Malware Analysis Report

2025-01-03 05:10

Sample ID 230801-zr243acb8t
Target Bitwithstart.exe
SHA256 692933bda23e175d356d9dedffd90865a650a23cf86bf119a1276c16fc63ae8f
Tags
upx bitrat persistence 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

692933bda23e175d356d9dedffd90865a650a23cf86bf119a1276c16fc63ae8f

Threat Level: Known bad

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

Malicious Activity Summary

upx bitrat persistence trojan

Bitrat family

BitRAT

UPX packed file

Adds Run key to start application

Suspicious use of NtSetInformationThreadHideFromDebugger

Unsigned PE

Suspicious behavior: RenamesItself

Suspicious use of SetWindowsHookEx

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-08-01 20:57

Signatures

Bitrat family

bitrat

UPX packed file

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-08-01 20:57

Reported

2023-08-01 21:00

Platform

win7-20230712-en

Max time kernel

150s

Max time network

142s

Command Line

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

Signatures

BitRAT

trojan bitrat

UPX packed file

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1014134971-2480516131-292343513-1000\Software\Microsoft\Windows\CurrentVersion\Run\jdfh = "C:\\Users\\Admin\\AppData\\Local\\ndjej\\jdfh.exe" C:\Users\Admin\AppData\Local\Temp\Bitwithstart.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

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

Suspicious behavior: RenamesItself

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

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of SetWindowsHookEx

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

Processes

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

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

Network

Country Destination Domain Proto
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
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

Files

memory/2212-54-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/2212-55-0x0000000000400000-0x00000000007E4000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-08-01 20:57

Reported

2023-08-01 21:00

Platform

win10v2004-20230703-en

Max time kernel

143s

Max time network

149s

Command Line

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

Signatures

BitRAT

trojan bitrat

UPX packed file

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1420546310-613437930-2990200354-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jdfh = "C:\\Users\\Admin\\AppData\\Local\\ndjej\\jdfh.exeԀ" C:\Users\Admin\AppData\Local\Temp\Bitwithstart.exe N/A
Set value (str) \REGISTRY\USER\S-1-5-21-1420546310-613437930-2990200354-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\jdfh = "C:\\Users\\Admin\\AppData\\Local\\ndjej\\jdfh.exe" C:\Users\Admin\AppData\Local\Temp\Bitwithstart.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

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

Suspicious behavior: RenamesItself

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

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of SetWindowsHookEx

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

Processes

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

"C:\Users\Admin\AppData\Local\Temp\Bitwithstart.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 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 126.177.238.8.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 198.52.96.20.in-addr.arpa udp
US 8.8.8.8:53 54.120.234.20.in-addr.arpa udp
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 198.1.85.104.in-addr.arpa 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
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 192.240.110.104.in-addr.arpa udp
US 8.8.8.8:53 86.8.109.52.in-addr.arpa udp
US 8.8.8.8:53 210.143.182.52.in-addr.arpa udp

Files

memory/1824-133-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/1824-134-0x0000000075190000-0x00000000751C9000-memory.dmp

memory/1824-135-0x00000000750C0000-0x00000000750F9000-memory.dmp

memory/1824-136-0x00000000750C0000-0x00000000750F9000-memory.dmp

memory/1824-137-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/1824-138-0x0000000075190000-0x00000000751C9000-memory.dmp

memory/1824-139-0x00000000750C0000-0x00000000750F9000-memory.dmp