Malware Analysis Report

2025-01-03 05:10

Sample ID 230703-b2t97sec83
Target a47434b53be19aa80e4529da0ac4e528.bin
SHA256 e6ecd1d1d0c509224766768df9ef234bbcedd51d66288fd36ba4d55093f8d030
Tags
bitrat persistence trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

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

e6ecd1d1d0c509224766768df9ef234bbcedd51d66288fd36ba4d55093f8d030

Threat Level: Known bad

The file a47434b53be19aa80e4529da0ac4e528.bin was found to be: Known bad.

Malicious Activity Summary

bitrat persistence trojan

BitRAT

Drops startup file

Adds Run key to start application

Suspicious use of NtSetInformationThreadHideFromDebugger

Suspicious use of SetThreadContext

Unsigned PE

Suspicious behavior: RenamesItself

Suspicious use of SetWindowsHookEx

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-07-03 01:38

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-07-03 01:38

Reported

2023-07-03 01:41

Platform

win7-20230621-en

Max time kernel

27s

Max time network

31s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe"

Signatures

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe

"C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe"

Network

N/A

Files

memory/1732-54-0x0000000000B60000-0x0000000001042000-memory.dmp

memory/1732-55-0x0000000004F00000-0x0000000005180000-memory.dmp

memory/1732-56-0x0000000004920000-0x0000000004960000-memory.dmp

memory/1732-58-0x0000000004F00000-0x000000000517A000-memory.dmp

memory/1732-57-0x0000000004F00000-0x000000000517A000-memory.dmp

memory/1732-60-0x0000000004F00000-0x000000000517A000-memory.dmp

memory/1732-62-0x0000000004F00000-0x000000000517A000-memory.dmp

memory/1732-64-0x0000000004F00000-0x000000000517A000-memory.dmp

memory/1732-66-0x0000000004F00000-0x000000000517A000-memory.dmp

memory/1732-68-0x0000000004F00000-0x000000000517A000-memory.dmp

memory/1732-70-0x0000000004F00000-0x000000000517A000-memory.dmp

memory/1732-72-0x0000000004F00000-0x000000000517A000-memory.dmp

memory/1732-74-0x0000000004F00000-0x000000000517A000-memory.dmp

memory/1732-76-0x0000000004F00000-0x000000000517A000-memory.dmp

memory/1732-78-0x0000000004F00000-0x000000000517A000-memory.dmp

memory/1732-80-0x0000000004F00000-0x000000000517A000-memory.dmp

memory/1732-82-0x0000000004F00000-0x000000000517A000-memory.dmp

memory/1732-84-0x0000000004F00000-0x000000000517A000-memory.dmp

memory/1732-86-0x0000000004F00000-0x000000000517A000-memory.dmp

memory/1732-88-0x0000000004F00000-0x000000000517A000-memory.dmp

memory/1732-90-0x0000000004F00000-0x000000000517A000-memory.dmp

memory/1732-92-0x0000000004F00000-0x000000000517A000-memory.dmp

memory/1732-94-0x0000000004F00000-0x000000000517A000-memory.dmp

memory/1732-96-0x0000000004F00000-0x000000000517A000-memory.dmp

memory/1732-98-0x0000000004F00000-0x000000000517A000-memory.dmp

memory/1732-100-0x0000000004F00000-0x000000000517A000-memory.dmp

memory/1732-102-0x0000000004F00000-0x000000000517A000-memory.dmp

memory/1732-104-0x0000000004F00000-0x000000000517A000-memory.dmp

memory/1732-106-0x0000000004F00000-0x000000000517A000-memory.dmp

memory/1732-108-0x0000000004F00000-0x000000000517A000-memory.dmp

memory/1732-110-0x0000000004F00000-0x000000000517A000-memory.dmp

memory/1732-112-0x0000000004F00000-0x000000000517A000-memory.dmp

memory/1732-114-0x0000000004F00000-0x000000000517A000-memory.dmp

memory/1732-116-0x0000000004F00000-0x000000000517A000-memory.dmp

memory/1732-118-0x0000000004F00000-0x000000000517A000-memory.dmp

memory/1732-120-0x0000000004F00000-0x000000000517A000-memory.dmp

memory/1732-649-0x0000000004920000-0x0000000004960000-memory.dmp

memory/1732-1102-0x0000000005750000-0x0000000005946000-memory.dmp

memory/1732-1103-0x00000000005F0000-0x000000000063C000-memory.dmp

memory/1732-1104-0x0000000000260000-0x0000000000261000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-07-03 01:38

Reported

2023-07-03 01:41

Platform

win10v2004-20230621-en

Max time kernel

151s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe"

Signatures

BitRAT

trojan bitrat

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Babryua.vbs C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-4129409437-3162877118-52503038-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Install name = "C:\\Users\\Admin\\AppData\\Local\\Install path\\Install name" C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe N/A
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 812 wrote to memory of 5032 N/A C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe
PID 812 wrote to memory of 5032 N/A C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe
PID 812 wrote to memory of 5032 N/A C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe
PID 812 wrote to memory of 5032 N/A C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe
PID 812 wrote to memory of 5032 N/A C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe
PID 812 wrote to memory of 5032 N/A C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe
PID 812 wrote to memory of 5032 N/A C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe
PID 812 wrote to memory of 5032 N/A C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe
PID 812 wrote to memory of 5032 N/A C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe
PID 812 wrote to memory of 5032 N/A C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe
PID 812 wrote to memory of 5032 N/A C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe

Processes

C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe

"C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe"

C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe

C:\Users\Admin\AppData\Local\Temp\5726631bd5354455869b80013d408d97b6d479d61697aecfa253fb42caed3b1b.exe purecrypter.exe

Network

Country Destination Domain Proto
US 192.229.221.95:80 tcp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 8.3.197.209.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 20.42.73.25:443 tcp
DE 23.218.209.198:443 tcp
US 8.8.8.8:53 233.141.123.20.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 82.135.123.92.in-addr.arpa udp
US 104.223.91.190:1234 tcp
US 8.8.8.8:53 190.91.223.104.in-addr.arpa udp

Files

memory/812-133-0x0000000000570000-0x0000000000A52000-memory.dmp

memory/812-134-0x00000000054E0000-0x000000000575A000-memory.dmp

memory/812-135-0x00000000054E0000-0x000000000575A000-memory.dmp

memory/812-137-0x00000000054E0000-0x000000000575A000-memory.dmp

memory/812-139-0x00000000054E0000-0x000000000575A000-memory.dmp

memory/812-143-0x0000000005460000-0x0000000005470000-memory.dmp

memory/812-141-0x00000000054E0000-0x000000000575A000-memory.dmp

memory/812-144-0x00000000054E0000-0x000000000575A000-memory.dmp

memory/812-146-0x00000000054E0000-0x000000000575A000-memory.dmp

memory/812-148-0x00000000054E0000-0x000000000575A000-memory.dmp

memory/812-150-0x00000000054E0000-0x000000000575A000-memory.dmp

memory/812-152-0x00000000054E0000-0x000000000575A000-memory.dmp

memory/812-154-0x00000000054E0000-0x000000000575A000-memory.dmp

memory/812-156-0x00000000054E0000-0x000000000575A000-memory.dmp

memory/812-158-0x00000000054E0000-0x000000000575A000-memory.dmp

memory/812-160-0x00000000054E0000-0x000000000575A000-memory.dmp

memory/812-162-0x00000000054E0000-0x000000000575A000-memory.dmp

memory/812-164-0x00000000054E0000-0x000000000575A000-memory.dmp

memory/812-166-0x00000000054E0000-0x000000000575A000-memory.dmp

memory/812-168-0x00000000054E0000-0x000000000575A000-memory.dmp

memory/812-170-0x00000000054E0000-0x000000000575A000-memory.dmp

memory/812-172-0x00000000054E0000-0x000000000575A000-memory.dmp

memory/812-174-0x00000000054E0000-0x000000000575A000-memory.dmp

memory/812-176-0x00000000054E0000-0x000000000575A000-memory.dmp

memory/812-178-0x00000000054E0000-0x000000000575A000-memory.dmp

memory/812-180-0x00000000054E0000-0x000000000575A000-memory.dmp

memory/812-182-0x00000000054E0000-0x000000000575A000-memory.dmp

memory/812-184-0x00000000054E0000-0x000000000575A000-memory.dmp

memory/812-186-0x00000000054E0000-0x000000000575A000-memory.dmp

memory/812-188-0x00000000054E0000-0x000000000575A000-memory.dmp

memory/812-190-0x00000000054E0000-0x000000000575A000-memory.dmp

memory/812-192-0x00000000054E0000-0x000000000575A000-memory.dmp

memory/812-194-0x00000000054E0000-0x000000000575A000-memory.dmp

memory/812-196-0x00000000054E0000-0x000000000575A000-memory.dmp

memory/812-198-0x00000000054E0000-0x000000000575A000-memory.dmp

memory/812-672-0x0000000005460000-0x0000000005470000-memory.dmp

memory/812-1180-0x0000000005450000-0x0000000005451000-memory.dmp

memory/812-1181-0x0000000007380000-0x0000000007924000-memory.dmp

memory/5032-1188-0x0000000000400000-0x00000000007CE000-memory.dmp

memory/5032-1192-0x0000000075200000-0x0000000075239000-memory.dmp

memory/5032-1201-0x0000000074EC0000-0x0000000074EF9000-memory.dmp