Malware Analysis Report

2024-11-16 13:02

Sample ID 240905-nxjzws1ard
Target Client-built.zip
SHA256 a0bcb2876aec1eb2173e2f49c3cc1548ce04f38a593ed04d24ff0e3045c0faf6
Tags
discordrat persistence rat rootkit 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 Overview

score
10/10

SHA256

a0bcb2876aec1eb2173e2f49c3cc1548ce04f38a593ed04d24ff0e3045c0faf6

Threat Level: Known bad

The file Client-built.zip was found to be: Known bad.

Malicious Activity Summary

discordrat persistence rat rootkit stealer

Discordrat family

Discord RAT

Unsigned PE

Suspicious behavior: AddClipboardFormatListener

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Checks processor information in registry

Enumerates system info in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-05 11:46

Signatures

Discordrat family

discordrat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-05 11:46

Reported

2024-09-05 11:49

Platform

win11-20240802-en

Max time kernel

147s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Client-built.exe"

Signatures

Discord RAT

stealer rootkit rat persistence discordrat

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A

Enumerates system info in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A

Suspicious behavior: AddClipboardFormatListener

Description Indicator Process Target
N/A N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A

Suspicious use of AdjustPrivilegeToken

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

Processes

C:\Users\Admin\AppData\Local\Temp\Client-built.exe

"C:\Users\Admin\AppData\Local\Temp\Client-built.exe"

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\Desktop\StartConnect.xlsx"

Network

Country Destination Domain Proto
US 8.8.8.8:53 gateway.discord.gg udp
US 162.159.134.234:443 gateway.discord.gg tcp
US 8.8.8.8:53 234.134.159.162.in-addr.arpa udp
IE 52.109.76.243:443 roaming.officeapps.live.com tcp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp

Files

memory/2552-0-0x00007FFA34AB3000-0x00007FFA34AB5000-memory.dmp

memory/2552-1-0x0000029191840000-0x0000029191858000-memory.dmp

memory/2552-2-0x00000291ABFD0000-0x00000291AC192000-memory.dmp

memory/2552-3-0x00007FFA34AB0000-0x00007FFA35572000-memory.dmp

memory/2552-4-0x00000291AD250000-0x00000291AD778000-memory.dmp

memory/2552-5-0x00007FFA34AB3000-0x00007FFA34AB5000-memory.dmp

memory/2552-6-0x00007FFA34AB0000-0x00007FFA35572000-memory.dmp

memory/3784-7-0x00007FFA15990000-0x00007FFA159A0000-memory.dmp

memory/3784-8-0x00007FFA15990000-0x00007FFA159A0000-memory.dmp

memory/3784-10-0x00007FFA559A3000-0x00007FFA559A4000-memory.dmp

memory/3784-11-0x00007FFA15990000-0x00007FFA159A0000-memory.dmp

memory/3784-9-0x00007FFA15990000-0x00007FFA159A0000-memory.dmp

memory/3784-13-0x00007FFA55900000-0x00007FFA55B09000-memory.dmp

memory/3784-14-0x00007FFA15990000-0x00007FFA159A0000-memory.dmp

memory/3784-17-0x00007FFA55900000-0x00007FFA55B09000-memory.dmp

memory/3784-16-0x00007FFA55900000-0x00007FFA55B09000-memory.dmp

memory/3784-15-0x00007FFA55900000-0x00007FFA55B09000-memory.dmp

memory/3784-18-0x00007FFA55900000-0x00007FFA55B09000-memory.dmp

memory/3784-21-0x00007FFA55900000-0x00007FFA55B09000-memory.dmp

memory/3784-20-0x00007FFA55900000-0x00007FFA55B09000-memory.dmp

memory/3784-19-0x00007FFA55900000-0x00007FFA55B09000-memory.dmp

memory/3784-12-0x00007FFA55900000-0x00007FFA55B09000-memory.dmp

memory/3784-22-0x00007FFA130C0000-0x00007FFA130D0000-memory.dmp

memory/3784-23-0x00007FFA55900000-0x00007FFA55B09000-memory.dmp

memory/3784-24-0x00007FFA55900000-0x00007FFA55B09000-memory.dmp

memory/3784-28-0x00007FFA55900000-0x00007FFA55B09000-memory.dmp

memory/3784-30-0x00007FFA55900000-0x00007FFA55B09000-memory.dmp

memory/3784-29-0x00007FFA55900000-0x00007FFA55B09000-memory.dmp

memory/3784-27-0x00007FFA55900000-0x00007FFA55B09000-memory.dmp

memory/3784-26-0x00007FFA130C0000-0x00007FFA130D0000-memory.dmp

memory/3784-25-0x00007FFA55900000-0x00007FFA55B09000-memory.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Office\Recent\index.dat

MD5 0634d72a9ac8bca360bac96972bcae07
SHA1 76cc2d5a20491fb9d0446421600659247838c258
SHA256 f655a088793468499edb1d2f7c416b3d78cf98ff96e539075498ddf004ddef5d
SHA512 203c3acd6029899059b97858c297feb25e763102c2a8d5cfa8fe3582a83b09e6424c6c7906bda6f99dd463e5a3709300edfa1066c79c2de3a27b9b2ccbc8ef84

memory/3784-45-0x00007FFA55900000-0x00007FFA55B09000-memory.dmp

memory/3784-46-0x00007FFA55900000-0x00007FFA55B09000-memory.dmp

memory/3784-47-0x00007FFA55900000-0x00007FFA55B09000-memory.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms

MD5 ed5d2c826ababe5fb0f946470b3b41a1
SHA1 e975d54f6f28a2f206cb36d6d45b271a3bbfef0c
SHA256 8d6150c02c75eb732a28ee801fb7cb9142f2e28833de35eb0f085b18d09d938d
SHA512 2e79d366fff9b5ce92e1effea2319801bed35359a878d589e3c7e57989b3503fbd0a12b76789659395150b795c2983423391826e8fd01e97ca8496bfa78937aa

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms

MD5 14f544fef6e9f94d91183638cd8b5947
SHA1 cbe608398f4ab74f119e167edc6a3929858dd4f9
SHA256 7297cd3850d8d8bd4e08d370c491c16dd07c96ee0bc775ff4a3bdda4e6173206
SHA512 0e543a1d9ce724d17f887e1c60327b7f3f283650bbea9e7bcf32e1ab4c34a5f5b9def1310915bc8ba6fb7991822e3434c6359b3190e42e00bcac9fc845b1f2c7