wannacry | c8c53f25f6118bb1645a12b198fe1cb8b99ceb417df5a1d0a210ac720fba33de

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
24/05/2024, 05:43

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General

Target
mssecsvc.exe
Size 3.6MB
Sample240524-ger48afd76
SHA256 95ab184ecc89b9a593c024963650f54fe0a597c3f75d75ff3bf4f33f648c6d13
MD5 41b5ba4bf74e65845fa8c9861ca34508
SHA1 427934d7fa2467bab1abfa5959c8cf6d0ae00ea7
SHA512 ef55010669b1098df68c511d6863082abcc2ed4af78d933a1fb8dad347893eebc44ade3e41b3fe296a11dd3cf026bdb0d8359dd759569df5d7b37f9294921a48
SSDEEP 98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2HJ:yDqPe1Cxcxk3ZAEUadzR8yc4HJ
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3348) 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
1176	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	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

C:\Users\Admin\AppData\Local\Temp\mssecsvc.exe
"C:\Users\Admin\AppData\Local\Temp\mssecsvc.exe"
1⤵
- Drops file in Windows directory
PID:5008
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1176

C:\Users\Admin\AppData\Local\Temp\mssecsvc.exe
C:\Users\Admin\AppData\Local\Temp\mssecsvc.exe -m security
1⤵
- Modifies data under HKEY_USERS
PID:216

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

T1046

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

tasksche.exe

Path C:\Windows\tasksche.exe
Size 3.4MB
SHA256 802d815d1cd9e4193cf586124622bde16ecb5d7127a1c0aa9a13d1e3e46f564a
MD5 c906087fbfe90924bc4f903e527e52e8
SHA1 0ce9bd4724cae1edc5141e6c8074ad5fcaf9fc6a
SHA512 c479f547bf5e79cfab2985173f200583047e7f47ac565b248ccae802d2e4633cb410a7c502d4923fa6f34d6ca9bd77f898d3ef001a1a42c8939aff861a35457b
SSDEEP 98304:QqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2H5:QqPe1Cxcxk3ZAEUadzR8yc4H5
MD5 SHA1 SHA512 SSDEEP

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