe97f793bb8c0260b5b8bbab33409af7cf9b0f07211e7a142da09b0d154e5ed42eeadada424a7ab3e1d6af762396fd86b60e5ac87
SSDEEP 24576:nQhfdmMSirYbcMNgef0QeQvNZtA0p+9XEkj:nQqMSPbcBVQe4lAHj
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