wannacry | 7604ba0030ba7e8a38548bc08c0fe4ced9d5356763e7b67663ea76081546a229

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
24-09-2024 09:30

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General

Target

2024-09-24_2f91a861102729d143efdf329a0810e2_wannacry.exe
Size

5.0MB
MD5

2f91a861102729d143efdf329a0810e2
SHA1

90e591f0c9277ee15df4dac093eb1228f2278e74
SHA256

7604ba0030ba7e8a38548bc08c0fe4ced9d5356763e7b67663ea76081546a229
SHA512

21102ba2fe50eaf6e95b15abc022599090ffc9482113d97e838e4a3588e154c003082cd86a4b190d7ac4f8da41f6c17370925c814a380a544ae8d8d50f629be8
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2:yDqPe1Cxcxk3ZAEUadzR8yc4

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3331) 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
1140	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	2024-09-24_2f91a861102729d143efdf329a0810e2_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	2024-09-24_2f91a861102729d143efdf329a0810e2_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-09-24_2f91a861102729d143efdf329a0810e2_wannacry.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-09-24_2f91a861102729d143efdf329a0810e2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-09-24_2f91a861102729d143efdf329a0810e2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-09-24_2f91a861102729d143efdf329a0810e2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-09-24_2f91a861102729d143efdf329a0810e2_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-09-24_2f91a861102729d143efdf329a0810e2_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-09-24_2f91a861102729d143efdf329a0810e2_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-09-24_2f91a861102729d143efdf329a0810e2_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:4724
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1140

C:\Users\Admin\AppData\Local\Temp\2024-09-24_2f91a861102729d143efdf329a0810e2_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-09-24_2f91a861102729d143efdf329a0810e2_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:4260

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
0655f3d070ef0b291e7a8dfec0ef9cc5

SHA1
fc48f53a3f5e7bb5263ea0f0bd7f10d8251be596

SHA256
7a9dc0490221bec2e72919a89da1d8c40791cd1961e976459bb9ed1e3b032c87

SHA512
70f43f378c6e587f0ffa20220c2482e19856b5fbbc94eb4c4cc3f04d5b8f9005bfc82c80c220c4a6c5252bc8f413e69148cdf760d55a57f6de58123ab026de0f

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