wannacry | 8272c9308f0e7dc5f470dcb831ff31f38e23d02ceb2cc43441607c880e0b7a93

Analysis

max time kernel
150s
max time network
155s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
27-09-2024 18:04

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General

Target

202409279e57c3cf695a4434c12fc7b7c26b4db0wannacry.exe
Size

3.6MB
MD5

9e57c3cf695a4434c12fc7b7c26b4db0
SHA1

c8ca93745275fca19541549f330131f2b5585869
SHA256

8272c9308f0e7dc5f470dcb831ff31f38e23d02ceb2cc43441607c880e0b7a93
SHA512

d335a5b1ff03ab362b3cf14412cd9a9e06920a235c2ba971909e03086e2f6604ee5df1752e53b553c4cbc1e4ebf269bb667564ab499b1fe4838e02eb8400e167
SSDEEP

98304:Z8qPoBhz18xcSUDk36SAEdhvxWa9P593N:Z8qPe18xcxk3ZAEUadzN

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3299) 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
2204	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	202409279e57c3cf695a4434c12fc7b7c26b4db0wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	202409279e57c3cf695a4434c12fc7b7c26b4db0wannacry.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	202409279e57c3cf695a4434c12fc7b7c26b4db0wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	202409279e57c3cf695a4434c12fc7b7c26b4db0wannacry.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	202409279e57c3cf695a4434c12fc7b7c26b4db0wannacry.exe

C:\Users\Admin\AppData\Local\Temp\202409279e57c3cf695a4434c12fc7b7c26b4db0wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\202409279e57c3cf695a4434c12fc7b7c26b4db0wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2436
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2204

C:\Users\Admin\AppData\Local\Temp\202409279e57c3cf695a4434c12fc7b7c26b4db0wannacry.exe
C:\Users\Admin\AppData\Local\Temp\202409279e57c3cf695a4434c12fc7b7c26b4db0wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1748

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
8f4a904f88a5f26855f187199226f581

SHA1
c0cfc6747026445b85c33b2a9f5cc432b469dd16

SHA256
658ee88359026c5c602656ac2f5a1bc373457d79ce1a6c881cf4078d482e5969

SHA512
19a1d133ec306fc4bbdf0576499601cb65ea69afec1db5ef7d53514b5bc9a2aec9de4c7241af7b0766f9e1bcc945317191b5e75f45b2d1819ec0f43df8e1a3b7

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