wannacry | 36a8616058e9cf6eb69e928bc3758f9ad335cb90df7a60acac7933f636632973

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
26-09-2024 16:40

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General

Target

20240926ef535af4c1addc6ad4ed95ea59cb386fwannacry.exe
Size

3.6MB
MD5

ef535af4c1addc6ad4ed95ea59cb386f
SHA1

9d92ce0db22a8ee95c35edb01a67da916fe15bcf
SHA256

36a8616058e9cf6eb69e928bc3758f9ad335cb90df7a60acac7933f636632973
SHA512

d7d671f0937c5c67df603702522c03a8f07bc73a1de5f7499d2126f576f2cfe89546ab7fd8454fdff92b44b30ab929ddf5b68a37692aad23ae8ffed7132a25a4
SSDEEP

49152:XnAQqMSPbcBVQej/1INRx+TSqTdX1HeAMEc:XDqPoBhz1aRxcSUDe5

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3140) 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
3336	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	20240926ef535af4c1addc6ad4ed95ea59cb386fwannacry.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	20240926ef535af4c1addc6ad4ed95ea59cb386fwannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	20240926ef535af4c1addc6ad4ed95ea59cb386fwannacry.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	20240926ef535af4c1addc6ad4ed95ea59cb386fwannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	20240926ef535af4c1addc6ad4ed95ea59cb386fwannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	20240926ef535af4c1addc6ad4ed95ea59cb386fwannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	20240926ef535af4c1addc6ad4ed95ea59cb386fwannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	20240926ef535af4c1addc6ad4ed95ea59cb386fwannacry.exe

C:\Users\Admin\AppData\Local\Temp\20240926ef535af4c1addc6ad4ed95ea59cb386fwannacry.exe
"C:\Users\Admin\AppData\Local\Temp\20240926ef535af4c1addc6ad4ed95ea59cb386fwannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:3928
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:3336

C:\Users\Admin\AppData\Local\Temp\20240926ef535af4c1addc6ad4ed95ea59cb386fwannacry.exe
C:\Users\Admin\AppData\Local\Temp\20240926ef535af4c1addc6ad4ed95ea59cb386fwannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:4388

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
4425c1cfb5351a4836a6f51d3b0cadda

SHA1
9d8762dacfe1f9cb1299ad8599ac3287ed2f4bcb

SHA256
b1de1fad922edd474fe2347a58cc6c77da2baa8d9a99f6305df22b05cda65946

SHA512
c9162cdb8e51884634d63335d7d92fad7d87418cb7bb86a80c622f16888e72eaded924f89b852dbef84323565aa9af1c5e62d89b61b2125d6dc961d6bd041af1

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