Malware Analysis Report

2025-08-10 12:29

Sample ID 230415-z35pbshc7t
Target 76dd10a61c9c5b361d147bb841980200cc75fc1086c5db7291fc2461ed9e5292
SHA256 76dd10a61c9c5b361d147bb841980200cc75fc1086c5db7291fc2461ed9e5292
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

76dd10a61c9c5b361d147bb841980200cc75fc1086c5db7291fc2461ed9e5292

Threat Level: Known bad

The file 76dd10a61c9c5b361d147bb841980200cc75fc1086c5db7291fc2461ed9e5292 was found to be: Known bad.

Malicious Activity Summary

rhadamanthys smokeloader pub4 backdoor collection stealer trojan

SmokeLoader

Rhadamanthys

Detect rhadamanthys stealer shellcode

Downloads MZ/PE file

Executes dropped EXE

Accesses Microsoft Outlook profiles

Program crash

Checks processor information in registry

Suspicious behavior: GetForegroundWindowSpam

outlook_win_path

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Checks SCSI registry key(s)

Suspicious behavior: MapViewOfSection

Uses Task Scheduler COM API

outlook_office_path

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-04-15 21:15

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-04-15 21:15

Reported

2023-04-15 21:18

Platform

win10v2004-20230220-en

Max time kernel

150s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\76dd10a61c9c5b361d147bb841980200cc75fc1086c5db7291fc2461ed9e5292.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\1F6F.exe N/A

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\11.0\Outlook\Profiles\Outlook C:\Windows\system32\dllhost.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\12.0\Outlook\Profiles\Outlook C:\Windows\system32\dllhost.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook C:\Windows\system32\dllhost.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook C:\Windows\system32\dllhost.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook C:\Windows\system32\dllhost.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Office\10.0\Outlook\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\1F6F.exe

Checks SCSI registry key(s)

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\76dd10a61c9c5b361d147bb841980200cc75fc1086c5db7291fc2461ed9e5292.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\76dd10a61c9c5b361d147bb841980200cc75fc1086c5db7291fc2461ed9e5292.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\76dd10a61c9c5b361d147bb841980200cc75fc1086c5db7291fc2461ed9e5292.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\76dd10a61c9c5b361d147bb841980200cc75fc1086c5db7291fc2461ed9e5292.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\76dd10a61c9c5b361d147bb841980200cc75fc1086c5db7291fc2461ed9e5292.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\76dd10a61c9c5b361d147bb841980200cc75fc1086c5db7291fc2461ed9e5292.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 3144 wrote to memory of 4100 N/A N/A C:\Users\Admin\AppData\Local\Temp\1F6F.exe
PID 3144 wrote to memory of 4100 N/A N/A C:\Users\Admin\AppData\Local\Temp\1F6F.exe
PID 3144 wrote to memory of 4100 N/A N/A C:\Users\Admin\AppData\Local\Temp\1F6F.exe
PID 4100 wrote to memory of 3968 N/A C:\Users\Admin\AppData\Local\Temp\1F6F.exe C:\Windows\system32\dllhost.exe
PID 4100 wrote to memory of 3968 N/A C:\Users\Admin\AppData\Local\Temp\1F6F.exe C:\Windows\system32\dllhost.exe
PID 4100 wrote to memory of 3968 N/A C:\Users\Admin\AppData\Local\Temp\1F6F.exe C:\Windows\system32\dllhost.exe
PID 4100 wrote to memory of 3968 N/A C:\Users\Admin\AppData\Local\Temp\1F6F.exe C:\Windows\system32\dllhost.exe

Uses Task Scheduler COM API

persistence

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\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-1-5-21-1529757233-3489015626-3409890339-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook C:\Windows\system32\dllhost.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\76dd10a61c9c5b361d147bb841980200cc75fc1086c5db7291fc2461ed9e5292.exe

"C:\Users\Admin\AppData\Local\Temp\76dd10a61c9c5b361d147bb841980200cc75fc1086c5db7291fc2461ed9e5292.exe"

C:\Users\Admin\AppData\Local\Temp\1F6F.exe

C:\Users\Admin\AppData\Local\Temp\1F6F.exe

C:\Windows\system32\dllhost.exe

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

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 4100 -ip 4100

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 4100 -s 700

Network

Country Destination Domain Proto
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 76.38.195.152.in-addr.arpa udp
US 8.8.8.8:53 123.108.74.40.in-addr.arpa udp
US 8.8.8.8:53 aapu.at udp
MN 203.91.116.53:80 aapu.at tcp
MN 203.91.116.53:80 aapu.at tcp
US 8.8.8.8:53 53.116.91.203.in-addr.arpa udp
MN 203.91.116.53:80 aapu.at tcp
MN 203.91.116.53:80 aapu.at tcp
MN 203.91.116.53:80 aapu.at tcp
MN 203.91.116.53:80 aapu.at tcp
MN 203.91.116.53:80 aapu.at tcp
US 40.77.2.164:443 tcp
MN 203.91.116.53:80 aapu.at tcp
MN 203.91.116.53:80 aapu.at tcp
MN 203.91.116.53:80 aapu.at tcp
MN 203.91.116.53:80 aapu.at tcp
MN 203.91.116.53:80 aapu.at tcp
MN 203.91.116.53:80 aapu.at tcp
MN 203.91.116.53:80 aapu.at tcp
MN 203.91.116.53:80 aapu.at tcp
IT 179.43.155.247:80 179.43.155.247 tcp
MN 203.91.116.53:80 aapu.at tcp
US 8.8.8.8:53 247.155.43.179.in-addr.arpa udp
MN 203.91.116.53:80 aapu.at tcp
MN 203.91.116.53:80 aapu.at tcp
MN 203.91.116.53:80 aapu.at tcp
MN 203.91.116.53:80 aapu.at tcp
MN 203.91.116.53:80 aapu.at tcp
MN 203.91.116.53:80 aapu.at tcp
MN 203.91.116.53:80 aapu.at tcp
MN 203.91.116.53:80 aapu.at tcp
MN 203.91.116.53:80 aapu.at tcp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 86.8.109.52.in-addr.arpa udp
US 8.8.8.8:53 2.36.159.162.in-addr.arpa udp
US 8.8.8.8:53 aapu.at udp
KR 210.182.29.70:80 aapu.at tcp
US 8.8.8.8:53 70.29.182.210.in-addr.arpa udp
KR 210.182.29.70:80 aapu.at tcp
NL 87.248.202.1:80 tcp
KR 210.182.29.70:80 aapu.at tcp
KR 210.182.29.70:80 aapu.at tcp
KR 210.182.29.70:80 aapu.at tcp
KR 210.182.29.70:80 aapu.at tcp
KR 210.182.29.70:80 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
KR 210.182.29.70:80 aapu.at tcp
US 8.8.8.8:53 aapu.at udp
PA 179.43.142.201:80 179.43.142.201 tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
NL 173.223.113.164:443 tcp
NL 173.223.113.131:80 tcp
US 204.79.197.203:80 tcp

Files

memory/4272-134-0x0000000000940000-0x0000000000949000-memory.dmp

memory/3144-135-0x0000000002A60000-0x0000000002A76000-memory.dmp

memory/4272-136-0x0000000000400000-0x00000000007FD000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\1F6F.exe

MD5 1af6229f3d5d95510deeb9ac7677ef64
SHA1 ced23ffb956d89ca07bcf425fe3a8f900f08ebd2
SHA256 e90b966980543f422dbee87da402b0fd5b1e2a744ad49b89e293b588d2fb1545
SHA512 e13dd65ab66c8863fb2ea23334923170bfb4a8bd1fe48fc86760d6eecc850f9e5c72bd22895f24e65cabd2bca16c4028145dc80bd1bcbf7047ee16ddd2944559

C:\Users\Admin\AppData\Local\Temp\1F6F.exe

MD5 1af6229f3d5d95510deeb9ac7677ef64
SHA1 ced23ffb956d89ca07bcf425fe3a8f900f08ebd2
SHA256 e90b966980543f422dbee87da402b0fd5b1e2a744ad49b89e293b588d2fb1545
SHA512 e13dd65ab66c8863fb2ea23334923170bfb4a8bd1fe48fc86760d6eecc850f9e5c72bd22895f24e65cabd2bca16c4028145dc80bd1bcbf7047ee16ddd2944559

memory/4100-147-0x0000000002400000-0x000000000242E000-memory.dmp

memory/4100-148-0x0000000000400000-0x000000000080F000-memory.dmp

memory/4100-151-0x0000000002430000-0x000000000244C000-memory.dmp

memory/4100-152-0x0000000002430000-0x000000000244C000-memory.dmp

memory/4100-153-0x0000000002450000-0x0000000002452000-memory.dmp

memory/4100-154-0x0000000002430000-0x000000000244C000-memory.dmp

memory/3968-155-0x00000201268F0000-0x00000201268F1000-memory.dmp

memory/4100-156-0x0000000002450000-0x0000000002453000-memory.dmp

memory/3968-157-0x0000020126A10000-0x0000020126A17000-memory.dmp

memory/3968-158-0x00007FF4654A0000-0x00007FF46559A000-memory.dmp

memory/3968-159-0x00007FF4654A0000-0x00007FF46559A000-memory.dmp

memory/4100-160-0x0000000000400000-0x000000000080F000-memory.dmp

memory/4100-161-0x0000000002430000-0x000000000244C000-memory.dmp

memory/3968-162-0x00007FF4654A0000-0x00007FF46559A000-memory.dmp

memory/3968-163-0x00007FF4654A0000-0x00007FF46559A000-memory.dmp

memory/3968-164-0x00007FF4654A0000-0x00007FF46559A000-memory.dmp

memory/3968-165-0x00007FF4654A0000-0x00007FF46559A000-memory.dmp