wannacry | 103b77c99246d14e4e1b79440ff392acf4413a4f7712a7a3cf199fe72719b4b6

Analysis

max time kernel
150s
max time network
156s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11-10-2024 00:51

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General

Target

2024-10-11_854df00ba4d7ea09b5d77660dc805d14_wannacry.exe
Size

3.6MB
MD5

854df00ba4d7ea09b5d77660dc805d14
SHA1

ffe063d2a525e40a5cb55a684e62c67900644eee
SHA256

103b77c99246d14e4e1b79440ff392acf4413a4f7712a7a3cf199fe72719b4b6
SHA512

2a14bd6c6ce43cc06ca76c7f2d1179e3fe6cd75488a539957e83ad30f8ab6f8b2e46a0da2c99cc157b1b0c7ad917817e26282fef4fac461e3228a1e6745f3825
SSDEEP

49152:VnjQqMSPbcBVv/1INRx+TSqTdX1HkQo6SAARdhnv:Z8qPoBl1aRxcSUDk36SAEdhv

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3261) 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
1696	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	2024-10-11_854df00ba4d7ea09b5d77660dc805d14_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-11_854df00ba4d7ea09b5d77660dc805d14_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	2024-10-11_854df00ba4d7ea09b5d77660dc805d14_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-11_854df00ba4d7ea09b5d77660dc805d14_wannacry.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-11_854df00ba4d7ea09b5d77660dc805d14_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-11_854df00ba4d7ea09b5d77660dc805d14_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-11_854df00ba4d7ea09b5d77660dc805d14_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1692
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1696

C:\Users\Admin\AppData\Local\Temp\2024-10-11_854df00ba4d7ea09b5d77660dc805d14_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-11_854df00ba4d7ea09b5d77660dc805d14_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1708

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
53ff42761a15c333765c69fbea6fedbb

SHA1
ff23e11f5d439346b62226351ed65a5eeb9fc180

SHA256
ef3563d8fa0e7bad6953f952a0012d3585706e0972ccaf5c7b8de4a6d041942d

SHA512
b60a18045cb64b665b737b2212e9a1d4656c8c87b2c643437db561679f2eed71c2946b34288217fbe725f3d912f1e389466d889283049f28191b8d26eab41b35

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