Malware Analysis Report

2025-08-11 06:18

Sample ID 230415-bp88laeb21
Target 5f23eb72d5651967c1fc91f4dbcc8baf9383801d28ab0e463824d55108abd603
SHA256 5f23eb72d5651967c1fc91f4dbcc8baf9383801d28ab0e463824d55108abd603
Tags
rhadamanthys smokeloader pub4 backdoor collection stealer trojan
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 Overview

score
10/10

SHA256

5f23eb72d5651967c1fc91f4dbcc8baf9383801d28ab0e463824d55108abd603

Threat Level: Known bad

The file 5f23eb72d5651967c1fc91f4dbcc8baf9383801d28ab0e463824d55108abd603 was found to be: Known bad.

Malicious Activity Summary

rhadamanthys smokeloader pub4 backdoor collection stealer trojan

Rhadamanthys

Detect rhadamanthys stealer shellcode

SmokeLoader

Downloads MZ/PE file

Executes dropped EXE

Accesses Microsoft Outlook profiles

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Checks processor information in registry

Checks SCSI registry key(s)

Suspicious behavior: GetForegroundWindowSpam

Uses Task Scheduler COM API

outlook_win_path

Suspicious behavior: MapViewOfSection

outlook_office_path

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-04-15 01:20

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-04-15 01:20

Reported

2023-04-15 01:22

Platform

win10v2004-20230221-en

Max time kernel

151s

Max time network

128s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5f23eb72d5651967c1fc91f4dbcc8baf9383801d28ab0e463824d55108abd603.exe"

Signatures

Detect rhadamanthys stealer shellcode

Description Indicator Process Target
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Rhadamanthys

stealer rhadamanthys

SmokeLoader

trojan backdoor smokeloader

Downloads MZ/PE file

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\16C4.exe N/A

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Office\10.0\Outlook\Profiles\Outlook C:\Windows\system32\dllhost.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Office\11.0\Outlook\Profiles\Outlook C:\Windows\system32\dllhost.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Office\12.0\Outlook\Profiles\Outlook C:\Windows\system32\dllhost.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook C:\Windows\system32\dllhost.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook C:\Windows\system32\dllhost.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook C:\Windows\system32\dllhost.exe N/A

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\16C4.exe

Checks SCSI registry key(s)

Description Indicator Process Target
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\5f23eb72d5651967c1fc91f4dbcc8baf9383801d28ab0e463824d55108abd603.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\5f23eb72d5651967c1fc91f4dbcc8baf9383801d28ab0e463824d55108abd603.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\5f23eb72d5651967c1fc91f4dbcc8baf9383801d28ab0e463824d55108abd603.exe N/A

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Windows\system32\dllhost.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Windows\system32\dllhost.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\5f23eb72d5651967c1fc91f4dbcc8baf9383801d28ab0e463824d55108abd603.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\5f23eb72d5651967c1fc91f4dbcc8baf9383801d28ab0e463824d55108abd603.exe N/A
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Suspicious behavior: GetForegroundWindowSpam

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

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\5f23eb72d5651967c1fc91f4dbcc8baf9383801d28ab0e463824d55108abd603.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeShutdownPrivilege N/A N/A N/A
Token: SeCreatePagefilePrivilege N/A N/A N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3124 wrote to memory of 4196 N/A N/A C:\Users\Admin\AppData\Local\Temp\16C4.exe
PID 3124 wrote to memory of 4196 N/A N/A C:\Users\Admin\AppData\Local\Temp\16C4.exe
PID 3124 wrote to memory of 4196 N/A N/A C:\Users\Admin\AppData\Local\Temp\16C4.exe
PID 4196 wrote to memory of 1268 N/A C:\Users\Admin\AppData\Local\Temp\16C4.exe C:\Windows\system32\dllhost.exe
PID 4196 wrote to memory of 1268 N/A C:\Users\Admin\AppData\Local\Temp\16C4.exe C:\Windows\system32\dllhost.exe
PID 4196 wrote to memory of 1268 N/A C:\Users\Admin\AppData\Local\Temp\16C4.exe C:\Windows\system32\dllhost.exe
PID 4196 wrote to memory of 1268 N/A C:\Users\Admin\AppData\Local\Temp\16C4.exe C:\Windows\system32\dllhost.exe

Uses Task Scheduler COM API

persistence

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook C:\Windows\system32\dllhost.exe N/A

outlook_win_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook C:\Windows\system32\dllhost.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\5f23eb72d5651967c1fc91f4dbcc8baf9383801d28ab0e463824d55108abd603.exe

"C:\Users\Admin\AppData\Local\Temp\5f23eb72d5651967c1fc91f4dbcc8baf9383801d28ab0e463824d55108abd603.exe"

C:\Users\Admin\AppData\Local\Temp\16C4.exe

C:\Users\Admin\AppData\Local\Temp\16C4.exe

C:\Windows\system32\dllhost.exe

"C:\Windows\system32\dllhost.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4196 -ip 4196

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4196 -s 712

Network

Country Destination Domain Proto
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 117.18.237.29:80 tcp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 aapu.at udp
PA 190.140.140.75:80 aapu.at tcp
PA 190.140.140.75:80 aapu.at tcp
PA 190.140.140.75:80 aapu.at tcp
US 8.8.8.8:53 75.140.140.190.in-addr.arpa udp
PA 190.140.140.75:80 aapu.at tcp
PA 190.140.140.75:80 aapu.at tcp
PA 190.140.140.75:80 aapu.at tcp
PA 190.140.140.75:80 aapu.at tcp
US 40.77.2.164:443 tcp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
PA 190.140.140.75:80 aapu.at tcp
PA 190.140.140.75:80 aapu.at tcp
PA 190.140.140.75:80 aapu.at tcp
PA 190.140.140.75:80 aapu.at tcp
PA 190.140.140.75:80 aapu.at tcp
PA 190.140.140.75:80 aapu.at tcp
US 52.168.112.66:443 tcp
PA 190.140.140.75:80 aapu.at tcp
PA 190.140.140.75:80 aapu.at tcp
IT 179.43.155.247:80 179.43.155.247 tcp
PA 190.140.140.75:80 aapu.at tcp
US 8.8.8.8:53 247.155.43.179.in-addr.arpa udp
PA 190.140.140.75:80 aapu.at tcp
US 209.197.3.8:80 tcp
US 209.197.3.8:80 tcp
PA 190.140.140.75:80 aapu.at tcp
NL 173.223.113.164:443 tcp
PA 190.140.140.75:80 aapu.at tcp
PA 190.140.140.75:80 aapu.at tcp
PA 190.140.140.75:80 aapu.at tcp
PA 190.140.140.75:80 aapu.at tcp
PA 190.140.140.75:80 aapu.at tcp
PA 190.140.140.75:80 aapu.at tcp
PA 190.140.140.75:80 aapu.at tcp
PA 190.140.140.75:80 aapu.at tcp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 2.36.159.162.in-addr.arpa udp
PA 190.140.140.75:80 aapu.at tcp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 aapu.at udp
KR 211.171.233.129:80 aapu.at tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 129.233.171.211.in-addr.arpa udp
US 8.8.8.8:53 63.13.109.52.in-addr.arpa udp
KR 211.171.233.129:80 aapu.at tcp
KR 211.171.233.129:80 aapu.at tcp
KR 211.171.233.129:80 aapu.at tcp
US 93.184.221.240:80 tcp
PA 179.43.142.201:80 catalog.s.download.windowsupdate.com tcp
KR 211.171.233.129:80 aapu.at tcp
US 8.8.8.8:53 201.142.43.179.in-addr.arpa udp
KR 211.171.233.129:80 aapu.at tcp
PA 179.43.142.201:80 179.43.142.201 tcp

Files

memory/1736-134-0x0000000000A90000-0x0000000000A99000-memory.dmp

memory/3124-135-0x0000000001030000-0x0000000001046000-memory.dmp

memory/1736-136-0x0000000000400000-0x00000000007FD000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\16C4.exe

MD5 275a529eb263287899c1524c3f27db6a
SHA1 f767a1bf6f2175a040e9066b4dc1675f7f5c77e8
SHA256 31ee3c05d4163ff7d0682efca21c44fdbfb3c0a9dce58c665893b38ba9d16356
SHA512 e93f8594296915775e8789f7f297d57cc5e66f6f258f9c9aba134445b6def1461f990c7d6440c9bd3ceaeff1a26af39490c0aee6f50a850c24696ce6cc2ec154

C:\Users\Admin\AppData\Local\Temp\16C4.exe

MD5 275a529eb263287899c1524c3f27db6a
SHA1 f767a1bf6f2175a040e9066b4dc1675f7f5c77e8
SHA256 31ee3c05d4163ff7d0682efca21c44fdbfb3c0a9dce58c665893b38ba9d16356
SHA512 e93f8594296915775e8789f7f297d57cc5e66f6f258f9c9aba134445b6def1461f990c7d6440c9bd3ceaeff1a26af39490c0aee6f50a850c24696ce6cc2ec154

memory/4196-147-0x0000000000A60000-0x0000000000A8E000-memory.dmp

memory/4196-148-0x0000000000400000-0x000000000080F000-memory.dmp

memory/4196-150-0x0000000000400000-0x000000000080F000-memory.dmp

memory/4196-152-0x0000000000AA0000-0x0000000000ABC000-memory.dmp

memory/4196-153-0x0000000000AC0000-0x0000000000ADA000-memory.dmp

memory/4196-154-0x0000000000AA0000-0x0000000000ABC000-memory.dmp

memory/1268-155-0x0000024FD9A30000-0x0000024FD9A31000-memory.dmp

memory/4196-156-0x0000000000AC0000-0x0000000000ADA000-memory.dmp

memory/1268-157-0x0000024FD9D40000-0x0000024FD9D47000-memory.dmp

memory/1268-158-0x00007FF4D1380000-0x00007FF4D147A000-memory.dmp

memory/1268-159-0x00007FF4D1380000-0x00007FF4D147A000-memory.dmp

memory/4196-161-0x0000000000AA0000-0x0000000000ABC000-memory.dmp

memory/1268-162-0x00007FF4D1380000-0x00007FF4D147A000-memory.dmp

memory/1268-163-0x00007FF4D1380000-0x00007FF4D147A000-memory.dmp

memory/1268-164-0x00007FF4D1380000-0x00007FF4D147A000-memory.dmp

memory/1268-165-0x00007FF4D1380000-0x00007FF4D147A000-memory.dmp