Malware Analysis Report

2025-04-14 05:15

Sample ID 210216-rbcgasszme
Target 81f985a5_extracted
SHA256 e11b04b3dab5c74ad2e43703ff1d2ce8d512a6e48c88723c44754be953bee580
Tags
masslogger ransomware 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

e11b04b3dab5c74ad2e43703ff1d2ce8d512a6e48c88723c44754be953bee580

Threat Level: Known bad

The file 81f985a5_extracted was found to be: Known bad.

Malicious Activity Summary

masslogger ransomware spyware stealer

MassLogger

MassLogger log file

Checks computer location settings

Looks up external IP address via web service

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2021-02-16 17:41

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2021-02-16 17:41

Reported

2021-02-16 17:46

Platform

win7v20201028

Max time kernel

27s

Max time network

125s

Command Line

"C:\Users\Admin\AppData\Local\Temp\81f985a5_extracted.exe"

Signatures

MassLogger

stealer spyware masslogger

MassLogger log file

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\81f985a5_extracted.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A api.ipify.org N/A N/A

Suspicious behavior: AddClipboardFormatListener

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\81f985a5_extracted.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\81f985a5_extracted.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\81f985a5_extracted.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\81f985a5_extracted.exe

"C:\Users\Admin\AppData\Local\Temp\81f985a5_extracted.exe"

Network

Country Destination Domain Proto
N/A 8.8.8.8:53 api.ipify.org udp
N/A 54.221.253.252:80 api.ipify.org tcp

Files

memory/336-2-0x0000000073F40000-0x000000007462E000-memory.dmp

memory/336-3-0x0000000000DE0000-0x0000000000DE1000-memory.dmp

memory/336-5-0x0000000004E70000-0x0000000004E71000-memory.dmp

memory/336-6-0x00000000002F0000-0x00000000002F1000-memory.dmp

memory/336-7-0x0000000000B00000-0x0000000000B3E000-memory.dmp

memory/336-8-0x0000000004E75000-0x0000000004E86000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2021-02-16 17:41

Reported

2021-02-16 17:46

Platform

win10v20201028

Max time kernel

21s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\81f985a5_extracted.exe"

Signatures

MassLogger

stealer spyware masslogger

MassLogger log file

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\81f985a5_extracted.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A api.ipify.org N/A N/A

Suspicious behavior: AddClipboardFormatListener

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\81f985a5_extracted.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\81f985a5_extracted.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\81f985a5_extracted.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\81f985a5_extracted.exe

"C:\Users\Admin\AppData\Local\Temp\81f985a5_extracted.exe"

Network

Country Destination Domain Proto
N/A 8.8.8.8:53 api.ipify.org udp
N/A 50.19.252.36:80 api.ipify.org tcp

Files

memory/3116-2-0x0000000073840000-0x0000000073F2E000-memory.dmp

memory/3116-3-0x0000000000CC0000-0x0000000000CC1000-memory.dmp

memory/3116-5-0x0000000005A40000-0x0000000005A41000-memory.dmp

memory/3116-6-0x00000000055F0000-0x00000000055F1000-memory.dmp

memory/3116-7-0x0000000005690000-0x00000000056CE000-memory.dmp

memory/3116-9-0x00000000054C0000-0x00000000054C1000-memory.dmp

memory/3116-8-0x0000000005530000-0x0000000005531000-memory.dmp

memory/3116-10-0x0000000005850000-0x0000000005851000-memory.dmp

memory/3116-11-0x0000000005960000-0x0000000005961000-memory.dmp

memory/3116-12-0x0000000006E40000-0x0000000006E41000-memory.dmp

memory/3116-13-0x0000000005533000-0x0000000005535000-memory.dmp