Malware Analysis Report

2024-11-16 13:28

Sample ID 240809-1y111svglb
Target 60f89e3e9894c34ff370e6136c3abe657055577a07593ec7f74135915eaf454f
SHA256 60f89e3e9894c34ff370e6136c3abe657055577a07593ec7f74135915eaf454f
Tags
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

60f89e3e9894c34ff370e6136c3abe657055577a07593ec7f74135915eaf454f

Threat Level: Known bad

The file 60f89e3e9894c34ff370e6136c3abe657055577a07593ec7f74135915eaf454f was found to be: Known bad.

Malicious Activity Summary

urelas discovery trojan

Urelas

Deletes itself

Loads dropped DLL

Executes dropped EXE

Checks computer location settings

Unsigned PE

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-09 22:04

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-09 22:04

Reported

2024-08-09 22:06

Platform

win7-20240729-en

Max time kernel

89s

Max time network

90s

Command Line

"C:\Users\Admin\AppData\Local\Temp\60f89e3e9894c34ff370e6136c3abe657055577a07593ec7f74135915eaf454f.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\biudfw.exe 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\60f89e3e9894c34ff370e6136c3abe657055577a07593ec7f74135915eaf454f.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\biudfw.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\60f89e3e9894c34ff370e6136c3abe657055577a07593ec7f74135915eaf454f.exe

"C:\Users\Admin\AppData\Local\Temp\60f89e3e9894c34ff370e6136c3abe657055577a07593ec7f74135915eaf454f.exe"

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

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

C:\Windows\SysWOW64\cmd.exe

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

Network

Country Destination Domain Proto
KR 218.54.47.76:11120 tcp
KR 218.54.47.74:11150 tcp
KR 218.54.47.76:11170 tcp
KR 218.54.47.77:11150 tcp

Files

memory/2128-0-0x0000000000340000-0x0000000000368000-memory.dmp

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

MD5 fb103f5ce52174b0b536e39fac206df3
SHA1 876e822b06ce7be8a87e1ecf0a969152493d0fa7
SHA256 7b724943476b15f5c311446d580486f688d29765bb3d7a390365f14c060d90de
SHA512 f408148e019b3c36501a054d05b3d469cc07fef4b17429e10b7bb22f968aaed0b1f78269f42c7d0f701bd39a934657a0188bc8621b17d6dff4ce1760d78bfbc4

memory/2128-7-0x0000000000460000-0x0000000000488000-memory.dmp

memory/2336-11-0x0000000000180000-0x00000000001A8000-memory.dmp

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

MD5 66bb0358c8c0e12f867acb9d0fdd0374
SHA1 948717a872e2f30b11c0c8c477ec23dda8bfe6ca
SHA256 b89c470f84f63fcfce53bb2f3057ac7c473bf19c7ab40eeae5afde28261c219a
SHA512 22060c0067a762219a3f53cc3d6dde28ffe6649355e6ba81946f7d80bff7539329befff32c3a4bf871a69e9845248ce1b9fc98892f98048150a14ef749f7377d

memory/2128-18-0x0000000000340000-0x0000000000368000-memory.dmp

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

MD5 a250860c0687ed9dda488805c025a2d2
SHA1 0c181ed3b46463d35631ca169f0928c33a1da389
SHA256 3947c34dfc780b424a3207c6ebe12f667bcb839733107f7a94fe495ec705cb37
SHA512 0286fcd24203ef574c9fc37200e4b0e65d58296162aa89b5424ab48b814bd237e609ab7eaf42a69bdad2ab6414bfbbfaec4757e28b29c69752e0e65a653f665a

memory/2336-21-0x0000000000180000-0x00000000001A8000-memory.dmp

memory/2336-23-0x0000000000180000-0x00000000001A8000-memory.dmp

memory/2336-30-0x0000000000180000-0x00000000001A8000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-09 22:04

Reported

2024-08-09 22:06

Platform

win10v2004-20240802-en

Max time kernel

139s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\60f89e3e9894c34ff370e6136c3abe657055577a07593ec7f74135915eaf454f.exe"

Signatures

Urelas

trojan urelas

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\60f89e3e9894c34ff370e6136c3abe657055577a07593ec7f74135915eaf454f.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\biudfw.exe 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\60f89e3e9894c34ff370e6136c3abe657055577a07593ec7f74135915eaf454f.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\biudfw.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\60f89e3e9894c34ff370e6136c3abe657055577a07593ec7f74135915eaf454f.exe

"C:\Users\Admin\AppData\Local\Temp\60f89e3e9894c34ff370e6136c3abe657055577a07593ec7f74135915eaf454f.exe"

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

"C:\Users\Admin\AppData\Local\Temp\biudfw.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 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
KR 218.54.47.76:11120 tcp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
KR 218.54.47.74:11150 tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
KR 218.54.47.76:11170 tcp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
KR 218.54.47.77:11150 tcp
NL 52.111.243.31:443 tcp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp

Files

memory/4512-0-0x0000000000B00000-0x0000000000B28000-memory.dmp

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

MD5 f9579104b8e0273877208b48d39ec0d9
SHA1 35c8f2bb1d0d0bc64004f57187d574c992319e82
SHA256 56ea39e93e175b5be9afb5571d41da8c69be60ad08792ee7d909bfa1ecc735cb
SHA512 532dd9f5c4dd2dcfe9d57f3bbb9a194685aac9f044a2222f0995b9fcda29b22a69021c1042a90061dd280a87a022fc4279de37e9f0fa0971345a0afb54109cf3

memory/2728-15-0x0000000000E90000-0x0000000000EB8000-memory.dmp

memory/4512-18-0x0000000000B00000-0x0000000000B28000-memory.dmp

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

MD5 66bb0358c8c0e12f867acb9d0fdd0374
SHA1 948717a872e2f30b11c0c8c477ec23dda8bfe6ca
SHA256 b89c470f84f63fcfce53bb2f3057ac7c473bf19c7ab40eeae5afde28261c219a
SHA512 22060c0067a762219a3f53cc3d6dde28ffe6649355e6ba81946f7d80bff7539329befff32c3a4bf871a69e9845248ce1b9fc98892f98048150a14ef749f7377d

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

MD5 a250860c0687ed9dda488805c025a2d2
SHA1 0c181ed3b46463d35631ca169f0928c33a1da389
SHA256 3947c34dfc780b424a3207c6ebe12f667bcb839733107f7a94fe495ec705cb37
SHA512 0286fcd24203ef574c9fc37200e4b0e65d58296162aa89b5424ab48b814bd237e609ab7eaf42a69bdad2ab6414bfbbfaec4757e28b29c69752e0e65a653f665a

memory/2728-21-0x0000000000E90000-0x0000000000EB8000-memory.dmp

memory/2728-23-0x0000000000E90000-0x0000000000EB8000-memory.dmp

memory/2728-29-0x0000000000E90000-0x0000000000EB8000-memory.dmp