wannacry | 1280ebac45076ce90f5039ffa1c35a49b81d5772bf2169714a2766a635eb1f7d

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
09-01-2025 20:47

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General

Target

2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe
Size

3.6MB
MD5

2c79989d98f98fa44e6708d38a431074
SHA1

7e940aec8b998b685c01496b955d1a60207b8b3e
SHA256

1280ebac45076ce90f5039ffa1c35a49b81d5772bf2169714a2766a635eb1f7d
SHA512

743b1ed6f579c99c9db023d4c63f752c8beaec5ac090ddf381aaf9b0e5f812ac9679115eb4b77b0629e4c542d9e93a97601bc467e91d1525ee0474ac8655b4dd
SSDEEP

12288:GvbLgPlu+QhM25NVErCA4z2g6rTcbckPU82900Ve7zw+K+D:2bLgddQhFMSirYbcMNgef0

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 (2433) 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
1276	tasksche.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1760	1276	WerFault.exe	85

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	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tasksche.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"	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4712 wrote to memory of 1276	4712	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe	85
PID 4712 wrote to memory of 1276	4712	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe	85
PID 4712 wrote to memory of 1276	4712	2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe	85

C:\Users\Admin\AppData\Local\Temp\2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4712
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1276
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1276 -s 220
    3⤵
    - Program crash
    PID:1760

C:\Users\Admin\AppData\Local\Temp\2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-09_2c79989d98f98fa44e6708d38a431074_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2200

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 1276 -ip 1276
1⤵
PID:2444

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
a80ebdcb178640521e2667d468bdbf95

SHA1
7b1b0debaa4418c2fef9c9d0c666e39c60a2e68e

SHA256
2d5b10fbf473c7b7110d53a7aa53bb7418e165aaa7de06e05cc6580da962a477

SHA512
b6de430507909868cc9f2e881cb98ba22ec367a65c52aab067321c7beb364b48703a75ae65a63c4f19a0dae8395259f869badd3ae251b28b576b1bd5a3bb0462

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