Malware Analysis Report

2025-08-06 00:40

Sample ID 230419-mc2tjahh55
Target 298e8a80.exe
SHA256 db14e897b3b268f92bb15f0720d4ec0c191949b660e966027cd6ec656c00cc26
Tags
smokeloader pub1 backdoor trojan rhadamanthys collection stealer
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

db14e897b3b268f92bb15f0720d4ec0c191949b660e966027cd6ec656c00cc26

Threat Level: Known bad

The file 298e8a80.exe was found to be: Known bad.

Malicious Activity Summary

smokeloader pub1 backdoor trojan rhadamanthys collection stealer

Rhadamanthys

SmokeLoader

Detect rhadamanthys stealer shellcode

Downloads MZ/PE file

Executes dropped EXE

Accesses Microsoft Outlook profiles

outlook_win_path

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

outlook_office_path

Uses Task Scheduler COM API

Suspicious behavior: GetForegroundWindowSpam

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Checks SCSI registry key(s)

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-04-19 10:20

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2023-04-19 10:20

Reported

2023-04-19 10:22

Platform

win7-20230220-en

Max time kernel

150s

Max time network

34s

Command Line

"C:\Users\Admin\AppData\Local\Temp\298e8a80.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Checks SCSI registry key(s)

Description Indicator Process Target
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\298e8a80.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\298e8a80.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\298e8a80.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\298e8a80.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\298e8a80.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\298e8a80.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\298e8a80.exe

"C:\Users\Admin\AppData\Local\Temp\298e8a80.exe"

Network

N/A

Files

memory/1728-55-0x0000000000220000-0x0000000000229000-memory.dmp

memory/1320-56-0x0000000002260000-0x0000000002276000-memory.dmp

memory/1728-57-0x0000000000400000-0x0000000002B94000-memory.dmp

memory/1320-60-0x000007FF5D9E0000-0x000007FF5D9EA000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-04-19 10:20

Reported

2023-04-19 10:22

Platform

win10v2004-20230221-en

Max time kernel

151s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\298e8a80.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\33F1.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\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
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

Checks SCSI registry key(s)

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\298e8a80.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\298e8a80.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\298e8a80.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\298e8a80.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\298e8a80.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
Token: SeShutdownPrivilege N/A N/A N/A
Token: SeCreatePagefilePrivilege N/A N/A N/A
Token: SeShutdownPrivilege N/A N/A N/A
Token: SeCreatePagefilePrivilege N/A N/A N/A
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 3172 wrote to memory of 2276 N/A N/A C:\Users\Admin\AppData\Local\Temp\33F1.exe
PID 3172 wrote to memory of 2276 N/A N/A C:\Users\Admin\AppData\Local\Temp\33F1.exe
PID 3172 wrote to memory of 2276 N/A N/A C:\Users\Admin\AppData\Local\Temp\33F1.exe
PID 2276 wrote to memory of 4316 N/A C:\Users\Admin\AppData\Local\Temp\33F1.exe C:\Windows\system32\dllhost.exe
PID 2276 wrote to memory of 4316 N/A C:\Users\Admin\AppData\Local\Temp\33F1.exe C:\Windows\system32\dllhost.exe
PID 2276 wrote to memory of 4316 N/A C:\Users\Admin\AppData\Local\Temp\33F1.exe C:\Windows\system32\dllhost.exe
PID 2276 wrote to memory of 4316 N/A C:\Users\Admin\AppData\Local\Temp\33F1.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\298e8a80.exe

"C:\Users\Admin\AppData\Local\Temp\298e8a80.exe"

C:\Users\Admin\AppData\Local\Temp\33F1.exe

C:\Users\Admin\AppData\Local\Temp\33F1.exe

C:\Windows\system32\dllhost.exe

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 176.122.125.40.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 93.184.221.240:80 tcp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 aapu.at udp
KR 58.235.189.192:80 aapu.at tcp
KR 58.235.189.192:80 aapu.at tcp
US 8.8.8.8:53 192.189.235.58.in-addr.arpa udp
KR 58.235.189.192:80 aapu.at tcp
KR 58.235.189.192:80 aapu.at tcp
KR 58.235.189.192:80 aapu.at tcp
KR 58.235.189.192:80 aapu.at tcp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 8.3.197.209.in-addr.arpa udp
KR 58.235.189.192:80 aapu.at tcp
KR 58.235.189.192:80 aapu.at tcp
KR 58.235.189.192:80 aapu.at tcp
KR 58.235.189.192:80 aapu.at tcp
KR 58.235.189.192:80 aapu.at tcp
US 20.189.173.4:443 tcp
KR 58.235.189.192:80 aapu.at tcp
KR 58.235.189.192:80 aapu.at tcp
KR 58.235.189.192:80 aapu.at tcp
IT 179.43.155.247:80 179.43.155.247 tcp
KR 58.235.189.192:80 aapu.at tcp
US 8.8.8.8:53 247.155.43.179.in-addr.arpa udp
KR 58.235.189.192:80 aapu.at tcp
KR 58.235.189.192:80 aapu.at tcp
KR 58.235.189.192:80 aapu.at tcp
KR 58.235.189.192:80 aapu.at tcp
KR 58.235.189.192:80 aapu.at tcp
KR 58.235.189.192:80 aapu.at tcp
KR 58.235.189.192:80 aapu.at tcp
KR 58.235.189.192:80 aapu.at tcp
KR 58.235.189.192:80 aapu.at tcp
KR 58.235.189.192:80 aapu.at tcp
KR 58.235.189.192:80 aapu.at tcp
US 93.184.221.240:80 tcp
US 8.8.8.8:53 233.141.123.20.in-addr.arpa udp
KR 58.235.189.192:80 aapu.at tcp
US 8.8.8.8:53 1.208.79.178.in-addr.arpa udp
KR 58.235.189.192:80 aapu.at tcp
KR 58.235.189.192:80 aapu.at tcp
PA 179.43.142.201:80 catalog.s.download.windowsupdate.com tcp
KR 58.235.189.192:80 aapu.at tcp
US 8.8.8.8:53 201.142.43.179.in-addr.arpa udp
KR 58.235.189.192:80 aapu.at tcp
PA 179.43.142.201:80 179.43.142.201 tcp
US 93.184.221.240:80 tcp
NL 173.223.113.164:443 tcp

Files

memory/748-134-0x0000000002DF0000-0x0000000002DF9000-memory.dmp

memory/3172-135-0x0000000001570000-0x0000000001586000-memory.dmp

memory/748-136-0x0000000000400000-0x0000000002B94000-memory.dmp

memory/3172-142-0x00000000032C0000-0x00000000032D0000-memory.dmp

memory/3172-143-0x00000000032C0000-0x00000000032D0000-memory.dmp

memory/3172-144-0x00000000032C0000-0x00000000032D0000-memory.dmp

memory/3172-145-0x00000000032C0000-0x00000000032D0000-memory.dmp

memory/3172-146-0x00000000032C0000-0x00000000032D0000-memory.dmp

memory/3172-147-0x00000000032C0000-0x00000000032D0000-memory.dmp

memory/3172-148-0x00000000032C0000-0x00000000032D0000-memory.dmp

memory/3172-149-0x00000000032C0000-0x00000000032D0000-memory.dmp

memory/3172-150-0x00000000032C0000-0x00000000032D0000-memory.dmp

memory/3172-151-0x00000000032C0000-0x00000000032D0000-memory.dmp

memory/3172-152-0x00000000032C0000-0x00000000032D0000-memory.dmp

memory/3172-153-0x00000000032C0000-0x00000000032D0000-memory.dmp

memory/3172-154-0x00000000032C0000-0x00000000032D0000-memory.dmp

memory/3172-155-0x00000000032C0000-0x00000000032D0000-memory.dmp

memory/3172-156-0x00000000032C0000-0x00000000032D0000-memory.dmp

memory/3172-157-0x00000000032C0000-0x00000000032D0000-memory.dmp

memory/3172-158-0x00000000032E0000-0x00000000032F0000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\33F1.exe

MD5 1443c5bbc58a9283df31c026ec145fe8
SHA1 0461d42ac46ab778e2b64da3470b5421cef258b4
SHA256 a865ff24fa16c3e701d9b08ca7309793cb1980eefde88a31e94454c74da90d20
SHA512 764d69cb407d7d7cab8ae7bc417df4dfee3465de6fbc29cc311b94e45b1558c147049fff448b8a9bb6a4a164f510105c69d293d358f9b2b89da6aeb26ada242a

C:\Users\Admin\AppData\Local\Temp\33F1.exe

MD5 1443c5bbc58a9283df31c026ec145fe8
SHA1 0461d42ac46ab778e2b64da3470b5421cef258b4
SHA256 a865ff24fa16c3e701d9b08ca7309793cb1980eefde88a31e94454c74da90d20
SHA512 764d69cb407d7d7cab8ae7bc417df4dfee3465de6fbc29cc311b94e45b1558c147049fff448b8a9bb6a4a164f510105c69d293d358f9b2b89da6aeb26ada242a

memory/2276-164-0x0000000002D10000-0x0000000002D3E000-memory.dmp

memory/2276-165-0x0000000000400000-0x0000000002BA4000-memory.dmp

memory/2276-168-0x0000000002D40000-0x0000000002D5C000-memory.dmp

memory/2276-169-0x0000000002D40000-0x0000000002D5C000-memory.dmp

memory/2276-170-0x0000000002CF0000-0x0000000002CF2000-memory.dmp

memory/2276-171-0x0000000002D40000-0x0000000002D5C000-memory.dmp

memory/4316-172-0x0000019A6C490000-0x0000019A6C491000-memory.dmp

memory/4316-174-0x0000019A6C7A0000-0x0000019A6C7A7000-memory.dmp

memory/2276-173-0x0000000002CF0000-0x0000000002CF3000-memory.dmp

memory/4316-175-0x00007FF429470000-0x00007FF42956A000-memory.dmp

memory/4316-176-0x00007FF429470000-0x00007FF42956A000-memory.dmp

memory/2276-177-0x0000000000400000-0x0000000002BA4000-memory.dmp

memory/2276-178-0x0000000002D40000-0x0000000002D5C000-memory.dmp

memory/4316-179-0x00007FF429470000-0x00007FF42956A000-memory.dmp

memory/4316-180-0x00007FF429470000-0x00007FF42956A000-memory.dmp

memory/4316-181-0x00007FF429470000-0x00007FF42956A000-memory.dmp

memory/4316-182-0x00007FF429470000-0x00007FF42956A000-memory.dmp

memory/4316-183-0x00007FF429470000-0x00007FF42956A000-memory.dmp

memory/3172-184-0x00000000032C0000-0x00000000032D0000-memory.dmp

memory/3172-185-0x0000000003280000-0x0000000003290000-memory.dmp

memory/3172-186-0x00000000032C0000-0x00000000032D0000-memory.dmp

memory/3172-187-0x00000000032C0000-0x00000000032D0000-memory.dmp

memory/3172-188-0x00000000032C0000-0x00000000032D0000-memory.dmp

memory/3172-189-0x00000000032C0000-0x00000000032D0000-memory.dmp

memory/3172-190-0x00000000032C0000-0x00000000032D0000-memory.dmp

memory/3172-191-0x00000000032C0000-0x00000000032D0000-memory.dmp

memory/3172-192-0x00000000032C0000-0x00000000032D0000-memory.dmp

memory/3172-193-0x00000000032C0000-0x00000000032D0000-memory.dmp

memory/3172-194-0x00000000032C0000-0x00000000032D0000-memory.dmp

memory/3172-195-0x00000000032C0000-0x00000000032D0000-memory.dmp

memory/3172-196-0x00000000032C0000-0x00000000032D0000-memory.dmp

memory/3172-197-0x00000000032C0000-0x00000000032D0000-memory.dmp

memory/3172-198-0x00000000032C0000-0x00000000032D0000-memory.dmp

memory/3172-199-0x00000000032C0000-0x00000000032D0000-memory.dmp

memory/3172-200-0x00000000032C0000-0x00000000032D0000-memory.dmp

memory/3172-201-0x0000000003280000-0x0000000003290000-memory.dmp

memory/3172-202-0x0000000003280000-0x0000000003290000-memory.dmp

memory/3172-203-0x0000000003280000-0x0000000003290000-memory.dmp

memory/3172-204-0x0000000003280000-0x0000000003290000-memory.dmp

memory/3172-205-0x0000000003280000-0x0000000003290000-memory.dmp

memory/3172-206-0x0000000003280000-0x0000000003290000-memory.dmp