wannacry | 6e4e75cbf80b900584507d1d385c675147ef7333409ac25af596839c048cbc5f

Analysis

max time kernel
150s
max time network
151s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
16-06-2024 13:27

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General

Target

b3be914705f685c8b6c721532089e5a5_JaffaCakes118.exe
Size

3.6MB
MD5

b3be914705f685c8b6c721532089e5a5
SHA1

1543667cae2c1b8619ff5a48a1b5deb9860e7e6c
SHA256

6e4e75cbf80b900584507d1d385c675147ef7333409ac25af596839c048cbc5f
SHA512

49990667cff8ef17e87566969454287917d159605d85ec8588f086f2a69f8b4d2a706df8ba69530d745bdaf4d9d17ca55acec7c4db99ead248d27106c67eb32d
SSDEEP

98304:Z8qPoBhz1aRxcSUDk36SAEdhvxWa9P593R8yAVp2/:Z8qPe1Cxcxk3ZAEUadzR8yc4/

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3205) 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

Processes:

tasksche.exe

pid process

2756 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

pid	process
2756	tasksche.exe

Drops file in System32 directory 1 IoCs

Processes:

b3be914705f685c8b6c721532089e5a5_JaffaCakes118.exe

description	ioc	process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	b3be914705f685c8b6c721532089e5a5_JaffaCakes118.exe

Drops file in Windows directory 1 IoCs

Processes:

b3be914705f685c8b6c721532089e5a5_JaffaCakes118.exe

description ioc process

File created C:\WINDOWS\tasksche.exe b3be914705f685c8b6c721532089e5a5_JaffaCakes118.exe

description	ioc	process
File created	C:\WINDOWS\tasksche.exe	b3be914705f685c8b6c721532089e5a5_JaffaCakes118.exe

Modifies data under HKEY_USERS 1 IoCs

Processes:

b3be914705f685c8b6c721532089e5a5_JaffaCakes118.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	b3be914705f685c8b6c721532089e5a5_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\b3be914705f685c8b6c721532089e5a5_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b3be914705f685c8b6c721532089e5a5_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
PID:1132

C:\WINDOWS\tasksche.exe
C:\WINDOWS\tasksche.exe /i
2⤵
- Executes dropped EXE
PID:2756

C:\Users\Admin\AppData\Local\Temp\b3be914705f685c8b6c721532089e5a5_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\b3be914705f685c8b6c721532089e5a5_JaffaCakes118.exe -m security
1⤵
- Drops file in System32 directory
- Modifies data under HKEY_USERS
PID:552

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

T1046

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
2935c7dc8f34e60ed96ea5418ad1a827

SHA1
80d36b6160d7da230942505dfb1cfe1138cbcf89

SHA256
93398a32a538dae5b17322cba7b4131c73335be95377ea3aed906d074922d8d7

SHA512
0fb88116fd1c3977cbdd0575e9ee69c72f3afa368d75a65b489a802893390d7ef2e504f6323a592d15552a3f1a685c89904fe3c104056ee271a76393d697c049

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