Malware Analysis Report

2024-10-19 08:59

Sample ID 240825-wdwtcawekd
Target GT743.7z
SHA256 57fc6db0df25bde1c562461f02760e9431fa3ed31212406313458a8392dc6859
Tags
discovery
score
6/10

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: behavioral3

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
6/10

SHA256

57fc6db0df25bde1c562461f02760e9431fa3ed31212406313458a8392dc6859

Threat Level: Shows suspicious behavior

The file GT743.7z was found to be: Shows suspicious behavior.

Malicious Activity Summary

discovery

Looks up external IP address via web service

Suspicious use of SetThreadContext

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-25 17:49

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-25 17:48

Reported

2024-08-25 17:55

Platform

win7-20240705-it

Max time kernel

120s

Max time network

127s

Command Line

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

Signatures

Looks up external IP address via web service

Description Indicator Process Target
N/A ipinfo.io N/A N/A
N/A ipinfo.io N/A N/A
N/A api.myip.com N/A N/A
N/A api.myip.com N/A N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1016 set thread context of 2464 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\File.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1016 wrote to memory of 1204 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1016 wrote to memory of 1204 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1016 wrote to memory of 1204 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1016 wrote to memory of 1204 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1016 wrote to memory of 1204 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1016 wrote to memory of 1204 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1016 wrote to memory of 1204 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1016 wrote to memory of 2464 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1016 wrote to memory of 2464 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1016 wrote to memory of 2464 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1016 wrote to memory of 2464 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1016 wrote to memory of 2464 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1016 wrote to memory of 2464 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1016 wrote to memory of 2464 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1016 wrote to memory of 2464 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1016 wrote to memory of 2464 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1016 wrote to memory of 2464 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1016 wrote to memory of 2464 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1016 wrote to memory of 2464 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1016 wrote to memory of 2464 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 1016 wrote to memory of 2464 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Processes

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

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

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

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

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

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

Network

Country Destination Domain Proto
NL 45.91.200.135:80 45.91.200.135 tcp
US 8.8.8.8:53 api.myip.com udp
US 172.67.75.163:443 api.myip.com tcp
US 8.8.8.8:53 ipinfo.io udp
US 34.117.59.81:443 ipinfo.io tcp
US 34.117.59.81:443 ipinfo.io tcp

Files

memory/1016-0-0x0000000073BEE000-0x0000000073BEF000-memory.dmp

memory/1016-1-0x00000000002C0000-0x0000000000B52000-memory.dmp

memory/1016-2-0x0000000073BE0000-0x00000000742CE000-memory.dmp

memory/1016-3-0x0000000005660000-0x0000000005990000-memory.dmp

memory/1016-4-0x0000000006AC0000-0x0000000006DE8000-memory.dmp

memory/1016-5-0x0000000000D10000-0x0000000000D32000-memory.dmp

memory/2464-10-0x0000000000400000-0x00000000005E0000-memory.dmp

memory/2464-8-0x0000000000400000-0x00000000005E0000-memory.dmp

memory/2464-6-0x0000000000400000-0x00000000005E0000-memory.dmp

memory/2464-22-0x0000000000400000-0x00000000005E0000-memory.dmp

memory/2464-20-0x0000000000400000-0x00000000005E0000-memory.dmp

memory/2464-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2464-24-0x0000000000400000-0x00000000005E0000-memory.dmp

memory/1016-25-0x0000000073BE0000-0x00000000742CE000-memory.dmp

memory/2464-26-0x0000000000400000-0x00000000005E0000-memory.dmp

memory/2464-16-0x0000000000400000-0x00000000005E0000-memory.dmp

memory/2464-14-0x0000000000400000-0x00000000005E0000-memory.dmp

memory/2464-12-0x0000000000400000-0x00000000005E0000-memory.dmp

memory/2464-27-0x0000000000400000-0x00000000005E0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-25 17:48

Reported

2024-08-25 17:55

Platform

win10-20240611-it

Max time kernel

310s

Max time network

322s

Command Line

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

Signatures

Looks up external IP address via web service

Description Indicator Process Target
N/A api.myip.com N/A N/A
N/A api.myip.com N/A N/A
N/A ipinfo.io N/A N/A
N/A ipinfo.io N/A N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 5048 set thread context of 1584 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\File.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 5048 wrote to memory of 3724 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 5048 wrote to memory of 3724 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 5048 wrote to memory of 3724 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 5048 wrote to memory of 1584 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 5048 wrote to memory of 1584 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 5048 wrote to memory of 1584 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 5048 wrote to memory of 1584 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 5048 wrote to memory of 1584 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 5048 wrote to memory of 1584 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 5048 wrote to memory of 1584 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 5048 wrote to memory of 1584 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 5048 wrote to memory of 1584 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
PID 5048 wrote to memory of 1584 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

Processes

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

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

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

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

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

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

Network

Country Destination Domain Proto
NL 195.10.205.48:80 195.10.205.48 tcp
US 8.8.8.8:53 api.myip.com udp
US 104.26.9.59:443 api.myip.com tcp
US 8.8.8.8:53 48.205.10.195.in-addr.arpa udp
US 8.8.8.8:53 ipinfo.io udp
US 34.117.59.81:443 ipinfo.io tcp
US 8.8.8.8:53 59.9.26.104.in-addr.arpa udp
US 8.8.8.8:53 81.59.117.34.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 2.173.189.20.in-addr.arpa udp
US 8.8.8.8:53 25.140.123.92.in-addr.arpa udp

Files

memory/5048-0-0x0000000073E0E000-0x0000000073E0F000-memory.dmp

memory/5048-1-0x00000000009C0000-0x0000000001252000-memory.dmp

memory/5048-2-0x0000000005B80000-0x0000000005C1C000-memory.dmp

memory/5048-3-0x0000000073E00000-0x00000000744EE000-memory.dmp

memory/5048-4-0x0000000005D40000-0x0000000006070000-memory.dmp

memory/5048-5-0x00000000071A0000-0x00000000074C8000-memory.dmp

memory/5048-6-0x0000000005B30000-0x0000000005B52000-memory.dmp

memory/1584-7-0x0000000000400000-0x00000000005E0000-memory.dmp

memory/1584-10-0x0000000000400000-0x00000000005E0000-memory.dmp

memory/1584-12-0x0000000000400000-0x00000000005E0000-memory.dmp

memory/1584-9-0x0000000000400000-0x00000000005E0000-memory.dmp

memory/5048-13-0x0000000073E00000-0x00000000744EE000-memory.dmp

Analysis: behavioral3

Detonation Overview

Submitted

2024-08-25 17:48

Reported

2024-08-25 17:55

Platform

win10v2004-20240802-it

Max time kernel

152s

Max time network

275s

Command Line

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

Signatures

Looks up external IP address via web service

Description Indicator Process Target
N/A api.myip.com N/A N/A
N/A api.myip.com N/A N/A
N/A ipinfo.io N/A N/A
N/A ipinfo.io N/A N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1396 set thread context of 1424 N/A C:\Users\Admin\AppData\Local\Temp\File.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\File.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe N/A

Processes

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

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

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 45.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
NL 45.91.200.135:80 45.91.200.135 tcp
US 8.8.8.8:53 api.myip.com udp
US 8.8.8.8:53 135.200.91.45.in-addr.arpa udp
US 104.26.9.59:443 api.myip.com tcp
US 8.8.8.8:53 ipinfo.io udp
US 34.117.59.81:443 ipinfo.io tcp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 59.9.26.104.in-addr.arpa udp
US 8.8.8.8:53 81.59.117.34.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 131.72.42.20.in-addr.arpa udp

Files

memory/1396-0-0x00000000746BE000-0x00000000746BF000-memory.dmp

memory/1396-1-0x0000000000940000-0x00000000011D2000-memory.dmp

memory/1396-2-0x0000000005CF0000-0x0000000005D8C000-memory.dmp

memory/1396-3-0x00000000746B0000-0x0000000074E60000-memory.dmp

memory/1396-4-0x0000000005E90000-0x00000000061C0000-memory.dmp

memory/1396-5-0x00000000072F0000-0x0000000007618000-memory.dmp

memory/1396-6-0x0000000005BA0000-0x0000000005BC2000-memory.dmp

memory/1424-7-0x0000000000400000-0x00000000005E0000-memory.dmp

memory/1396-9-0x00000000746B0000-0x0000000074E60000-memory.dmp

memory/1424-10-0x0000000000400000-0x00000000005E0000-memory.dmp

memory/1424-13-0x0000000000400000-0x00000000005E0000-memory.dmp

memory/1424-11-0x0000000000400000-0x00000000005E0000-memory.dmp