Malware Analysis Report

2025-01-03 05:03

Sample ID 230805-3shnlafc36
Target jbitrt.exe
SHA256 3ac3647f6d46ddd5220e483a90d09442b440a01bd66ec95c117ad3d3e018def8
Tags
upx bitrat trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

3ac3647f6d46ddd5220e483a90d09442b440a01bd66ec95c117ad3d3e018def8

Threat Level: Known bad

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

Malicious Activity Summary

upx bitrat trojan

BitRAT

UPX packed file

Suspicious use of NtSetInformationThreadHideFromDebugger

Suspicious use of SetThreadContext

Program crash

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Creates scheduled task(s)

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-08-05 23:47

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2023-08-05 23:46

Reported

2023-08-05 23:50

Platform

win10v2004-20230703-en

Max time kernel

142s

Max time network

158s

Command Line

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

Signatures

UPX packed file

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3628 set thread context of 396 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3628 wrote to memory of 396 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3628 wrote to memory of 396 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3628 wrote to memory of 396 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3628 wrote to memory of 396 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3628 wrote to memory of 396 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3628 wrote to memory of 396 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3628 wrote to memory of 396 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 3628 wrote to memory of 3476 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\SysWOW64\cmd.exe
PID 3628 wrote to memory of 3476 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\SysWOW64\cmd.exe
PID 3628 wrote to memory of 3476 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\SysWOW64\cmd.exe
PID 3628 wrote to memory of 756 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\SysWOW64\cmd.exe
PID 3628 wrote to memory of 756 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\SysWOW64\cmd.exe
PID 3628 wrote to memory of 756 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\SysWOW64\cmd.exe
PID 3628 wrote to memory of 3560 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\SysWOW64\cmd.exe
PID 3628 wrote to memory of 3560 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\SysWOW64\cmd.exe
PID 3628 wrote to memory of 3560 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\SysWOW64\cmd.exe
PID 756 wrote to memory of 4508 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 756 wrote to memory of 4508 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 756 wrote to memory of 4508 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe

Processes

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

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

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"

C:\Windows\SysWOW64\cmd.exe

"cmd" /c mkdir "C:\Users\Admin\AppData\Local\Temp\kbitt"

C:\Windows\SysWOW64\cmd.exe

"cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\jbitrt.exe" "C:\Users\Admin\AppData\Local\Temp\kbitt\kbitt.exe"

C:\Windows\SysWOW64\cmd.exe

"cmd" /c schtasks /create /sc minute /mo 10 /tn "Nano" /tr "'C:\Users\Admin\AppData\Local\Temp\kbitt\kbitt.exe'" /f

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 396 -ip 396

C:\Windows\SysWOW64\schtasks.exe

schtasks /create /sc minute /mo 10 /tn "Nano" /tr "'C:\Users\Admin\AppData\Local\Temp\kbitt\kbitt.exe'" /f

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 396 -s 536

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 396 -ip 396

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 396 -s 540

Network

Country Destination Domain Proto
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 1.208.79.178.in-addr.arpa udp
US 8.8.8.8:53 73.254.224.20.in-addr.arpa udp
US 8.8.8.8:53 208.143.182.52.in-addr.arpa udp

Files

memory/3628-133-0x00000000749A0000-0x0000000075150000-memory.dmp

memory/3628-134-0x0000000000B60000-0x0000000000D0C000-memory.dmp

memory/3628-135-0x00000000056A0000-0x00000000056B0000-memory.dmp

memory/3628-136-0x00000000749A0000-0x0000000075150000-memory.dmp

memory/3628-137-0x00000000056A0000-0x00000000056B0000-memory.dmp

memory/396-139-0x0000000000A00000-0x0000000000DE4000-memory.dmp

memory/396-141-0x0000000000A00000-0x0000000000DE4000-memory.dmp

memory/3628-142-0x00000000749A0000-0x0000000075150000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2023-08-05 23:46

Reported

2023-08-05 23:50

Platform

win7-20230712-en

Max time kernel

143s

Max time network

149s

Command Line

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

Signatures

BitRAT

trojan bitrat

UPX packed file

upx
Description Indicator Process Target
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Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2196 set thread context of 2916 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2196 wrote to memory of 2916 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2196 wrote to memory of 2916 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2196 wrote to memory of 2916 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2196 wrote to memory of 2916 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2196 wrote to memory of 2916 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2196 wrote to memory of 2916 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2196 wrote to memory of 2916 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2196 wrote to memory of 2916 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2196 wrote to memory of 2916 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2196 wrote to memory of 2916 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2196 wrote to memory of 2916 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 2196 wrote to memory of 2140 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\SysWOW64\cmd.exe
PID 2196 wrote to memory of 2140 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\SysWOW64\cmd.exe
PID 2196 wrote to memory of 2140 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\SysWOW64\cmd.exe
PID 2196 wrote to memory of 2140 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\SysWOW64\cmd.exe
PID 2196 wrote to memory of 2852 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\SysWOW64\cmd.exe
PID 2196 wrote to memory of 2852 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\SysWOW64\cmd.exe
PID 2196 wrote to memory of 2852 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\SysWOW64\cmd.exe
PID 2196 wrote to memory of 2852 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\SysWOW64\cmd.exe
PID 2196 wrote to memory of 2832 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\SysWOW64\cmd.exe
PID 2196 wrote to memory of 2832 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\SysWOW64\cmd.exe
PID 2196 wrote to memory of 2832 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\SysWOW64\cmd.exe
PID 2196 wrote to memory of 2832 N/A C:\Users\Admin\AppData\Local\Temp\jbitrt.exe C:\Windows\SysWOW64\cmd.exe
PID 2852 wrote to memory of 2736 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 2852 wrote to memory of 2736 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 2852 wrote to memory of 2736 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 2852 wrote to memory of 2736 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe

Processes

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

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

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"

C:\Windows\SysWOW64\cmd.exe

"cmd" /c mkdir "C:\Users\Admin\AppData\Local\Temp\kbitt"

C:\Windows\SysWOW64\cmd.exe

"cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\jbitrt.exe" "C:\Users\Admin\AppData\Local\Temp\kbitt\kbitt.exe"

C:\Windows\SysWOW64\cmd.exe

"cmd" /c schtasks /create /sc minute /mo 10 /tn "Nano" /tr "'C:\Users\Admin\AppData\Local\Temp\kbitt\kbitt.exe'" /f

C:\Windows\SysWOW64\schtasks.exe

schtasks /create /sc minute /mo 10 /tn "Nano" /tr "'C:\Users\Admin\AppData\Local\Temp\kbitt\kbitt.exe'" /f

Network

Country Destination Domain Proto
US 8.8.8.8:53 backu4734.duckdns.org udp
US 8.8.8.8:53 backu4734.duckdns.org udp
DE 167.235.75.225:7904 backu4734.duckdns.org tcp
DE 167.235.75.225:7904 backu4734.duckdns.org tcp
DE 167.235.75.225:7904 backu4734.duckdns.org tcp
DE 167.235.75.225:7904 backu4734.duckdns.org tcp
DE 167.235.75.225:7904 backu4734.duckdns.org tcp
US 8.8.8.8:53 backu4734.duckdns.org udp
DE 167.235.75.225:7904 backu4734.duckdns.org tcp
DE 167.235.75.225:7904 backu4734.duckdns.org tcp

Files

memory/2196-54-0x0000000001300000-0x00000000014AC000-memory.dmp

memory/2196-55-0x0000000073E60000-0x000000007454E000-memory.dmp

memory/2196-56-0x0000000004C20000-0x0000000004C60000-memory.dmp

memory/2196-57-0x0000000073E60000-0x000000007454E000-memory.dmp

memory/2196-58-0x0000000004C20000-0x0000000004C60000-memory.dmp

memory/2916-59-0x0000000000410000-0x00000000007F4000-memory.dmp

memory/2916-60-0x0000000000410000-0x00000000007F4000-memory.dmp

memory/2916-62-0x0000000000410000-0x00000000007F4000-memory.dmp

memory/2916-63-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2916-65-0x0000000000410000-0x00000000007F4000-memory.dmp

memory/2916-67-0x0000000000410000-0x00000000007F4000-memory.dmp

memory/2916-66-0x0000000000410000-0x00000000007F4000-memory.dmp

memory/2196-68-0x0000000073E60000-0x000000007454E000-memory.dmp

memory/2916-70-0x0000000000410000-0x00000000007F4000-memory.dmp

memory/2916-71-0x0000000000410000-0x00000000007F4000-memory.dmp

memory/2916-74-0x0000000000410000-0x00000000007F4000-memory.dmp

memory/2916-75-0x0000000000410000-0x00000000007F4000-memory.dmp

memory/2916-76-0x0000000000410000-0x00000000007F4000-memory.dmp

memory/2916-77-0x0000000000410000-0x00000000007F4000-memory.dmp

memory/2916-78-0x0000000000410000-0x00000000007F4000-memory.dmp

memory/2916-79-0x0000000000410000-0x00000000007F4000-memory.dmp

memory/2916-81-0x0000000000410000-0x00000000007F4000-memory.dmp

memory/2916-82-0x0000000000410000-0x00000000007F4000-memory.dmp

memory/2916-84-0x0000000000410000-0x00000000007F4000-memory.dmp

memory/2916-83-0x0000000000410000-0x00000000007F4000-memory.dmp

memory/2916-86-0x0000000000410000-0x00000000007F4000-memory.dmp

memory/2916-85-0x0000000000410000-0x00000000007F4000-memory.dmp

memory/2916-87-0x0000000000410000-0x00000000007F4000-memory.dmp

memory/2916-88-0x0000000000410000-0x00000000007F4000-memory.dmp

memory/2916-89-0x0000000000410000-0x00000000007F4000-memory.dmp

memory/2916-90-0x0000000000410000-0x00000000007F4000-memory.dmp

memory/2916-91-0x0000000000410000-0x00000000007F4000-memory.dmp

memory/2916-92-0x0000000000410000-0x00000000007F4000-memory.dmp

memory/2916-94-0x0000000000410000-0x00000000007F4000-memory.dmp

memory/2916-93-0x0000000000410000-0x00000000007F4000-memory.dmp