wannacry | 1a288fbc320ec74748acc382dc2c58ea1bbea2eb993939d261d5117771438613

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
05/08/2024, 10:37

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General

Target
2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe
Size 5.0MB
Sample240805-mn4ghaxend
SHA256 1a288fbc320ec74748acc382dc2c58ea1bbea2eb993939d261d5117771438613
MD5 8c16ea13729a84976f110120c31b200e
SHA1 d371bb4be264f6522ffc3daea544514d3ea958fc
SHA512 574e15df52b1496dfe94ffc819c0fadb7bcc5ad7c873335ef240e1389cbe8848082ac37323181cc9e5b39dd5e7075465cdfa01458f5c8ebec39d3c7c481c811b
SSDEEP 49152:2nAQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAA:yDqPoBhz1aRxcSUDk36SA
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3327) 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
4148	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	2024-08-05_8c16ea13729a84976f110120c31b200e_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	2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:5080
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:4148

C:\Users\Admin\AppData\Local\Temp\2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-08-05_8c16ea13729a84976f110120c31b200e_wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:3128

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

tasksche.exe

Path C:\Windows\tasksche.exe
Size 3.4MB
SHA256 84823e7430ae9e9daeb611e986ca50000a7c66547f5ca060b320101a32a2902c
MD5 16a8fdd68114c10eae3c843faff5916b
SHA1 98555ee1fd1b0a1edcdc64ca3cc38bf8da382c76
SHA512 87e96104fd98f0c46e8765f52f48e9de0f29ca8abd96e270f000a9da4c17ef73fde33441e21ca8e8517bad103a99f3bd2bf05dca3e934bd6dfdba5d1c25c27ea
SSDEEP 49152:nQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SAA:QqPoBhz1aRxcSUDk36SA
MD5 SHA1 SHA512 SSDEEP

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