Malware Analysis Report

2024-10-19 06:56

Sample ID 240627-vjhy1ataln
Target Stub.exe
SHA256 ad2c029407cebf926900436721a48f42afb91768b15c7d2e3e584cb766661bd2
Tags
rat newjop asyncrat spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

ad2c029407cebf926900436721a48f42afb91768b15c7d2e3e584cb766661bd2

Threat Level: Known bad

The file Stub.exe was found to be: Known bad.

Malicious Activity Summary

rat newjop asyncrat spyware stealer

AsyncRat

Async RAT payload

Asyncrat family

Reads user/profile data of web browsers

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-27 17:01

Signatures

Async RAT payload

rat
Description Indicator Process Target
N/A N/A N/A N/A

Asyncrat family

asyncrat

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-27 17:01

Reported

2024-06-27 17:03

Platform

win7-20240508-en

Max time kernel

122s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Stub.exe"

Signatures

AsyncRat

rat asyncrat

Reads user/profile data of web browsers

spyware stealer

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Stub.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Stub.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Stub.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\Stub.exe

"C:\Users\Admin\AppData\Local\Temp\Stub.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 backwork07.ddns.net udp
US 172.93.111.165:6666 backwork07.ddns.net tcp
US 172.93.111.165:6666 backwork07.ddns.net tcp

Files

memory/1904-0-0x0000000073FEE000-0x0000000073FEF000-memory.dmp

memory/1904-1-0x0000000000AF0000-0x0000000000B06000-memory.dmp

memory/1904-2-0x0000000073FE0000-0x00000000746CE000-memory.dmp

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

MD5 49aebf8cbd62d92ac215b2923fb1b9f5
SHA1 1723be06719828dda65ad804298d0431f6aff976
SHA256 b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512 bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

C:\Users\Admin\AppData\Local\Temp\Tar3885.tmp

MD5 4ea6026cf93ec6338144661bf1202cd1
SHA1 a1dec9044f750ad887935a01430bf49322fbdcb7
SHA256 8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
SHA512 6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

memory/1904-40-0x0000000073FEE000-0x0000000073FEF000-memory.dmp

memory/1904-41-0x0000000073FE0000-0x00000000746CE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-27 17:01

Reported

2024-06-27 17:03

Platform

win10v2004-20240508-en

Max time kernel

143s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Stub.exe"

Signatures

AsyncRat

rat asyncrat

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Stub.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Stub.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Stub.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\Stub.exe

"C:\Users\Admin\AppData\Local\Temp\Stub.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 backwork07.ddns.net udp
US 8.8.8.8:53 backwork07.ddns.net udp
US 8.8.8.8:53 backwork07.ddns.net udp
US 8.8.8.8:53 backwork07.ddns.net udp
US 8.8.8.8:53 backwork07.ddns.net udp
US 8.8.8.8:53 backwork07.ddns.net udp
US 8.8.8.8:53 backwork07.ddns.net udp
US 8.8.8.8:53 backwork07.ddns.net udp
US 8.8.8.8:53 backwork07.ddns.net udp

Files

memory/1944-0-0x0000000074BAE000-0x0000000074BAF000-memory.dmp

memory/1944-1-0x0000000000180000-0x0000000000196000-memory.dmp

memory/1944-2-0x0000000074BA0000-0x0000000075350000-memory.dmp

memory/1944-3-0x0000000005320000-0x00000000058C4000-memory.dmp

memory/1944-4-0x0000000004F50000-0x0000000004FE2000-memory.dmp

memory/1944-5-0x0000000004F30000-0x0000000004F3A000-memory.dmp

memory/1944-6-0x0000000074BA0000-0x0000000075350000-memory.dmp