wannacry | 6cb32f39e73eb93288ce5483fbb0c8c2eb3c0762dcbc1d09e5f37f07ddd9ba47

Analysis

max time kernel
150s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
13-11-2024 14:41

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General

Target

2024-11-13_cf5ab85c061585acbcdbf232585585f4_wannacry.exe
Size

5.0MB
MD5

cf5ab85c061585acbcdbf232585585f4
SHA1

1486af9c1508df9d8a93800727667b14958e7965
SHA256

6cb32f39e73eb93288ce5483fbb0c8c2eb3c0762dcbc1d09e5f37f07ddd9ba47
SHA512

29e3f948aef815a3d236b3009dcf3e509d7c6cc35b6cf54261a524cc0d6ce7694c5659328e9e50ff4f1e96484ec9bc934602f78a313d98cdae925c7cb184ce85
SSDEEP

49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1Hk1Rdhnv:yDqPoBhz1aRxcSUDkHdhv

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 (3247) 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
1816	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	2024-11-13_cf5ab85c061585acbcdbf232585585f4_wannacry.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	2024-11-13_cf5ab85c061585acbcdbf232585585f4_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-13_cf5ab85c061585acbcdbf232585585f4_wannacry.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"	2024-11-13_cf5ab85c061585acbcdbf232585585f4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-11-13_cf5ab85c061585acbcdbf232585585f4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-11-13_cf5ab85c061585acbcdbf232585585f4_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-11-13_cf5ab85c061585acbcdbf232585585f4_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-11-13_cf5ab85c061585acbcdbf232585585f4_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-11-13_cf5ab85c061585acbcdbf232585585f4_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-13_cf5ab85c061585acbcdbf232585585f4_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:3600
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1816

C:\Users\Admin\AppData\Local\Temp\2024-11-13_cf5ab85c061585acbcdbf232585585f4_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-11-13_cf5ab85c061585acbcdbf232585585f4_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3672

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
2ad4acf7b46e1700bc3f0ffecae97a92

SHA1
b7b71970ad395e2b10c86b78d7f31ddaaaf954e9

SHA256
8323b79b4c746bbb1f4feb2dec28913f588d28dd92e0eb914f3fd7a8482af884

SHA512
07cc74a1958f1944a23a9461dcd88dc8351824f170e1025f4ec2ec97a4ee8fc66ee2e7901bdf8c48517aa5a81e4522fba8c1490175ed1be3ee222c6e04711075

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