Malware Analysis Report

2025-03-15 03:55

Sample ID 230829-3dsj9abf6z
Target ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa
SHA256 ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa
Tags
fatalrat infostealer persistence 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

ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa

Threat Level: Known bad

The file ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa was found to be: Known bad.

Malicious Activity Summary

fatalrat infostealer persistence rat

FatalRat

Fatal Rat payload

Executes dropped EXE

Loads dropped DLL

Adds Run key to start application

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-08-29 23:24

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-08-29 23:24

Reported

2023-08-29 23:26

Platform

win7-20230712-en

Max time kernel

139s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.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\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-377084978-2088738870-2818360375-1000\Software\Microsoft\Windows\CurrentVersion\Run\SVP7 = "C:\\Users\\Admin\\AppData\\Local\\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe" C:\Users\Admin\AppData\Local\Temp\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe N/A

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2184 wrote to memory of 2932 N/A C:\Users\Admin\AppData\Local\Temp\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe C:\Users\Admin\AppData\Local\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe
PID 2184 wrote to memory of 2932 N/A C:\Users\Admin\AppData\Local\Temp\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe C:\Users\Admin\AppData\Local\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe
PID 2184 wrote to memory of 2932 N/A C:\Users\Admin\AppData\Local\Temp\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe C:\Users\Admin\AppData\Local\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe
PID 2184 wrote to memory of 2932 N/A C:\Users\Admin\AppData\Local\Temp\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe C:\Users\Admin\AppData\Local\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe
PID 2932 wrote to memory of 3040 N/A C:\Users\Admin\AppData\Local\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe C:\Windows\SysWOW64\notepad.exe
PID 2932 wrote to memory of 3040 N/A C:\Users\Admin\AppData\Local\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe C:\Windows\SysWOW64\notepad.exe
PID 2932 wrote to memory of 3040 N/A C:\Users\Admin\AppData\Local\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe C:\Windows\SysWOW64\notepad.exe
PID 2932 wrote to memory of 3040 N/A C:\Users\Admin\AppData\Local\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe C:\Windows\SysWOW64\notepad.exe
PID 2932 wrote to memory of 3040 N/A C:\Users\Admin\AppData\Local\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe C:\Windows\SysWOW64\notepad.exe
PID 2932 wrote to memory of 3040 N/A C:\Users\Admin\AppData\Local\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe C:\Windows\SysWOW64\notepad.exe

Processes

C:\Users\Admin\AppData\Local\Temp\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe

"C:\Users\Admin\AppData\Local\Temp\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe"

C:\Users\Admin\AppData\Local\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe

"C:\Users\Admin\AppData\Local\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe"

C:\Windows\SysWOW64\notepad.exe

notepad.exe

Network

Country Destination Domain Proto
US 38.181.24.204:80 38.181.24.204 tcp
US 38.181.24.204:8081 tcp
US 38.181.24.204:8081 tcp
US 38.181.24.204:8081 tcp
US 38.181.24.204:8081 tcp
US 38.181.24.204:8081 tcp

Files

memory/2184-5-0x0000000000D00000-0x0000000000D32000-memory.dmp

memory/2184-4-0x0000000010000000-0x0000000010031000-memory.dmp

memory/2184-9-0x0000000000C90000-0x0000000000CBA000-memory.dmp

\Users\Admin\AppData\Local\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe

MD5 806b11715f620528391dbcd800fbdb8f
SHA1 9dafcc2f45fe53dca8240343be3090e16ade3e13
SHA256 ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa
SHA512 43bcdf2d63b00dd3bf0961ace2488052a9d8c06ee3a053696a3fc3b5af7b43ac35442dbf413e2bb3f472c4e64867becf5dcc741e581892cba83cb3a06dab501b

C:\Users\Admin\AppData\Local\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe

MD5 806b11715f620528391dbcd800fbdb8f
SHA1 9dafcc2f45fe53dca8240343be3090e16ade3e13
SHA256 ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa
SHA512 43bcdf2d63b00dd3bf0961ace2488052a9d8c06ee3a053696a3fc3b5af7b43ac35442dbf413e2bb3f472c4e64867becf5dcc741e581892cba83cb3a06dab501b

C:\Users\Admin\AppData\Local\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe

MD5 806b11715f620528391dbcd800fbdb8f
SHA1 9dafcc2f45fe53dca8240343be3090e16ade3e13
SHA256 ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa
SHA512 43bcdf2d63b00dd3bf0961ace2488052a9d8c06ee3a053696a3fc3b5af7b43ac35442dbf413e2bb3f472c4e64867becf5dcc741e581892cba83cb3a06dab501b

C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\B9M1KBX1\ceshijiqimao[1].bin

MD5 6fd1cdf4c712ee59bf684ae7e18c5142
SHA1 b04b90abfb4f5c87000244b66842d1dfcfc5b63d
SHA256 50a7d092025b2e62728e33655d13ad28ff10b0863be7f9aef419efff660083dc
SHA512 2a8eaf3a5e25255e747b2600bbc6afd1d42a88260a446c3dd197cbe62eec1117a512e6d3f24fb8649c02bfdd44c1b05c2ecc36177309a13f9aec1391d12fecd5

C:\ProgramData\ca221.png

MD5 6fd1cdf4c712ee59bf684ae7e18c5142
SHA1 b04b90abfb4f5c87000244b66842d1dfcfc5b63d
SHA256 50a7d092025b2e62728e33655d13ad28ff10b0863be7f9aef419efff660083dc
SHA512 2a8eaf3a5e25255e747b2600bbc6afd1d42a88260a446c3dd197cbe62eec1117a512e6d3f24fb8649c02bfdd44c1b05c2ecc36177309a13f9aec1391d12fecd5

C:\Users\Admin\AppData\Local\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe

MD5 806b11715f620528391dbcd800fbdb8f
SHA1 9dafcc2f45fe53dca8240343be3090e16ade3e13
SHA256 ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa
SHA512 43bcdf2d63b00dd3bf0961ace2488052a9d8c06ee3a053696a3fc3b5af7b43ac35442dbf413e2bb3f472c4e64867becf5dcc741e581892cba83cb3a06dab501b

C:\ProgramData\ca221.png

MD5 6fd1cdf4c712ee59bf684ae7e18c5142
SHA1 b04b90abfb4f5c87000244b66842d1dfcfc5b63d
SHA256 50a7d092025b2e62728e33655d13ad28ff10b0863be7f9aef419efff660083dc
SHA512 2a8eaf3a5e25255e747b2600bbc6afd1d42a88260a446c3dd197cbe62eec1117a512e6d3f24fb8649c02bfdd44c1b05c2ecc36177309a13f9aec1391d12fecd5

memory/2932-29-0x0000000000340000-0x000000000036A000-memory.dmp

memory/3040-38-0x0000000000270000-0x0000000000271000-memory.dmp

memory/3040-35-0x00000000001A0000-0x00000000001A1000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-08-29 23:24

Reported

2023-08-29 23:26

Platform

win10v2004-20230703-en

Max time kernel

142s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.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\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1043950675-1972537973-2972532878-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SVP7 = "C:\\Users\\Admin\\AppData\\Local\\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe" C:\Users\Admin\AppData\Local\Temp\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe N/A

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1640 wrote to memory of 2512 N/A C:\Users\Admin\AppData\Local\Temp\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe C:\Users\Admin\AppData\Local\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe
PID 1640 wrote to memory of 2512 N/A C:\Users\Admin\AppData\Local\Temp\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe C:\Users\Admin\AppData\Local\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe
PID 1640 wrote to memory of 2512 N/A C:\Users\Admin\AppData\Local\Temp\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe C:\Users\Admin\AppData\Local\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe
PID 2512 wrote to memory of 3412 N/A C:\Users\Admin\AppData\Local\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe C:\Windows\SysWOW64\notepad.exe
PID 2512 wrote to memory of 3412 N/A C:\Users\Admin\AppData\Local\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe C:\Windows\SysWOW64\notepad.exe
PID 2512 wrote to memory of 3412 N/A C:\Users\Admin\AppData\Local\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe C:\Windows\SysWOW64\notepad.exe
PID 2512 wrote to memory of 3412 N/A C:\Users\Admin\AppData\Local\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe C:\Windows\SysWOW64\notepad.exe
PID 2512 wrote to memory of 3412 N/A C:\Users\Admin\AppData\Local\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe C:\Windows\SysWOW64\notepad.exe

Processes

C:\Users\Admin\AppData\Local\Temp\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe

"C:\Users\Admin\AppData\Local\Temp\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe"

C:\Users\Admin\AppData\Local\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe

"C:\Users\Admin\AppData\Local\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe"

C:\Windows\SysWOW64\notepad.exe

notepad.exe

Network

Country Destination Domain Proto
US 38.181.24.204:80 38.181.24.204 tcp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 204.24.181.38.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 38.181.24.204:8081 tcp
US 38.181.24.204:8081 tcp
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 8.8.8.8:53 133.121.18.2.in-addr.arpa udp
US 38.181.24.204:8081 tcp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 38.181.24.204:8081 tcp
US 38.181.24.204:8081 tcp
US 8.8.8.8:53 90.65.42.20.in-addr.arpa udp

Files

memory/1640-4-0x0000000010000000-0x0000000010031000-memory.dmp

memory/1640-5-0x0000000003B80000-0x0000000003BB2000-memory.dmp

memory/1640-9-0x0000000003BC0000-0x0000000003BEA000-memory.dmp

C:\Users\Admin\AppData\Local\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe

MD5 806b11715f620528391dbcd800fbdb8f
SHA1 9dafcc2f45fe53dca8240343be3090e16ade3e13
SHA256 ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa
SHA512 43bcdf2d63b00dd3bf0961ace2488052a9d8c06ee3a053696a3fc3b5af7b43ac35442dbf413e2bb3f472c4e64867becf5dcc741e581892cba83cb3a06dab501b

C:\Users\Admin\AppData\Local\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe

MD5 806b11715f620528391dbcd800fbdb8f
SHA1 9dafcc2f45fe53dca8240343be3090e16ade3e13
SHA256 ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa
SHA512 43bcdf2d63b00dd3bf0961ace2488052a9d8c06ee3a053696a3fc3b5af7b43ac35442dbf413e2bb3f472c4e64867becf5dcc741e581892cba83cb3a06dab501b

C:\Users\Admin\AppData\Local\ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa.exe

MD5 806b11715f620528391dbcd800fbdb8f
SHA1 9dafcc2f45fe53dca8240343be3090e16ade3e13
SHA256 ae862f12f3bc695f59c49fba5e1a3fbc37536eb0e74284f36a18026915c1befa
SHA512 43bcdf2d63b00dd3bf0961ace2488052a9d8c06ee3a053696a3fc3b5af7b43ac35442dbf413e2bb3f472c4e64867becf5dcc741e581892cba83cb3a06dab501b

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\HW3GGUK8\ceshijiqimao[1].bin

MD5 6fd1cdf4c712ee59bf684ae7e18c5142
SHA1 b04b90abfb4f5c87000244b66842d1dfcfc5b63d
SHA256 50a7d092025b2e62728e33655d13ad28ff10b0863be7f9aef419efff660083dc
SHA512 2a8eaf3a5e25255e747b2600bbc6afd1d42a88260a446c3dd197cbe62eec1117a512e6d3f24fb8649c02bfdd44c1b05c2ecc36177309a13f9aec1391d12fecd5

C:\ProgramData\ca221.png

MD5 6fd1cdf4c712ee59bf684ae7e18c5142
SHA1 b04b90abfb4f5c87000244b66842d1dfcfc5b63d
SHA256 50a7d092025b2e62728e33655d13ad28ff10b0863be7f9aef419efff660083dc
SHA512 2a8eaf3a5e25255e747b2600bbc6afd1d42a88260a446c3dd197cbe62eec1117a512e6d3f24fb8649c02bfdd44c1b05c2ecc36177309a13f9aec1391d12fecd5

C:\ProgramData\ca221.png

MD5 6fd1cdf4c712ee59bf684ae7e18c5142
SHA1 b04b90abfb4f5c87000244b66842d1dfcfc5b63d
SHA256 50a7d092025b2e62728e33655d13ad28ff10b0863be7f9aef419efff660083dc
SHA512 2a8eaf3a5e25255e747b2600bbc6afd1d42a88260a446c3dd197cbe62eec1117a512e6d3f24fb8649c02bfdd44c1b05c2ecc36177309a13f9aec1391d12fecd5

memory/2512-33-0x0000000003AC0000-0x0000000003AEA000-memory.dmp

memory/3412-39-0x00000000043A0000-0x00000000043A1000-memory.dmp