wannacry | 70ee02bdf8342425b6ef4b026831c9f4d80fe1c872a1671e853b258e18f07a38

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
28-09-2024 12:35

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General

Target

202409283471a30e3b718c96bd7c3ff5309e5b4awannacry.exe
Size

5.0MB
MD5

3471a30e3b718c96bd7c3ff5309e5b4a
SHA1

788278e93a6035052f7403c0c7323fb631d847a7
SHA256

70ee02bdf8342425b6ef4b026831c9f4d80fe1c872a1671e853b258e18f07a38
SHA512

9ea94aa4d44630a4e91896115a8006bf9dd6129c94a8a6b142c826f82f2c59d848f0aa870722e3b973faf57045935de5441f84a630787c4f104d9c4fea4664b2
SSDEEP

98304:yDqPoBhz1aRxcSUDkOxWa9P593R8yAVp2H:yDqPe1CxcxkBadzR8yc4H

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3281) 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
4252	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	202409283471a30e3b718c96bd7c3ff5309e5b4awannacry.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	202409283471a30e3b718c96bd7c3ff5309e5b4awannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	202409283471a30e3b718c96bd7c3ff5309e5b4awannacry.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	202409283471a30e3b718c96bd7c3ff5309e5b4awannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	202409283471a30e3b718c96bd7c3ff5309e5b4awannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	202409283471a30e3b718c96bd7c3ff5309e5b4awannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	202409283471a30e3b718c96bd7c3ff5309e5b4awannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	202409283471a30e3b718c96bd7c3ff5309e5b4awannacry.exe

C:\Users\Admin\AppData\Local\Temp\202409283471a30e3b718c96bd7c3ff5309e5b4awannacry.exe
"C:\Users\Admin\AppData\Local\Temp\202409283471a30e3b718c96bd7c3ff5309e5b4awannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:3200
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:4252

C:\Users\Admin\AppData\Local\Temp\202409283471a30e3b718c96bd7c3ff5309e5b4awannacry.exe
C:\Users\Admin\AppData\Local\Temp\202409283471a30e3b718c96bd7c3ff5309e5b4awannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2696

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
d40045aa596de512669b819085798efb

SHA1
fa99cc62b22f7895f6e1d72dad4a3f0574a46e20

SHA256
1f373e2833101d8c1433e78368ec430bd0fa7c688cdf7f219be767cdbb9325de

SHA512
795e675ba129ad57111f23e33ce7cd08e30f8116861ce9ed32df8f187cbe45ff674f456291114404724f494ec94b9e1018ba2e0f8d05f18fed30394e5141bd33

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