Malware Analysis Report

2024-11-16 13:26

Sample ID 241008-w8l8dswdke
Target 0dda00ec726d2719d4542cf0eb4b29ffef673db4a2202db8f71b18ca18bd554e
SHA256 0dda00ec726d2719d4542cf0eb4b29ffef673db4a2202db8f71b18ca18bd554e
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

0dda00ec726d2719d4542cf0eb4b29ffef673db4a2202db8f71b18ca18bd554e

Threat Level: Known bad

The file 0dda00ec726d2719d4542cf0eb4b29ffef673db4a2202db8f71b18ca18bd554e was found to be: Known bad.

Malicious Activity Summary

upx urelas discovery trojan

Urelas family

Urelas

Deletes itself

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

UPX packed file

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-08 18:35

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

2024-10-08 18:35

Reported

2024-10-08 18:38

Platform

win7-20240903-en

Max time kernel

48s

Max time network

43s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0dda00ec726d2719d4542cf0eb4b29ffef673db4a2202db8f71b18ca18bd554e.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\0dda00ec726d2719d4542cf0eb4b29ffef673db4a2202db8f71b18ca18bd554e.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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2368 wrote to memory of 2704 N/A C:\Users\Admin\AppData\Local\Temp\0dda00ec726d2719d4542cf0eb4b29ffef673db4a2202db8f71b18ca18bd554e.exe C:\Users\Admin\AppData\Local\Temp\huter.exe
PID 2368 wrote to memory of 2704 N/A C:\Users\Admin\AppData\Local\Temp\0dda00ec726d2719d4542cf0eb4b29ffef673db4a2202db8f71b18ca18bd554e.exe C:\Users\Admin\AppData\Local\Temp\huter.exe
PID 2368 wrote to memory of 2704 N/A C:\Users\Admin\AppData\Local\Temp\0dda00ec726d2719d4542cf0eb4b29ffef673db4a2202db8f71b18ca18bd554e.exe C:\Users\Admin\AppData\Local\Temp\huter.exe
PID 2368 wrote to memory of 2704 N/A C:\Users\Admin\AppData\Local\Temp\0dda00ec726d2719d4542cf0eb4b29ffef673db4a2202db8f71b18ca18bd554e.exe C:\Users\Admin\AppData\Local\Temp\huter.exe
PID 2368 wrote to memory of 2704 N/A C:\Users\Admin\AppData\Local\Temp\0dda00ec726d2719d4542cf0eb4b29ffef673db4a2202db8f71b18ca18bd554e.exe C:\Users\Admin\AppData\Local\Temp\huter.exe
PID 2368 wrote to memory of 2704 N/A C:\Users\Admin\AppData\Local\Temp\0dda00ec726d2719d4542cf0eb4b29ffef673db4a2202db8f71b18ca18bd554e.exe C:\Users\Admin\AppData\Local\Temp\huter.exe
PID 2368 wrote to memory of 2704 N/A C:\Users\Admin\AppData\Local\Temp\0dda00ec726d2719d4542cf0eb4b29ffef673db4a2202db8f71b18ca18bd554e.exe C:\Users\Admin\AppData\Local\Temp\huter.exe
PID 2368 wrote to memory of 2068 N/A C:\Users\Admin\AppData\Local\Temp\0dda00ec726d2719d4542cf0eb4b29ffef673db4a2202db8f71b18ca18bd554e.exe C:\Windows\SysWOW64\cmd.exe
PID 2368 wrote to memory of 2068 N/A C:\Users\Admin\AppData\Local\Temp\0dda00ec726d2719d4542cf0eb4b29ffef673db4a2202db8f71b18ca18bd554e.exe C:\Windows\SysWOW64\cmd.exe
PID 2368 wrote to memory of 2068 N/A C:\Users\Admin\AppData\Local\Temp\0dda00ec726d2719d4542cf0eb4b29ffef673db4a2202db8f71b18ca18bd554e.exe C:\Windows\SysWOW64\cmd.exe
PID 2368 wrote to memory of 2068 N/A C:\Users\Admin\AppData\Local\Temp\0dda00ec726d2719d4542cf0eb4b29ffef673db4a2202db8f71b18ca18bd554e.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Users\Admin\AppData\Local\Temp\0dda00ec726d2719d4542cf0eb4b29ffef673db4a2202db8f71b18ca18bd554e.exe

"C:\Users\Admin\AppData\Local\Temp\0dda00ec726d2719d4542cf0eb4b29ffef673db4a2202db8f71b18ca18bd554e.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 211.57.201.131:11120 tcp
KR 211.57.201.131:11170 tcp

Files

memory/2368-0-0x0000000000260000-0x0000000000291000-memory.dmp

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

MD5 33f98a341fab62c52f6545fb137b927e
SHA1 b35e5678167b74fba44f9a963affb051cb471463
SHA256 f9332e6a43f6d02297cd910cefcd583e0fcf885cf4da7886a1bd124f41bbdadb
SHA512 4cd103d4e9db65aa6d75511f7d66e4f87bf33823b7df7f5194e3df6b70e7a6699ca8f291f07fc52d9cb0df608d2d1e23ec3f6426f07bf3b0a1f4ea018c1afae2

memory/2368-6-0x00000000004F0000-0x0000000000521000-memory.dmp

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

MD5 790d13839f31c639cd8de46da32d5651
SHA1 5ea6127c75929b7f00a5a8d3b51167ad50d2f47e
SHA256 799234648766c4aa0ab5da3f93544ac41639b22674d312140cd48a3b12c759f1
SHA512 f246635909a7ba6ce7b9b945d293e73c72344458422303f5a6bb99630d63d35d349520d316d23e118badb937da9066f5a7c6112d9787cf54ba2322bb776477d8

memory/2368-18-0x0000000000260000-0x0000000000291000-memory.dmp

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

MD5 55d2fdd1432483e3ba86ebeccfe130b6
SHA1 7280b14d708800fd15303b2caa8628a0fbd7aa08
SHA256 5cfd1668ec0e5f3b5f8d04e54091d6f173bede6e6f9bb418819fd550095139fb
SHA512 36fd81128552356672b52936699c5e6362268c8131857e778e02a6862600c4feb20d13063d5f838e0887cb5083c648d39fe07faffba18c26387760752f9dd1f3

memory/2704-21-0x0000000000380000-0x00000000003B1000-memory.dmp

memory/2704-23-0x0000000000380000-0x00000000003B1000-memory.dmp

memory/2704-26-0x0000000000380000-0x00000000003B1000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-08 18:35

Reported

2024-10-08 18:38

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0dda00ec726d2719d4542cf0eb4b29ffef673db4a2202db8f71b18ca18bd554e.exe"

Signatures

Urelas

trojan urelas

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\0dda00ec726d2719d4542cf0eb4b29ffef673db4a2202db8f71b18ca18bd554e.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\0dda00ec726d2719d4542cf0eb4b29ffef673db4a2202db8f71b18ca18bd554e.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\0dda00ec726d2719d4542cf0eb4b29ffef673db4a2202db8f71b18ca18bd554e.exe

"C:\Users\Admin\AppData\Local\Temp\0dda00ec726d2719d4542cf0eb4b29ffef673db4a2202db8f71b18ca18bd554e.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 150.171.27.10:443 g.bing.com tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 99.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
KR 211.57.201.131:11120 tcp
KR 211.57.201.131:11170 tcp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 73.208.201.84.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 68.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp

Files

memory/4460-0-0x00000000000C0000-0x00000000000F1000-memory.dmp

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

MD5 6d688df215d02c3c2f01c34035e3c926
SHA1 cfbd94f67ae8143a99986b3954ac80e98313f5b4
SHA256 db9e65b73a48f8e779eb8868cb866e699f41f3ce1d6c0872d24b98560ab05dc9
SHA512 34ebaf969d3ae6df540f6a354fe85825f4a5ac8627e43b04a120916c28230033d631088f347f329d4b824eb820e91308ba0327a2b4a0aca6837f14779cfd677d

memory/3708-15-0x0000000000B00000-0x0000000000B31000-memory.dmp

memory/4460-18-0x00000000000C0000-0x00000000000F1000-memory.dmp

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

MD5 790d13839f31c639cd8de46da32d5651
SHA1 5ea6127c75929b7f00a5a8d3b51167ad50d2f47e
SHA256 799234648766c4aa0ab5da3f93544ac41639b22674d312140cd48a3b12c759f1
SHA512 f246635909a7ba6ce7b9b945d293e73c72344458422303f5a6bb99630d63d35d349520d316d23e118badb937da9066f5a7c6112d9787cf54ba2322bb776477d8

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

MD5 55d2fdd1432483e3ba86ebeccfe130b6
SHA1 7280b14d708800fd15303b2caa8628a0fbd7aa08
SHA256 5cfd1668ec0e5f3b5f8d04e54091d6f173bede6e6f9bb418819fd550095139fb
SHA512 36fd81128552356672b52936699c5e6362268c8131857e778e02a6862600c4feb20d13063d5f838e0887cb5083c648d39fe07faffba18c26387760752f9dd1f3

memory/3708-21-0x0000000000B00000-0x0000000000B31000-memory.dmp

memory/3708-23-0x0000000000B00000-0x0000000000B31000-memory.dmp

memory/3708-25-0x0000000000B00000-0x0000000000B31000-memory.dmp