Malware Analysis Report

2024-11-30 15:02

Sample ID 241031-rfgd8azfjn
Target cb4635bc37189a8c926cd1542e767eae5b9f5f9dbe7ce25b141dbf6902376ee4
SHA256 cb4635bc37189a8c926cd1542e767eae5b9f5f9dbe7ce25b141dbf6902376ee4
Tags
vipkeylogger collection discovery 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

cb4635bc37189a8c926cd1542e767eae5b9f5f9dbe7ce25b141dbf6902376ee4

Threat Level: Known bad

The file cb4635bc37189a8c926cd1542e767eae5b9f5f9dbe7ce25b141dbf6902376ee4 was found to be: Known bad.

Malicious Activity Summary

vipkeylogger collection discovery keylogger stealer

Vipkeylogger family

VIPKeylogger

Looks up external IP address via web service

Accesses Microsoft Outlook profiles

Suspicious use of SetThreadContext

Unsigned PE

Browser Information Discovery

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

outlook_office_path

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

outlook_win_path

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-31 14:07

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-31 14:07

Reported

2024-10-31 14:12

Platform

win7-20240708-en

Max time kernel

121s

Max time network

136s

Command Line

"C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe"

Signatures

VIPKeylogger

stealer keylogger vipkeylogger

Vipkeylogger family

vipkeylogger

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe N/A

Looks up external IP address via web service

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2984 set thread context of 544 N/A C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe

Browser Information Discovery

discovery

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\regsvcs.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe N/A
N/A N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2984 wrote to memory of 544 N/A C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 2984 wrote to memory of 544 N/A C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 2984 wrote to memory of 544 N/A C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 2984 wrote to memory of 544 N/A C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 2984 wrote to memory of 544 N/A C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 2984 wrote to memory of 544 N/A C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 2984 wrote to memory of 544 N/A C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 2984 wrote to memory of 544 N/A C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 2984 wrote to memory of 544 N/A C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 2984 wrote to memory of 544 N/A C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 2984 wrote to memory of 544 N/A C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 2984 wrote to memory of 544 N/A C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
PID 2984 wrote to memory of 2456 N/A C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe C:\Windows\system32\WerFault.exe
PID 2984 wrote to memory of 2456 N/A C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe C:\Windows\system32\WerFault.exe
PID 2984 wrote to memory of 2456 N/A C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe C:\Windows\system32\WerFault.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe

"C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe"

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

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

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 2984 -s 616

Network

Country Destination Domain Proto
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 104.21.67.152:443 reallyfreegeoip.org tcp
US 8.8.8.8:53 api.telegram.org udp
NL 149.154.167.220:443 api.telegram.org tcp
NL 149.154.167.220:443 api.telegram.org tcp

Files

memory/2984-0-0x000007FEF57E3000-0x000007FEF57E4000-memory.dmp

memory/2984-1-0x0000000001050000-0x0000000001068000-memory.dmp

memory/2984-2-0x0000000000CC0000-0x0000000000D5C000-memory.dmp

memory/2984-3-0x000007FEF57E0000-0x000007FEF61CC000-memory.dmp

memory/544-4-0x0000000000400000-0x0000000000448000-memory.dmp

memory/544-17-0x0000000000400000-0x0000000000448000-memory.dmp

memory/544-15-0x0000000000400000-0x0000000000448000-memory.dmp

memory/544-13-0x0000000000400000-0x0000000000448000-memory.dmp

memory/544-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/544-10-0x0000000000400000-0x0000000000448000-memory.dmp

memory/544-8-0x0000000000400000-0x0000000000448000-memory.dmp

memory/544-6-0x0000000000400000-0x0000000000448000-memory.dmp

memory/544-18-0x000000007454E000-0x000000007454F000-memory.dmp

memory/544-19-0x0000000074540000-0x0000000074C2E000-memory.dmp

memory/2984-20-0x000007FEF57E0000-0x000007FEF61CC000-memory.dmp

memory/544-21-0x000000007454E000-0x000000007454F000-memory.dmp

memory/544-22-0x0000000074540000-0x0000000074C2E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-31 14:07

Reported

2024-10-31 14:12

Platform

win10v2004-20241007-en

Max time kernel

142s

Max time network

143s

Command Line

"C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe"

Signatures

VIPKeylogger

stealer keylogger vipkeylogger

Vipkeylogger family

vipkeylogger

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe N/A

Looks up external IP address via web service

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1184 set thread context of 1396 N/A C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe

Browser Information Discovery

discovery

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1184 wrote to memory of 4132 N/A C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 1184 wrote to memory of 4132 N/A C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 1184 wrote to memory of 4132 N/A C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
PID 1184 wrote to memory of 1396 N/A C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
PID 1184 wrote to memory of 1396 N/A C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
PID 1184 wrote to memory of 1396 N/A C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
PID 1184 wrote to memory of 1396 N/A C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
PID 1184 wrote to memory of 1396 N/A C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
PID 1184 wrote to memory of 1396 N/A C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
PID 1184 wrote to memory of 1396 N/A C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
PID 1184 wrote to memory of 1396 N/A C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
PID 1184 wrote to memory of 2124 N/A C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
PID 1184 wrote to memory of 2124 N/A C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
PID 1184 wrote to memory of 2124 N/A C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe

"C:\Users\Admin\AppData\Local\Temp\31_10_2024_Dönemi_MEVDUAT Ekstre Bilgiler.exe"

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

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

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

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

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 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 71.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 checkip.dyndns.org udp
US 193.122.130.0:80 checkip.dyndns.org tcp
US 8.8.8.8:53 0.130.122.193.in-addr.arpa udp
US 8.8.8.8:53 reallyfreegeoip.org udp
US 104.21.67.152:443 reallyfreegeoip.org tcp
US 8.8.8.8:53 g.bing.com udp
US 150.171.27.10:443 g.bing.com tcp
US 8.8.8.8:53 152.67.21.104.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 api.telegram.org udp
NL 149.154.167.220:443 api.telegram.org tcp
US 8.8.8.8:53 220.167.154.149.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 92.12.20.2.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 150.171.27.10:443 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

Files

memory/1184-0-0x00007FF94BEC3000-0x00007FF94BEC5000-memory.dmp

memory/1184-1-0x0000027617260000-0x0000027617278000-memory.dmp

memory/1184-2-0x0000027617630000-0x00000276176CC000-memory.dmp

memory/1184-3-0x00007FF94BEC0000-0x00007FF94C981000-memory.dmp

memory/1396-4-0x0000000000400000-0x0000000000448000-memory.dmp

memory/1396-5-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

memory/1396-6-0x00000000057D0000-0x0000000005D74000-memory.dmp

memory/1396-7-0x0000000005100000-0x000000000519C000-memory.dmp

memory/1184-8-0x00007FF94BEC0000-0x00007FF94C981000-memory.dmp

memory/1396-9-0x0000000074C90000-0x0000000075440000-memory.dmp

memory/1396-10-0x00000000065D0000-0x0000000006792000-memory.dmp

memory/1396-11-0x0000000006450000-0x00000000064A0000-memory.dmp

memory/1396-12-0x0000000006CD0000-0x00000000071FC000-memory.dmp

memory/1396-13-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

memory/1396-14-0x0000000074C90000-0x0000000075440000-memory.dmp

memory/1396-15-0x00000000067A0000-0x0000000006832000-memory.dmp

memory/1396-16-0x00000000065A0000-0x00000000065AA000-memory.dmp