Malware Analysis Report

2024-11-15 06:29

Sample ID 220301-wtbhcabag9
Target 902683505c95e889efddf689d20757d7dbe7958330f089660f042ff15d63548e.bin
SHA256 902683505c95e889efddf689d20757d7dbe7958330f089660f042ff15d63548e
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

902683505c95e889efddf689d20757d7dbe7958330f089660f042ff15d63548e

Threat Level: Known bad

The file 902683505c95e889efddf689d20757d7dbe7958330f089660f042ff15d63548e.bin was found to be: Known bad.

Malicious Activity Summary

44caliber spyware stealer

44caliber family

44Caliber

Suspicious use of NtCreateProcessExOtherParentProcess

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 WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

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 18:12

Reported

2022-03-01 18:15

Platform

win7-20220223-en

Max time kernel

4294178s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\902683505c95e889efddf689d20757d7dbe7958330f089660f042ff15d63548e.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\902683505c95e889efddf689d20757d7dbe7958330f089660f042ff15d63548e.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\system32\WerFault.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\902683505c95e889efddf689d20757d7dbe7958330f089660f042ff15d63548e.exe

"C:\Users\Admin\AppData\Local\Temp\902683505c95e889efddf689d20757d7dbe7958330f089660f042ff15d63548e.exe"

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 1152 -s 812

Network

N/A

Files

memory/1152-54-0x0000000000AE0000-0x0000000000B32000-memory.dmp

memory/1152-55-0x000007FEF5543000-0x000007FEF5544000-memory.dmp

memory/1116-56-0x000007FEFBCB1000-0x000007FEFBCB3000-memory.dmp

memory/1116-58-0x0000000001C20000-0x0000000001C21000-memory.dmp

memory/1152-57-0x000000001B020000-0x000000001B022000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-03-01 18:12

Reported

2022-03-01 18:15

Platform

win10v2004-en-20220113

Max time kernel

90s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\902683505c95e889efddf689d20757d7dbe7958330f089660f042ff15d63548e.exe"

Signatures

44Caliber

stealer 44caliber

Suspicious use of NtCreateProcessExOtherParentProcess

Description Indicator Process Target
PID 2776 created 1516 N/A C:\Windows\system32\WerFault.exe C:\Users\Admin\AppData\Local\Temp\902683505c95e889efddf689d20757d7dbe7958330f089660f042ff15d63548e.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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Windows\system32\WerFault.exe N/A
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

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\902683505c95e889efddf689d20757d7dbe7958330f089660f042ff15d63548e.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\902683505c95e889efddf689d20757d7dbe7958330f089660f042ff15d63548e.exe

"C:\Users\Admin\AppData\Local\Temp\902683505c95e889efddf689d20757d7dbe7958330f089660f042ff15d63548e.exe"

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -pss -s 188 -p 1516 -ip 1516

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 1516 -s 1544

Network

Country Destination Domain Proto
US 8.8.8.8:53 freegeoip.app udp
US 172.67.188.154:443 freegeoip.app tcp
US 52.109.12.18:443 tcp

Files

memory/1516-130-0x0000000000EB0000-0x0000000000F02000-memory.dmp

memory/1516-131-0x00007FFC2C5F3000-0x00007FFC2C5F5000-memory.dmp

memory/1516-132-0x000000001C750000-0x000000001C752000-memory.dmp