Malware Analysis Report

2025-08-05 11:15

Sample ID 241027-pfdl8aybnj
Target 879e2503aee82eeaa24970c932599b82b5d00f786e0cca2b61605c98e4677f1bN
SHA256 879e2503aee82eeaa24970c932599b82b5d00f786e0cca2b61605c98e4677f1b
Tags
upx xmrig discovery miner
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

879e2503aee82eeaa24970c932599b82b5d00f786e0cca2b61605c98e4677f1b

Threat Level: Known bad

The file 879e2503aee82eeaa24970c932599b82b5d00f786e0cca2b61605c98e4677f1bN was found to be: Known bad.

Malicious Activity Summary

upx xmrig discovery miner

Xmrig family

xmrig

XMRig Miner payload

Deletes itself

Executes dropped EXE

Loads dropped DLL

UPX packed file

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious behavior: RenamesItself

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-27 12:15

Signatures

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

2024-10-27 12:15

Reported

2024-10-27 12:18

Platform

win7-20241010-en

Max time kernel

15s

Max time network

20s

Command Line

"C:\Users\Admin\AppData\Local\Temp\879e2503aee82eeaa24970c932599b82b5d00f786e0cca2b61605c98e4677f1bN.exe"

Signatures

Xmrig family

xmrig

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
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
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\879e2503aee82eeaa24970c932599b82b5d00f786e0cca2b61605c98e4677f1bN.exe 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
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\879e2503aee82eeaa24970c932599b82b5d00f786e0cca2b61605c98e4677f1bN.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\879e2503aee82eeaa24970c932599b82b5d00f786e0cca2b61605c98e4677f1bN.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\879e2503aee82eeaa24970c932599b82b5d00f786e0cca2b61605c98e4677f1bN.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\879e2503aee82eeaa24970c932599b82b5d00f786e0cca2b61605c98e4677f1bN.exe

"C:\Users\Admin\AppData\Local\Temp\879e2503aee82eeaa24970c932599b82b5d00f786e0cca2b61605c98e4677f1bN.exe"

C:\Users\Admin\AppData\Local\Temp\879e2503aee82eeaa24970c932599b82b5d00f786e0cca2b61605c98e4677f1bN.exe

C:\Users\Admin\AppData\Local\Temp\879e2503aee82eeaa24970c932599b82b5d00f786e0cca2b61605c98e4677f1bN.exe

Network

N/A

Files

memory/2380-0-0x0000000000400000-0x0000000000712000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\879e2503aee82eeaa24970c932599b82b5d00f786e0cca2b61605c98e4677f1bN.exe

MD5 ea057afb6acb120c63180d7d31ac7b04
SHA1 93e6d41029a950d46334333febd93f9f33b471ed
SHA256 c53403f53881ff1d01bbf933057f7986d2bbf30047a3dbc65262cbadd907ea67
SHA512 5a641f947f9a25112cfa4cdcaff1f6562d51dcdb0dbd04320258a51196b32f3d4e74c90fcbc9db157d12acd9ecc004d74a8d74703bf764f559c88c89bf5aee85

memory/2380-14-0x0000000000400000-0x0000000000593000-memory.dmp

memory/1044-16-0x0000000000400000-0x0000000000712000-memory.dmp

memory/2380-8-0x0000000000120000-0x00000000001E4000-memory.dmp

memory/1044-17-0x00000000018B0000-0x0000000001974000-memory.dmp

memory/2380-1-0x0000000000400000-0x0000000000593000-memory.dmp

memory/1044-23-0x0000000000400000-0x0000000000587000-memory.dmp

memory/1044-32-0x00000000030D0000-0x0000000003263000-memory.dmp

memory/1044-18-0x0000000000400000-0x0000000000593000-memory.dmp

memory/1044-33-0x00000000005A0000-0x000000000071F000-memory.dmp

memory/1044-34-0x0000000000400000-0x0000000000587000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-27 12:15

Reported

2024-10-27 12:17

Platform

win10v2004-20241007-en

Max time kernel

100s

Max time network

101s

Command Line

"C:\Users\Admin\AppData\Local\Temp\879e2503aee82eeaa24970c932599b82b5d00f786e0cca2b61605c98e4677f1bN.exe"

Signatures

Xmrig family

xmrig

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
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

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\879e2503aee82eeaa24970c932599b82b5d00f786e0cca2b61605c98e4677f1bN.exe 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
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\879e2503aee82eeaa24970c932599b82b5d00f786e0cca2b61605c98e4677f1bN.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\879e2503aee82eeaa24970c932599b82b5d00f786e0cca2b61605c98e4677f1bN.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\879e2503aee82eeaa24970c932599b82b5d00f786e0cca2b61605c98e4677f1bN.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\879e2503aee82eeaa24970c932599b82b5d00f786e0cca2b61605c98e4677f1bN.exe

"C:\Users\Admin\AppData\Local\Temp\879e2503aee82eeaa24970c932599b82b5d00f786e0cca2b61605c98e4677f1bN.exe"

C:\Users\Admin\AppData\Local\Temp\879e2503aee82eeaa24970c932599b82b5d00f786e0cca2b61605c98e4677f1bN.exe

C:\Users\Admin\AppData\Local\Temp\879e2503aee82eeaa24970c932599b82b5d00f786e0cca2b61605c98e4677f1bN.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.28.10:443 g.bing.com tcp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 69.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.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

Files

memory/2868-0-0x0000000000400000-0x0000000000712000-memory.dmp

memory/2868-1-0x0000000001A80000-0x0000000001B44000-memory.dmp

memory/2868-2-0x0000000000400000-0x0000000000593000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\879e2503aee82eeaa24970c932599b82b5d00f786e0cca2b61605c98e4677f1bN.exe

MD5 d62b50591a409b02787f53c4cd939217
SHA1 2fa7ac359855cd4e44c5f288bf991cdf96cbcd49
SHA256 78ec0239c002a42402313d58cd0bd12468dadc872220e87c5930f25be373a685
SHA512 09c91b0cbdc927d78cc40b956233165bb8d0d9e9bc5ae81ae72693c01949de836f960ce3ee70d62a4ee8ec68d95a9241d664929cf742aa5f28d807d7bd2ab7cc

memory/2868-12-0x0000000000400000-0x0000000000593000-memory.dmp

memory/4580-13-0x0000000000400000-0x0000000000712000-memory.dmp

memory/4580-14-0x00000000018E0000-0x00000000019A4000-memory.dmp

memory/4580-16-0x0000000000400000-0x0000000000593000-memory.dmp

memory/4580-20-0x0000000005490000-0x0000000005623000-memory.dmp

memory/4580-21-0x0000000000400000-0x0000000000587000-memory.dmp

memory/4580-30-0x0000000000400000-0x0000000000587000-memory.dmp