Malware Analysis Report

2024-11-16 13:26

Sample ID 240804-yr7h4syemh
Target 2d34827e993e87c66f1b615ef3c5cc1dc22cb23be3d8bca3a5eb8fa6a9227110
SHA256 2d34827e993e87c66f1b615ef3c5cc1dc22cb23be3d8bca3a5eb8fa6a9227110
Tags
urelas discovery trojan upx
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

2d34827e993e87c66f1b615ef3c5cc1dc22cb23be3d8bca3a5eb8fa6a9227110

Threat Level: Known bad

The file 2d34827e993e87c66f1b615ef3c5cc1dc22cb23be3d8bca3a5eb8fa6a9227110 was found to be: Known bad.

Malicious Activity Summary

urelas discovery trojan upx

Urelas

Urelas family

Deletes itself

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

UPX packed file

Unsigned PE

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-04 20:02

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 20:02

Reported

2024-08-04 20:04

Platform

win7-20240704-en

Max time kernel

121s

Max time network

121s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2d34827e993e87c66f1b615ef3c5cc1dc22cb23be3d8bca3a5eb8fa6a9227110.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
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\2d34827e993e87c66f1b615ef3c5cc1dc22cb23be3d8bca3a5eb8fa6a9227110.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\2d34827e993e87c66f1b615ef3c5cc1dc22cb23be3d8bca3a5eb8fa6a9227110.exe

"C:\Users\Admin\AppData\Local\Temp\2d34827e993e87c66f1b615ef3c5cc1dc22cb23be3d8bca3a5eb8fa6a9227110.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/1712-0-0x0000000000400000-0x0000000000431000-memory.dmp

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

MD5 efb76268d48e29559d612d42925dcc05
SHA1 be08ef8addb4e1e43836d54613fb380e8fd78dd3
SHA256 5dd0e48184a4ba67098631a4fac825b8f8a749c3d8da356798b242a8dcb6c68e
SHA512 dc85a993b25095fbfaa196be336aaf4c8d2c1576688e6e46ff08be7bb028003796ffc31d64b2a0ca664b4918d134d5e02d20508c4cb1b2990c45af9e72e25c39

memory/3044-11-0x0000000000400000-0x0000000000431000-memory.dmp

memory/1712-9-0x0000000001FB0000-0x0000000001FE1000-memory.dmp

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

MD5 0cd20a6aa068a8ca50a9cc47b37f1a1d
SHA1 8f94f0f34ba90d2dec7f8d81a4536d21b5871057
SHA256 1fbc0d12b5862e2d74d336a8294d03549d6c6e4c1b66e3eab58cb9b9b74e0cf1
SHA512 dbdb0fcc0053841e7a5132a379c4c4d2f0e5c9293d2f77393d6216dc8a8de96924d381fb892766bd9d87e44694da4022e3d897de27e50d1d8d471e44282062ef

memory/1712-19-0x0000000000400000-0x0000000000431000-memory.dmp

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

MD5 a01dba4c45102fc15292fd5591166536
SHA1 d96191c30e0f09439d8547f4ededbf6726ccd54b
SHA256 cc2f9d3db04690b746c18d40c70f8dbc9ca18520b68619d9ccaeac500af98904
SHA512 277a86f44c2648668205cd6c3c9f83feef147a5ad10839a130713eee9c931c26088d4dd95798b1d0e69f3439239abdee79d37656ad3963147a878a9433d60d32

memory/3044-22-0x0000000000400000-0x0000000000431000-memory.dmp

memory/3044-24-0x0000000000400000-0x0000000000431000-memory.dmp

memory/3044-31-0x0000000000400000-0x0000000000431000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-04 20:02

Reported

2024-08-04 20:04

Platform

win10v2004-20240802-en

Max time kernel

120s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2d34827e993e87c66f1b615ef3c5cc1dc22cb23be3d8bca3a5eb8fa6a9227110.exe"

Signatures

Urelas

trojan urelas

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2d34827e993e87c66f1b615ef3c5cc1dc22cb23be3d8bca3a5eb8fa6a9227110.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\huter.exe N/A
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\2d34827e993e87c66f1b615ef3c5cc1dc22cb23be3d8bca3a5eb8fa6a9227110.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2d34827e993e87c66f1b615ef3c5cc1dc22cb23be3d8bca3a5eb8fa6a9227110.exe

"C:\Users\Admin\AppData\Local\Temp\2d34827e993e87c66f1b615ef3c5cc1dc22cb23be3d8bca3a5eb8fa6a9227110.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 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 147.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 25.140.123.92.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
KR 112.175.88.209:11120 tcp
KR 112.175.88.208:11150 tcp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
KR 112.175.88.209:11170 tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
KR 112.175.88.207:11150 tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp

Files

memory/2724-0-0x0000000000400000-0x0000000000431000-memory.dmp

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

MD5 87d419e44989def683524154d27f73c6
SHA1 272df1807989b4eadee8977327641443753cec24
SHA256 ec51804f7822b34b4106070e52f57aa5df8feff6ad940acd75ce7756497917c1
SHA512 f6a12e7abf1a1aaa5889b50a49ffa20542b48412d3075cf2b6ef2f8f84f7d44d555dac4dc54e7e84d2ee60efc57fbb3fb9bef400e1291d99a6370946c84c5d0f

memory/208-14-0x0000000000400000-0x0000000000431000-memory.dmp

memory/2724-18-0x0000000000400000-0x0000000000431000-memory.dmp

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

MD5 0cd20a6aa068a8ca50a9cc47b37f1a1d
SHA1 8f94f0f34ba90d2dec7f8d81a4536d21b5871057
SHA256 1fbc0d12b5862e2d74d336a8294d03549d6c6e4c1b66e3eab58cb9b9b74e0cf1
SHA512 dbdb0fcc0053841e7a5132a379c4c4d2f0e5c9293d2f77393d6216dc8a8de96924d381fb892766bd9d87e44694da4022e3d897de27e50d1d8d471e44282062ef

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

MD5 a01dba4c45102fc15292fd5591166536
SHA1 d96191c30e0f09439d8547f4ededbf6726ccd54b
SHA256 cc2f9d3db04690b746c18d40c70f8dbc9ca18520b68619d9ccaeac500af98904
SHA512 277a86f44c2648668205cd6c3c9f83feef147a5ad10839a130713eee9c931c26088d4dd95798b1d0e69f3439239abdee79d37656ad3963147a878a9433d60d32

memory/208-21-0x0000000000400000-0x0000000000431000-memory.dmp

memory/208-23-0x0000000000400000-0x0000000000431000-memory.dmp

memory/208-29-0x0000000000400000-0x0000000000431000-memory.dmp