Malware Analysis Report

2025-01-02 04:53

Sample ID 240426-sjw5hseb66
Target 37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.zip
SHA256 ea33703fd5a3fc1a12294091703ebbdce05405818ac839d7800063782e494119
Tags
smokeloader 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
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SHA256

ea33703fd5a3fc1a12294091703ebbdce05405818ac839d7800063782e494119

Threat Level: Known bad

The file 37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.zip was found to be: Known bad.

Malicious Activity Summary

smokeloader backdoor trojan

SmokeLoader

Deletes itself

Unsigned PE

Checks SCSI registry key(s)

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Uses Task Scheduler COM API

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-26 15:09

Signatures

Unsigned PE

Description Indicator Process Target
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Analysis: behavioral1

Detonation Overview

Submitted

2024-04-26 15:09

Reported

2024-04-26 15:12

Platform

win7-20240221-en

Max time kernel

150s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Deletes itself

Description Indicator Process Target
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Checks SCSI registry key(s)

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.exe N/A

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.exe

"C:\Users\Admin\AppData\Local\Temp\37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 potunulit.org udp
US 8.8.8.8:53 hutnilior.net udp
US 8.8.8.8:53 bulimu55t.net udp
US 8.8.8.8:53 soryytlic4.net udp
US 8.8.8.8:53 novanosa5org.org udp
NL 35.204.181.10:80 novanosa5org.org tcp
US 8.8.8.8:53 nuljjjnuli.org udp
US 172.67.183.20:80 nuljjjnuli.org tcp
US 8.8.8.8:53 tolilolihul.net udp
US 34.174.78.212:80 tolilolihul.net tcp
US 8.8.8.8:53 somatoka51hub.net udp
NL 34.91.32.224:80 somatoka51hub.net tcp
US 8.8.8.8:53 hujukui3.net udp
SG 34.126.189.157:80 hujukui3.net tcp
US 8.8.8.8:53 bukubuka1.net udp
US 34.29.71.138:80 bukubuka1.net tcp
US 8.8.8.8:53 golilopaster.org udp
US 34.174.78.212:80 golilopaster.org tcp
US 8.8.8.8:53 newzelannd66.org udp
NL 34.91.32.224:80 newzelannd66.org tcp
US 8.8.8.8:53 otriluyttn.org udp

Files

memory/2868-3-0x0000000000400000-0x0000000000826000-memory.dmp

memory/2868-2-0x0000000000220000-0x0000000000229000-memory.dmp

memory/2868-1-0x00000000009E0000-0x0000000000AE0000-memory.dmp

memory/1180-4-0x0000000002A90000-0x0000000002AA6000-memory.dmp

memory/2868-8-0x0000000000400000-0x0000000000826000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-26 15:09

Reported

2024-04-26 15:12

Platform

win10v2004-20240226-en

Max time kernel

150s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.exe"

Signatures

SmokeLoader

trojan backdoor smokeloader

Deletes itself

Description Indicator Process Target
N/A N/A N/A 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\37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.exe N/A

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.exe

"C:\Users\Admin\AppData\Local\Temp\37419d3a8a50d2e5bc0eef676a37d6757ba43a64eff868edb4af5c386900235f.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=4060 --field-trial-handle=2328,i,5873823382323802923,13134441441264702821,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 51.77.216.23.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 potunulit.org udp
US 8.8.8.8:53 hutnilior.net udp
US 8.8.8.8:53 bulimu55t.net udp
US 8.8.8.8:53 soryytlic4.net udp
US 8.8.8.8:53 novanosa5org.org udp
NL 35.204.181.10:80 novanosa5org.org tcp
US 8.8.8.8:53 nuljjjnuli.org udp
US 172.67.183.20:80 nuljjjnuli.org tcp
US 8.8.8.8:53 10.181.204.35.in-addr.arpa udp
US 8.8.8.8:53 20.183.67.172.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 13.107.253.64:443 tcp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
GB 142.250.200.10:443 chromewebstore.googleapis.com tcp
US 8.8.8.8:53 pki.goog udp
US 8.8.8.8:53 pki.goog udp
US 216.239.32.29:80 pki.goog tcp
US 8.8.8.8:53 10.200.250.142.in-addr.arpa udp
US 8.8.8.8:53 29.32.239.216.in-addr.arpa udp
US 8.8.8.8:53 tolilolihul.net udp
US 34.174.78.212:80 tolilolihul.net tcp
US 8.8.8.8:53 somatoka51hub.net udp
NL 34.91.32.224:80 somatoka51hub.net tcp
US 8.8.8.8:53 hujukui3.net udp
US 8.8.8.8:53 212.78.174.34.in-addr.arpa udp
SG 34.126.189.157:80 hujukui3.net tcp
US 8.8.8.8:53 bukubuka1.net udp
US 8.8.8.8:53 157.189.126.34.in-addr.arpa udp
US 8.8.8.8:53 224.32.91.34.in-addr.arpa udp
US 34.29.71.138:80 bukubuka1.net tcp
US 8.8.8.8:53 golilopaster.org udp
US 34.174.78.212:80 golilopaster.org tcp
US 8.8.8.8:53 newzelannd66.org udp
NL 34.91.32.224:80 newzelannd66.org tcp
US 8.8.8.8:53 otriluyttn.org udp
US 8.8.8.8:53 138.71.29.34.in-addr.arpa udp
US 8.8.8.8:53 241.66.18.2.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 134.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 28.173.189.20.in-addr.arpa udp

Files

memory/1892-1-0x0000000000930000-0x0000000000A30000-memory.dmp

memory/1892-2-0x0000000002570000-0x0000000002579000-memory.dmp

memory/1892-3-0x0000000000400000-0x0000000000826000-memory.dmp

memory/3332-4-0x0000000002690000-0x00000000026A6000-memory.dmp

memory/1892-5-0x0000000000400000-0x0000000000826000-memory.dmp

memory/1892-8-0x0000000002570000-0x0000000002579000-memory.dmp