wannacry | f36cd461618c48c8d8cf629f108088dab4d81228b942e9a155aed0442aeb72f5

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
10-09-2024 14:48

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General

Target

20240910c93db2f47557d0b85e52399288cd710bwannacry.exe
Size

5.0MB
MD5

c93db2f47557d0b85e52399288cd710b
SHA1

34a17cc33db13d7ef60e09b64fa45ad4bfe113a8
SHA256

f36cd461618c48c8d8cf629f108088dab4d81228b942e9a155aed0442aeb72f5
SHA512

15268c011bbac94c522f32aac0082ba131a21199e8612a7446b443fff335bc0c6e9f20c6f1eaff6292b60961286cfd564fd9933e169ba71d019ece3ef3a804e0
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9LG5CRxvb5aj:yDqPe1Cxcxk3ZAEUa0Ynb5

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3248) 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
1292	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	20240910c93db2f47557d0b85e52399288cd710bwannacry.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	20240910c93db2f47557d0b85e52399288cd710bwannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	20240910c93db2f47557d0b85e52399288cd710bwannacry.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"	20240910c93db2f47557d0b85e52399288cd710bwannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	20240910c93db2f47557d0b85e52399288cd710bwannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	20240910c93db2f47557d0b85e52399288cd710bwannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	20240910c93db2f47557d0b85e52399288cd710bwannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	20240910c93db2f47557d0b85e52399288cd710bwannacry.exe

C:\Users\Admin\AppData\Local\Temp\20240910c93db2f47557d0b85e52399288cd710bwannacry.exe
"C:\Users\Admin\AppData\Local\Temp\20240910c93db2f47557d0b85e52399288cd710bwannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1696
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1292

C:\Users\Admin\AppData\Local\Temp\20240910c93db2f47557d0b85e52399288cd710bwannacry.exe
C:\Users\Admin\AppData\Local\Temp\20240910c93db2f47557d0b85e52399288cd710bwannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:224

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
97696d5c99f35a12007b5010944f6615

SHA1
9f3e300de6a18ca274e6b762c8dd35a7195f73bb

SHA256
860185214d80c72e9f7ea3009d232eb0f4b5a85691f939f246488ab5c1e18f48

SHA512
85291e4bda60cf5f22a68db459da3fe118f7596eed18b47019bd7a5583203bdfe392f0caa14e4a13e597cf139a986a02438189abff529ca11c63a9ac92465a56

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