Malware Analysis Report

2025-08-11 06:18

Sample ID 230415-kg5d4sfa91
Target 828bdd40bebbb1ff9d1524b539a9f592619b4be68e65e6c70a0579f364fb9a49
SHA256 828bdd40bebbb1ff9d1524b539a9f592619b4be68e65e6c70a0579f364fb9a49
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

828bdd40bebbb1ff9d1524b539a9f592619b4be68e65e6c70a0579f364fb9a49

Threat Level: Known bad

The file 828bdd40bebbb1ff9d1524b539a9f592619b4be68e65e6c70a0579f364fb9a49 was found to be: Known bad.

Malicious Activity Summary

rhadamanthys smokeloader pub4 backdoor collection stealer trojan

SmokeLoader

Detect rhadamanthys stealer shellcode

Rhadamanthys

Downloads MZ/PE file

Executes dropped EXE

Accesses Microsoft Outlook profiles

Program crash

Suspicious use of AdjustPrivilegeToken

outlook_win_path

Suspicious behavior: MapViewOfSection

Suspicious behavior: EnumeratesProcesses

Checks processor information in registry

Uses Task Scheduler COM API

outlook_office_path

Suspicious use of WriteProcessMemory

Suspicious behavior: GetForegroundWindowSpam

Checks SCSI registry key(s)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-04-15 08:35

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-04-15 08:35

Reported

2023-04-15 08:37

Platform

win10v2004-20230220-en

Max time kernel

151s

Max time network

145s

Command Line

"C:\Users\Admin\AppData\Local\Temp\828bdd40bebbb1ff9d1524b539a9f592619b4be68e65e6c70a0579f364fb9a49.exe"

Signatures

Detect rhadamanthys stealer shellcode

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

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\4C2C.exe N/A

Accesses Microsoft Outlook profiles

collection
Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook C:\Windows\system32\dllhost.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook C:\Windows\system32\dllhost.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook C:\Windows\system32\dllhost.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\10.0\Outlook\Profiles\Outlook C:\Windows\system32\dllhost.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\11.0\Outlook\Profiles\Outlook C:\Windows\system32\dllhost.exe N/A
Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\12.0\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\4C2C.exe

Checks SCSI registry key(s)

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\828bdd40bebbb1ff9d1524b539a9f592619b4be68e65e6c70a0579f364fb9a49.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\828bdd40bebbb1ff9d1524b539a9f592619b4be68e65e6c70a0579f364fb9a49.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\828bdd40bebbb1ff9d1524b539a9f592619b4be68e65e6c70a0579f364fb9a49.exe N/A

Checks processor information in registry

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

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\828bdd40bebbb1ff9d1524b539a9f592619b4be68e65e6c70a0579f364fb9a49.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\828bdd40bebbb1ff9d1524b539a9f592619b4be68e65e6c70a0579f364fb9a49.exe N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

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\828bdd40bebbb1ff9d1524b539a9f592619b4be68e65e6c70a0579f364fb9a49.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 768 wrote to memory of 1528 N/A N/A C:\Users\Admin\AppData\Local\Temp\4C2C.exe
PID 768 wrote to memory of 1528 N/A N/A C:\Users\Admin\AppData\Local\Temp\4C2C.exe
PID 768 wrote to memory of 1528 N/A N/A C:\Users\Admin\AppData\Local\Temp\4C2C.exe
PID 1528 wrote to memory of 4772 N/A C:\Users\Admin\AppData\Local\Temp\4C2C.exe C:\Windows\system32\dllhost.exe
PID 1528 wrote to memory of 4772 N/A C:\Users\Admin\AppData\Local\Temp\4C2C.exe C:\Windows\system32\dllhost.exe
PID 1528 wrote to memory of 4772 N/A C:\Users\Admin\AppData\Local\Temp\4C2C.exe C:\Windows\system32\dllhost.exe
PID 1528 wrote to memory of 4772 N/A C:\Users\Admin\AppData\Local\Temp\4C2C.exe C:\Windows\system32\dllhost.exe

Uses Task Scheduler COM API

persistence

outlook_office_path

Description Indicator Process Target
Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\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-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook C:\Windows\system32\dllhost.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\828bdd40bebbb1ff9d1524b539a9f592619b4be68e65e6c70a0579f364fb9a49.exe

"C:\Users\Admin\AppData\Local\Temp\828bdd40bebbb1ff9d1524b539a9f592619b4be68e65e6c70a0579f364fb9a49.exe"

C:\Users\Admin\AppData\Local\Temp\4C2C.exe

C:\Users\Admin\AppData\Local\Temp\4C2C.exe

C:\Windows\system32\dllhost.exe

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

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1528 -ip 1528

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1528 -s 696

Network

Country Destination Domain Proto
US 209.197.3.8:80 tcp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 33.146.190.20.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 209.197.3.8:80 tcp
US 8.8.8.8:53 aapu.at udp
KR 211.171.233.129:80 aapu.at tcp
US 8.8.8.8:53 129.233.171.211.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 40.77.2.164:443 tcp
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
KR 211.171.233.129:80 aapu.at tcp
KR 211.171.233.129:80 aapu.at tcp
US 13.89.179.9:443 tcp
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
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 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
IT 179.43.155.247:80 179.43.155.247 tcp
US 8.8.8.8:53 2.36.159.162.in-addr.arpa udp
KR 211.171.233.129:80 aapu.at tcp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 45.8.109.52.in-addr.arpa udp
US 8.8.8.8:53 247.155.43.179.in-addr.arpa udp
US 8.8.8.8:53 aapu.at udp
KR 211.171.233.126:80 aapu.at tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 93.184.220.29:80 tcp
KR 211.171.233.126:80 aapu.at tcp
US 8.8.8.8:53 126.233.171.211.in-addr.arpa udp
KR 211.171.233.126:80 aapu.at tcp
KR 211.171.233.126:80 aapu.at tcp
NL 173.223.113.164:443 tcp
NL 173.223.113.131:80 tcp
US 204.79.197.203:80 tcp
KR 211.171.233.126:80 aapu.at tcp
KR 211.171.233.126:80 aapu.at tcp
KR 211.171.233.126:80 aapu.at tcp
KR 211.171.233.126:80 aapu.at tcp
KR 211.171.233.126:80 aapu.at tcp
KR 211.171.233.126:80 aapu.at tcp
KR 211.171.233.126:80 aapu.at tcp
KR 211.171.233.126:80 aapu.at tcp
KR 211.171.233.126:80 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 211.171.233.126:80 aapu.at tcp
KR 211.171.233.126:80 aapu.at tcp
PA 179.43.142.201:80 179.43.142.201 tcp
KR 211.171.233.126:80 aapu.at tcp
KR 211.171.233.126:80 aapu.at tcp

Files

memory/2652-134-0x00000000008C0000-0x00000000008C9000-memory.dmp

memory/768-135-0x0000000000C70000-0x0000000000C86000-memory.dmp

memory/2652-136-0x0000000000400000-0x00000000007FD000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\4C2C.exe

MD5 c7013845630a13cd1161a9bce5482f67
SHA1 8f65a5509972092bb3087ac120c2cc741a41ea0b
SHA256 076a0fb7ebf20a100ef850835a9cfe79d33e6dc797b78d267f92982ec75807f3
SHA512 b4b6513c970a32b8459b0576ed81cf0f59c833ec9f311fd79a59a787ad9d514562f41916014e9a42f6e2a24ef6b458ab268727b5c906191c98bf758b7196dde5

C:\Users\Admin\AppData\Local\Temp\4C2C.exe

MD5 c7013845630a13cd1161a9bce5482f67
SHA1 8f65a5509972092bb3087ac120c2cc741a41ea0b
SHA256 076a0fb7ebf20a100ef850835a9cfe79d33e6dc797b78d267f92982ec75807f3
SHA512 b4b6513c970a32b8459b0576ed81cf0f59c833ec9f311fd79a59a787ad9d514562f41916014e9a42f6e2a24ef6b458ab268727b5c906191c98bf758b7196dde5

memory/1528-147-0x00000000009B0000-0x00000000009DE000-memory.dmp

memory/1528-148-0x0000000000400000-0x000000000080F000-memory.dmp

memory/1528-151-0x0000000002480000-0x000000000249C000-memory.dmp

memory/1528-152-0x0000000002480000-0x000000000249C000-memory.dmp

memory/1528-153-0x0000000000840000-0x0000000000842000-memory.dmp

memory/1528-154-0x0000000002480000-0x000000000249C000-memory.dmp

memory/4772-155-0x00000201ECDB0000-0x00000201ECDB1000-memory.dmp

memory/1528-156-0x0000000000840000-0x0000000000843000-memory.dmp

memory/4772-158-0x00007FF45CF10000-0x00007FF45D00A000-memory.dmp

memory/4772-157-0x00000201ED0C0000-0x00000201ED0C7000-memory.dmp

memory/4772-159-0x00007FF45CF10000-0x00007FF45D00A000-memory.dmp

memory/1528-160-0x0000000000400000-0x000000000080F000-memory.dmp

memory/1528-161-0x0000000002480000-0x000000000249C000-memory.dmp

memory/4772-162-0x00007FF45CF10000-0x00007FF45D00A000-memory.dmp

memory/4772-163-0x00007FF45CF10000-0x00007FF45D00A000-memory.dmp

memory/4772-164-0x00007FF45CF10000-0x00007FF45D00A000-memory.dmp

memory/4772-165-0x00007FF45CF10000-0x00007FF45D00A000-memory.dmp