wannacry | 4e83425bfd37873bdcbf27a8871e285494f8123a2ca433469ad84c396dd30c31

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
29-08-2024 15:53

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General

Target

c922babfc7a4e11368fb9c38ce1e4cef_JaffaCakes118.exe
Size

3.6MB
MD5

c922babfc7a4e11368fb9c38ce1e4cef
SHA1

716f94092b41e0a7e235c0a449e47d3ace2f131e
SHA256

4e83425bfd37873bdcbf27a8871e285494f8123a2ca433469ad84c396dd30c31
SHA512

cf54278503738dea9a9a7edc165c86954fe52cadf44afbd0fbc9b1f17e37a9e16700fdd292a0fecad643decdf85967da4445098afaab74ed0885f18ae223cc5a
SSDEEP

49152:VnjQqMSPbcBVQej/1INRx+TSqTdX1HkQo6SA:Z8qPoBhz1aRxcSUDk36SA

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3117) 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
1032	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 System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	c922babfc7a4e11368fb9c38ce1e4cef_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	c922babfc7a4e11368fb9c38ce1e4cef_JaffaCakes118.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	c922babfc7a4e11368fb9c38ce1e4cef_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c922babfc7a4e11368fb9c38ce1e4cef_JaffaCakes118.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	c922babfc7a4e11368fb9c38ce1e4cef_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\c922babfc7a4e11368fb9c38ce1e4cef_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c922babfc7a4e11368fb9c38ce1e4cef_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2080
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:1032

C:\Users\Admin\AppData\Local\Temp\c922babfc7a4e11368fb9c38ce1e4cef_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\c922babfc7a4e11368fb9c38ce1e4cef_JaffaCakes118.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:1988

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
33c71b25069c85e838f74546d8f6ccef

SHA1
9286b72dfadafbab2e57ffaaec3166b82448bdbe

SHA256
9c9af20ef7a5b7a6de01455e75f76966418228daf8187894ceebb1361552b7e0

SHA512
752b5a76b4a2de65e95f2f95641cb182f6d5609da2725a542dfa9c23645dd3203d619cf56af1e08e79ec22048cf25cb10b6d5fa344f2643754b394ef10fca555

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