Malware Analysis Report

2024-11-30 18:45

Sample ID 220521-b5b8ssgahj
Target c4321f8a7c6225614746430b2f64998ef2bb9f4dcc94d8c5226c70c35eeb9039
SHA256 c4321f8a7c6225614746430b2f64998ef2bb9f4dcc94d8c5226c70c35eeb9039
Tags
cheetahkeylogger agilenet collection keylogger stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

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

c4321f8a7c6225614746430b2f64998ef2bb9f4dcc94d8c5226c70c35eeb9039

Threat Level: Known bad

The file c4321f8a7c6225614746430b2f64998ef2bb9f4dcc94d8c5226c70c35eeb9039 was found to be: Known bad.

Malicious Activity Summary

cheetahkeylogger agilenet collection keylogger stealer

Cheetah Keylogger Payload

Cheetah Keylogger

Obfuscated with Agile.Net obfuscator

Looks up external IP address via web service

Accesses Microsoft Outlook profiles

Suspicious use of SetThreadContext

outlook_office_path

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

outlook_win_path

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-05-21 01:43

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-05-21 01:43

Reported

2022-05-21 02:35

Platform

win7-20220414-en

Max time kernel

142s

Max time network

165s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Payment Notification.exe"

Signatures

Cheetah Keylogger

stealer keylogger cheetahkeylogger

Cheetah Keylogger Payload

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

Obfuscated with Agile.Net obfuscator

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

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A ifconfig.me N/A N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1392 set thread context of 880 N/A C:\Users\Admin\AppData\Local\Temp\Payment Notification.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Payment Notification.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1392 wrote to memory of 880 N/A C:\Users\Admin\AppData\Local\Temp\Payment Notification.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 1392 wrote to memory of 880 N/A C:\Users\Admin\AppData\Local\Temp\Payment Notification.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 1392 wrote to memory of 880 N/A C:\Users\Admin\AppData\Local\Temp\Payment Notification.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 1392 wrote to memory of 880 N/A C:\Users\Admin\AppData\Local\Temp\Payment Notification.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 1392 wrote to memory of 880 N/A C:\Users\Admin\AppData\Local\Temp\Payment Notification.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 1392 wrote to memory of 880 N/A C:\Users\Admin\AppData\Local\Temp\Payment Notification.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 1392 wrote to memory of 880 N/A C:\Users\Admin\AppData\Local\Temp\Payment Notification.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 1392 wrote to memory of 880 N/A C:\Users\Admin\AppData\Local\Temp\Payment Notification.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 1392 wrote to memory of 880 N/A C:\Users\Admin\AppData\Local\Temp\Payment Notification.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 1392 wrote to memory of 880 N/A C:\Users\Admin\AppData\Local\Temp\Payment Notification.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 1392 wrote to memory of 880 N/A C:\Users\Admin\AppData\Local\Temp\Payment Notification.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\Payment Notification.exe

"C:\Users\Admin\AppData\Local\Temp\Payment Notification.exe"

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 ifconfig.me udp
US 34.117.59.81:80 ifconfig.me tcp
US 8.8.8.8:53 mail.mmpsecurity.co.za udp
ZA 102.219.84.7:587 mail.mmpsecurity.co.za tcp

Files

memory/1392-54-0x0000000000070000-0x00000000000D6000-memory.dmp

memory/1392-55-0x0000000000530000-0x0000000000546000-memory.dmp

memory/1392-56-0x0000000075951000-0x0000000075953000-memory.dmp

memory/1392-57-0x0000000001D10000-0x0000000001D18000-memory.dmp

memory/1392-58-0x0000000001DB0000-0x0000000001DB8000-memory.dmp

memory/1392-59-0x0000000001DC0000-0x0000000001DCA000-memory.dmp

memory/880-60-0x0000000000400000-0x0000000000422000-memory.dmp

memory/880-61-0x0000000000400000-0x0000000000422000-memory.dmp

memory/880-63-0x0000000000400000-0x0000000000422000-memory.dmp

memory/880-64-0x0000000000400000-0x0000000000422000-memory.dmp

memory/880-65-0x000000000041FE3E-mapping.dmp

memory/880-67-0x0000000000400000-0x0000000000422000-memory.dmp

memory/880-69-0x0000000000400000-0x0000000000422000-memory.dmp

memory/880-70-0x0000000000200000-0x0000000000236000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-05-21 01:43

Reported

2022-05-21 02:35

Platform

win10v2004-20220414-en

Max time kernel

123s

Max time network

167s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Payment Notification.exe"

Signatures

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A ifconfig.me N/A N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4052 set thread context of 3908 N/A C:\Users\Admin\AppData\Local\Temp\Payment Notification.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Payment Notification.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\Payment Notification.exe

"C:\Users\Admin\AppData\Local\Temp\Payment Notification.exe"

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
NL 104.110.191.133:80 tcp
NL 104.110.191.133:80 tcp
US 104.208.16.90:443 tcp
US 93.184.221.240:80 tcp
US 93.184.221.240:80 tcp
US 93.184.221.240:80 tcp
US 8.8.8.8:53 14.110.152.52.in-addr.arpa udp
US 8.8.8.8:53 ifconfig.me udp
US 34.117.59.81:80 ifconfig.me tcp
US 8.8.8.8:53 mail.mmpsecurity.co.za udp
ZA 102.219.84.7:587 mail.mmpsecurity.co.za tcp

Files

memory/4052-130-0x0000000000C90000-0x0000000000CF6000-memory.dmp

memory/4052-131-0x0000000006320000-0x00000000068C4000-memory.dmp

memory/4052-132-0x0000000005E70000-0x0000000005F02000-memory.dmp

memory/4052-133-0x0000000006280000-0x00000000062C4000-memory.dmp

memory/4052-134-0x0000000006900000-0x0000000006922000-memory.dmp

memory/3908-135-0x0000000000000000-mapping.dmp

memory/3908-136-0x0000000000400000-0x0000000000422000-memory.dmp

memory/3908-137-0x0000000005D60000-0x0000000005DFC000-memory.dmp

memory/3908-138-0x00000000067E0000-0x00000000069A2000-memory.dmp

memory/3908-139-0x0000000006C20000-0x0000000006C86000-memory.dmp

memory/3908-140-0x0000000007140000-0x000000000714A000-memory.dmp