wannacry | 0ea5fef5acef413e7d9782da6bbf179e48529d165347c4da663b602a6b66af5c

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
08-01-2025 12:32

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General

Target

2025-01-08_77c267fffce7055cd589c324b694acda_wannacry.exe
Size

3.6MB
MD5

77c267fffce7055cd589c324b694acda
SHA1

6f158a3ca9de6d837c05db7e41e7ef01565936ff
SHA256

0ea5fef5acef413e7d9782da6bbf179e48529d165347c4da663b602a6b66af5c
SHA512

7806406679fc139292ab7d070906742b002ef87fed524787af58dd65c014890aa4da1b1a6c531d28f43181bbff63f88db6e861046fd5a41c1d7a8aee75d95ec6
SSDEEP

98304:y8qPoBhz1aRxcSUDku6SAEdhvxWa9P593R8yAVp2HI:y8qPe1CxcxkuZAEUadzR8yc4HI

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 (3348) 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
2804	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	2025-01-08_77c267fffce7055cd589c324b694acda_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2025-01-08_77c267fffce7055cd589c324b694acda_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	2025-01-08_77c267fffce7055cd589c324b694acda_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-01-08_77c267fffce7055cd589c324b694acda_wannacry.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2025-01-08_77c267fffce7055cd589c324b694acda_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2025-01-08_77c267fffce7055cd589c324b694acda_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2025-01-08_77c267fffce7055cd589c324b694acda_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:3040
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2804

C:\Users\Admin\AppData\Local\Temp\2025-01-08_77c267fffce7055cd589c324b694acda_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2025-01-08_77c267fffce7055cd589c324b694acda_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2704

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
03355b60614d0298572651faa3444829

SHA1
3c85d1054626bd3ebb26c302e8a54b9ba3ca2441

SHA256
435d8e3ff0e740c3694a29c9644af2df9054a8807fca05c85b3f6f81fc0ccaad

SHA512
00214500ffe6cd1f5e2e50853819756b25431417f73dbe079147ccd5b3fa6863879d151c857cfe4581424d8c70cb11b91d2872afb7001da58cb1833592f879a0

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