wannacry | 7fd5f9640611a1217e3b7095c1f4296930f17a8fe7c6c8547251d8e8a0f6c7f8

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13-12-2024 11:54

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General

Target

2024-12-13_ae10def9a06b05da68b06b3c5b7364a1_wannacry.exe
Size

5.0MB
MD5

ae10def9a06b05da68b06b3c5b7364a1
SHA1

abb3d9e83b4742bde5068694556cf69e0859c397
SHA256

7fd5f9640611a1217e3b7095c1f4296930f17a8fe7c6c8547251d8e8a0f6c7f8
SHA512

7b6c79f0055323fd1b6e672285cdbd445012ebecf2d83fc07a44dbdda5cdd0c71fca8431369b4c8cc1ac724c11276774cad2d5ff988a51463921a3b8cea21f40
SSDEEP

98304:Z8QBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2H:Z8m1Cxcxk3ZAEUadzR8yc4H

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 (3336) 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
2736	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 System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-12-13_ae10def9a06b05da68b06b3c5b7364a1_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-12-13_ae10def9a06b05da68b06b3c5b7364a1_wannacry.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	2024-12-13_ae10def9a06b05da68b06b3c5b7364a1_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-13_ae10def9a06b05da68b06b3c5b7364a1_wannacry.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-13_ae10def9a06b05da68b06b3c5b7364a1_wannacry.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2440 wrote to memory of 2736	2440	2024-12-13_ae10def9a06b05da68b06b3c5b7364a1_wannacry.exe	31
PID 2440 wrote to memory of 2736	2440	2024-12-13_ae10def9a06b05da68b06b3c5b7364a1_wannacry.exe	31
PID 2440 wrote to memory of 2736	2440	2024-12-13_ae10def9a06b05da68b06b3c5b7364a1_wannacry.exe	31
PID 2440 wrote to memory of 2736	2440	2024-12-13_ae10def9a06b05da68b06b3c5b7364a1_wannacry.exe	31

C:\Users\Admin\AppData\Local\Temp\2024-12-13_ae10def9a06b05da68b06b3c5b7364a1_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-13_ae10def9a06b05da68b06b3c5b7364a1_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2440
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2736

C:\Users\Admin\AppData\Local\Temp\2024-12-13_ae10def9a06b05da68b06b3c5b7364a1_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-13_ae10def9a06b05da68b06b3c5b7364a1_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2672

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
6fc655968b6b17697f9f789d06e1135b

SHA1
14623004663fd631586f8bad952f1b0782e5d05a

SHA256
b54370175c7ac74b35bf6913b62846e69f9914d19c2d27ee2f0c6393159e8e20

SHA512
da973cfb66acaa326b67e5905ef9f5e40e98f02c66a7711babca12affad410aa36bac8990f29080f80872262829b5f8353b94446b53f23ce5e122905a7533942

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