Malware Analysis Report

2025-01-02 11:07

Sample ID 240315-bgap3acg8z
Target ca181c870235408789af8fce8b864a2b
SHA256 b114c1a0885fafb1760367791b6267cdc26938c179245fee00797159c8ad735f
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

b114c1a0885fafb1760367791b6267cdc26938c179245fee00797159c8ad735f

Threat Level: Known bad

The file ca181c870235408789af8fce8b864a2b was found to be: Known bad.

Malicious Activity Summary

smokeloader pub1 backdoor trojan

SmokeLoader

Deletes itself

Loads dropped DLL

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Uses Task Scheduler COM API

Suspicious use of UnmapMainImage

Checks SCSI registry key(s)

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-03-15 01:06

Signatures

Unsigned PE

Description Indicator Process Target
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Analysis: behavioral1

Detonation Overview

Submitted

2024-03-15 01:06

Reported

2024-03-15 01:09

Platform

win7-20240221-en

Max time kernel

163s

Max time network

138s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ca181c870235408789af8fce8b864a2b.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\ca181c870235408789af8fce8b864a2b.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\ca181c870235408789af8fce8b864a2b.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\ca181c870235408789af8fce8b864a2b.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\ca181c870235408789af8fce8b864a2b.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\ca181c870235408789af8fce8b864a2b.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\ca181c870235408789af8fce8b864a2b.exe N/A

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\ca181c870235408789af8fce8b864a2b.exe

"C:\Users\Admin\AppData\Local\Temp\ca181c870235408789af8fce8b864a2b.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 94.73.151.78:80 ozentekstil.com tcp
TR 94.73.151.78:80 ozentekstil.com tcp
TR 94.73.151.78:443 ozentekstil.com tcp
TR 94.73.151.78:443 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/2076-2-0x0000000002D50000-0x0000000002E50000-memory.dmp

memory/2076-3-0x0000000000220000-0x0000000000229000-memory.dmp

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

MD5 d124f55b9393c976963407dff51ffa79
SHA1 2c7bbedd79791bfb866898c85b504186db610b5d
SHA256 ea1e16247c848c8c171c4cd1fa17bc5a018a1fcb0c0dac25009066b6667b8eef
SHA512 278fe3a4b1fbbe700e4f4483b610133e975e36e101455661d5197bd892a68839b9d555499040d200c92aefa9e3819380e395c0cd85d5fc845c6364d128a8cf06

memory/2076-6-0x0000000000400000-0x0000000002C6A000-memory.dmp

memory/1396-7-0x0000000002650000-0x0000000002665000-memory.dmp

memory/2076-8-0x0000000000400000-0x0000000002C6A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-15 01:06

Reported

2024-03-15 01:09

Platform

win10v2004-20240226-en

Max time kernel

167s

Max time network

178s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ca181c870235408789af8fce8b864a2b.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\ca181c870235408789af8fce8b864a2b.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\ca181c870235408789af8fce8b864a2b.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\ca181c870235408789af8fce8b864a2b.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\ca181c870235408789af8fce8b864a2b.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\ca181c870235408789af8fce8b864a2b.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\ca181c870235408789af8fce8b864a2b.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\ca181c870235408789af8fce8b864a2b.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

Suspicious use of UnmapMainImage

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

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\ca181c870235408789af8fce8b864a2b.exe

"C:\Users\Admin\AppData\Local\Temp\ca181c870235408789af8fce8b864a2b.exe"

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1424 --field-trial-handle=2180,i,12780723798465539942,12010519452607841069,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 61.179.17.96.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 217.135.221.88.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 94.73.151.78:80 ozentekstil.com tcp
TR 94.73.151.78:80 ozentekstil.com tcp
US 8.8.8.8:53 78.151.73.94.in-addr.arpa udp
US 8.8.8.8:53 4.187.104.172.in-addr.arpa udp
TR 94.73.151.78:443 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
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
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 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
GB 142.250.187.202:443 chromewebstore.googleapis.com tcp
US 8.8.8.8:53 10.179.89.13.in-addr.arpa udp
US 8.8.8.8:53 202.187.250.142.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.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

Files

memory/4324-1-0x0000000002ED0000-0x0000000002FD0000-memory.dmp

memory/4324-2-0x00000000049B0000-0x00000000049B9000-memory.dmp

memory/4324-3-0x0000000000400000-0x0000000002C6A000-memory.dmp

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

MD5 378d54e8e8f1d27ddfce1829494ff630
SHA1 b37425ad8498d43e29db28550d45c3b8eedc9ee9
SHA256 8f8d74640e172894287d8c3fa58b889bafda9e39b20bfeec5fcc8e7319209f27
SHA512 e1483369a6971d3d8d7fce87187a6d86fe10e3be906ccc897386a1aedd4741279ccc182e4b291f1ae6a3c45cde8a562d0b7240fb21f815284b10c3591bb8bf96

memory/3428-9-0x0000000000790000-0x00000000007A5000-memory.dmp

memory/4324-13-0x00000000049B0000-0x00000000049B9000-memory.dmp

memory/4324-10-0x0000000000400000-0x0000000002C6A000-memory.dmp