Malware Analysis Report

2025-03-15 03:55

Sample ID 230812-hpb2esae59
Target 4c736ac4776ecc45e3f33f3adffb8e876e523889425c08fd88ec4ba21374734f
SHA256 4c736ac4776ecc45e3f33f3adffb8e876e523889425c08fd88ec4ba21374734f
Tags
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

4c736ac4776ecc45e3f33f3adffb8e876e523889425c08fd88ec4ba21374734f

Threat Level: Known bad

The file 4c736ac4776ecc45e3f33f3adffb8e876e523889425c08fd88ec4ba21374734f was found to be: Known bad.

Malicious Activity Summary

fatalrat infostealer rat

FatalRat

Fatal Rat payload

Executes dropped EXE

Unsigned PE

Program crash

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-08-12 06:54

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-08-12 06:54

Reported

2023-08-12 06:56

Platform

win7-20230712-en

Max time kernel

122s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4c736ac4776ecc45e3f33f3adffb8e876e523889425c08fd88ec4ba21374734f.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\4c736ac4776ecc45e3f33f3adffb8e876e523889425c08fd88ec4ba21374734f.exe

"C:\Users\Admin\AppData\Local\Temp\4c736ac4776ecc45e3f33f3adffb8e876e523889425c08fd88ec4ba21374734f.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2532 -s 116

Network

Country Destination Domain Proto
HK 39.109.115.130:16553 tcp

Files

memory/2532-54-0x0000000002370000-0x00000000023B0000-memory.dmp

memory/2532-55-0x0000000002370000-0x00000000023B0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-08-12 06:54

Reported

2023-08-12 06:56

Platform

win10v2004-20230703-en

Max time kernel

124s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4c736ac4776ecc45e3f33f3adffb8e876e523889425c08fd88ec4ba21374734f.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

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\4c736ac4776ecc45e3f33f3adffb8e876e523889425c08fd88ec4ba21374734f.exe N/A

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\4c736ac4776ecc45e3f33f3adffb8e876e523889425c08fd88ec4ba21374734f.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\4c736ac4776ecc45e3f33f3adffb8e876e523889425c08fd88ec4ba21374734f.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\4c736ac4776ecc45e3f33f3adffb8e876e523889425c08fd88ec4ba21374734f.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\4c736ac4776ecc45e3f33f3adffb8e876e523889425c08fd88ec4ba21374734f.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\4c736ac4776ecc45e3f33f3adffb8e876e523889425c08fd88ec4ba21374734f.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\4c736ac4776ecc45e3f33f3adffb8e876e523889425c08fd88ec4ba21374734f.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\4c736ac4776ecc45e3f33f3adffb8e876e523889425c08fd88ec4ba21374734f.exe N/A
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N/A N/A C:\Users\Admin\AppData\Local\4c736ac4776ecc45e3f33f3adffb8e876e523889425c08fd88ec4ba21374734f.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\4c736ac4776ecc45e3f33f3adffb8e876e523889425c08fd88ec4ba21374734f.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\4c736ac4776ecc45e3f33f3adffb8e876e523889425c08fd88ec4ba21374734f.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4c736ac4776ecc45e3f33f3adffb8e876e523889425c08fd88ec4ba21374734f.exe

"C:\Users\Admin\AppData\Local\Temp\4c736ac4776ecc45e3f33f3adffb8e876e523889425c08fd88ec4ba21374734f.exe"

C:\Users\Admin\AppData\Local\4c736ac4776ecc45e3f33f3adffb8e876e523889425c08fd88ec4ba21374734f.exe

"C:\Users\Admin\AppData\Local\4c736ac4776ecc45e3f33f3adffb8e876e523889425c08fd88ec4ba21374734f.exe"

Network

Country Destination Domain Proto
HK 39.109.115.130:16553 tcp
US 8.8.8.8:53 130.115.109.39.in-addr.arpa udp
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 254.135.241.8.in-addr.arpa udp
HK 39.109.115.130:16553 tcp
HK 39.109.115.130:5858 tcp
US 8.8.8.8:53 108.211.229.192.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 203.151.224.20.in-addr.arpa udp
US 8.8.8.8:53 226.162.46.104.in-addr.arpa udp

Files

memory/1860-136-0x0000000000B90000-0x0000000000C90000-memory.dmp

memory/1860-137-0x0000000000510000-0x0000000000511000-memory.dmp

memory/1860-138-0x00000000009A0000-0x00000000009D8000-memory.dmp

memory/1860-139-0x0000000010000000-0x0000000010031000-memory.dmp

memory/1860-142-0x00000000009F0000-0x0000000000A1A000-memory.dmp

C:\Users\Admin\AppData\Local\4c736ac4776ecc45e3f33f3adffb8e876e523889425c08fd88ec4ba21374734f.exe

MD5 eaccfe1c67a0935d24b6f270a669d1a4
SHA1 cac944d39c6fb98a088726ced806f1259e36e95d
SHA256 4c736ac4776ecc45e3f33f3adffb8e876e523889425c08fd88ec4ba21374734f
SHA512 5ba4ba0713285b4c1051ca5df5496c73c2c58d0f74617203808b98bf5f23db77b762dc3b8056c12b1c0e571f8c78a184e74605faf1414743a7ece194f1af1972

C:\Users\Admin\AppData\Local\4c736ac4776ecc45e3f33f3adffb8e876e523889425c08fd88ec4ba21374734f.exe

MD5 eaccfe1c67a0935d24b6f270a669d1a4
SHA1 cac944d39c6fb98a088726ced806f1259e36e95d
SHA256 4c736ac4776ecc45e3f33f3adffb8e876e523889425c08fd88ec4ba21374734f
SHA512 5ba4ba0713285b4c1051ca5df5496c73c2c58d0f74617203808b98bf5f23db77b762dc3b8056c12b1c0e571f8c78a184e74605faf1414743a7ece194f1af1972

C:\Users\Admin\AppData\Local\4c736ac4776ecc45e3f33f3adffb8e876e523889425c08fd88ec4ba21374734f.exe

MD5 eaccfe1c67a0935d24b6f270a669d1a4
SHA1 cac944d39c6fb98a088726ced806f1259e36e95d
SHA256 4c736ac4776ecc45e3f33f3adffb8e876e523889425c08fd88ec4ba21374734f
SHA512 5ba4ba0713285b4c1051ca5df5496c73c2c58d0f74617203808b98bf5f23db77b762dc3b8056c12b1c0e571f8c78a184e74605faf1414743a7ece194f1af1972

memory/1204-157-0x0000000000C00000-0x0000000000D00000-memory.dmp

memory/1204-159-0x00000000009A0000-0x00000000009D8000-memory.dmp

memory/1204-161-0x0000000000A00000-0x0000000000A2A000-memory.dmp

memory/1204-166-0x0000000000C00000-0x0000000000D00000-memory.dmp