wannacry | 07939de7f432ed737b994bc9995b8587ca9230f12f1db5ad46def9a9daf8b6d4

Analysis

max time kernel
150s
max time network
154s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-09-2024 10:05

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General

Target

2024-09-25_f0aec91ca89f0c6edc4a5b09bda9123a_wannacry.exe
Size

5.0MB
MD5

f0aec91ca89f0c6edc4a5b09bda9123a
SHA1

3ed40ac152aa7a8caed87fa6d7ba00561e968db1
SHA256

07939de7f432ed737b994bc9995b8587ca9230f12f1db5ad46def9a9daf8b6d4
SHA512

25e2eca635e3fad4089b585e960a29d4e9e832ad2ca6327bb3800a807f98c5e919692aedb259d77b43db06e24ea18a16540fe3a627b79fcddf4b8ec28a488b30
SSDEEP

12288:GwbLgPluxQhMbaIMu7L5NVErCA4z2g6rTcbckPU82900Ve7zw+K+DHeQYSUjEXFy:VbLgdeQhfdmMSirYbcMNgef0QeQjGI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3192) 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
1632	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	2024-09-25_f0aec91ca89f0c6edc4a5b09bda9123a_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-09-25_f0aec91ca89f0c6edc4a5b09bda9123a_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	2024-09-25_f0aec91ca89f0c6edc4a5b09bda9123a_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-25_f0aec91ca89f0c6edc4a5b09bda9123a_wannacry.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-09-25_f0aec91ca89f0c6edc4a5b09bda9123a_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-25_f0aec91ca89f0c6edc4a5b09bda9123a_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-25_f0aec91ca89f0c6edc4a5b09bda9123a_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1092
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1632

C:\Users\Admin\AppData\Local\Temp\2024-09-25_f0aec91ca89f0c6edc4a5b09bda9123a_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-25_f0aec91ca89f0c6edc4a5b09bda9123a_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3004

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
86e3f55745bd48a5f14e36079fa35c08

SHA1
83ca4360e19384de800dcfb8954372b63e16be0c

SHA256
fa590e6e5fea75b8d5b5269b9bd16463645e46eb3d7a0504e0db8129c2083790

SHA512
175d56f34fbf300c02b4ec5a61679a371502f11bfbdbef488b4d3d220c68dfa3c5b4efdc2924859525d16c8d36cbfba0d8694a351bc093ade38abb2cee9c9f6c

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