wannacry | 40b9c43e3706da73ec85603295fc439fc65fb2f02f0e7b8d3a616dcc843a16dd

General

Target

2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Size

5.0MB
MD5

44737be8132f090ccc6bccb8ee9fb151
SHA1

a4306384898ff40825eadbd9acf0dda9894b47d9
SHA256

40b9c43e3706da73ec85603295fc439fc65fb2f02f0e7b8d3a616dcc843a16dd
SHA512

fbdd5f5c53c101717cb1c7435f7a8d167143494a23bb5f4d976d44ed97a65cea8d67669047d0b178bdbab51a7ca3e2eee3ab8210171d1501737460a04410f3f8
SSDEEP

49152:QnpEKUacBVvj/1INRx+TSqTdX1HkQo6SAARdhnv:QpyfBRz1aRxcSUDk36SAEdhv

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 (3291) 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
4704	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\eee.exe	tasksche.exe
File created	C:\WINDOWS\tasksche.exe	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
File created	C:\Windows\__tmp_rar_sfx_access_check_240628578	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	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tasksche.exe

Modifies data under HKEY_USERS 12 IoCs

description	ioc	Process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P\History	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\P3P	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3972 wrote to memory of 4704	3972	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe	83
PID 3972 wrote to memory of 4704	3972	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe	83
PID 3972 wrote to memory of 4704	3972	2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe	83

C:\Users\Admin\AppData\Local\Temp\2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3972
- 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:4704

C:\Users\Admin\AppData\Local\Temp\2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-03_44737be8132f090ccc6bccb8ee9fb151_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1580

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

2

T1046

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\tasksche.exe

Filesize
2.0MB

MD5
62026b2faca396412df69415995b29a1

SHA1
9974078ee11ec90e390a3b17d79e0f159efa2972

SHA256
202d1bcdbd639000e37b871155e7471bc1eec9d5c87e355585fc1bbf4888913d

SHA512
84eb197fa511b9d8f58e53888927142463f1ae71470bf48fd5305b65ee0db74f823a7cda47c8e0c98d1e67d18465f8fd452ee69dc989bcea71119d5a6fd1ad5a

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Analysis

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