Malware Analysis Report

2024-11-15 06:29

Sample ID 220301-wtn4facfej
Target b05617170e474f6689b3c8bbf653e48b3b335d9924140f891a44327fe10cec8b.bin
SHA256 b05617170e474f6689b3c8bbf653e48b3b335d9924140f891a44327fe10cec8b
Tags
44caliber spyware 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

b05617170e474f6689b3c8bbf653e48b3b335d9924140f891a44327fe10cec8b

Threat Level: Known bad

The file b05617170e474f6689b3c8bbf653e48b3b335d9924140f891a44327fe10cec8b.bin was found to be: Known bad.

Malicious Activity Summary

44caliber spyware stealer

44caliber family

44Caliber

Reads user/profile data of web browsers

Accesses cryptocurrency files/wallets, possible credential harvesting

Looks up external IP address via web service

Suspicious use of AdjustPrivilegeToken

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-03-03 17:38

Signatures

44caliber family

44caliber

Analysis: behavioral2

Detonation Overview

Submitted

2022-03-01 18:12

Reported

2022-03-01 18:17

Platform

win10v2004-en-20220112

Max time kernel

91s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b05617170e474f6689b3c8bbf653e48b3b335d9924140f891a44327fe10cec8b.exe"

Signatures

44Caliber

stealer 44caliber

Reads user/profile data of web browsers

spyware stealer

Accesses cryptocurrency files/wallets, possible credential harvesting

spyware

Looks up external IP address via web service

Description Indicator Process Target
N/A freegeoip.app N/A N/A
N/A freegeoip.app N/A N/A

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\b05617170e474f6689b3c8bbf653e48b3b335d9924140f891a44327fe10cec8b.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier C:\Users\Admin\AppData\Local\Temp\b05617170e474f6689b3c8bbf653e48b3b335d9924140f891a44327fe10cec8b.exe N/A
Key opened \Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Windows\system32\MusNotifyIcon.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz C:\Windows\system32\MusNotifyIcon.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b05617170e474f6689b3c8bbf653e48b3b335d9924140f891a44327fe10cec8b.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b05617170e474f6689b3c8bbf653e48b3b335d9924140f891a44327fe10cec8b.exe

"C:\Users\Admin\AppData\Local\Temp\b05617170e474f6689b3c8bbf653e48b3b335d9924140f891a44327fe10cec8b.exe"

C:\Windows\system32\MusNotifyIcon.exe

%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 0

Network

Country Destination Domain Proto
US 8.8.8.8:53 freegeoip.app udp
US 188.114.97.0:443 freegeoip.app tcp
US 8.8.8.8:53 geo.prod.do.dsp.mp.microsoft.com udp
IE 20.191.46.211:443 geo.prod.do.dsp.mp.microsoft.com tcp
US 8.8.8.8:53 kv801.prod.do.dsp.mp.microsoft.com udp
NL 184.29.205.60:443 kv801.prod.do.dsp.mp.microsoft.com tcp
US 8.8.8.8:53 cp801.prod.do.dsp.mp.microsoft.com udp
NL 184.29.205.60:443 cp801.prod.do.dsp.mp.microsoft.com tcp
NL 184.29.205.60:443 cp801.prod.do.dsp.mp.microsoft.com tcp

Files

memory/2664-130-0x0000000000610000-0x000000000065A000-memory.dmp

memory/2664-131-0x00007FFE06DE3000-0x00007FFE06DE5000-memory.dmp

memory/2664-132-0x000000001C7E0000-0x000000001C7E2000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2022-03-01 18:12

Reported

2022-03-01 18:16

Platform

win7-20220223-en

Max time kernel

4294181s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b05617170e474f6689b3c8bbf653e48b3b335d9924140f891a44327fe10cec8b.exe"

Signatures

44Caliber

stealer 44caliber

Reads user/profile data of web browsers

spyware stealer

Accesses cryptocurrency files/wallets, possible credential harvesting

spyware

Looks up external IP address via web service

Description Indicator Process Target
N/A freegeoip.app N/A N/A
N/A freegeoip.app N/A N/A

Checks processor information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier C:\Users\Admin\AppData\Local\Temp\b05617170e474f6689b3c8bbf653e48b3b335d9924140f891a44327fe10cec8b.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\b05617170e474f6689b3c8bbf653e48b3b335d9924140f891a44327fe10cec8b.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b05617170e474f6689b3c8bbf653e48b3b335d9924140f891a44327fe10cec8b.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b05617170e474f6689b3c8bbf653e48b3b335d9924140f891a44327fe10cec8b.exe

"C:\Users\Admin\AppData\Local\Temp\b05617170e474f6689b3c8bbf653e48b3b335d9924140f891a44327fe10cec8b.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 freegeoip.app udp
US 172.67.188.154:443 freegeoip.app tcp

Files

memory/2036-54-0x00000000001A0000-0x00000000001EA000-memory.dmp

memory/2036-55-0x000007FEF5263000-0x000007FEF5264000-memory.dmp

memory/2036-56-0x000000001B100000-0x000000001B102000-memory.dmp