wannacry | 4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
14-01-2025 23:24

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General

Target

4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
Size

2.2MB
MD5

334248e1ecbf88c5c4f114abe23bbb65
SHA1

c126a5b7464633bb99792328c5c46fb32212791c
SHA256

4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890
SHA512

3a2cdcf366c9cd4aa911c66fe1fa6aa40fb10e3d5deafc7f6114c60ec1273c2636eef213935a39c716a5d6bf0049f2f41562da146885a66900912c2d475679ee
SSDEEP

24576:QbLguriIfEcQdIVUacMNgef0QeQjG/D8kIqRYoAdNLKz6626M+:QnpEKUacBVQej/1INRx+

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Wannacry family
wannacry
Contacts a large (3280) 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
2472	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 3 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
File created	C:\Windows\__tmp_rar_sfx_access_check_240634687	tasksche.exe
File created	C:\Windows\eee.exe	tasksche.exe

System Location Discovery: System Language Discovery 1 TTPs 3 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	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tasksche.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2408 wrote to memory of 2472	2408	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe	86
PID 2408 wrote to memory of 2472	2408	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe	86
PID 2408 wrote to memory of 2472	2408	4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe	86

C:\Users\Admin\AppData\Local\Temp\4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
"C:\Users\Admin\AppData\Local\Temp\4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2408
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  PID:2472

C:\Users\Admin\AppData\Local\Temp\4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe
C:\Users\Admin\AppData\Local\Temp\4227ae0496519669789431f6469f3f43cd9cde6f6da21db375c5944a72794890.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3084

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
2.0MB

MD5
a40cd4b80d0ab161a97ea275432dffd4

SHA1
22491ac1ff8f05f759b32f2819d138e64a87ac87

SHA256
ccc7d3a8cc20da1205bf484c83f731db23ebcd48b4712e3fb19a7f83f4cd3877

SHA512
11c655d38bfd38afa4188f379625ab02903476e7661bee30d1ea2f47ba9130b69d2a5d8f202d20a8a8c90287a7dae28ebbbae1672cafb5b7aeac4156ea36a64b

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