wannacry | 8e9b4e205aee36139ecdb423ef0da3b6c87666b4dbfd0fe5185231f6bb4dcbd8

Analysis

max time kernel
150s
max time network
150s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
06-08-2024 15:58

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General

Target

2024-08-06_8ff406b0cfbdb9d481a566b48572ea16_wannacry.exe
Size

3.6MB
MD5

8ff406b0cfbdb9d481a566b48572ea16
SHA1

4b8cd68bbb05c6e74ef05bca105e30e94b44bb8f
SHA256

8e9b4e205aee36139ecdb423ef0da3b6c87666b4dbfd0fe5185231f6bb4dcbd8
SHA512

9f33459f0426cb6da506616c7626bbc6d8364211067cce3b8df2034b86ff4dbe173952b07c16016d48a0e207cca70d9d268dfd04b8b7fbf33039b822da63e6c8
SSDEEP

98304:Z8qPoBhz1aRxcSUDk36SAEdhvxWa9P593R:Z8qPe1Cxcxk3ZAEUadzR

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3184) 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
2104	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	2024-08-06_8ff406b0cfbdb9d481a566b48572ea16_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-08-06_8ff406b0cfbdb9d481a566b48572ea16_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	2024-08-06_8ff406b0cfbdb9d481a566b48572ea16_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-08-06_8ff406b0cfbdb9d481a566b48572ea16_wannacry.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-08-06_8ff406b0cfbdb9d481a566b48572ea16_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-08-06_8ff406b0cfbdb9d481a566b48572ea16_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-08-06_8ff406b0cfbdb9d481a566b48572ea16_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2096
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2104

C:\Users\Admin\AppData\Local\Temp\2024-08-06_8ff406b0cfbdb9d481a566b48572ea16_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-08-06_8ff406b0cfbdb9d481a566b48572ea16_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2140

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
212c43d642ea73238a1e1303c5a2c0a8

SHA1
e0050cc2e6eb5baac818c95cbbac2a52b344bb7a

SHA256
b0b94c0788f6c250dab14d9814a9fcc3a036e1b640cafdeadb7c81d452b28d39

SHA512
a3ba7be2cc1abd2aeade7807bf089dbdd6ac5f3da57b4c02b807e3a7639385d6ae77157e45d34ade9f81131c39a0c7b01221d828c09d4c96ea9900a001ec8085

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