Malware Analysis Report

2025-03-15 03:53

Sample ID 230816-hysersad6s
Target 1a3ae7914610860bb295fd5ba9185b1db8f960738a43a20c838cc79e79b47f26
SHA256 1a3ae7914610860bb295fd5ba9185b1db8f960738a43a20c838cc79e79b47f26
Tags
aspackv2 fatalrat infostealer rat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

1a3ae7914610860bb295fd5ba9185b1db8f960738a43a20c838cc79e79b47f26

Threat Level: Known bad

The file 1a3ae7914610860bb295fd5ba9185b1db8f960738a43a20c838cc79e79b47f26 was found to be: Known bad.

Malicious Activity Summary

aspackv2 fatalrat infostealer rat

FatalRat

Fatal Rat payload

ASPack v2.12-2.42

Executes dropped EXE

Program crash

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-08-16 07:09

Signatures

ASPack v2.12-2.42

aspackv2
Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-08-16 07:09

Reported

2023-08-16 07:11

Platform

win7-20230712-en

Max time kernel

140s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1a3ae7914610860bb295fd5ba9185b1db8f960738a43a20c838cc79e79b47f26.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\1a3ae7914610860bb295fd5ba9185b1db8f960738a43a20c838cc79e79b47f26.exe

"C:\Users\Admin\AppData\Local\Temp\1a3ae7914610860bb295fd5ba9185b1db8f960738a43a20c838cc79e79b47f26.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2372 -s 116

Network

Country Destination Domain Proto
HK 154.92.16.100:16553 tcp

Files

memory/2372-56-0x0000000000190000-0x00000000001EE000-memory.dmp

memory/2372-55-0x0000000000190000-0x00000000001EE000-memory.dmp

memory/2372-54-0x0000000000190000-0x00000000001EE000-memory.dmp

memory/2372-57-0x0000000000610000-0x0000000000650000-memory.dmp

memory/2372-58-0x0000000000190000-0x00000000001EE000-memory.dmp

memory/2372-59-0x0000000000610000-0x0000000000650000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-08-16 07:09

Reported

2023-08-16 07:11

Platform

win10v2004-20230703-en

Max time kernel

144s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1a3ae7914610860bb295fd5ba9185b1db8f960738a43a20c838cc79e79b47f26.exe"

Signatures

FatalRat

infostealer rat fatalrat

Fatal Rat payload

rat infostealer
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

ASPack v2.12-2.42

aspackv2
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\1a3ae7914610860bb295fd5ba9185b1db8f960738a43a20c838cc79e79b47f26.exe N/A

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\1a3ae7914610860bb295fd5ba9185b1db8f960738a43a20c838cc79e79b47f26.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\1a3ae7914610860bb295fd5ba9185b1db8f960738a43a20c838cc79e79b47f26.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\1a3ae7914610860bb295fd5ba9185b1db8f960738a43a20c838cc79e79b47f26.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\1a3ae7914610860bb295fd5ba9185b1db8f960738a43a20c838cc79e79b47f26.exe N/A
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Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1a3ae7914610860bb295fd5ba9185b1db8f960738a43a20c838cc79e79b47f26.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\1a3ae7914610860bb295fd5ba9185b1db8f960738a43a20c838cc79e79b47f26.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\1a3ae7914610860bb295fd5ba9185b1db8f960738a43a20c838cc79e79b47f26.exe

"C:\Users\Admin\AppData\Local\Temp\1a3ae7914610860bb295fd5ba9185b1db8f960738a43a20c838cc79e79b47f26.exe"

C:\Users\Admin\AppData\Local\1a3ae7914610860bb295fd5ba9185b1db8f960738a43a20c838cc79e79b47f26.exe

"C:\Users\Admin\AppData\Local\1a3ae7914610860bb295fd5ba9185b1db8f960738a43a20c838cc79e79b47f26.exe"

Network

Country Destination Domain Proto
HK 154.92.16.100:16553 tcp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 240.81.21.72.in-addr.arpa udp
US 8.8.8.8:53 100.16.92.154.in-addr.arpa udp
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 108.211.229.192.in-addr.arpa udp
HK 154.92.16.100:16553 tcp
HK 154.92.16.100:8858 tcp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 2.173.189.20.in-addr.arpa udp

Files

memory/4968-133-0x0000000000D60000-0x0000000000DBE000-memory.dmp

memory/4968-134-0x0000000000D60000-0x0000000000DBE000-memory.dmp

memory/4968-135-0x0000000000D60000-0x0000000000DBE000-memory.dmp

memory/4968-136-0x00000000016C0000-0x00000000017C0000-memory.dmp

memory/4968-137-0x0000000000DD0000-0x0000000000DD1000-memory.dmp

memory/4968-139-0x0000000000400000-0x0000000000438000-memory.dmp

memory/4968-138-0x0000000010000000-0x0000000010031000-memory.dmp

memory/4968-142-0x0000000001340000-0x000000000136A000-memory.dmp

C:\Users\Admin\AppData\Local\1a3ae7914610860bb295fd5ba9185b1db8f960738a43a20c838cc79e79b47f26.exe

MD5 b6335bc769f15b2d20c92c1f6cc8fcc5
SHA1 ef999a8fca3e683b6c3041f12cbddcf5c01b9c57
SHA256 1a3ae7914610860bb295fd5ba9185b1db8f960738a43a20c838cc79e79b47f26
SHA512 b0d10909b27f122725b56b2e81f84c46ea6314fa378c1efc9607db277d3cf1b670067aed3f82a8c29f2f2f9b632b02d79cec59dbe3507de08cb9b3cc4de52eea

C:\Users\Admin\AppData\Local\1a3ae7914610860bb295fd5ba9185b1db8f960738a43a20c838cc79e79b47f26.exe

MD5 b6335bc769f15b2d20c92c1f6cc8fcc5
SHA1 ef999a8fca3e683b6c3041f12cbddcf5c01b9c57
SHA256 1a3ae7914610860bb295fd5ba9185b1db8f960738a43a20c838cc79e79b47f26
SHA512 b0d10909b27f122725b56b2e81f84c46ea6314fa378c1efc9607db277d3cf1b670067aed3f82a8c29f2f2f9b632b02d79cec59dbe3507de08cb9b3cc4de52eea

C:\Users\Admin\AppData\Local\1a3ae7914610860bb295fd5ba9185b1db8f960738a43a20c838cc79e79b47f26.exe

MD5 b6335bc769f15b2d20c92c1f6cc8fcc5
SHA1 ef999a8fca3e683b6c3041f12cbddcf5c01b9c57
SHA256 1a3ae7914610860bb295fd5ba9185b1db8f960738a43a20c838cc79e79b47f26
SHA512 b0d10909b27f122725b56b2e81f84c46ea6314fa378c1efc9607db277d3cf1b670067aed3f82a8c29f2f2f9b632b02d79cec59dbe3507de08cb9b3cc4de52eea

memory/2148-162-0x00000000006E0000-0x000000000073E000-memory.dmp

memory/2148-161-0x00000000006E0000-0x000000000073E000-memory.dmp

memory/4968-160-0x0000000000D60000-0x0000000000DBE000-memory.dmp

memory/2148-158-0x00000000006E0000-0x000000000073E000-memory.dmp

memory/2148-163-0x0000000000C70000-0x0000000000D70000-memory.dmp

memory/2148-166-0x00000000009B0000-0x00000000009E8000-memory.dmp

memory/2148-168-0x0000000000A10000-0x0000000000A3A000-memory.dmp

memory/2148-173-0x00000000006E0000-0x000000000073E000-memory.dmp

memory/2148-174-0x0000000000C70000-0x0000000000D70000-memory.dmp