Malware Analysis Report

2024-12-08 00:46

Sample ID 231228-2zfbdahbfl
Target fe8540de5f12df11086e1b626e426fda
SHA256 aefec444c7481f96021203a4e67af954092d09c31eb7dcf386eeb156e12d70b3
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

aefec444c7481f96021203a4e67af954092d09c31eb7dcf386eeb156e12d70b3

Threat Level: Known bad

The file fe8540de5f12df11086e1b626e426fda was found to be: Known bad.

Malicious Activity Summary

smokeloader pub3 backdoor trojan

SmokeLoader

Deletes itself

Loads dropped DLL

Unsigned PE

Program crash

Checks SCSI registry key(s)

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Uses Task Scheduler COM API

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-28 23:00

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-28 23:00

Reported

2024-01-03 16:48

Platform

win7-20231215-en

Max time kernel

149s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\fe8540de5f12df11086e1b626e426fda.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\fe8540de5f12df11086e1b626e426fda.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\fe8540de5f12df11086e1b626e426fda.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\fe8540de5f12df11086e1b626e426fda.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\fe8540de5f12df11086e1b626e426fda.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\fe8540de5f12df11086e1b626e426fda.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\fe8540de5f12df11086e1b626e426fda.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\fe8540de5f12df11086e1b626e426fda.exe

"C:\Users\Admin\AppData\Local\Temp\fe8540de5f12df11086e1b626e426fda.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

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

MD5 d124f55b9393c976963407dff51ffa79
SHA1 2c7bbedd79791bfb866898c85b504186db610b5d
SHA256 ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef
SHA512 278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

memory/2028-4-0x0000000000580000-0x0000000000680000-memory.dmp

memory/2028-5-0x0000000000220000-0x0000000000229000-memory.dmp

memory/2028-6-0x0000000000400000-0x0000000000468000-memory.dmp

memory/1200-7-0x00000000029F0000-0x0000000002A05000-memory.dmp

memory/2028-8-0x0000000000400000-0x0000000000468000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-28 23:00

Reported

2024-01-03 16:49

Platform

win10v2004-20231215-en

Max time kernel

91s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\fe8540de5f12df11086e1b626e426fda.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\fe8540de5f12df11086e1b626e426fda.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\fe8540de5f12df11086e1b626e426fda.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\fe8540de5f12df11086e1b626e426fda.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\fe8540de5f12df11086e1b626e426fda.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\fe8540de5f12df11086e1b626e426fda.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\fe8540de5f12df11086e1b626e426fda.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\fe8540de5f12df11086e1b626e426fda.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\fe8540de5f12df11086e1b626e426fda.exe

"C:\Users\Admin\AppData\Local\Temp\fe8540de5f12df11086e1b626e426fda.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 3496 -ip 3496

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3496 -s 376

Network

Country Destination Domain Proto
US 8.8.8.8:53 3.181.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 138.91.171.81:80 tcp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 205.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 195.233.44.23.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.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 ozentekstil.com udp
TR 89.19.30.75:80 ozentekstil.com tcp
US 8.8.8.8:53 4.187.104.172.in-addr.arpa udp
US 8.8.8.8:53 finbelportal.com udp
US 8.8.8.8:53 telanganadigital.com udp
US 8.8.8.8:53 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 udp
US 8.8.8.8:53 13.119.64.192.in-addr.arpa udp
US 8.8.8.8:53 udp
US 8.8.8.8:53 udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
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 19.240.195.91.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 16.234.44.23.in-addr.arpa udp
US 8.8.8.8:53 183.1.37.23.in-addr.arpa udp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 208.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 202.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 172.178.17.96.in-addr.arpa udp
GB 88.221.134.64:80 tcp
GB 88.221.134.64:80 tcp
US 52.111.229.43:443 tcp
GB 88.221.134.64:80 tcp
GB 88.221.134.64:80 tcp
GB 88.221.134.64:80 tcp
GB 88.221.134.64:80 tcp
GB 88.221.134.64:80 tcp
GB 96.17.178.202:80 tcp
US 8.8.8.8:53 udp
GB 96.17.178.202:80 tcp
GB 96.17.178.202:80 tcp
US 8.8.8.8:53 udp
US 8.8.8.8:53 udp
GB 88.221.134.64:80 tcp
GB 88.221.134.18:80 tcp
GB 88.221.134.18:80 tcp
US 8.8.8.8:53 udp
GB 96.17.178.202:80 tcp
GB 96.17.178.202:80 tcp
GB 88.221.134.64:80 tcp
GB 88.221.134.64:80 tcp
GB 88.221.134.64:80 tcp
GB 88.221.134.64:80 tcp
GB 88.221.134.64:80 tcp
GB 88.221.134.64:80 tcp
US 204.79.197.200:443 tcp
US 204.79.197.200:443 tcp
US 204.79.197.200:443 tcp
US 204.79.197.200:443 tcp
US 204.79.197.200:443 tcp
US 8.8.8.8:53 udp

Files

memory/3496-3-0x0000000000400000-0x0000000000468000-memory.dmp

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

MD5 be03d12416df60de24776c42dc7ce362
SHA1 b251a0aafc037840fedbcc466a3a3db3dd001c64
SHA256 b5481a1339188eab6a974afc595b7f7c300309497675b5622d8fdd6c6b657477
SHA512 ddf5e51cc26b0cadaa57799f1b1a4d6aa8ad75ad250281753b614fd7b77cc857e35d92082e9ca0745be948d971b31eb348235667f01f15caa16c44e859ba8104

memory/3496-2-0x00000000021B0000-0x00000000021B9000-memory.dmp

memory/3496-1-0x00000000005B0000-0x00000000006B0000-memory.dmp

memory/3460-8-0x0000000002250000-0x0000000002265000-memory.dmp

memory/3496-11-0x0000000000400000-0x0000000000468000-memory.dmp