wannacry | b764629e1f43851daf984c9372422b65ddceae28f83d6211873f4c8f8672c41c

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
18-03-2024 13:46

Target

b764629e1f43851daf984c9372422b65ddceae28f83d6211873f4c8f8672c41c.exe
Size

3.6MB
MD5

ef29f0f2a7b98ea19767b8ae66d1ffb8
SHA1

093b3916ee1bea0442278d0aa87be5703207e627
SHA256

b764629e1f43851daf984c9372422b65ddceae28f83d6211873f4c8f8672c41c
SHA512

9ab431d19633ed54dc1cc8bc4e511cabcfcba56ee0ff30197f5bd7aca07b33f2b605ab17f07fba066f5c910903f27bb04f4eb04cbed539af783564bbeba2c80e
SSDEEP

98304:yDqPoBhhRxcSUDk36SAEdhvxWa9P59Uc/Jf:yDqPSxcxk3ZAEUadv1

Score

10^/10

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3347) 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

Processes:

tasksche.exe

pid process

3784 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 Windows directory 1 IoCs

Processes:

b764629e1f43851daf984c9372422b65ddceae28f83d6211873f4c8f8672c41c.exe

description ioc process

File created C:\WINDOWS\tasksche.exe b764629e1f43851daf984c9372422b65ddceae28f83d6211873f4c8f8672c41c.exe

pid	process
3784	tasksche.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	b764629e1f43851daf984c9372422b65ddceae28f83d6211873f4c8f8672c41c.exe

Modifies data under HKEY_USERS 5 IoCs

Processes:

b764629e1f43851daf984c9372422b65ddceae28f83d6211873f4c8f8672c41c.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	b764629e1f43851daf984c9372422b65ddceae28f83d6211873f4c8f8672c41c.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	b764629e1f43851daf984c9372422b65ddceae28f83d6211873f4c8f8672c41c.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	b764629e1f43851daf984c9372422b65ddceae28f83d6211873f4c8f8672c41c.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	b764629e1f43851daf984c9372422b65ddceae28f83d6211873f4c8f8672c41c.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	b764629e1f43851daf984c9372422b65ddceae28f83d6211873f4c8f8672c41c.exe

C:\Users\Admin\AppData\Local\Temp\b764629e1f43851daf984c9372422b65ddceae28f83d6211873f4c8f8672c41c.exe
"C:\Users\Admin\AppData\Local\Temp\b764629e1f43851daf984c9372422b65ddceae28f83d6211873f4c8f8672c41c.exe"
1⤵
- Drops file in Windows directory
PID:744

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:3784

C:\Users\Admin\AppData\Local\Temp\b764629e1f43851daf984c9372422b65ddceae28f83d6211873f4c8f8672c41c.exe
C:\Users\Admin\AppData\Local\Temp\b764629e1f43851daf984c9372422b65ddceae28f83d6211873f4c8f8672c41c.exe -m security
1⤵
- Modifies data under HKEY_USERS
PID:2016

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
d5ca82b0fdfcd6b7e63bc83a49e60cbc

SHA1
5b6a6548ac48b0903a232c8c140e9d16770b905d

SHA256
3d0b4f048e8058cf077e76ea22ff8441431747c2a2a42b8ecbbf93f2655012ca

SHA512
cabf490ab13a7384d477441f593597e71d9fc8ce07452062d4ab6d239a910a46751aaef17f642a2a7dfb516904b34739d7b96c0c70fcdbf194aff63325058651

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