Malware Analysis Report

2024-12-07 22:30

Sample ID 240405-q9jk1adh2t
Target 1712325245c1981ac1f5c06e3e617f5748a4bb434927215c5320c0a22e2bb4bf1467044137929.dat-decoded
SHA256 3ae2a8fcc969ec131e6ea2387dbdbdc6dd9ef216fc4a04990a403b7a38494778
Tags
remotehost remcos
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

3ae2a8fcc969ec131e6ea2387dbdbdc6dd9ef216fc4a04990a403b7a38494778

Threat Level: Known bad

The file 1712325245c1981ac1f5c06e3e617f5748a4bb434927215c5320c0a22e2bb4bf1467044137929.dat-decoded was found to be: Known bad.

Malicious Activity Summary

remotehost remcos

Remcos family

Unsigned PE

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-04-05 13:57

Signatures

Remcos family

remcos

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-05 13:57

Reported

2024-04-05 14:00

Platform

win7-20240221-en

Max time kernel

147s

Max time network

142s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1712325245c1981ac1f5c06e3e617f5748a4bb434927215c5320c0a22e2bb4bf1467044137929.exe"

Signatures

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\1712325245c1981ac1f5c06e3e617f5748a4bb434927215c5320c0a22e2bb4bf1467044137929.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\1712325245c1981ac1f5c06e3e617f5748a4bb434927215c5320c0a22e2bb4bf1467044137929.exe

"C:\Users\Admin\AppData\Local\Temp\1712325245c1981ac1f5c06e3e617f5748a4bb434927215c5320c0a22e2bb4bf1467044137929.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 rxms.duckdns.org udp
US 89.117.23.25:57832 rxms.duckdns.org tcp
US 8.8.8.8:53 geoplugin.net udp
NL 178.237.33.50:80 geoplugin.net tcp

Files

C:\ProgramData\remcos\logs.dat

MD5 62885c7e61a0712e2ce9d58fb921484d
SHA1 1a0c146b071119bde62a011fa17f8dccb98606a0
SHA256 ac8488a4af5d5f4bd6f3fa3792cc02b82ea04ac7b0751567a40688c64d042914
SHA512 563dc240642227af8fce2ada784cf6a96915d24e42499e84da2a32c1941430fdae028390c704727732dd5f77056202875c41e30b40b2694c1a4d94a12c1c1dc0

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-05 13:57

Reported

2024-04-05 14:00

Platform

win10v2004-20240226-en

Max time kernel

152s

Max time network

156s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1712325245c1981ac1f5c06e3e617f5748a4bb434927215c5320c0a22e2bb4bf1467044137929.exe"

Signatures

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\1712325245c1981ac1f5c06e3e617f5748a4bb434927215c5320c0a22e2bb4bf1467044137929.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\1712325245c1981ac1f5c06e3e617f5748a4bb434927215c5320c0a22e2bb4bf1467044137929.exe

"C:\Users\Admin\AppData\Local\Temp\1712325245c1981ac1f5c06e3e617f5748a4bb434927215c5320c0a22e2bb4bf1467044137929.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=4092 --field-trial-handle=2276,i,11674642242468042059,14711253743544118298,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 rxms.duckdns.org udp
US 89.117.23.25:57832 rxms.duckdns.org tcp
US 8.8.8.8:53 97.136.73.23.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 25.23.117.89.in-addr.arpa udp
US 8.8.8.8:53 geoplugin.net udp
NL 178.237.33.50:80 geoplugin.net tcp
US 8.8.8.8:53 17.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 50.33.237.178.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 153.136.73.23.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 7.173.189.20.in-addr.arpa udp

Files

C:\ProgramData\remcos\logs.dat

MD5 bb72a3566aec3bf8d1d3c249161da989
SHA1 680dad4da437713e403ad7d58638bd00744879c7
SHA256 4e05e373a6e5499a1376ad8346fd41eea4f247dc9d81e15ea8c35b8de115a1d3
SHA512 93a8ae6202aa82589469b40ddf411a6574ceb8ebe311101d99e57e0ede316ff6efa070ffa7790761941b9dc6f4b8405d46d17ade24f2b1b33dc5c061c28466e2