Malware Analysis Report

2024-11-30 18:46

Sample ID 220521-c72f5saccj
Target 771750971a05a00827d90831fd751117160cfb014f8171c9999b13631439deff
SHA256 771750971a05a00827d90831fd751117160cfb014f8171c9999b13631439deff
Tags
collection cheetahkeylogger agilenet keylogger stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

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

771750971a05a00827d90831fd751117160cfb014f8171c9999b13631439deff

Threat Level: Known bad

The file 771750971a05a00827d90831fd751117160cfb014f8171c9999b13631439deff was found to be: Known bad.

Malicious Activity Summary

collection cheetahkeylogger agilenet keylogger stealer

Cheetah Keylogger Payload

Cheetah Keylogger

Obfuscated with Agile.Net obfuscator

Accesses Microsoft Outlook profiles

Looks up external IP address via web service

Suspicious use of SetThreadContext

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

outlook_office_path

outlook_win_path

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-05-21 02:43

Signatures

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2022-05-21 02:43

Reported

2022-05-21 04:09

Platform

win10v2004-20220414-en

Max time kernel

103s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"

Signatures

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\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-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-1809750270-3141839489-3074374771-1000\Software\Microsoft\Office\15.0\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 2848 set thread context of 2576 N/A C:\Users\Admin\AppData\Local\Temp\Purchase Order.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\Purchase Order.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-1-5-21-1809750270-3141839489-3074374771-1000\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-1-5-21-1809750270-3141839489-3074374771-1000\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\Purchase Order.exe

"C:\Users\Admin\AppData\Local\Temp\Purchase Order.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 93.184.220.29:80 tcp
NL 88.221.144.179:80 tcp
US 20.42.73.25:443 tcp
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.medis.co.za udp
ZA 196.15.191.3:587 mail.medis.co.za tcp
NL 104.97.14.81:80 tcp
NL 104.97.14.81:80 tcp
NL 104.97.14.81:80 tcp
FR 2.18.109.224:443 tcp
US 104.18.24.243:80 tcp

Files

memory/2848-130-0x0000000000180000-0x00000000001EA000-memory.dmp

memory/2848-131-0x0000000005820000-0x0000000005DC4000-memory.dmp

memory/2848-132-0x0000000005370000-0x0000000005402000-memory.dmp

memory/2848-133-0x0000000005DD0000-0x0000000005E14000-memory.dmp

memory/2848-134-0x00000000054D0000-0x00000000054F2000-memory.dmp

memory/2576-135-0x0000000000000000-mapping.dmp

memory/2576-136-0x0000000000400000-0x0000000000422000-memory.dmp

memory/2576-137-0x00000000059E0000-0x0000000005A7C000-memory.dmp

memory/2576-138-0x0000000006460000-0x0000000006622000-memory.dmp

memory/2576-139-0x0000000006AE0000-0x0000000006B46000-memory.dmp

memory/2576-140-0x0000000006AD0000-0x0000000006ADA000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2022-05-21 02:43

Reported

2022-05-21 04:09

Platform

win7-20220414-en

Max time kernel

116s

Max time network

106s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Purchase Order.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-1-5-21-2277218442-1199762539-2004043321-1000\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-1-5-21-2277218442-1199762539-2004043321-1000\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-1-5-21-2277218442-1199762539-2004043321-1000\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 1460 set thread context of 1992 N/A C:\Users\Admin\AppData\Local\Temp\Purchase Order.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\Purchase Order.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 1460 wrote to memory of 1992 N/A C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 1460 wrote to memory of 1992 N/A C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 1460 wrote to memory of 1992 N/A C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 1460 wrote to memory of 1992 N/A C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 1460 wrote to memory of 1992 N/A C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 1460 wrote to memory of 1992 N/A C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 1460 wrote to memory of 1992 N/A C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 1460 wrote to memory of 1992 N/A C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 1460 wrote to memory of 1992 N/A C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 1460 wrote to memory of 1992 N/A C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
PID 1460 wrote to memory of 1992 N/A C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\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-1-5-21-2277218442-1199762539-2004043321-1000\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\Purchase Order.exe

"C:\Users\Admin\AppData\Local\Temp\Purchase Order.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.medis.co.za udp
ZA 196.15.191.3:587 mail.medis.co.za tcp

Files

memory/1460-54-0x00000000012C0000-0x000000000132A000-memory.dmp

memory/1460-55-0x00000000001E0000-0x00000000001F6000-memory.dmp

memory/1460-56-0x00000000763E1000-0x00000000763E3000-memory.dmp

memory/1460-57-0x0000000000410000-0x0000000000418000-memory.dmp

memory/1460-58-0x00000000004E0000-0x00000000004E8000-memory.dmp

memory/1460-59-0x00000000004F0000-0x00000000004FA000-memory.dmp

memory/1992-60-0x0000000000400000-0x0000000000422000-memory.dmp

memory/1992-61-0x0000000000400000-0x0000000000422000-memory.dmp

memory/1992-63-0x0000000000400000-0x0000000000422000-memory.dmp

memory/1992-64-0x0000000000400000-0x0000000000422000-memory.dmp

memory/1992-65-0x000000000041FEBE-mapping.dmp

memory/1992-67-0x0000000000400000-0x0000000000422000-memory.dmp

memory/1992-69-0x0000000000400000-0x0000000000422000-memory.dmp

memory/1992-70-0x00000000003C0000-0x00000000003F6000-memory.dmp