wannacry | 7dc21b56f834c7174307d8f2346d2e6116163c7e32816bee6b574542946232fe

Analysis

max time kernel
150s
max time network
151s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
27-09-2024 17:32

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General

Target

2024-09-27_d219193d009117f42e42bacc8b71bc66_wannacry.exe
Size

3.6MB
MD5

d219193d009117f42e42bacc8b71bc66
SHA1

1263c9933e608fd8f15a90a6d2a7ab55d9e494b0
SHA256

7dc21b56f834c7174307d8f2346d2e6116163c7e32816bee6b574542946232fe
SHA512

f906734dd9c93e1a21f60f2b2c295946bb2486916e38be0e555e21a1380b7caf80761c71916cdfc173f6f19261cef8c52735bede3ff79c0e50956b79d6adb359
SSDEEP

98304:Z8qPoBhz1aRxcSUmEdhvxWa9P593R8yAVp2HI:Z8qPe1CxcgEUadzR8yc4HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3288) 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
2384	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	2024-09-27_d219193d009117f42e42bacc8b71bc66_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-27_d219193d009117f42e42bacc8b71bc66_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	2024-09-27_d219193d009117f42e42bacc8b71bc66_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-27_d219193d009117f42e42bacc8b71bc66_wannacry.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-27_d219193d009117f42e42bacc8b71bc66_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-27_d219193d009117f42e42bacc8b71bc66_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-27_d219193d009117f42e42bacc8b71bc66_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1252
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2384

C:\Users\Admin\AppData\Local\Temp\2024-09-27_d219193d009117f42e42bacc8b71bc66_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-27_d219193d009117f42e42bacc8b71bc66_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1524

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
558b26a4704c615b6465f777a88fefce

SHA1
091b4145fdcc6c7a0d12ecb1051d1280ce556ca7

SHA256
a641f58248e11687d4720b0511a88217cbffc232ab0160ad0a74aa6acb95bb7a

SHA512
5d595325b1873289f79291f6e0a0d20e10686b31b1c7a26f8a669a34bdf29c99bf401bfc4cb7ce4df66c0dcd3d52cf7d650b5db0d2a81bba07444c240d49d11b

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