Malware Analysis Report

2025-01-03 05:02

Sample ID 231226-mprjbsgff9
Target 67ec6b9c6ecea354319ea57391b818f9
SHA256 ad0838439c7f741b80af14870d6335e02e2d76ac29d8d1fe7506f66562c26339
Tags
bitrat persistence trojan upx
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

ad0838439c7f741b80af14870d6335e02e2d76ac29d8d1fe7506f66562c26339

Threat Level: Known bad

The file 67ec6b9c6ecea354319ea57391b818f9 was found to be: Known bad.

Malicious Activity Summary

bitrat persistence trojan upx

BitRAT

CustAttr .NET packer

UPX packed file

Adds Run key to start application

Suspicious use of NtSetInformationThreadHideFromDebugger

Suspicious use of SetThreadContext

Unsigned PE

Suspicious behavior: RenamesItself

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-26 10:38

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-26 10:38

Reported

2024-01-06 10:18

Platform

win7-20231215-en

Max time kernel

93s

Max time network

158s

Command Line

"C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe"

Signatures

BitRAT

trojan bitrat

CustAttr .NET packer

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

UPX packed file

upx
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
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-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\Googlechromeinit = "C:\\Users\\Admin\\AppData\\Local\\Googlechromeinite\\Googlechromeinit.exe" C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3040 set thread context of 2824 N/A C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe N/A
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3040 wrote to memory of 2824 N/A C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe
PID 3040 wrote to memory of 2824 N/A C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe
PID 3040 wrote to memory of 2824 N/A C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe
PID 3040 wrote to memory of 2824 N/A C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe
PID 3040 wrote to memory of 2824 N/A C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe
PID 3040 wrote to memory of 2824 N/A C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe
PID 3040 wrote to memory of 2824 N/A C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe
PID 3040 wrote to memory of 2824 N/A C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe

Processes

C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe

"C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe"

C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe

"C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 jairoandresotalvarorend.linkpc.net udp
SG 139.99.66.103:9085 jairoandresotalvarorend.linkpc.net tcp
SG 139.99.66.103:9085 jairoandresotalvarorend.linkpc.net tcp
SG 139.99.66.103:9085 jairoandresotalvarorend.linkpc.net tcp

Files

memory/3040-0-0x00000000012A0000-0x00000000014BC000-memory.dmp

memory/3040-1-0x0000000073E50000-0x000000007453E000-memory.dmp

memory/3040-2-0x0000000000700000-0x0000000000740000-memory.dmp

memory/3040-3-0x00000000002C0000-0x00000000002D2000-memory.dmp

memory/3040-4-0x0000000073E50000-0x000000007453E000-memory.dmp

memory/3040-5-0x0000000000700000-0x0000000000740000-memory.dmp

memory/3040-6-0x0000000008500000-0x00000000086C4000-memory.dmp

memory/3040-7-0x0000000009C80000-0x0000000009DFC000-memory.dmp

memory/2824-10-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/2824-14-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/2824-16-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/2824-17-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/3040-19-0x0000000073E50000-0x000000007453E000-memory.dmp

memory/2824-18-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/2824-15-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/2824-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2824-11-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/2824-8-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/2824-20-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/2824-21-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/2824-24-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/2824-26-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/2824-27-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/2824-25-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/2824-29-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/2824-28-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/2824-31-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/2824-30-0x0000000000400000-0x00000000007E4000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-26 10:38

Reported

2024-01-06 10:17

Platform

win10v2004-20231222-en

Max time kernel

49s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe"

Signatures

BitRAT

trojan bitrat

CustAttr .NET packer

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

UPX packed file

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

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2256 set thread context of 1696 N/A C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe N/A
Token: SeShutdownPrivilege N/A C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2256 wrote to memory of 4092 N/A C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe
PID 2256 wrote to memory of 4092 N/A C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe
PID 2256 wrote to memory of 4092 N/A C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe
PID 2256 wrote to memory of 1696 N/A C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe
PID 2256 wrote to memory of 1696 N/A C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe
PID 2256 wrote to memory of 1696 N/A C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe
PID 2256 wrote to memory of 1696 N/A C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe
PID 2256 wrote to memory of 1696 N/A C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe
PID 2256 wrote to memory of 1696 N/A C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe
PID 2256 wrote to memory of 1696 N/A C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe

Processes

C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe

"C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe"

C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe

"C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe"

C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe

"C:\Users\Admin\AppData\Local\Temp\67ec6b9c6ecea354319ea57391b818f9.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 udp
US 8.8.8.8:53 udp
US 8.8.8.8:53 udp
US 8.8.8.8:53 udp
US 8.8.8.8:53 udp
N/A 40.127.169.103:443 tcp
US 8.8.8.8:53 udp
US 8.8.8.8:53 udp
N/A 13.85.23.206:443 tcp
US 8.8.8.8:53 udp
US 8.8.8.8:53 udp
US 8.8.8.8:53 udp
N/A 40.127.169.103:443 tcp
N/A 40.127.169.103:443 tcp
US 8.8.8.8:53 udp
US 93.184.221.240:80 tcp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
SG 139.99.66.103:9085 tcp
GB 96.17.178.194:80 tcp
SG 139.99.66.103:9085 tcp

Files

memory/2256-2-0x0000000005500000-0x000000000559C000-memory.dmp

memory/2256-1-0x00000000743C0000-0x0000000074B70000-memory.dmp

memory/2256-3-0x0000000005B50000-0x00000000060F4000-memory.dmp

memory/2256-4-0x00000000055A0000-0x0000000005632000-memory.dmp

memory/2256-0-0x0000000000890000-0x0000000000AAC000-memory.dmp

memory/2256-7-0x00000000057D0000-0x0000000005826000-memory.dmp

memory/2256-6-0x00000000054A0000-0x00000000054AA000-memory.dmp

memory/2256-5-0x0000000005760000-0x0000000005770000-memory.dmp

memory/2256-8-0x0000000001510000-0x0000000001522000-memory.dmp

memory/2256-9-0x00000000743C0000-0x0000000074B70000-memory.dmp

memory/2256-10-0x0000000005760000-0x0000000005770000-memory.dmp

memory/2256-11-0x0000000008610000-0x00000000087D4000-memory.dmp

memory/1696-13-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/1696-14-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/2256-19-0x00000000743C0000-0x0000000074B70000-memory.dmp

memory/1696-18-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/1696-17-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/1696-16-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/2256-12-0x0000000009B70000-0x0000000009CEC000-memory.dmp

memory/1696-20-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/1696-21-0x00000000742D0000-0x0000000074309000-memory.dmp

memory/1696-22-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/1696-24-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/1696-27-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/1696-28-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/1696-29-0x0000000074670000-0x00000000746A9000-memory.dmp

memory/1696-26-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/1696-25-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/1696-23-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/1696-30-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/1696-32-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/1696-33-0x0000000074670000-0x00000000746A9000-memory.dmp

memory/1696-31-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/1696-36-0x0000000074670000-0x00000000746A9000-memory.dmp

memory/1696-35-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/1696-34-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/1696-37-0x0000000000400000-0x00000000007E4000-memory.dmp

memory/1696-39-0x0000000074670000-0x00000000746A9000-memory.dmp

memory/1696-38-0x0000000000400000-0x00000000007E4000-memory.dmp