Malware Analysis Report

2025-05-05 21:47

Sample ID 240829-ckskqaycmc
Target RCRFQ-FEMS(HKL)2024024.PDF.scr
SHA256 6cb3801298e866cd728d92c70e20130f3149b7b7e9ab892c77f50503647380d1
Tags
vipkeylogger collection credential_access discovery keylogger stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

6cb3801298e866cd728d92c70e20130f3149b7b7e9ab892c77f50503647380d1

Threat Level: Known bad

The file RCRFQ-FEMS(HKL)2024024.PDF.scr was found to be: Known bad.

Malicious Activity Summary

vipkeylogger collection credential_access discovery keylogger stealer

VIPKeylogger

Credentials from Password Stores: Credentials from Web Browsers

Accesses Microsoft Outlook profiles

Looks up external IP address via web service

Suspicious use of SetThreadContext

System Location Discovery: System Language Discovery

Unsigned PE

Browser Information Discovery

outlook_office_path

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

outlook_win_path

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-29 02:08

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-29 02:08

Reported

2024-08-29 02:13

Platform

win10v2004-20240802-en

Max time kernel

135s

Max time network

195s

Command Line

"C:\Users\Admin\AppData\Local\Temp\RCRFQ-FEMS(HKL)2024024.PDF.scr" /S

Signatures

VIPKeylogger

stealer keylogger vipkeylogger

Credentials from Password Stores: Credentials from Web Browsers

credential_access stealer

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\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-1-5-21-656926755-4116854191-210765258-1000\Software\Microsoft\Office\16.0\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 4496 set thread context of 960 N/A C:\Users\Admin\AppData\Local\Temp\RCRFQ-FEMS(HKL)2024024.PDF.scr 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:\Users\Admin\AppData\Local\Temp\RCRFQ-FEMS(HKL)2024024.PDF.scr N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 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\RCRFQ-FEMS(HKL)2024024.PDF.scr N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\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-1-5-21-656926755-4116854191-210765258-1000\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\RCRFQ-FEMS(HKL)2024024.PDF.scr

"C:\Users\Admin\AppData\Local\Temp\RCRFQ-FEMS(HKL)2024024.PDF.scr" /S

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.28.10:443 g.bing.com tcp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.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 reallyfreegeoip.org udp
US 104.21.67.152:443 reallyfreegeoip.org tcp
US 8.8.8.8:53 0.130.122.193.in-addr.arpa udp
US 8.8.8.8:53 152.67.21.104.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 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.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 8.8.8.8:53 10.27.171.150.in-addr.arpa udp

Files

memory/4496-0-0x00000000743EE000-0x00000000743EF000-memory.dmp

memory/4496-1-0x0000000000A50000-0x0000000000B02000-memory.dmp

memory/4496-2-0x0000000005A10000-0x0000000005FB4000-memory.dmp

memory/4496-3-0x0000000005500000-0x0000000005592000-memory.dmp

memory/4496-4-0x00000000743E0000-0x0000000074B90000-memory.dmp

memory/4496-5-0x0000000005720000-0x000000000572A000-memory.dmp

memory/4496-6-0x0000000008240000-0x0000000008258000-memory.dmp

memory/4496-7-0x00000000743EE000-0x00000000743EF000-memory.dmp

memory/4496-8-0x00000000743E0000-0x0000000074B90000-memory.dmp

memory/4496-9-0x0000000006750000-0x00000000067DC000-memory.dmp

memory/4496-10-0x000000000A7C0000-0x000000000A85C000-memory.dmp

memory/960-11-0x0000000000400000-0x0000000000448000-memory.dmp

memory/960-13-0x00000000743E0000-0x0000000074B90000-memory.dmp

memory/4496-14-0x00000000743E0000-0x0000000074B90000-memory.dmp

memory/960-15-0x00000000743E0000-0x0000000074B90000-memory.dmp

memory/960-16-0x00000000743E0000-0x0000000074B90000-memory.dmp

memory/960-17-0x00000000743E0000-0x0000000074B90000-memory.dmp

memory/960-18-0x0000000006490000-0x0000000006652000-memory.dmp

memory/960-19-0x0000000006320000-0x0000000006370000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-29 02:08

Reported

2024-08-29 02:13

Platform

win7-20240708-en

Max time kernel

121s

Max time network

165s

Command Line

"C:\Users\Admin\AppData\Local\Temp\RCRFQ-FEMS(HKL)2024024.PDF.scr" /S

Signatures

VIPKeylogger

stealer keylogger vipkeylogger

Credentials from Password Stores: Credentials from Web Browsers

credential_access stealer

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000\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-1-5-21-2958949473-3205530200-1453100116-1000\Software\Microsoft\Office\16.0\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 2732 set thread context of 2700 N/A C:\Users\Admin\AppData\Local\Temp\RCRFQ-FEMS(HKL)2024024.PDF.scr 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:\Users\Admin\AppData\Local\Temp\RCRFQ-FEMS(HKL)2024024.PDF.scr N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 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\RCRFQ-FEMS(HKL)2024024.PDF.scr 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 2732 wrote to memory of 2700 N/A C:\Users\Admin\AppData\Local\Temp\RCRFQ-FEMS(HKL)2024024.PDF.scr C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2732 wrote to memory of 2700 N/A C:\Users\Admin\AppData\Local\Temp\RCRFQ-FEMS(HKL)2024024.PDF.scr C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2732 wrote to memory of 2700 N/A C:\Users\Admin\AppData\Local\Temp\RCRFQ-FEMS(HKL)2024024.PDF.scr C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2732 wrote to memory of 2700 N/A C:\Users\Admin\AppData\Local\Temp\RCRFQ-FEMS(HKL)2024024.PDF.scr C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2732 wrote to memory of 2700 N/A C:\Users\Admin\AppData\Local\Temp\RCRFQ-FEMS(HKL)2024024.PDF.scr C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2732 wrote to memory of 2700 N/A C:\Users\Admin\AppData\Local\Temp\RCRFQ-FEMS(HKL)2024024.PDF.scr C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2732 wrote to memory of 2700 N/A C:\Users\Admin\AppData\Local\Temp\RCRFQ-FEMS(HKL)2024024.PDF.scr C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2732 wrote to memory of 2700 N/A C:\Users\Admin\AppData\Local\Temp\RCRFQ-FEMS(HKL)2024024.PDF.scr C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2732 wrote to memory of 2700 N/A C:\Users\Admin\AppData\Local\Temp\RCRFQ-FEMS(HKL)2024024.PDF.scr C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2732 wrote to memory of 2700 N/A C:\Users\Admin\AppData\Local\Temp\RCRFQ-FEMS(HKL)2024024.PDF.scr C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2732 wrote to memory of 2700 N/A C:\Users\Admin\AppData\Local\Temp\RCRFQ-FEMS(HKL)2024024.PDF.scr C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
PID 2732 wrote to memory of 2700 N/A C:\Users\Admin\AppData\Local\Temp\RCRFQ-FEMS(HKL)2024024.PDF.scr C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2958949473-3205530200-1453100116-1000\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-1-5-21-2958949473-3205530200-1453100116-1000\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\RCRFQ-FEMS(HKL)2024024.PDF.scr

"C:\Users\Admin\AppData\Local\Temp\RCRFQ-FEMS(HKL)2024024.PDF.scr" /S

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 checkip.dyndns.org udp
BR 132.226.247.73:80 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

Files

memory/2732-0-0x000000007496E000-0x000000007496F000-memory.dmp

memory/2732-1-0x0000000000270000-0x0000000000322000-memory.dmp

memory/2732-2-0x0000000074960000-0x000000007504E000-memory.dmp

memory/2732-3-0x0000000000420000-0x0000000000438000-memory.dmp

memory/2732-4-0x000000007496E000-0x000000007496F000-memory.dmp

memory/2732-5-0x0000000074960000-0x000000007504E000-memory.dmp

memory/2732-6-0x00000000050A0000-0x000000000512C000-memory.dmp

memory/2700-7-0x0000000000400000-0x0000000000448000-memory.dmp

memory/2700-16-0x0000000000400000-0x0000000000448000-memory.dmp

memory/2700-20-0x0000000000400000-0x0000000000448000-memory.dmp

memory/2700-18-0x0000000000400000-0x0000000000448000-memory.dmp

memory/2700-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2700-12-0x0000000000400000-0x0000000000448000-memory.dmp

memory/2700-21-0x0000000074960000-0x000000007504E000-memory.dmp

memory/2700-10-0x0000000000400000-0x0000000000448000-memory.dmp

memory/2700-9-0x0000000000400000-0x0000000000448000-memory.dmp

memory/2732-22-0x0000000074960000-0x000000007504E000-memory.dmp

memory/2700-23-0x0000000074960000-0x000000007504E000-memory.dmp

memory/2700-24-0x0000000074960000-0x000000007504E000-memory.dmp

memory/2700-25-0x0000000074960000-0x000000007504E000-memory.dmp