Malware Analysis Report

2024-11-15 06:29

Sample ID 220301-wtql9scfek
Target b9f34d06a915b9a5d091acf7901dcf484e3894e73b72f621d2c484566dd818ac.bin
SHA256 b9f34d06a915b9a5d091acf7901dcf484e3894e73b72f621d2c484566dd818ac
Tags
44caliber spyware 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

b9f34d06a915b9a5d091acf7901dcf484e3894e73b72f621d2c484566dd818ac

Threat Level: Known bad

The file b9f34d06a915b9a5d091acf7901dcf484e3894e73b72f621d2c484566dd818ac.bin was found to be: Known bad.

Malicious Activity Summary

44caliber spyware stealer

Suspicious use of NtCreateProcessExOtherParentProcess

44Caliber

44caliber family

Reads user/profile data of web browsers

Accesses cryptocurrency files/wallets, possible credential harvesting

Looks up external IP address via web service

Program crash

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Checks processor information in registry

Enumerates system info in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-03-03 17:38

Signatures

44caliber family

44caliber

Analysis: behavioral1

Detonation Overview

Submitted

2022-03-01 18:13

Reported

2022-03-01 18:16

Platform

win7-20220223-en

Max time kernel

4294182s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b9f34d06a915b9a5d091acf7901dcf484e3894e73b72f621d2c484566dd818ac.exe"

Signatures

44Caliber

stealer 44caliber

Reads user/profile data of web browsers

spyware stealer

Accesses cryptocurrency files/wallets, possible credential harvesting

spyware

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Windows\system32\WerFault.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b9f34d06a915b9a5d091acf7901dcf484e3894e73b72f621d2c484566dd818ac.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\WerFault.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b9f34d06a915b9a5d091acf7901dcf484e3894e73b72f621d2c484566dd818ac.exe

"C:\Users\Admin\AppData\Local\Temp\b9f34d06a915b9a5d091acf7901dcf484e3894e73b72f621d2c484566dd818ac.exe"

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 1684 -s 812

Network

N/A

Files

memory/1684-54-0x000007FEF5D93000-0x000007FEF5D94000-memory.dmp

memory/1684-55-0x0000000000A70000-0x0000000000AE4000-memory.dmp

memory/664-56-0x000007FEFC321000-0x000007FEFC323000-memory.dmp

memory/1684-57-0x000000001A7F0000-0x000000001A7F2000-memory.dmp

memory/664-58-0x0000000000260000-0x0000000000261000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-03-01 18:13

Reported

2022-03-01 18:16

Platform

win10v2004-en-20220113

Max time kernel

135s

Max time network

144s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b9f34d06a915b9a5d091acf7901dcf484e3894e73b72f621d2c484566dd818ac.exe"

Signatures

44Caliber

stealer 44caliber

Suspicious use of NtCreateProcessExOtherParentProcess

Description Indicator Process Target
PID 1956 created 4568 N/A C:\Windows\system32\WerFault.exe C:\Users\Admin\AppData\Local\Temp\b9f34d06a915b9a5d091acf7901dcf484e3894e73b72f621d2c484566dd818ac.exe

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:\Windows\system32\WerFault.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz C:\Windows\system32\WerFault.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Windows\system32\WerFault.exe N/A

Enumerates system info in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS C:\Windows\system32\WerFault.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU C:\Windows\system32\WerFault.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b9f34d06a915b9a5d091acf7901dcf484e3894e73b72f621d2c484566dd818ac.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b9f34d06a915b9a5d091acf7901dcf484e3894e73b72f621d2c484566dd818ac.exe

"C:\Users\Admin\AppData\Local\Temp\b9f34d06a915b9a5d091acf7901dcf484e3894e73b72f621d2c484566dd818ac.exe"

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -pss -s 412 -p 4568 -ip 4568

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 4568 -s 1456

Network

Country Destination Domain Proto
US 8.8.8.8:53 freegeoip.app udp
US 188.114.96.0:443 freegeoip.app tcp

Files

memory/4568-130-0x00000000006B0000-0x0000000000724000-memory.dmp

memory/4568-131-0x00007FFD3AB93000-0x00007FFD3AB95000-memory.dmp

memory/4568-132-0x000000001C830000-0x000000001C832000-memory.dmp