Malware Analysis Report

2025-01-02 03:11

Sample ID 240816-pxf4nsvemd
Target 2024-08-16_138f3e98b496c8f3b17cb1c418e56a2e_poet-rat_snatch
SHA256 01fef4b2e1500e9ab7c52455175381c902315f1a052809cc2e487951ef758e3b
Tags
remcos remotehost discovery evasion rat themida
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

01fef4b2e1500e9ab7c52455175381c902315f1a052809cc2e487951ef758e3b

Threat Level: Known bad

The file 2024-08-16_138f3e98b496c8f3b17cb1c418e56a2e_poet-rat_snatch was found to be: Known bad.

Malicious Activity Summary

remcos remotehost discovery evasion rat themida

Remcos

Suspicious use of NtCreateUserProcessOtherParentProcess

Identifies VirtualBox via ACPI registry values (likely anti-VM)

Themida packer

Checks BIOS information in registry

Legitimate hosting services abused for malware hosting/C2

Suspicious use of NtSetInformationThreadHideFromDebugger

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of SendNotifyMessage

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary

Suspicious use of FindShellTrayWindow

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-16 12:42

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-16 12:42

Reported

2024-08-16 12:44

Platform

win7-20240704-en

Max time kernel

118s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-08-16_138f3e98b496c8f3b17cb1c418e56a2e_poet-rat_snatch.exe"

Signatures

N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-08-16_138f3e98b496c8f3b17cb1c418e56a2e_poet-rat_snatch.exe

"C:\Users\Admin\AppData\Local\Temp\2024-08-16_138f3e98b496c8f3b17cb1c418e56a2e_poet-rat_snatch.exe"

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-16 12:42

Reported

2024-08-16 12:44

Platform

win10v2004-20240802-en

Max time kernel

150s

Max time network

151s

Command Line

C:\Windows\Explorer.EXE

Signatures

Remcos

rat remcos

Suspicious use of NtCreateUserProcessOtherParentProcess

Description Indicator Process Target
PID 2308 created 3464 N/A C:\Users\Admin\AppData\Local\Temp\2024-08-16_138f3e98b496c8f3b17cb1c418e56a2e_poet-rat_snatch.exe C:\Windows\Explorer.EXE

Identifies VirtualBox via ACPI registry values (likely anti-VM)

evasion
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ C:\Windows\SysWOW64\grpconv.exe N/A

Checks BIOS information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion C:\Windows\SysWOW64\grpconv.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion C:\Windows\SysWOW64\grpconv.exe N/A

Themida packer

themida
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Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A raw.githubusercontent.com N/A N/A
N/A raw.githubusercontent.com N/A N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\grpconv.exe N/A

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-08-16_138f3e98b496c8f3b17cb1c418e56a2e_poet-rat_snatch.exe N/A

Suspicious use of FindShellTrayWindow

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

Suspicious use of SendNotifyMessage

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

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\2024-08-16_138f3e98b496c8f3b17cb1c418e56a2e_poet-rat_snatch.exe

"C:\Users\Admin\AppData\Local\Temp\2024-08-16_138f3e98b496c8f3b17cb1c418e56a2e_poet-rat_snatch.exe"

C:\Windows\SysWOW64\grpconv.exe

C:\Windows\SysWOW64\grpconv.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 raw.githubusercontent.com udp
US 185.199.111.133:443 raw.githubusercontent.com tcp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 240.143.123.92.in-addr.arpa udp
US 8.8.8.8:53 133.111.199.185.in-addr.arpa udp
N/A 192.168.0.195:2404 tcp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
N/A 192.168.0.195:2404 tcp
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 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
N/A 192.168.0.195:2404 tcp
US 8.8.8.8:53 25.140.123.92.in-addr.arpa udp
N/A 192.168.0.195:2404 tcp
N/A 192.168.0.195:2404 tcp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp
N/A 192.168.0.195:2404 tcp
N/A 192.168.0.195:2404 tcp

Files

memory/3368-0-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-1-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-2-0x0000000077564000-0x0000000077566000-memory.dmp

memory/3368-3-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-7-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-6-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-13-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-17-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-20-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-19-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-21-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-18-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-16-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-22-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-15-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-14-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-24-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-12-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-4-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-11-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-10-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-9-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-8-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-5-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-23-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-25-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-26-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-27-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-28-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-29-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-30-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-31-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-32-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-33-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-34-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-35-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-36-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-37-0x00000000012B0000-0x00000000019DF000-memory.dmp

memory/3368-38-0x00000000012B0000-0x00000000019DF000-memory.dmp