Malware Analysis Report

2025-01-22 19:22

Sample ID 240807-srf39szfrr
Target b1af5dfab626a3124588e6f951da6c90c3c8fed82912476e59ff0fd003f33811
SHA256 b1af5dfab626a3124588e6f951da6c90c3c8fed82912476e59ff0fd003f33811
Tags
xmrig miner upx 0 cobaltstrike
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

b1af5dfab626a3124588e6f951da6c90c3c8fed82912476e59ff0fd003f33811

Threat Level: Known bad

The file b1af5dfab626a3124588e6f951da6c90c3c8fed82912476e59ff0fd003f33811 was found to be: Known bad.

Malicious Activity Summary

xmrig miner upx 0 cobaltstrike

xmrig

Cobalt Strike reflective loader

Cobaltstrike family

XMRig Miner payload

Xmrig family

XMRig Miner payload

UPX packed file

Unsigned PE

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-08-07 15:21

Signatures

Cobalt Strike reflective loader

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

Cobaltstrike family

cobaltstrike

XMRig Miner payload

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

Xmrig family

xmrig

UPX packed file

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-07 15:21

Reported

2024-08-07 15:23

Platform

win7-20240729-en

Max time kernel

132s

Max time network

141s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b1af5dfab626a3124588e6f951da6c90c3c8fed82912476e59ff0fd003f33811.exe"

Signatures

xmrig

miner xmrig

XMRig Miner payload

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

UPX packed file

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeLockMemoryPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b1af5dfab626a3124588e6f951da6c90c3c8fed82912476e59ff0fd003f33811.exe N/A
Token: SeLockMemoryPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b1af5dfab626a3124588e6f951da6c90c3c8fed82912476e59ff0fd003f33811.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b1af5dfab626a3124588e6f951da6c90c3c8fed82912476e59ff0fd003f33811.exe

"C:\Users\Admin\AppData\Local\Temp\b1af5dfab626a3124588e6f951da6c90c3c8fed82912476e59ff0fd003f33811.exe"

Network

Country Destination Domain Proto
DE 3.120.209.58:8080 tcp
DE 3.120.209.58:8080 tcp
DE 3.120.209.58:8080 tcp
DE 3.120.209.58:8080 tcp
DE 3.120.209.58:8080 tcp
DE 3.120.209.58:8080 tcp

Files

memory/3000-1-0x000000013F4E0000-0x000000013F834000-memory.dmp

memory/3000-0-0x0000000000080000-0x0000000000090000-memory.dmp

memory/3000-2-0x000000013F4E0000-0x000000013F834000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-07 15:21

Reported

2024-08-07 15:23

Platform

win10v2004-20240802-en

Max time kernel

131s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b1af5dfab626a3124588e6f951da6c90c3c8fed82912476e59ff0fd003f33811.exe"

Signatures

xmrig

miner xmrig

XMRig Miner payload

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

UPX packed file

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeLockMemoryPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b1af5dfab626a3124588e6f951da6c90c3c8fed82912476e59ff0fd003f33811.exe N/A
Token: SeLockMemoryPrivilege N/A C:\Users\Admin\AppData\Local\Temp\b1af5dfab626a3124588e6f951da6c90c3c8fed82912476e59ff0fd003f33811.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b1af5dfab626a3124588e6f951da6c90c3c8fed82912476e59ff0fd003f33811.exe

"C:\Users\Admin\AppData\Local\Temp\b1af5dfab626a3124588e6f951da6c90c3c8fed82912476e59ff0fd003f33811.exe"

Network

Country Destination Domain Proto
DE 3.120.209.58:8080 tcp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
DE 3.120.209.58:8080 tcp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 73.190.18.2.in-addr.arpa udp
DE 3.120.209.58:8080 tcp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
DE 3.120.209.58:8080 tcp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
DE 3.120.209.58:8080 tcp
DE 3.120.209.58:8080 tcp

Files

memory/2960-0-0x00007FF7851B0000-0x00007FF785504000-memory.dmp

memory/2960-1-0x0000022184580000-0x0000022184590000-memory.dmp

memory/2960-2-0x00007FF7851B0000-0x00007FF785504000-memory.dmp