Malware Analysis Report

2024-11-16 13:27

Sample ID 240804-dbeg6stfnq
Target c1a10d79b96a9be050614303a00d5769f53389d9ce07c980eb3b0b9b2ea70b6f
SHA256 c1a10d79b96a9be050614303a00d5769f53389d9ce07c980eb3b0b9b2ea70b6f
Tags
upx urelas discovery 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

c1a10d79b96a9be050614303a00d5769f53389d9ce07c980eb3b0b9b2ea70b6f

Threat Level: Known bad

The file c1a10d79b96a9be050614303a00d5769f53389d9ce07c980eb3b0b9b2ea70b6f was found to be: Known bad.

Malicious Activity Summary

upx urelas discovery trojan

Urelas family

Urelas

UPX packed file

Deletes itself

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

Unsigned PE

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-04 02:49

Signatures

Urelas family

urelas

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-04 02:49

Reported

2024-08-04 02:52

Platform

win7-20240729-en

Max time kernel

117s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c1a10d79b96a9be050614303a00d5769f53389d9ce07c980eb3b0b9b2ea70b6f.exe"

Signatures

Urelas

trojan urelas

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A

Executes dropped EXE

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

Enumerates physical storage devices

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\c1a10d79b96a9be050614303a00d5769f53389d9ce07c980eb3b0b9b2ea70b6f.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\huter.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\c1a10d79b96a9be050614303a00d5769f53389d9ce07c980eb3b0b9b2ea70b6f.exe

"C:\Users\Admin\AppData\Local\Temp\c1a10d79b96a9be050614303a00d5769f53389d9ce07c980eb3b0b9b2ea70b6f.exe"

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

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

C:\Windows\SysWOW64\cmd.exe

cmd /c ""C:\Users\Admin\AppData\Local\Temp\sanfdr.bat" "

Network

Country Destination Domain Proto
KR 112.175.88.209:11120 tcp
KR 112.175.88.208:11150 tcp
KR 112.175.88.209:11170 tcp
KR 112.175.88.207:11150 tcp

Files

memory/2660-0-0x0000000000400000-0x0000000000431000-memory.dmp

\Users\Admin\AppData\Local\Temp\huter.exe

MD5 f2cf602041ce080f8d03c2fb06c8164a
SHA1 d15addb5a2e17b8cd9df11dd501936fc3fc5594a
SHA256 3ff948a3989f25a3524f55442ad1e440675b1d327895c04ab755d54dae9978c5
SHA512 e0756bbdffdc9bbbc4b10c4f3d3780eacd6f784840e870e529a32a184f299a5db1c9597fa267bb69d7acd6aa6f0e753ed71c36fb24ed314dfe594cfa5d31fb9d

C:\Users\Admin\AppData\Local\Temp\sanfdr.bat

MD5 6637b170389d4585d411c8a04b522289
SHA1 7c464218af2563a530b0ec1f5c78ff00eed6e844
SHA256 e08eb5f2b6776b3d95a78f38afde4daa747b30885f47dda2356499202b8958e4
SHA512 47eb19e74e566e6fa7e783780207b2fde080963729e61fda4912860592c34a0f3182b364510f3f83b9493e2d3fbab6352da3251378b03486cd62392a37fcbca3

memory/2660-8-0x0000000001D30000-0x0000000001D61000-memory.dmp

memory/2804-17-0x0000000000400000-0x0000000000431000-memory.dmp

memory/2660-19-0x0000000000400000-0x0000000000431000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\golfinfo.ini

MD5 a01dba4c45102fc15292fd5591166536
SHA1 d96191c30e0f09439d8547f4ededbf6726ccd54b
SHA256 cc2f9d3db04690b746c18d40c70f8dbc9ca18520b68619d9ccaeac500af98904
SHA512 277a86f44c2648668205cd6c3c9f83feef147a5ad10839a130713eee9c931c26088d4dd95798b1d0e69f3439239abdee79d37656ad3963147a878a9433d60d32

memory/2804-22-0x0000000000400000-0x0000000000431000-memory.dmp

memory/2804-24-0x0000000000400000-0x0000000000431000-memory.dmp

memory/2804-31-0x0000000000400000-0x0000000000431000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-04 02:49

Reported

2024-08-04 02:52

Platform

win10v2004-20240802-en

Max time kernel

93s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c1a10d79b96a9be050614303a00d5769f53389d9ce07c980eb3b0b9b2ea70b6f.exe"

Signatures

Urelas

trojan urelas

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\c1a10d79b96a9be050614303a00d5769f53389d9ce07c980eb3b0b9b2ea70b6f.exe N/A

Executes dropped EXE

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

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\c1a10d79b96a9be050614303a00d5769f53389d9ce07c980eb3b0b9b2ea70b6f.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\huter.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\c1a10d79b96a9be050614303a00d5769f53389d9ce07c980eb3b0b9b2ea70b6f.exe

"C:\Users\Admin\AppData\Local\Temp\c1a10d79b96a9be050614303a00d5769f53389d9ce07c980eb3b0b9b2ea70b6f.exe"

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

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

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\sanfdr.bat" "

Network

Country Destination Domain Proto
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
KR 112.175.88.209:11120 tcp
KR 112.175.88.208:11150 tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
KR 112.175.88.209:11170 tcp
KR 112.175.88.207:11150 tcp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp

Files

memory/3976-0-0x0000000000400000-0x0000000000431000-memory.dmp

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

MD5 d977bef362b0d377dc59edc28e78280b
SHA1 b42fb786e60528cddd198a2a9f3a1f62cb38d92d
SHA256 3d5bb8069bc5f87037cc009c409ae9e206302ab9b9a54f8826a3b03637c18776
SHA512 97fa2dd2968dfc366c320c09aac5285cade4bde62e6ec49461b35c4e4f29322681653c8ec393f488b309d42c1fc5b65a6b30ce5d7e02aa72cedf2e4a8e1e60ba

memory/1588-15-0x0000000000400000-0x0000000000431000-memory.dmp

memory/3976-17-0x0000000000400000-0x0000000000431000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\sanfdr.bat

MD5 6637b170389d4585d411c8a04b522289
SHA1 7c464218af2563a530b0ec1f5c78ff00eed6e844
SHA256 e08eb5f2b6776b3d95a78f38afde4daa747b30885f47dda2356499202b8958e4
SHA512 47eb19e74e566e6fa7e783780207b2fde080963729e61fda4912860592c34a0f3182b364510f3f83b9493e2d3fbab6352da3251378b03486cd62392a37fcbca3

C:\Users\Admin\AppData\Local\Temp\golfinfo.ini

MD5 a01dba4c45102fc15292fd5591166536
SHA1 d96191c30e0f09439d8547f4ededbf6726ccd54b
SHA256 cc2f9d3db04690b746c18d40c70f8dbc9ca18520b68619d9ccaeac500af98904
SHA512 277a86f44c2648668205cd6c3c9f83feef147a5ad10839a130713eee9c931c26088d4dd95798b1d0e69f3439239abdee79d37656ad3963147a878a9433d60d32

memory/1588-20-0x0000000000400000-0x0000000000431000-memory.dmp

memory/1588-22-0x0000000000400000-0x0000000000431000-memory.dmp

memory/1588-29-0x0000000000400000-0x0000000000431000-memory.dmp