wannacry | 4298725c1f46975007bf47bdea49062da9cc99c9456c1da9a2dccac2fb78f900

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19/01/2025, 02:45

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General

Target

2025-01-19_0dfbe354449a11d48528f7a30958d50a_wannacry.exe
Size

3.6MB
MD5

0dfbe354449a11d48528f7a30958d50a
SHA1

d2c5a9532ce5e3942be36f204f16ef00757c7ee8
SHA256

4298725c1f46975007bf47bdea49062da9cc99c9456c1da9a2dccac2fb78f900
SHA512

61aae062b0c698626233a4065080477eefb7dde3f6d6e3434856e0714b63f9323df89da828def58052c337fa245a846d0f5bdd3e1ac7d829686324e1d8b119c5
SSDEEP

98304:ZdPoBL1aRxcSUDk36SAEdhvxWa9P593R8yAVp2g3R:ZdPg1Cxcxk3ZAEUadzR8yc4gB

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 (3318) 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
4448	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	2025-01-19_0dfbe354449a11d48528f7a30958d50a_wannacry.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
5036	4448	WerFault.exe	83
3380	4448	WerFault.exe	83

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	2025-01-19_0dfbe354449a11d48528f7a30958d50a_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-19_0dfbe354449a11d48528f7a30958d50a_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	tasksche.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3692 wrote to memory of 4448	3692	2025-01-19_0dfbe354449a11d48528f7a30958d50a_wannacry.exe	83
PID 3692 wrote to memory of 4448	3692	2025-01-19_0dfbe354449a11d48528f7a30958d50a_wannacry.exe	83
PID 3692 wrote to memory of 4448	3692	2025-01-19_0dfbe354449a11d48528f7a30958d50a_wannacry.exe	83

C:\Users\Admin\AppData\Local\Temp\2025-01-19_0dfbe354449a11d48528f7a30958d50a_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-19_0dfbe354449a11d48528f7a30958d50a_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3692
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4448
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4448 -s 220
    3⤵
    - Program crash
    PID:5036
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4448 -s 224
    3⤵
    - Program crash
    PID:3380

C:\Users\Admin\AppData\Local\Temp\2025-01-19_0dfbe354449a11d48528f7a30958d50a_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-19_0dfbe354449a11d48528f7a30958d50a_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
PID:4100

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4448 -ip 4448
1⤵
PID:2996

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4448 -ip 4448
1⤵
PID:4648

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
cbf971479629e15c4157b1146dbff5e7

SHA1
55d28d58980ff4ff40d5464009b27e680bf00ec4

SHA256
c16a27ffd09bf186399309224528d71aace81d556d41cf3db0bac5b015a332ed

SHA512
22e5bee46052878202f2f6df07379e3c80a4f3cda46971e539c13212ff0f6adc0c9a73c8c54bcb73fab80b55aff77fb461369709881714b16a2c2a82c8875a1b

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