wannacry | 49a6e5226effecbfaccd90d16c7750f84c1840404a8cc1d428425e29df04e5ed

Analysis

max time kernel
120s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
16-12-2024 15:19

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General

Target

49a6e5226effecbfaccd90d16c7750f84c1840404a8cc1d428425e29df04e5edN.exe
Size

3.6MB
MD5

bc74083b51ddb74f1bf27319cea5a700
SHA1

3d92b8ec77319b30ed92c3dfafbb7cddf30b9af7
SHA256

49a6e5226effecbfaccd90d16c7750f84c1840404a8cc1d428425e29df04e5ed
SHA512

f8f5d9370db3d49d252fbbc9fe801d5be5d595f4a9106249fd3ec3a4d35431a87a96340f2d4a84eef0cc3164d849dbfa9c4c475727f752c98948ab0b17aeb47f
SSDEEP

24576:2bLgddQhfdmMSirYbcMNgef0LL7nEaut/8mE7A4kqAH1pNZtA0p+9XEkI:2nAQqMSPbcBVbEauA8yAH1plAHI

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 (2511) 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
1868	tasksche.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	49a6e5226effecbfaccd90d16c7750f84c1840404a8cc1d428425e29df04e5edN.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	49a6e5226effecbfaccd90d16c7750f84c1840404a8cc1d428425e29df04e5edN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	49a6e5226effecbfaccd90d16c7750f84c1840404a8cc1d428425e29df04e5edN.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	49a6e5226effecbfaccd90d16c7750f84c1840404a8cc1d428425e29df04e5edN.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	49a6e5226effecbfaccd90d16c7750f84c1840404a8cc1d428425e29df04e5edN.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	49a6e5226effecbfaccd90d16c7750f84c1840404a8cc1d428425e29df04e5edN.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	49a6e5226effecbfaccd90d16c7750f84c1840404a8cc1d428425e29df04e5edN.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	49a6e5226effecbfaccd90d16c7750f84c1840404a8cc1d428425e29df04e5edN.exe

C:\Users\Admin\AppData\Local\Temp\49a6e5226effecbfaccd90d16c7750f84c1840404a8cc1d428425e29df04e5edN.exe
"C:\Users\Admin\AppData\Local\Temp\49a6e5226effecbfaccd90d16c7750f84c1840404a8cc1d428425e29df04e5edN.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2756
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1868

C:\Users\Admin\AppData\Local\Temp\49a6e5226effecbfaccd90d16c7750f84c1840404a8cc1d428425e29df04e5edN.exe
C:\Users\Admin\AppData\Local\Temp\49a6e5226effecbfaccd90d16c7750f84c1840404a8cc1d428425e29df04e5edN.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:4736

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

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
5c11f805dc29014b001ec1cd63e48ca5

SHA1
ceb6f6cb05ca2187c8061e9a4291354860dd0510

SHA256
7feddcd13751565ab4820870305ec95816ecae17699bba66c9d7c5d66febf5e1

SHA512
3914a79dad7c70bdbe8d61730737c9c4a4ccfcfa985436c11bb4ccff085b56ca518a543d5989f9596dbf234189c4be5b6a21a6ee91101219c51984efc5c2a000

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