wannacry | 8c0c3bb9c1eb56c1ba024c2148e470399c93e03130a5ef6c04bae118b3daa239

Analysis

max time kernel
152s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
10-10-2022 04:28

Target

8c0c3bb9c1eb56c1ba024c2148e470399c93e03130a5ef6c04bae118b3daa239.exe
Size

3.6MB
MD5

4202af759ddd588df0a1d6b6ad1ee1bc
SHA1

721b30790b26682fd3462527317fe817831743f2
SHA256

8c0c3bb9c1eb56c1ba024c2148e470399c93e03130a5ef6c04bae118b3daa239
SHA512

a9a001d8ad716f3747df6fd8a19b37e79af1dfeb716ab9530f021c3bffc6564784fa209d85376794eb232f9ff5a2bf9e5b4652261eebffd517cd3a30bae4b1b1
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2f:yDqPe1Cxcxk3ZAEUadzR8yc4f

Score

10^/10

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3271) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Scanning
T1046
Executes dropped EXE 1 IoCs

Processes:

tasksche.exe

pid process

4580 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 Scanning
T1046
Drops file in Windows directory 1 IoCs

Processes:

8c0c3bb9c1eb56c1ba024c2148e470399c93e03130a5ef6c04bae118b3daa239.exe

description ioc process

File created C:\WINDOWS\tasksche.exe 8c0c3bb9c1eb56c1ba024c2148e470399c93e03130a5ef6c04bae118b3daa239.exe

pid	process
4580	tasksche.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	8c0c3bb9c1eb56c1ba024c2148e470399c93e03130a5ef6c04bae118b3daa239.exe

Modifies data under HKEY_USERS 5 IoCs

Processes:

8c0c3bb9c1eb56c1ba024c2148e470399c93e03130a5ef6c04bae118b3daa239.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	8c0c3bb9c1eb56c1ba024c2148e470399c93e03130a5ef6c04bae118b3daa239.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	8c0c3bb9c1eb56c1ba024c2148e470399c93e03130a5ef6c04bae118b3daa239.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	8c0c3bb9c1eb56c1ba024c2148e470399c93e03130a5ef6c04bae118b3daa239.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	8c0c3bb9c1eb56c1ba024c2148e470399c93e03130a5ef6c04bae118b3daa239.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	8c0c3bb9c1eb56c1ba024c2148e470399c93e03130a5ef6c04bae118b3daa239.exe

C:\Users\Admin\AppData\Local\Temp\8c0c3bb9c1eb56c1ba024c2148e470399c93e03130a5ef6c04bae118b3daa239.exe
"C:\Users\Admin\AppData\Local\Temp\8c0c3bb9c1eb56c1ba024c2148e470399c93e03130a5ef6c04bae118b3daa239.exe"
1⤵
- Drops file in Windows directory
PID:4916

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:4580

C:\Users\Admin\AppData\Local\Temp\8c0c3bb9c1eb56c1ba024c2148e470399c93e03130a5ef6c04bae118b3daa239.exe
C:\Users\Admin\AppData\Local\Temp\8c0c3bb9c1eb56c1ba024c2148e470399c93e03130a5ef6c04bae118b3daa239.exe -m security
1⤵
- Modifies data under HKEY_USERS
PID:2380

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Scanning

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

C:\Windows\tasksche.exe
Filesize
3.4MB

MD5
4092e892c5561b86a96dbcdad7f5b7e9

SHA1
31c342e36ee94801e7437fc23accbf08a2812297

SHA256
a055ef139ccc99822e7b331218319cb205801d21b20484c1e7d200b6df40c2ef

SHA512
e8d5ffbdd445e1aab3df3cfb75c96cc7929e3780e2406a403d871c89a75ffe85325e3ce853d23e881638234c75e25a3d8c5761caa8b41aa869121f7af914af5f

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