Malware Analysis Report

2025-08-10 12:29

Sample ID 230415-1jkqgshd6t
Target 87f8b19fad893802d91a2e618a1ca102419c3e22b00720991350c5a6eb36f4f1
SHA256 87f8b19fad893802d91a2e618a1ca102419c3e22b00720991350c5a6eb36f4f1
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

87f8b19fad893802d91a2e618a1ca102419c3e22b00720991350c5a6eb36f4f1

Threat Level: Known bad

The file 87f8b19fad893802d91a2e618a1ca102419c3e22b00720991350c5a6eb36f4f1 was found to be: Known bad.

Malicious Activity Summary

rhadamanthys smokeloader pub4 backdoor collection stealer trojan

Detect rhadamanthys stealer shellcode

Rhadamanthys

SmokeLoader

Downloads MZ/PE file

Executes dropped EXE

Accesses Microsoft Outlook profiles

Program crash

Suspicious behavior: GetForegroundWindowSpam

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

outlook_office_path

outlook_win_path

Uses Task Scheduler COM API

Suspicious use of AdjustPrivilegeToken

Checks SCSI registry key(s)

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-04-15 21:40

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-04-15 21:40

Reported

2023-04-15 21:43

Platform

win10v2004-20230221-en

Max time kernel

150s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\87f8b19fad893802d91a2e618a1ca102419c3e22b00720991350c5a6eb36f4f1.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\FEC7.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\FEC7.exe

Checks SCSI registry key(s)

Description Indicator Process Target
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\87f8b19fad893802d91a2e618a1ca102419c3e22b00720991350c5a6eb36f4f1.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\87f8b19fad893802d91a2e618a1ca102419c3e22b00720991350c5a6eb36f4f1.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\87f8b19fad893802d91a2e618a1ca102419c3e22b00720991350c5a6eb36f4f1.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\87f8b19fad893802d91a2e618a1ca102419c3e22b00720991350c5a6eb36f4f1.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\87f8b19fad893802d91a2e618a1ca102419c3e22b00720991350c5a6eb36f4f1.exe N/A
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Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\87f8b19fad893802d91a2e618a1ca102419c3e22b00720991350c5a6eb36f4f1.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 3284 wrote to memory of 3120 N/A N/A C:\Users\Admin\AppData\Local\Temp\FEC7.exe
PID 3284 wrote to memory of 3120 N/A N/A C:\Users\Admin\AppData\Local\Temp\FEC7.exe
PID 3284 wrote to memory of 3120 N/A N/A C:\Users\Admin\AppData\Local\Temp\FEC7.exe
PID 3120 wrote to memory of 4956 N/A C:\Users\Admin\AppData\Local\Temp\FEC7.exe C:\Windows\system32\dllhost.exe
PID 3120 wrote to memory of 4956 N/A C:\Users\Admin\AppData\Local\Temp\FEC7.exe C:\Windows\system32\dllhost.exe
PID 3120 wrote to memory of 4956 N/A C:\Users\Admin\AppData\Local\Temp\FEC7.exe C:\Windows\system32\dllhost.exe
PID 3120 wrote to memory of 4956 N/A C:\Users\Admin\AppData\Local\Temp\FEC7.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\87f8b19fad893802d91a2e618a1ca102419c3e22b00720991350c5a6eb36f4f1.exe

"C:\Users\Admin\AppData\Local\Temp\87f8b19fad893802d91a2e618a1ca102419c3e22b00720991350c5a6eb36f4f1.exe"

C:\Users\Admin\AppData\Local\Temp\FEC7.exe

C:\Users\Admin\AppData\Local\Temp\FEC7.exe

C:\Windows\system32\dllhost.exe

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

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3120 -ip 3120

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3120 -s 696

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 108.211.229.192.in-addr.arpa udp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 1.202.248.87.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 aapu.at udp
MX 187.156.112.17:80 aapu.at tcp
MX 187.156.112.17:80 aapu.at tcp
US 8.8.8.8:53 17.112.156.187.in-addr.arpa udp
MX 187.156.112.17:80 aapu.at tcp
MX 187.156.112.17:80 aapu.at tcp
MX 187.156.112.17:80 aapu.at tcp
MX 187.156.112.17:80 aapu.at tcp
MX 187.156.112.17:80 aapu.at tcp
MX 187.156.112.17:80 aapu.at tcp
MX 187.156.112.17:80 aapu.at tcp
MX 187.156.112.17:80 aapu.at tcp
MX 187.156.112.17:80 aapu.at tcp
MX 187.156.112.17:80 aapu.at tcp
MX 187.156.112.17:80 aapu.at tcp
MX 187.156.112.17:80 aapu.at tcp
MX 187.156.112.17:80 aapu.at tcp
US 8.248.1.254:80 tcp
IT 179.43.155.247:80 179.43.155.247 tcp
MX 187.156.112.17:80 aapu.at tcp
US 8.8.8.8:53 247.155.43.179.in-addr.arpa udp
MX 187.156.112.17:80 aapu.at tcp
MX 187.156.112.17:80 aapu.at tcp
MX 187.156.112.17:80 aapu.at tcp
NL 173.223.113.164:443 tcp
NL 173.223.113.131:80 tcp
US 204.79.197.203:80 tcp
MX 187.156.112.17:80 aapu.at tcp
MX 187.156.112.17:80 aapu.at tcp
MX 187.156.112.17:80 aapu.at tcp
MX 187.156.112.17:80 aapu.at tcp
MX 187.156.112.17:80 aapu.at tcp
MX 187.156.112.17:80 aapu.at tcp
MX 187.156.112.17:80 aapu.at tcp
MX 187.156.112.17:80 aapu.at tcp
MX 187.156.112.17:80 aapu.at tcp
MX 187.156.112.17:80 aapu.at tcp
MX 187.156.112.17:80 aapu.at tcp
US 8.8.8.8:53 62.13.109.52.in-addr.arpa udp
MX 187.156.112.17:80 aapu.at tcp
MX 187.156.112.17:80 aapu.at tcp
MX 187.156.112.17:80 aapu.at tcp
PA 179.43.142.201:80 catalog.s.download.windowsupdate.com tcp
US 8.8.8.8:53 201.142.43.179.in-addr.arpa udp
PA 179.43.142.201:80 179.43.142.201 tcp

Files

memory/4900-134-0x0000000002530000-0x0000000002539000-memory.dmp

memory/3284-135-0x0000000000D10000-0x0000000000D26000-memory.dmp

memory/4900-136-0x0000000000400000-0x00000000007FC000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\FEC7.exe

MD5 3af1d419a6b4359fa3f884eed0153954
SHA1 3216468a6e656e860047c5a9b608b09a59c667bf
SHA256 70850c5d011ddde433b2e5887d4844a4ec3159125809c1da4f92c9ca2a4261f6
SHA512 8766dbca8739668f7502f9cc3c8701765fa8c63c95f7d5ef6d1d70b45cd3eb2a47d60031657b2dc7976f712f481ed3f3dbd175458a995c3ff75ef0a1f7ba1fc0

C:\Users\Admin\AppData\Local\Temp\FEC7.exe

MD5 3af1d419a6b4359fa3f884eed0153954
SHA1 3216468a6e656e860047c5a9b608b09a59c667bf
SHA256 70850c5d011ddde433b2e5887d4844a4ec3159125809c1da4f92c9ca2a4261f6
SHA512 8766dbca8739668f7502f9cc3c8701765fa8c63c95f7d5ef6d1d70b45cd3eb2a47d60031657b2dc7976f712f481ed3f3dbd175458a995c3ff75ef0a1f7ba1fc0

memory/3120-147-0x0000000000950000-0x000000000097E000-memory.dmp

memory/3120-148-0x0000000000400000-0x000000000080E000-memory.dmp

memory/3120-150-0x0000000000400000-0x000000000080E000-memory.dmp

memory/3120-151-0x0000000000980000-0x000000000099C000-memory.dmp

memory/3120-152-0x00000000009C0000-0x00000000009DA000-memory.dmp

memory/3120-153-0x0000000000980000-0x000000000099C000-memory.dmp

memory/3120-154-0x0000000000980000-0x000000000099C000-memory.dmp

memory/4956-155-0x000001F370850000-0x000001F370851000-memory.dmp

memory/3120-156-0x00000000009F0000-0x00000000009F2000-memory.dmp

memory/4956-157-0x000001F370B60000-0x000001F370B67000-memory.dmp

memory/4956-158-0x00007FF49DC50000-0x00007FF49DD4A000-memory.dmp

memory/4956-159-0x00007FF49DC50000-0x00007FF49DD4A000-memory.dmp

memory/3120-161-0x0000000000980000-0x000000000099C000-memory.dmp

memory/4956-162-0x00007FF49DC50000-0x00007FF49DD4A000-memory.dmp

memory/4956-163-0x00007FF49DC50000-0x00007FF49DD4A000-memory.dmp

memory/4956-164-0x00007FF49DC50000-0x00007FF49DD4A000-memory.dmp

memory/4956-165-0x00007FF49DC50000-0x00007FF49DD4A000-memory.dmp