Malware Analysis Report

2024-10-19 08:47

Sample ID 220521-pgnhtaaebq
Target affd41df487700a59f27d10e8a52a4fe7f10907f7bbf3f11d1e8b26e8435384d
SHA256 affd41df487700a59f27d10e8a52a4fe7f10907f7bbf3f11d1e8b26e8435384d
Tags
masslogger ransomware rezer0 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

affd41df487700a59f27d10e8a52a4fe7f10907f7bbf3f11d1e8b26e8435384d

Threat Level: Known bad

The file affd41df487700a59f27d10e8a52a4fe7f10907f7bbf3f11d1e8b26e8435384d was found to be: Known bad.

Malicious Activity Summary

masslogger ransomware rezer0 spyware stealer

MassLogger

MassLogger Main Payload

MassLogger log file

ReZer0 packer

Checks computer location settings

Looks up external IP address via web service

Suspicious use of SetThreadContext

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-05-21 12:18

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-05-21 12:18

Reported

2022-05-21 12:32

Platform

win7-20220414-en

Max time kernel

58s

Max time network

167s

Command Line

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

Signatures

MassLogger

stealer spyware masslogger

MassLogger Main Payload

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MassLogger log file

Description Indicator Process Target
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ReZer0 packer

rezer0
Description Indicator Process Target
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Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\SKBMT__B.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 use of SetThreadContext

Description Indicator Process Target
PID 964 set thread context of 660 N/A C:\Users\Admin\AppData\Local\Temp\SKBMT__B.exe C:\Users\Admin\AppData\Local\Temp\SKBMT__B.exe

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

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

Processes

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

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

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 api.ipify.org udp
US 52.20.78.240:80 api.ipify.org tcp

Files

memory/964-54-0x00000000009A0000-0x0000000000A70000-memory.dmp

memory/964-55-0x00000000751C1000-0x00000000751C3000-memory.dmp

memory/964-56-0x00000000003D0000-0x00000000003D8000-memory.dmp

memory/964-57-0x0000000005D60000-0x0000000005E18000-memory.dmp

memory/660-58-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/660-59-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/660-61-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/660-62-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/660-63-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/660-64-0x00000000004ABEAE-mapping.dmp

memory/660-66-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/660-68-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/660-70-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/660-72-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/660-74-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/660-76-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/660-78-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/660-80-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/660-82-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/660-84-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/660-86-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/660-88-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/660-90-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/660-92-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/660-94-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/660-96-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/660-98-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/660-100-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/660-102-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/660-104-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/660-108-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/660-106-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/660-110-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/660-112-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/660-114-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/660-116-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/660-118-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/660-120-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/660-577-0x0000000000840000-0x0000000000884000-memory.dmp

memory/660-579-0x00000000045A5000-0x00000000045B6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-05-21 12:18

Reported

2022-05-21 12:32

Platform

win10v2004-20220414-en

Max time kernel

60s

Max time network

190s

Command Line

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

Signatures

MassLogger

stealer spyware masslogger

MassLogger Main Payload

Description Indicator Process Target
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MassLogger log file

Description Indicator Process Target
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Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\SKBMT__B.exe N/A

Looks up external IP address via web service

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3204 set thread context of 1656 N/A C:\Users\Admin\AppData\Local\Temp\SKBMT__B.exe C:\Users\Admin\AppData\Local\Temp\SKBMT__B.exe

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

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

Processes

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

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

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 api.ipify.org udp
US 8.8.8.8:53 api.ipify.org udp
US 3.232.242.170:80 api.ipify.org tcp

Files

memory/3204-130-0x0000000000D00000-0x0000000000DD0000-memory.dmp

memory/3204-131-0x0000000005CD0000-0x0000000006274000-memory.dmp

memory/3204-132-0x00000000057C0000-0x0000000005852000-memory.dmp

memory/3204-133-0x0000000005790000-0x000000000579A000-memory.dmp

memory/3204-134-0x0000000009280000-0x000000000931C000-memory.dmp

memory/1656-135-0x0000000000000000-mapping.dmp

memory/1656-136-0x0000000000400000-0x00000000004B0000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\SKBMT__B.exe.log

MD5 8ec831f3e3a3f77e4a7b9cd32b48384c
SHA1 d83f09fd87c5bd86e045873c231c14836e76a05c
SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA512 26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

memory/1656-139-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1656-141-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1656-143-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1656-145-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1656-147-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1656-149-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1656-151-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1656-153-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1656-155-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1656-157-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1656-159-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1656-161-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1656-163-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1656-165-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1656-167-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1656-169-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1656-171-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1656-173-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1656-175-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1656-177-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1656-179-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1656-183-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1656-181-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1656-185-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1656-189-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1656-187-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1656-191-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1656-193-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1656-195-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1656-197-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1656-199-0x0000000000400000-0x00000000004B0000-memory.dmp

memory/1656-646-0x0000000005560000-0x00000000055C6000-memory.dmp