wannacry | b05845d73604d9a17d72de5d9db27e59a89e6a979fbc71a384646a558b88de82

Analysis

max time kernel
150s
max time network
153s
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, 00:28

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
9e9dfb912cc29bceb2de772bdba98ed6.dll
Size 5.0MB
Sample220720-asb7laacan
SHA256 b05845d73604d9a17d72de5d9db27e59a89e6a979fbc71a384646a558b88de82
MD5 9e9dfb912cc29bceb2de772bdba98ed6
SHA1 cfa8667066ab6df9b15606f82336d6f376e08b33
SHA512 7f1fb1c53f1434f5a5683af5078f076c4320e0f6f27c91e5e5287d845dbbcfa361677cf4be0e06a47acb7401666a22e21db6a2ff1366c885254f39e41e8cf02b
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 (3121) 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 2 IoCs

pid	Process
3444	mssecsvr.exe
4796	mssecsvr.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\mssecsvr.exe	rundll32.exe
File created	C:\WINDOWS\tasksche.exe	mssecsvr.exe

Modifies data under HKEY_USERS 5 IoCs

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

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2492 wrote to memory of 3124	2492	rundll32.exe	76
PID 2492 wrote to memory of 3124	2492	rundll32.exe	76
PID 2492 wrote to memory of 3124	2492	rundll32.exe	76
PID 3124 wrote to memory of 3444	3124	rundll32.exe	77
PID 3124 wrote to memory of 3444	3124	rundll32.exe	77
PID 3124 wrote to memory of 3444	3124	rundll32.exe	77

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\9e9dfb912cc29bceb2de772bdba98ed6.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2492
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\9e9dfb912cc29bceb2de772bdba98ed6.dll,#1
  2⤵
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:3124
- - C:\WINDOWS\mssecsvr.exe
    C:\WINDOWS\mssecsvr.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Windows directory
    PID:3444

C:\WINDOWS\mssecsvr.exe
C:\WINDOWS\mssecsvr.exe -m security
1⤵
- Executes dropped EXE
- Modifies data under HKEY_USERS
PID:4796

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

Replay Monitor

Loading Replay Monitor...

Downloads

mssecsvr.exe

Path C:\WINDOWS\mssecsvr.exe
Size 2.2MB
SHA256 6d5250a042c13b9e852eef5703f77ff75ad8d6f9a96d1b37da3ffc5aabf3039d
MD5 5e3ca4c522d45ff57923e81534aeb0a8
SHA1 174eb1f6d696229a533fa7914690dabd674bd212
SHA512 5fd09942662007bdb8eacfccf2252a5792a3e2c328c4d6a9f1309b9439e13bc41991d7605e473f251052a739b286c5b730447df3ac625fd31e53afe629da0cfa
SSDEEP 12288:eQbLgmluyQhMbaIMu7L5NVErCA4z2g6rTcbckPU82900Ve7zw+K+DHeQYSUjEXF5:VbLguVQhfdmMSirYbcMNgef0QeQjG
MD5 SHA1 SHA512 SSDEEP

Submit Download

mssecsvr.exe

Path C:\Windows\mssecsvr.exe
Size 2.2MB
SHA256 6d5250a042c13b9e852eef5703f77ff75ad8d6f9a96d1b37da3ffc5aabf3039d
MD5 5e3ca4c522d45ff57923e81534aeb0a8
SHA1 174eb1f6d696229a533fa7914690dabd674bd212
SHA512 5fd09942662007bdb8eacfccf2252a5792a3e2c328c4d6a9f1309b9439e13bc41991d7605e473f251052a739b286c5b730447df3ac625fd31e53afe629da0cfa
SSDEEP 12288:eQbLgmluyQhMbaIMu7L5NVErCA4z2g6rTcbckPU82900Ve7zw+K+DHeQYSUjEXF5:VbLguVQhfdmMSirYbcMNgef0QeQjG
MD5 SHA1 SHA512 SSDEEP

Submit Download

mssecsvr.exe

Path C:\Windows\mssecsvr.exe
Size 2.2MB
SHA256 6d5250a042c13b9e852eef5703f77ff75ad8d6f9a96d1b37da3ffc5aabf3039d
MD5 5e3ca4c522d45ff57923e81534aeb0a8
SHA1 174eb1f6d696229a533fa7914690dabd674bd212
SHA512 5fd09942662007bdb8eacfccf2252a5792a3e2c328c4d6a9f1309b9439e13bc41991d7605e473f251052a739b286c5b730447df3ac625fd31e53afe629da0cfa
SSDEEP 12288:eQbLgmluyQhMbaIMu7L5NVErCA4z2g6rTcbckPU82900Ve7zw+K+DHeQYSUjEXF5:VbLguVQhfdmMSirYbcMNgef0QeQjG
MD5 SHA1 SHA512 SSDEEP

Submit Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads