Malware Analysis Report

2025-01-02 11:08

Sample ID 240314-f4aqssdg77
Target c7ccb4a44b7cd5ddce78eec54a5e0c306bcd1a0154db447b0f3efbe4719ca4ba
SHA256 c7ccb4a44b7cd5ddce78eec54a5e0c306bcd1a0154db447b0f3efbe4719ca4ba
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

c7ccb4a44b7cd5ddce78eec54a5e0c306bcd1a0154db447b0f3efbe4719ca4ba

Threat Level: Known bad

The file c7ccb4a44b7cd5ddce78eec54a5e0c306bcd1a0154db447b0f3efbe4719ca4ba was found to be: Known bad.

Malicious Activity Summary

smokeloader pub1 backdoor trojan

SmokeLoader

Deletes itself

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of UnmapMainImage

Uses Task Scheduler COM API

Checks SCSI registry key(s)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-03-14 05:25

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-14 05:25

Reported

2024-03-14 05:27

Platform

win7-20240221-en

Max time kernel

150s

Max time network

117s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c7ccb4a44b7cd5ddce78eec54a5e0c306bcd1a0154db447b0f3efbe4719ca4ba.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\c7ccb4a44b7cd5ddce78eec54a5e0c306bcd1a0154db447b0f3efbe4719ca4ba.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c7ccb4a44b7cd5ddce78eec54a5e0c306bcd1a0154db447b0f3efbe4719ca4ba.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c7ccb4a44b7cd5ddce78eec54a5e0c306bcd1a0154db447b0f3efbe4719ca4ba.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c7ccb4a44b7cd5ddce78eec54a5e0c306bcd1a0154db447b0f3efbe4719ca4ba.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c7ccb4a44b7cd5ddce78eec54a5e0c306bcd1a0154db447b0f3efbe4719ca4ba.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c7ccb4a44b7cd5ddce78eec54a5e0c306bcd1a0154db447b0f3efbe4719ca4ba.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\c7ccb4a44b7cd5ddce78eec54a5e0c306bcd1a0154db447b0f3efbe4719ca4ba.exe

"C:\Users\Admin\AppData\Local\Temp\c7ccb4a44b7cd5ddce78eec54a5e0c306bcd1a0154db447b0f3efbe4719ca4ba.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 gxutc2c.com udp
SA 178.86.72.207:80 gxutc2c.com tcp
SA 178.86.72.207:80 gxutc2c.com tcp
SA 178.86.72.207:80 gxutc2c.com tcp
SA 178.86.72.207:80 gxutc2c.com tcp
SA 178.86.72.207:80 gxutc2c.com tcp
SA 178.86.72.207:80 gxutc2c.com tcp
SA 178.86.72.207:80 gxutc2c.com tcp
SA 178.86.72.207:80 gxutc2c.com tcp
SA 178.86.72.207:80 gxutc2c.com tcp
SA 178.86.72.207:80 gxutc2c.com tcp

Files

memory/1044-2-0x0000000000230000-0x000000000023B000-memory.dmp

memory/1044-1-0x0000000000910000-0x0000000000A10000-memory.dmp

memory/1044-3-0x0000000000400000-0x0000000000861000-memory.dmp

memory/1044-5-0x0000000000400000-0x0000000000861000-memory.dmp

memory/1200-4-0x0000000002D40000-0x0000000002D56000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-14 05:25

Reported

2024-03-14 05:27

Platform

win10v2004-20240226-en

Max time kernel

153s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c7ccb4a44b7cd5ddce78eec54a5e0c306bcd1a0154db447b0f3efbe4719ca4ba.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\c7ccb4a44b7cd5ddce78eec54a5e0c306bcd1a0154db447b0f3efbe4719ca4ba.exe N/A
Key queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c7ccb4a44b7cd5ddce78eec54a5e0c306bcd1a0154db447b0f3efbe4719ca4ba.exe N/A
Key enumerated \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI C:\Users\Admin\AppData\Local\Temp\c7ccb4a44b7cd5ddce78eec54a5e0c306bcd1a0154db447b0f3efbe4719ca4ba.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c7ccb4a44b7cd5ddce78eec54a5e0c306bcd1a0154db447b0f3efbe4719ca4ba.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\c7ccb4a44b7cd5ddce78eec54a5e0c306bcd1a0154db447b0f3efbe4719ca4ba.exe N/A
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Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\c7ccb4a44b7cd5ddce78eec54a5e0c306bcd1a0154db447b0f3efbe4719ca4ba.exe N/A

Suspicious use of UnmapMainImage

Description Indicator Process Target
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Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\c7ccb4a44b7cd5ddce78eec54a5e0c306bcd1a0154db447b0f3efbe4719ca4ba.exe

"C:\Users\Admin\AppData\Local\Temp\c7ccb4a44b7cd5ddce78eec54a5e0c306bcd1a0154db447b0f3efbe4719ca4ba.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 g.bing.com udp
US 204.79.197.200:443 g.bing.com tcp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 240.143.123.92.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 gxutc2c.com udp
KR 211.171.233.129:80 gxutc2c.com tcp
KR 211.171.233.129:80 gxutc2c.com tcp
US 8.8.8.8:53 129.233.171.211.in-addr.arpa udp
KR 211.171.233.129:80 gxutc2c.com tcp
KR 211.171.233.129:80 gxutc2c.com tcp
KR 211.171.233.129:80 gxutc2c.com tcp
KR 211.171.233.129:80 gxutc2c.com tcp
KR 211.171.233.129:80 gxutc2c.com tcp
KR 211.171.233.129:80 gxutc2c.com tcp
KR 211.171.233.129:80 gxutc2c.com tcp
KR 211.171.233.129:80 gxutc2c.com tcp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.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 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
NL 142.250.179.202:443 chromewebstore.googleapis.com tcp
US 8.8.8.8:53 14.173.189.20.in-addr.arpa udp
US 8.8.8.8:53 202.179.250.142.in-addr.arpa udp

Files

memory/208-1-0x0000000000B60000-0x0000000000C60000-memory.dmp

memory/208-2-0x0000000000AD0000-0x0000000000ADB000-memory.dmp

memory/208-3-0x0000000000400000-0x0000000000861000-memory.dmp

memory/3428-4-0x00000000007A0000-0x00000000007B6000-memory.dmp

memory/208-5-0x0000000000400000-0x0000000000861000-memory.dmp

memory/208-8-0x0000000000AD0000-0x0000000000ADB000-memory.dmp