Malware Analysis Report

2025-01-18 04:48

Sample ID 241031-b7bp2swhlb
Target 2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader
SHA256 64e3b5bc412e502c4aea2ff4fba56e9b575a5de09b3c7130015ce37e329a5739
Tags
revengerat spam discovery trojan
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

64e3b5bc412e502c4aea2ff4fba56e9b575a5de09b3c7130015ce37e329a5739

Threat Level: Known bad

The file 2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader was found to be: Known bad.

Malicious Activity Summary

revengerat spam discovery trojan

RevengeRAT

Revengerat family

Suspicious use of SetThreadContext

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-31 01:46

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-31 01:46

Reported

2024-10-31 01:50

Platform

win7-20240903-en

Max time kernel

121s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe"

Signatures

RevengeRAT

trojan revengerat

Revengerat family

revengerat

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2528 wrote to memory of 2368 N/A C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe
PID 2528 wrote to memory of 2368 N/A C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe
PID 2528 wrote to memory of 2368 N/A C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe
PID 2528 wrote to memory of 2368 N/A C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe
PID 2528 wrote to memory of 2368 N/A C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe
PID 2528 wrote to memory of 2368 N/A C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe
PID 2528 wrote to memory of 2368 N/A C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe
PID 2528 wrote to memory of 2368 N/A C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe

"C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe"

C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe

"C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe"

Network

N/A

Files

memory/2528-0-0x0000000074B8E000-0x0000000074B8F000-memory.dmp

memory/2528-1-0x0000000000EC0000-0x0000000000F14000-memory.dmp

memory/2528-2-0x0000000000380000-0x0000000000388000-memory.dmp

memory/2368-3-0x0000000000400000-0x000000000040A000-memory.dmp

memory/2368-8-0x0000000000400000-0x000000000040A000-memory.dmp

memory/2368-6-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2368-5-0x0000000000400000-0x000000000040A000-memory.dmp

memory/2368-4-0x0000000000400000-0x000000000040A000-memory.dmp

memory/2368-12-0x0000000000400000-0x000000000040A000-memory.dmp

memory/2368-10-0x0000000000400000-0x000000000040A000-memory.dmp

memory/2368-14-0x000000007449E000-0x000000007449F000-memory.dmp

memory/2528-13-0x0000000074B80000-0x000000007526E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-31 01:46

Reported

2024-10-31 01:50

Platform

win10v2004-20241007-en

Max time kernel

134s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe"

Signatures

RevengeRAT

trojan revengerat

Revengerat family

revengerat

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4268 wrote to memory of 3508 N/A C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe
PID 4268 wrote to memory of 3508 N/A C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe
PID 4268 wrote to memory of 3508 N/A C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe
PID 4268 wrote to memory of 3508 N/A C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe
PID 4268 wrote to memory of 3508 N/A C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe
PID 4268 wrote to memory of 3508 N/A C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe
PID 4268 wrote to memory of 3508 N/A C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe

Processes

C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe

"C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe"

C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe

"C:\Users\Admin\AppData\Local\Temp\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.27.10:443 g.bing.com tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp

Files

memory/4268-0-0x0000000074B4E000-0x0000000074B4F000-memory.dmp

memory/4268-1-0x0000000000B90000-0x0000000000BE4000-memory.dmp

memory/4268-2-0x0000000005A20000-0x0000000005FC4000-memory.dmp

memory/4268-3-0x0000000005420000-0x0000000005428000-memory.dmp

memory/3508-4-0x0000000000400000-0x000000000040A000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\2024-10-31_8987cdb78358227903ac805abf0b7e29_hiddentear_hijackloader.exe.log

MD5 03febbff58da1d3318c31657d89c8542
SHA1 c9e017bd9d0a4fe533795b227c855935d86c2092
SHA256 5164770a37b199a79ccd23b399bb3309228973d9f74c589bc2623dc613b37ac4
SHA512 3750c372bbca1892e9c1b34681d592c693e725a8b149c3d6938079cd467628cec42c4293b0d886b57a786abf45f5e7229247b3445001774e3e793ff5a3accfa3

memory/4268-7-0x0000000074B40000-0x00000000752F0000-memory.dmp

memory/3508-10-0x00000000057D0000-0x0000000005836000-memory.dmp

memory/3508-11-0x0000000074B40000-0x00000000752F0000-memory.dmp

memory/3508-8-0x0000000005730000-0x00000000057CC000-memory.dmp

memory/4268-9-0x0000000074B40000-0x00000000752F0000-memory.dmp

memory/3508-12-0x0000000074B40000-0x00000000752F0000-memory.dmp