wannacry | 860f82416c505a7938a5e51e784bfe4e021b5f0f3487883d5e941c22d2844f7e

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
23-09-2024 20:35

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General

Target

nozomi.exe
Size

3.6MB
MD5

7dc85e203f978618abeca0f1533fcfd9
SHA1

fb254f5df3d0ffe42b910afa33c3cc36f2fd00a4
SHA256

860f82416c505a7938a5e51e784bfe4e021b5f0f3487883d5e941c22d2844f7e
SHA512

61dc510ce975ca2f705fe7358a9a9bded55d31b5868c37fe2b024db0902fb040ed4d2bb3ee974db8de543e72b40927784ce852367ac7d4ff41c129d4879a8112
SSDEEP

49152:XnAQqMSPbcBV5RdhnvxJM0H9PAMEcaEau3R8yAH1plAHI:XDqPoBZdhvxWa9P593R8yAVp2HI

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3290) 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
640	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

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	nozomi.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	nozomi.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	nozomi.exe

Modifies data under HKEY_USERS 5 IoCs

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

C:\Users\Admin\AppData\Local\Temp\nozomi.exe
"C:\Users\Admin\AppData\Local\Temp\nozomi.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1572
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:640

C:\Users\Admin\AppData\Local\Temp\nozomi.exe
C:\Users\Admin\AppData\Local\Temp\nozomi.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2228

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
808e752e28f284c61170ac3fc6010217

SHA1
44afa45d66fa3809b1b82a5125da087f5b3594b2

SHA256
58b08e0465013b3d08ac777efa90ecc8802f3f581265eab5d7e6e287cbddae3c

SHA512
20db7da1561bf221d7e7d53e75abe982956488eb40e3c876bb707027f2c0799fc5983bc3e8db28957da068e429e620686519135d411982554c3e28f3bfbed93a

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