wannacry | 8adf3e6724d5c4d1fab78bc390b7479243318c9f571a26c9a2d05b1d90cf0dbb

Analysis

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

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17-01-2025 14:17

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General

Target

2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe
Size

5.0MB
MD5

bbfa63f5da238170ae8d43e3a522d459
SHA1

c8764218719b699ab40043bf46a9c32169d432c8
SHA256

8adf3e6724d5c4d1fab78bc390b7479243318c9f571a26c9a2d05b1d90cf0dbb
SHA512

f383cd16ecfd273f461838df744b6a3f8a1ef1e5dffa508156053e596ce62cc9bceb954989b8d2b65c54559a4c92c2eff90e4be72cd170c95cf9db333d8e02c0
SSDEEP

98304:yDpz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2H:yDB1Cxcxk3ZAEUadzR8yc4H

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 (3338) 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
3240	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	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
984	3240	WerFault.exe	84

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	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.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\	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4648 wrote to memory of 3240	4648	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe	84
PID 4648 wrote to memory of 3240	4648	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe	84
PID 4648 wrote to memory of 3240	4648	2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe	84

C:\Users\Admin\AppData\Local\Temp\2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4648
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3240
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3240 -s 224
    3⤵
    - Program crash
    PID:984

C:\Users\Admin\AppData\Local\Temp\2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-17_bbfa63f5da238170ae8d43e3a522d459_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2884

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3240 -ip 3240
1⤵
PID:3192

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
3.4MB

MD5
a848c62d74569affba05ee92d4033a36

SHA1
c2139d51d68e5244cf180ec047ff501226cb77bd

SHA256
c3f5e8d93aaed9bc2fd5fea724cd35c1affacb1679c1fdbb5acd3762582eb7b8

SHA512
a0e32e8e03183ecf687f546b64882bfba104067b68f13d1f9645c9c0b3b385e96719ed81701cb335b3f053a818c44c06e7f6ca6ccda3984590bf8fe67ea61896

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