Malware Analysis Report

2024-11-16 13:27

Sample ID 240801-bp56yaydjd
Target 161db86eb5f9237449a1027c1f63f310.bin
SHA256 9b3643ecbf7402006d8cf776811ae5190d1a70a8bd3ac491c7c20a8d97691efb
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

9b3643ecbf7402006d8cf776811ae5190d1a70a8bd3ac491c7c20a8d97691efb

Threat Level: Known bad

The file 161db86eb5f9237449a1027c1f63f310.bin was found to be: Known bad.

Malicious Activity Summary

upx urelas discovery trojan

Urelas family

Urelas

Deletes itself

Loads dropped DLL

Checks computer location settings

UPX packed file

Executes dropped EXE

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-01 01:20

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

2024-08-01 01:20

Reported

2024-08-01 01:22

Platform

win7-20240708-en

Max time kernel

121s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\161db86eb5f9237449a1027c1f63f310.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

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\161db86eb5f9237449a1027c1f63f310.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

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\161db86eb5f9237449a1027c1f63f310.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\161db86eb5f9237449a1027c1f63f310.exe

"C:\Users\Admin\AppData\Local\Temp\161db86eb5f9237449a1027c1f63f310.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/2252-0-0x0000000000400000-0x0000000000431000-memory.dmp

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

MD5 5e451f4b66e856c36af3d88aea99c7fa
SHA1 71e31eac499fb7c05ae6d181defd3cc5beafeda6
SHA256 5e6b86ce13f80e83b9599e1f462bd141e69cd953281239e7185bcd690cfa6f80
SHA512 464d13447f39e0df92c425ca1e283d0a9b5a7b7a59643fea795815a458becba6e920809dd7b9c4f0eaa73591805ba5c5e53f10ed3a6baeb561e8e4998962b25c

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

MD5 f6ded6959fb77f028c1fc4610cf98ac9
SHA1 86878df65adbc4fc768d21851ed844e0288f1f0c
SHA256 e81200edb8bdeb4f0cf6f7b5ffa97452fe542e17c1667c25ea916f895ad39286
SHA512 6a4196bd40fdd61c3e086a7f92186cbc8ee45058263d123889394c2f850f11e60768667f8e365c37cefe0e8fc245de23221fb382d095acbb53ac9d6a7552c892

memory/2252-17-0x0000000000400000-0x0000000000431000-memory.dmp

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

MD5 a01dba4c45102fc15292fd5591166536
SHA1 d96191c30e0f09439d8547f4ededbf6726ccd54b
SHA256 cc2f9d3db04690b746c18d40c70f8dbc9ca18520b68619d9ccaeac500af98904
SHA512 277a86f44c2648668205cd6c3c9f83feef147a5ad10839a130713eee9c931c26088d4dd95798b1d0e69f3439239abdee79d37656ad3963147a878a9433d60d32

memory/2756-20-0x0000000000400000-0x0000000000431000-memory.dmp

memory/2756-22-0x0000000000400000-0x0000000000431000-memory.dmp

memory/2756-29-0x0000000000400000-0x0000000000431000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-01 01:20

Reported

2024-08-01 01:22

Platform

win10v2004-20240730-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\161db86eb5f9237449a1027c1f63f310.exe"

Signatures

Urelas

trojan urelas

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2927035347-1736702767-189270196-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\161db86eb5f9237449a1027c1f63f310.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\161db86eb5f9237449a1027c1f63f310.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\161db86eb5f9237449a1027c1f63f310.exe

"C:\Users\Admin\AppData\Local\Temp\161db86eb5f9237449a1027c1f63f310.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 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 240.143.123.92.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
KR 112.175.88.209:11120 tcp
KR 112.175.88.208:11150 tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
KR 112.175.88.209:11170 tcp
KR 112.175.88.207:11150 tcp
US 8.8.8.8:53 209.143.182.52.in-addr.arpa udp

Files

memory/4552-0-0x0000000000400000-0x0000000000431000-memory.dmp

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

MD5 07e22f632c6ba0c7cdf97d2c3cb9a653
SHA1 a2f33b0956db23ac800b3784bd6d5097379b037d
SHA256 f39b1ff6295145570cee0d176d42a672a5bb3054ff777b5f5379e9606038fb7d
SHA512 12029331b934fb66e5e13d178f527e68fb3f9655584810877f2288b69172dca78a2b075f815d5f8de4a3845ccdc39292e77f42324c08dac21ad1e66626e5154d

memory/4964-15-0x0000000000400000-0x0000000000431000-memory.dmp

memory/4552-18-0x0000000000400000-0x0000000000431000-memory.dmp

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

MD5 f6ded6959fb77f028c1fc4610cf98ac9
SHA1 86878df65adbc4fc768d21851ed844e0288f1f0c
SHA256 e81200edb8bdeb4f0cf6f7b5ffa97452fe542e17c1667c25ea916f895ad39286
SHA512 6a4196bd40fdd61c3e086a7f92186cbc8ee45058263d123889394c2f850f11e60768667f8e365c37cefe0e8fc245de23221fb382d095acbb53ac9d6a7552c892

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

MD5 a01dba4c45102fc15292fd5591166536
SHA1 d96191c30e0f09439d8547f4ededbf6726ccd54b
SHA256 cc2f9d3db04690b746c18d40c70f8dbc9ca18520b68619d9ccaeac500af98904
SHA512 277a86f44c2648668205cd6c3c9f83feef147a5ad10839a130713eee9c931c26088d4dd95798b1d0e69f3439239abdee79d37656ad3963147a878a9433d60d32

memory/4964-21-0x0000000000400000-0x0000000000431000-memory.dmp

memory/4964-23-0x0000000000400000-0x0000000000431000-memory.dmp

memory/4964-29-0x0000000000400000-0x0000000000431000-memory.dmp