Malware Analysis Report

2025-05-05 21:47

Sample ID 240829-ncbg1sybng
Target Nettably.exe
SHA256 89a9123df318a4c77a378e687f5e4c1c7f7806d64c85a7360a556b487343a49b
Tags
vipkeylogger discovery execution keylogger stealer
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

89a9123df318a4c77a378e687f5e4c1c7f7806d64c85a7360a556b487343a49b

Threat Level: Known bad

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

Malicious Activity Summary

vipkeylogger discovery execution keylogger stealer

VIPKeylogger

Command and Scripting Interpreter: PowerShell

Looks up external IP address via web service

Legitimate hosting services abused for malware hosting/C2

Drops file in System32 directory

Suspicious use of NtCreateThreadExHideFromDebugger

Suspicious use of SetThreadContext

Suspicious use of NtSetInformationThreadHideFromDebugger

Drops file in Windows directory

Drops file in Program Files directory

Program crash

System Location Discovery: System Language Discovery

Enumerates physical storage devices

NSIS installer

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-29 11:14

Signatures

NSIS installer

installer
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

2024-08-29 11:14

Reported

2024-08-29 11:17

Platform

win7-20240708-en

Max time kernel

119s

Max time network

119s

Command Line

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

Signatures

VIPKeylogger

stealer keylogger vipkeylogger

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Legitimate hosting services abused for malware hosting/C2

Description Indicator Process Target
N/A drive.google.com N/A N/A
N/A drive.google.com N/A N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A checkip.dyndns.org N/A N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\legionrernes.Bac C:\Users\Admin\AppData\Local\Temp\Nettably.exe N/A

Suspicious use of NtCreateThreadExHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe N/A

Suspicious use of NtSetInformationThreadHideFromDebugger

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2764 set thread context of 2676 N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files (x86)\Common Files\underskridelser.ini C:\Users\Admin\AppData\Local\Temp\Nettably.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\Fonts\battable.ini C:\Users\Admin\AppData\Local\Temp\Nettably.exe N/A

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:\Users\Admin\AppData\Local\Temp\Nettably.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3024 wrote to memory of 2764 N/A C:\Users\Admin\AppData\Local\Temp\Nettably.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 3024 wrote to memory of 2764 N/A C:\Users\Admin\AppData\Local\Temp\Nettably.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 3024 wrote to memory of 2764 N/A C:\Users\Admin\AppData\Local\Temp\Nettably.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 3024 wrote to memory of 2764 N/A C:\Users\Admin\AppData\Local\Temp\Nettably.exe C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
PID 2764 wrote to memory of 2676 N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe
PID 2764 wrote to memory of 2676 N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe
PID 2764 wrote to memory of 2676 N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe
PID 2764 wrote to memory of 2676 N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe
PID 2764 wrote to memory of 2676 N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe
PID 2764 wrote to memory of 2676 N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe

Processes

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

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

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

"powershell.exe" -windowstyle hidden "$Kludgy=Get-Content 'C:\Users\Admin\AppData\Local\errancies\Tansies.Tem';$Crushes53=$Kludgy.SubString(52844,3);.$Crushes53($Kludgy)

C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe

"C:\Program Files (x86)\Windows Photo Viewer\ImagingDevices.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 drive.google.com udp
GB 142.250.200.14:443 drive.google.com tcp
US 8.8.8.8:53 c.pki.goog udp
GB 142.250.178.3:80 c.pki.goog tcp
US 8.8.8.8:53 o.pki.goog udp
GB 142.250.178.3:80 o.pki.goog tcp
US 8.8.8.8:53 drive.usercontent.google.com udp
GB 142.250.178.1:443 drive.usercontent.google.com tcp
US 8.8.8.8:53 checkip.dyndns.org udp
DE 193.122.6.168:80 checkip.dyndns.org tcp
US 8.8.8.8:53 reallyfreegeoip.org udp
US 188.114.96.0:443 reallyfreegeoip.org tcp
US 8.8.8.8:53 api.telegram.org udp
NL 149.154.167.220:443 api.telegram.org tcp
US 8.8.8.8:53 crl.microsoft.com udp
GB 2.19.252.143:80 crl.microsoft.com tcp

Files

memory/2764-9-0x0000000073A41000-0x0000000073A42000-memory.dmp

memory/2764-12-0x0000000073A40000-0x0000000073FEB000-memory.dmp

memory/2764-11-0x0000000073A40000-0x0000000073FEB000-memory.dmp

memory/2764-10-0x0000000073A40000-0x0000000073FEB000-memory.dmp

memory/2764-13-0x0000000073A40000-0x0000000073FEB000-memory.dmp

C:\Users\Admin\AppData\Local\errancies\Tansies.Tem

MD5 5d38b5b5dd9df5889a8cdae91bda8ce0
SHA1 55d4f7428bfc7a1c572e2f65d2877f53dfe9b00c
SHA256 45c83c93a697679fb2f35ba68b3df5393398970f0adbda0f8af697080a661a07
SHA512 9632d65d07e63235746f60133dfeaad9474db92a70d2264300d3f433399b0ca0e647120d3393d07e5f722597ec1e14a4111f9b0819886cb11f646d75c1e6be8d

memory/2764-15-0x0000000073A40000-0x0000000073FEB000-memory.dmp

C:\Users\Admin\AppData\Local\errancies\Tarantulid.Bed

MD5 657f4fbdce2aec00af95560a9bb2f05f
SHA1 05d405cdf1e9b5617ff83d7833d7eb4f011a017b
SHA256 dc6ea094e7cd8bb7306cb687eb37b1e8c711ea58c626628cd3c70dc329bdde6d
SHA512 9f77c539e9e76a3b9f3b77f5e7a771b23881daefd267cce693e77d40b0cb9a0cfb0371c61d9e5395af20d5395c5b0cc886828099ea136f35b87ef9f6ba638b38

memory/2764-17-0x0000000073A40000-0x0000000073FEB000-memory.dmp

memory/2764-18-0x0000000006530000-0x0000000007B93000-memory.dmp

memory/2764-19-0x0000000073A40000-0x0000000073FEB000-memory.dmp

memory/2676-41-0x0000000000530000-0x0000000001592000-memory.dmp

memory/2676-42-0x0000000000530000-0x0000000001592000-memory.dmp

memory/2676-43-0x0000000000530000-0x0000000000572000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-29 11:14

Reported

2024-08-29 11:17

Platform

win10v2004-20240802-en

Max time kernel

139s

Max time network

107s

Command Line

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

Signatures

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\legionrernes.Bac C:\Users\Admin\AppData\Local\Temp\Nettably.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files (x86)\Common Files\underskridelser.ini C:\Users\Admin\AppData\Local\Temp\Nettably.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File opened for modification C:\Windows\Fonts\battable.ini C:\Users\Admin\AppData\Local\Temp\Nettably.exe N/A

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:\Users\Admin\AppData\Local\Temp\Nettably.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe N/A

Processes

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

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

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe

"powershell.exe" -windowstyle hidden "$Kludgy=Get-Content 'C:\Users\Admin\AppData\Local\errancies\Tansies.Tem';$Crushes53=$Kludgy.SubString(52844,3);.$Crushes53($Kludgy)

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2160 -ip 2160

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2160 -s 2692

Network

Country Destination Domain Proto
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 24.139.73.23.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.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 150.171.28.10:443 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

Files

memory/2160-7-0x000000007504E000-0x000000007504F000-memory.dmp

memory/2160-8-0x0000000002E20000-0x0000000002E56000-memory.dmp

memory/2160-10-0x0000000075040000-0x00000000757F0000-memory.dmp

memory/2160-9-0x00000000054E0000-0x0000000005B08000-memory.dmp

memory/2160-11-0x0000000075040000-0x00000000757F0000-memory.dmp

memory/2160-12-0x0000000005460000-0x0000000005482000-memory.dmp

memory/2160-14-0x0000000005DB0000-0x0000000005E16000-memory.dmp

memory/2160-13-0x0000000005D40000-0x0000000005DA6000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_sxf2dnkb.mub.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/2160-24-0x0000000005E20000-0x0000000006174000-memory.dmp

memory/2160-25-0x0000000006400000-0x000000000641E000-memory.dmp

memory/2160-26-0x0000000006450000-0x000000000649C000-memory.dmp

memory/2160-28-0x0000000006940000-0x000000000695A000-memory.dmp

memory/2160-29-0x0000000006980000-0x00000000069A2000-memory.dmp

memory/2160-27-0x00000000075F0000-0x0000000007686000-memory.dmp

memory/2160-30-0x0000000007C40000-0x00000000081E4000-memory.dmp

C:\Users\Admin\AppData\Local\errancies\Tansies.Tem

MD5 5d38b5b5dd9df5889a8cdae91bda8ce0
SHA1 55d4f7428bfc7a1c572e2f65d2877f53dfe9b00c
SHA256 45c83c93a697679fb2f35ba68b3df5393398970f0adbda0f8af697080a661a07
SHA512 9632d65d07e63235746f60133dfeaad9474db92a70d2264300d3f433399b0ca0e647120d3393d07e5f722597ec1e14a4111f9b0819886cb11f646d75c1e6be8d

memory/2160-32-0x0000000008870000-0x0000000008EEA000-memory.dmp

memory/2160-33-0x0000000075040000-0x00000000757F0000-memory.dmp