Malware Analysis Report

2025-01-02 03:12

Sample ID 240814-r7f8jayajb
Target استعلام برای نقل قول.tbz
SHA256 96d9f0eb610044684be22059f2b3d8f02cc719be989947ea99b2df99b5b98e84
Tags
remcos remotehost discovery execution persistence rat
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

96d9f0eb610044684be22059f2b3d8f02cc719be989947ea99b2df99b5b98e84

Threat Level: Known bad

The file استعلام برای نقل قول.tbz was found to be: Known bad.

Malicious Activity Summary

remcos remotehost discovery execution persistence rat

Remcos

Command and Scripting Interpreter: PowerShell

Checks computer location settings

Adds Run key to start application

Suspicious use of SetThreadContext

System Location Discovery: System Language Discovery

Unsigned PE

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-14 14:49

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-14 14:49

Reported

2024-08-14 14:52

Platform

win7-20240704-en

Max time kernel

147s

Max time network

133s

Command Line

"C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe"

Signatures

Remcos

rat remcos

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Run\استعلام برای نقل قول = "C:\\Users\\Admin\\استعلام برای نقل قول.exe" C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2592 set thread context of 2832 N/A C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2592 wrote to memory of 2468 N/A C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
PID 2592 wrote to memory of 2468 N/A C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
PID 2592 wrote to memory of 2468 N/A C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
PID 2592 wrote to memory of 2832 N/A C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
PID 2592 wrote to memory of 2832 N/A C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
PID 2592 wrote to memory of 2832 N/A C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
PID 2592 wrote to memory of 2832 N/A C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
PID 2592 wrote to memory of 2832 N/A C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
PID 2592 wrote to memory of 2832 N/A C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
PID 2592 wrote to memory of 2832 N/A C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
PID 2592 wrote to memory of 2832 N/A C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
PID 2592 wrote to memory of 2832 N/A C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
PID 2592 wrote to memory of 2832 N/A C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
PID 2592 wrote to memory of 2832 N/A C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
PID 2592 wrote to memory of 2832 N/A C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
PID 2592 wrote to memory of 2832 N/A C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe

Processes

C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe

"C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe"

C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath $env:UserProfile

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 eadzagba1.duckdns.org udp
US 198.46.178.133:4877 eadzagba1.duckdns.org tcp
US 8.8.8.8:53 geoplugin.net udp
NL 178.237.33.50:80 geoplugin.net tcp

Files

memory/2468-4-0x000007FEF5A2E000-0x000007FEF5A2F000-memory.dmp

memory/2468-5-0x000000001B1A0000-0x000000001B482000-memory.dmp

memory/2468-7-0x000007FEF5770000-0x000007FEF610D000-memory.dmp

memory/2468-6-0x00000000025A0000-0x00000000025A8000-memory.dmp

memory/2468-10-0x000007FEF5770000-0x000007FEF610D000-memory.dmp

memory/2468-9-0x000007FEF5770000-0x000007FEF610D000-memory.dmp

memory/2832-13-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2832-14-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2832-11-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2832-15-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2832-16-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2468-17-0x00000000028B0000-0x0000000002930000-memory.dmp

memory/2832-18-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2832-19-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2832-20-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2468-21-0x000007FEF5770000-0x000007FEF610D000-memory.dmp

memory/2832-23-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2832-25-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2832-24-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2832-26-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2832-27-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2832-28-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2832-29-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2832-30-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2832-31-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2832-32-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2832-33-0x0000000000400000-0x0000000000482000-memory.dmp

memory/2832-34-0x0000000000400000-0x0000000000482000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-14 14:49

Reported

2024-08-14 14:52

Platform

win10v2004-20240802-en

Max time kernel

149s

Max time network

139s

Command Line

"C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe"

Signatures

Remcos

rat remcos

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\استعلام برای نقل قول = "C:\\Users\\Admin\\استعلام برای نقل قول.exe" C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4212 set thread context of 764 N/A C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4212 wrote to memory of 4496 N/A C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
PID 4212 wrote to memory of 4496 N/A C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
PID 4212 wrote to memory of 764 N/A C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 4212 wrote to memory of 764 N/A C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 4212 wrote to memory of 764 N/A C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 4212 wrote to memory of 764 N/A C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 4212 wrote to memory of 764 N/A C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 4212 wrote to memory of 764 N/A C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 4212 wrote to memory of 764 N/A C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 4212 wrote to memory of 764 N/A C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 4212 wrote to memory of 764 N/A C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 4212 wrote to memory of 764 N/A C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 4212 wrote to memory of 764 N/A C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe
PID 4212 wrote to memory of 764 N/A C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe

Processes

C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe

"C:\Users\Admin\AppData\Local\Temp\استعلام برای نقل قول.exe"

C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath $env:UserProfile

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 eadzagba1.duckdns.org udp
US 198.46.178.133:4877 eadzagba1.duckdns.org tcp
US 8.8.8.8:53 133.178.46.198.in-addr.arpa udp
US 8.8.8.8:53 geoplugin.net udp
NL 178.237.33.50:80 geoplugin.net tcp
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 17.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 50.33.237.178.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 192.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.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

Files

memory/4496-0-0x00007FFD1A743000-0x00007FFD1A745000-memory.dmp

memory/4496-1-0x0000020AD9D90000-0x0000020AD9DB2000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_etnyef4z.3cj.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/4496-11-0x00007FFD1A740000-0x00007FFD1B201000-memory.dmp

memory/4496-12-0x00007FFD1A740000-0x00007FFD1B201000-memory.dmp

memory/764-14-0x0000000000400000-0x0000000000482000-memory.dmp

memory/764-15-0x0000000000400000-0x0000000000482000-memory.dmp

memory/4496-18-0x00007FFD1A740000-0x00007FFD1B201000-memory.dmp

memory/764-19-0x0000000000400000-0x0000000000482000-memory.dmp

memory/764-20-0x0000000000400000-0x0000000000482000-memory.dmp

memory/764-21-0x0000000000400000-0x0000000000482000-memory.dmp

memory/764-22-0x0000000000400000-0x0000000000482000-memory.dmp

memory/764-23-0x0000000000400000-0x0000000000482000-memory.dmp

memory/764-24-0x0000000000400000-0x0000000000482000-memory.dmp

memory/764-25-0x0000000000400000-0x0000000000482000-memory.dmp

memory/764-27-0x0000000000400000-0x0000000000482000-memory.dmp

memory/764-28-0x0000000000400000-0x0000000000482000-memory.dmp

memory/764-29-0x0000000000400000-0x0000000000482000-memory.dmp

memory/764-30-0x0000000000400000-0x0000000000482000-memory.dmp

memory/764-31-0x0000000000400000-0x0000000000482000-memory.dmp

memory/764-32-0x0000000000400000-0x0000000000482000-memory.dmp

memory/764-33-0x0000000000400000-0x0000000000482000-memory.dmp

memory/764-34-0x0000000000400000-0x0000000000482000-memory.dmp

memory/764-36-0x0000000000400000-0x0000000000482000-memory.dmp

memory/764-35-0x0000000000400000-0x0000000000482000-memory.dmp

memory/764-37-0x0000000000400000-0x0000000000482000-memory.dmp

memory/764-38-0x0000000000400000-0x0000000000482000-memory.dmp