Malware Analysis Report

2025-06-16 02:13

Sample ID 240124-exqb8sadcn
Target 716e808961c26085303b90cedec7ae17
SHA256 4564475353ab3f0d5e9200009b3e8f0ab950dd140720a8ac3ecd054b80b9cf8f
Tags
smokeloader pub1 backdoor trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

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

4564475353ab3f0d5e9200009b3e8f0ab950dd140720a8ac3ecd054b80b9cf8f

Threat Level: Known bad

The file 716e808961c26085303b90cedec7ae17 was found to be: Known bad.

Malicious Activity Summary

smokeloader pub1 backdoor trojan

SmokeLoader

Deletes itself

Executes dropped EXE

Program crash

Unsigned PE

Checks SCSI registry key(s)

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Uses Task Scheduler COM API

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-24 04:19

Signatures

Unsigned PE

Description Indicator Process Target
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Analysis: behavioral1

Detonation Overview

Submitted

2024-01-24 04:19

Reported

2024-01-24 04:22

Platform

win7-20231129-en

Max time kernel

149s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\716e808961c26085303b90cedec7ae17.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Deletes itself

Description Indicator Process Target
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Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\swdchwb 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\716e808961c26085303b90cedec7ae17.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\716e808961c26085303b90cedec7ae17.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\716e808961c26085303b90cedec7ae17.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Roaming\swdchwb N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Roaming\swdchwb N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Roaming\swdchwb N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\716e808961c26085303b90cedec7ae17.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\716e808961c26085303b90cedec7ae17.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\swdchwb N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2632 wrote to memory of 2668 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Roaming\swdchwb
PID 2632 wrote to memory of 2668 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Roaming\swdchwb
PID 2632 wrote to memory of 2668 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Roaming\swdchwb
PID 2632 wrote to memory of 2668 N/A C:\Windows\system32\taskeng.exe C:\Users\Admin\AppData\Roaming\swdchwb

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\716e808961c26085303b90cedec7ae17.exe

"C:\Users\Admin\AppData\Local\Temp\716e808961c26085303b90cedec7ae17.exe"

C:\Windows\system32\taskeng.exe

taskeng.exe {B017B149-2C02-4416-BDD6-678B0C25C11F} S-1-5-21-3627615824-4061627003-3019543961-1000:SCFGBRBT\Admin:Interactive:[1]

C:\Users\Admin\AppData\Roaming\swdchwb

C:\Users\Admin\AppData\Roaming\swdchwb

Network

Country Destination Domain Proto
US 8.8.8.8:53 aucmoney.com udp
US 8.8.8.8:53 thegymmum.com udp
US 8.8.8.8:53 atvcampingtrips.com udp
US 8.8.8.8:53 kuapakualaman.com udp
US 8.8.8.8:53 renatazarazua.com udp
US 8.8.8.8:53 nasufmutlu.com udp

Files

memory/1364-2-0x00000000001B0000-0x00000000001B9000-memory.dmp

memory/1364-1-0x00000000002B0000-0x00000000003B0000-memory.dmp

memory/1364-3-0x0000000000400000-0x0000000002CB4000-memory.dmp

memory/1372-4-0x0000000002A20000-0x0000000002A36000-memory.dmp

memory/1364-5-0x0000000000400000-0x0000000002CB4000-memory.dmp

C:\Users\Admin\AppData\Roaming\swdchwb

MD5 716e808961c26085303b90cedec7ae17
SHA1 9d4c5dc49c0d24e244090f38a87af186163fcd14
SHA256 4564475353ab3f0d5e9200009b3e8f0ab950dd140720a8ac3ecd054b80b9cf8f
SHA512 57f0ae8d7dba69f0464e92cd206098a55c31e271204fdf6fd812c90fcbadb116df79b2ca26add306208ffbff768871c659e28d81b79f8a26d5220d5a86dc05f1

C:\Users\Admin\AppData\Roaming\swdchwb

MD5 39599015feebc899fb91b23eb1944f0f
SHA1 996e0a4abc8573c520c5ffe6bd7df9294f5e9d3b
SHA256 ac7576849c2a80252a1aee6978cb15e99539c39d7e26c29b60532ed6c6780813
SHA512 78c7d1cd9d7c2a7ed5fb1bccf646783631925b35d0ff7a43ec7df9357d8d0a19258e031fb16d9838dcd1d965821150d1f32b872cb91cfa51b5b99958f19a4ade

memory/2668-14-0x00000000002D0000-0x00000000003D0000-memory.dmp

memory/2668-15-0x0000000000400000-0x0000000002CB4000-memory.dmp

memory/1372-16-0x0000000002A40000-0x0000000002A56000-memory.dmp

memory/2668-17-0x0000000000400000-0x0000000002CB4000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-24 04:19

Reported

2024-01-24 04:22

Platform

win10v2004-20231222-en

Max time kernel

110s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\716e808961c26085303b90cedec7ae17.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Deletes itself

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

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\bjjggas 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\716e808961c26085303b90cedec7ae17.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\716e808961c26085303b90cedec7ae17.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\716e808961c26085303b90cedec7ae17.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Roaming\bjjggas N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Roaming\bjjggas N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Roaming\bjjggas N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\716e808961c26085303b90cedec7ae17.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\716e808961c26085303b90cedec7ae17.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\bjjggas 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

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\716e808961c26085303b90cedec7ae17.exe

"C:\Users\Admin\AppData\Local\Temp\716e808961c26085303b90cedec7ae17.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2304 -ip 2304

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2304 -s 368

C:\Users\Admin\AppData\Roaming\bjjggas

C:\Users\Admin\AppData\Roaming\bjjggas

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 3624 -ip 3624

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3624 -s 372

Network

Country Destination Domain Proto
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 aucmoney.com udp
US 8.8.8.8:53 thegymmum.com udp
US 8.8.8.8:53 atvcampingtrips.com udp
US 8.8.8.8:53 kuapakualaman.com udp
US 8.8.8.8:53 renatazarazua.com udp
US 8.8.8.8:53 nasufmutlu.com udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 173.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp

Files

memory/2304-2-0x0000000002F60000-0x0000000002F69000-memory.dmp

memory/2304-1-0x0000000002F90000-0x0000000003090000-memory.dmp

memory/2304-3-0x0000000000400000-0x0000000002CB4000-memory.dmp

memory/3432-4-0x0000000000830000-0x0000000000846000-memory.dmp

memory/2304-7-0x0000000000400000-0x0000000002CB4000-memory.dmp

C:\Users\Admin\AppData\Roaming\bjjggas

MD5 716e808961c26085303b90cedec7ae17
SHA1 9d4c5dc49c0d24e244090f38a87af186163fcd14
SHA256 4564475353ab3f0d5e9200009b3e8f0ab950dd140720a8ac3ecd054b80b9cf8f
SHA512 57f0ae8d7dba69f0464e92cd206098a55c31e271204fdf6fd812c90fcbadb116df79b2ca26add306208ffbff768871c659e28d81b79f8a26d5220d5a86dc05f1

memory/3624-14-0x0000000003000000-0x0000000003100000-memory.dmp

memory/3624-15-0x0000000000400000-0x0000000002CB4000-memory.dmp

memory/3432-16-0x0000000002920000-0x0000000002936000-memory.dmp

memory/3624-19-0x0000000000400000-0x0000000002CB4000-memory.dmp