Malware Analysis Report

2024-10-19 08:15

Sample ID 240831-khdyjsvcnq
Target 0370ab8f7dd7979c7c731f39cad5410a.zip
SHA256 c0485e162e2e052fae8ec97b2e9bd2de3bc9bdeb08eb53c3754d98a9079b617c
Tags
expiro backdoor discovery
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

c0485e162e2e052fae8ec97b2e9bd2de3bc9bdeb08eb53c3754d98a9079b617c

Threat Level: Known bad

The file 0370ab8f7dd7979c7c731f39cad5410a.zip was found to be: Known bad.

Malicious Activity Summary

expiro backdoor discovery

Expiro, m0yv

Expiro payload

Unsigned PE

System Location Discovery: System Language Discovery

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-31 08:35

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-31 08:35

Reported

2024-08-31 08:38

Platform

win7-20240705-en

Max time kernel

117s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\74d6dad0f286be246f9a44dde0d6c1f5ce05b6b7e797cf9c108e78b0922fae1a.exe"

Signatures

Expiro, m0yv

backdoor expiro

Expiro payload

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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\74d6dad0f286be246f9a44dde0d6c1f5ce05b6b7e797cf9c108e78b0922fae1a.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\74d6dad0f286be246f9a44dde0d6c1f5ce05b6b7e797cf9c108e78b0922fae1a.exe

"C:\Users\Admin\AppData\Local\Temp\74d6dad0f286be246f9a44dde0d6c1f5ce05b6b7e797cf9c108e78b0922fae1a.exe"

Network

N/A

Files

memory/1640-0-0x0000000010074000-0x0000000010108000-memory.dmp

memory/1640-1-0x0000000010000000-0x0000000010108000-memory.dmp

memory/1640-2-0x0000000010074000-0x0000000010108000-memory.dmp

memory/1640-3-0x0000000010000000-0x0000000010108000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-31 08:35

Reported

2024-08-31 08:38

Platform

win10v2004-20240802-en

Max time kernel

140s

Max time network

128s

Command Line

"C:\Users\Admin\AppData\Local\Temp\74d6dad0f286be246f9a44dde0d6c1f5ce05b6b7e797cf9c108e78b0922fae1a.exe"

Signatures

Expiro, m0yv

backdoor expiro

Expiro payload

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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\74d6dad0f286be246f9a44dde0d6c1f5ce05b6b7e797cf9c108e78b0922fae1a.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\74d6dad0f286be246f9a44dde0d6c1f5ce05b6b7e797cf9c108e78b0922fae1a.exe

"C:\Users\Admin\AppData\Local\Temp\74d6dad0f286be246f9a44dde0d6c1f5ce05b6b7e797cf9c108e78b0922fae1a.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 --field-trial-handle=4460,i,1330210614411927383,9239043499051775691,262144 --variations-seed-version --mojo-platform-channel-handle=1320 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.27.10:443 g.bing.com tcp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 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 29.243.111.52.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 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 200.201.50.20.in-addr.arpa udp

Files

memory/5088-0-0x0000000010074000-0x0000000010108000-memory.dmp

memory/5088-1-0x0000000010000000-0x0000000010108000-memory.dmp

memory/5088-2-0x0000000010074000-0x0000000010108000-memory.dmp

memory/5088-3-0x0000000010000000-0x0000000010108000-memory.dmp