Malware Analysis Report

2024-12-08 00:47

Sample ID 231228-efdl4segcr
Target c19897232ca2a5a8336be39d46ed5180
SHA256 a92252b3b004f08298b2a62b3df61d35b35739883b53fd83a97ca2f074a3bcc5
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

a92252b3b004f08298b2a62b3df61d35b35739883b53fd83a97ca2f074a3bcc5

Threat Level: Known bad

The file c19897232ca2a5a8336be39d46ed5180 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

Uses Task Scheduler COM API

Checks SCSI registry key(s)

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-12-28 03:52

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-28 03:52

Reported

2023-12-29 15:06

Platform

win7-20231215-en

Max time kernel

148s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c19897232ca2a5a8336be39d46ed5180.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\c19897232ca2a5a8336be39d46ed5180.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\c19897232ca2a5a8336be39d46ed5180.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c19897232ca2a5a8336be39d46ed5180.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c19897232ca2a5a8336be39d46ed5180.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c19897232ca2a5a8336be39d46ed5180.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c19897232ca2a5a8336be39d46ed5180.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\c19897232ca2a5a8336be39d46ed5180.exe

"C:\Users\Admin\AppData\Local\Temp\c19897232ca2a5a8336be39d46ed5180.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/1300-6-0x0000000000400000-0x000000000046C000-memory.dmp

memory/1300-5-0x00000000003A0000-0x00000000003A9000-memory.dmp

memory/1300-4-0x0000000000230000-0x0000000000330000-memory.dmp

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

MD5 d124f55b9393c976963407dff51ffa79
SHA1 2c7bbedd79791bfb866898c85b504186db610b5d
SHA256 ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef
SHA512 278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

memory/1300-8-0x0000000000400000-0x000000000046C000-memory.dmp

memory/1184-7-0x00000000025D0000-0x00000000025E5000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-28 03:52

Reported

2023-12-29 15:06

Platform

win10v2004-20231215-en

Max time kernel

103s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c19897232ca2a5a8336be39d46ed5180.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\c19897232ca2a5a8336be39d46ed5180.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\c19897232ca2a5a8336be39d46ed5180.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c19897232ca2a5a8336be39d46ed5180.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c19897232ca2a5a8336be39d46ed5180.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c19897232ca2a5a8336be39d46ed5180.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c19897232ca2a5a8336be39d46ed5180.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c19897232ca2a5a8336be39d46ed5180.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\c19897232ca2a5a8336be39d46ed5180.exe

"C:\Users\Admin\AppData\Local\Temp\c19897232ca2a5a8336be39d46ed5180.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 2276 -ip 2276

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2276 -s 400

Network

Country Destination Domain Proto
US 138.91.171.81:80 tcp
US 8.8.8.8:53 21.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 158.240.127.40.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.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 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 192.64.119.13:80 telanganadigital.com tcp
US 8.8.8.8:53 75.30.19.89.in-addr.arpa udp
US 8.8.8.8:53 13.119.64.192.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 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 19.240.195.91.in-addr.arpa udp
US 8.8.8.8:53 150.1.37.23.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.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 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 224.162.46.104.in-addr.arpa udp

Files

memory/2276-3-0x0000000000400000-0x000000000046C000-memory.dmp

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

MD5 3d1b7ee7509b21941ed63a03ee77fcfa
SHA1 18fedee08b1d6c7a122dee9a461393b74f99aa1f
SHA256 fac69bca61813e0f4bac8b0bb8d68774714ee5d3c957cc39c52c6a78ab7206a0
SHA512 cef5f703061a1563a261b2a4f217bbf65f2f76aac05f4c7158240a1d4ce5f9ede255843432102973bac0075907c7b9e8bb645ce5f24f3f733eeb14b18d33ab84

memory/2276-2-0x0000000000630000-0x0000000000639000-memory.dmp

memory/2276-1-0x0000000000530000-0x0000000000630000-memory.dmp

memory/3596-8-0x0000000003140000-0x0000000003155000-memory.dmp

memory/2276-11-0x0000000000400000-0x000000000046C000-memory.dmp