wannacry | b2c07d5c3eaf52e67dae610391bebfb83da6c5a82d0fdcc641505447a90449ec

Analysis

max time kernel
150s
max time network
156s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03-10-2024 07:24

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General

Target

2024-10-03_0040332647221956b1ddcbf1d7a365c5_wannacry.exe
Size

3.6MB
MD5

0040332647221956b1ddcbf1d7a365c5
SHA1

19df16c11d884ba24ec8e3459ad615f76741e347
SHA256

b2c07d5c3eaf52e67dae610391bebfb83da6c5a82d0fdcc641505447a90449ec
SHA512

071a28ef0dd729e9d559d5aeb498e961c4b055097badd49bc56abf19d7c5bd447fa5341116f7daabd9d00e06e86fd7a4147ae755c9eb8dbb467dcbb5be06bfaf
SSDEEP

98304:X8qPoBhz1aRxcSUDk36SAEdhvxWa9P593R1VG:X8qPe1Cxcxk3ZAEUadzRy

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3311) 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
2700	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	2024-10-03_0040332647221956b1ddcbf1d7a365c5_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-10-03_0040332647221956b1ddcbf1d7a365c5_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	2024-10-03_0040332647221956b1ddcbf1d7a365c5_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-03_0040332647221956b1ddcbf1d7a365c5_wannacry.exe

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-10-03_0040332647221956b1ddcbf1d7a365c5_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-10-03_0040332647221956b1ddcbf1d7a365c5_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-03_0040332647221956b1ddcbf1d7a365c5_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1992
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2700

C:\Users\Admin\AppData\Local\Temp\2024-10-03_0040332647221956b1ddcbf1d7a365c5_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-10-03_0040332647221956b1ddcbf1d7a365c5_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2760

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
a1b7b3e51ce85ee1e233245b0f93731b

SHA1
a58d3439c52a868123e6677b2fd48e1b997b692b

SHA256
950dc7d27189845bcb51346b6d11f8b8a4cc5d7d98fab667de2a1843d93a3310

SHA512
bca6d931cd57bd3e602507bb536acdc001d64d72b792f547a621e9820e9ec90bac36b7945ca6490199747b463ac211f0410746c895f8784d2cdebca542136dd6

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