Malware Analysis Report

2024-12-08 00:47

Sample ID 231225-3kc35sabb5
Target 4382ba1ba4ef6706728111964b5d2514
SHA256 a2d58f2c37790969f079091835fec1595e43c8c082d58f45e11277a2223342d7
Tags
smokeloader pub3 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

a2d58f2c37790969f079091835fec1595e43c8c082d58f45e11277a2223342d7

Threat Level: Known bad

The file 4382ba1ba4ef6706728111964b5d2514 was found to be: Known bad.

Malicious Activity Summary

smokeloader pub3 backdoor trojan

SmokeLoader

Deletes itself

Loads dropped DLL

Program crash

Unsigned PE

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Checks SCSI registry key(s)

Suspicious behavior: EnumeratesProcesses

Uses Task Scheduler COM API

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-25 23:33

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-25 23:33

Reported

2024-01-02 04:03

Platform

win7-20231215-en

Max time kernel

151s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4382ba1ba4ef6706728111964b5d2514.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Deletes itself

Description Indicator Process Target
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Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\4382ba1ba4ef6706728111964b5d2514.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\4382ba1ba4ef6706728111964b5d2514.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\4382ba1ba4ef6706728111964b5d2514.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\4382ba1ba4ef6706728111964b5d2514.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\4382ba1ba4ef6706728111964b5d2514.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\4382ba1ba4ef6706728111964b5d2514.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\4382ba1ba4ef6706728111964b5d2514.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4382ba1ba4ef6706728111964b5d2514.exe

"C:\Users\Admin\AppData\Local\Temp\4382ba1ba4ef6706728111964b5d2514.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 conceitosseg.com udp
US 8.8.8.8:53 integrasidata.com udp
SG 172.104.187.4:80 integrasidata.com tcp
US 8.8.8.8:53 ozentekstil.com udp
TR 89.19.30.75:80 ozentekstil.com tcp
US 8.8.8.8:53 finbelportal.com udp
US 8.8.8.8:53 telanganadigital.com udp
US 192.64.119.13:80 telanganadigital.com tcp
US 8.8.8.8:53 www.telanganadigital.com udp
DE 91.195.240.19:80 www.telanganadigital.com tcp

Files

memory/2028-1-0x00000000005F0000-0x00000000006F0000-memory.dmp

memory/2028-3-0x0000000000220000-0x0000000000229000-memory.dmp

memory/2028-4-0x0000000000400000-0x000000000046E000-memory.dmp

\Users\Admin\AppData\Local\Temp\CC4F.tmp

MD5 d124f55b9393c976963407dff51ffa79
SHA1 2c7bbedd79791bfb866898c85b504186db610b5d
SHA256 ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef
SHA512 278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

memory/2028-8-0x0000000000400000-0x000000000046E000-memory.dmp

memory/1312-7-0x0000000002AD0000-0x0000000002AE5000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-25 23:33

Reported

2024-01-02 04:03

Platform

win10v2004-20231215-en

Max time kernel

108s

Max time network

109s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4382ba1ba4ef6706728111964b5d2514.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Deletes itself

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

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\4382ba1ba4ef6706728111964b5d2514.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\4382ba1ba4ef6706728111964b5d2514.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\4382ba1ba4ef6706728111964b5d2514.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\4382ba1ba4ef6706728111964b5d2514.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\4382ba1ba4ef6706728111964b5d2514.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\4382ba1ba4ef6706728111964b5d2514.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\4382ba1ba4ef6706728111964b5d2514.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

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\4382ba1ba4ef6706728111964b5d2514.exe

"C:\Users\Admin\AppData\Local\Temp\4382ba1ba4ef6706728111964b5d2514.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3580 -ip 3580

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3580 -s 396

Network

Country Destination Domain Proto
US 8.8.8.8:53 148.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 8.8.8.8:53 194.178.17.96.in-addr.arpa udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 23.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 41.110.16.96.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 59.128.231.4.in-addr.arpa udp
US 8.8.8.8:53 conceitosseg.com udp
US 8.8.8.8:53 integrasidata.com udp
SG 172.104.187.4:80 integrasidata.com tcp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 4.187.104.172.in-addr.arpa udp
US 8.8.8.8:53 ozentekstil.com udp
TR 89.19.30.75:80 ozentekstil.com tcp
US 8.8.8.8:53 finbelportal.com udp
US 8.8.8.8:53 telanganadigital.com udp
US 8.8.8.8:53 75.30.19.89.in-addr.arpa udp
US 192.64.119.13:80 telanganadigital.com tcp
US 8.8.8.8:53 www.telanganadigital.com udp
DE 91.195.240.19:80 www.telanganadigital.com tcp
US 8.8.8.8:53 13.119.64.192.in-addr.arpa udp
US 8.8.8.8:53 19.240.195.91.in-addr.arpa udp
US 8.8.8.8:53 104.241.123.92.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 176.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 81.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 174.178.17.96.in-addr.arpa udp
GB 88.221.135.81:80 tcp
GB 88.221.135.81:80 tcp
N/A 20.223.35.26:443 tcp
GB 88.221.135.81:80 tcp
US 8.8.8.8:53 udp
N/A 52.111.236.23:443 tcp
GB 88.221.135.81:80 tcp
GB 88.221.135.81:80 tcp
GB 88.221.135.81:80 tcp
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GB 88.221.135.81:80 tcp
GB 88.221.135.81:80 tcp
GB 88.221.135.81:80 tcp
GB 88.221.135.81:80 tcp
GB 88.221.135.81:80 tcp
GB 88.221.135.81:80 tcp
GB 88.221.135.81:80 tcp

Files

memory/3580-1-0x0000000000610000-0x0000000000710000-memory.dmp

memory/3580-4-0x0000000000400000-0x000000000046E000-memory.dmp

memory/3580-2-0x00000000021B0000-0x00000000021B9000-memory.dmp

memory/3520-8-0x00000000032D0000-0x00000000032E5000-memory.dmp

memory/3580-11-0x0000000000400000-0x000000000046E000-memory.dmp