Malware Analysis Report

2024-11-16 13:26

Sample ID 241008-1e49bsshld
Target 5f1c3584a8aec5e1feac12ce5d696027f929805cc2cea1accac51aaa78051870N
SHA256 5f1c3584a8aec5e1feac12ce5d696027f929805cc2cea1accac51aaa78051870
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

5f1c3584a8aec5e1feac12ce5d696027f929805cc2cea1accac51aaa78051870

Threat Level: Known bad

The file 5f1c3584a8aec5e1feac12ce5d696027f929805cc2cea1accac51aaa78051870N was found to be: Known bad.

Malicious Activity Summary

urelas discovery trojan

Urelas

Loads dropped DLL

Deletes itself

Executes dropped EXE

Checks computer location settings

Unsigned PE

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-08 21:34

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-08 21:34

Reported

2024-10-08 21:36

Platform

win7-20240704-en

Max time kernel

119s

Max time network

78s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5f1c3584a8aec5e1feac12ce5d696027f929805cc2cea1accac51aaa78051870N.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\xonoa.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\meuwg.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\meuwg.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\5f1c3584a8aec5e1feac12ce5d696027f929805cc2cea1accac51aaa78051870N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\xonoa.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 1448 wrote to memory of 1924 N/A C:\Users\Admin\AppData\Local\Temp\5f1c3584a8aec5e1feac12ce5d696027f929805cc2cea1accac51aaa78051870N.exe C:\Users\Admin\AppData\Local\Temp\xonoa.exe
PID 1448 wrote to memory of 1924 N/A C:\Users\Admin\AppData\Local\Temp\5f1c3584a8aec5e1feac12ce5d696027f929805cc2cea1accac51aaa78051870N.exe C:\Users\Admin\AppData\Local\Temp\xonoa.exe
PID 1448 wrote to memory of 1924 N/A C:\Users\Admin\AppData\Local\Temp\5f1c3584a8aec5e1feac12ce5d696027f929805cc2cea1accac51aaa78051870N.exe C:\Users\Admin\AppData\Local\Temp\xonoa.exe
PID 1448 wrote to memory of 1924 N/A C:\Users\Admin\AppData\Local\Temp\5f1c3584a8aec5e1feac12ce5d696027f929805cc2cea1accac51aaa78051870N.exe C:\Users\Admin\AppData\Local\Temp\xonoa.exe
PID 1448 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\5f1c3584a8aec5e1feac12ce5d696027f929805cc2cea1accac51aaa78051870N.exe C:\Windows\SysWOW64\cmd.exe
PID 1448 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\5f1c3584a8aec5e1feac12ce5d696027f929805cc2cea1accac51aaa78051870N.exe C:\Windows\SysWOW64\cmd.exe
PID 1448 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\5f1c3584a8aec5e1feac12ce5d696027f929805cc2cea1accac51aaa78051870N.exe C:\Windows\SysWOW64\cmd.exe
PID 1448 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\5f1c3584a8aec5e1feac12ce5d696027f929805cc2cea1accac51aaa78051870N.exe C:\Windows\SysWOW64\cmd.exe
PID 1924 wrote to memory of 2932 N/A C:\Users\Admin\AppData\Local\Temp\xonoa.exe C:\Users\Admin\AppData\Local\Temp\meuwg.exe
PID 1924 wrote to memory of 2932 N/A C:\Users\Admin\AppData\Local\Temp\xonoa.exe C:\Users\Admin\AppData\Local\Temp\meuwg.exe
PID 1924 wrote to memory of 2932 N/A C:\Users\Admin\AppData\Local\Temp\xonoa.exe C:\Users\Admin\AppData\Local\Temp\meuwg.exe
PID 1924 wrote to memory of 2932 N/A C:\Users\Admin\AppData\Local\Temp\xonoa.exe C:\Users\Admin\AppData\Local\Temp\meuwg.exe

Processes

C:\Users\Admin\AppData\Local\Temp\5f1c3584a8aec5e1feac12ce5d696027f929805cc2cea1accac51aaa78051870N.exe

"C:\Users\Admin\AppData\Local\Temp\5f1c3584a8aec5e1feac12ce5d696027f929805cc2cea1accac51aaa78051870N.exe"

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

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

C:\Windows\SysWOW64\cmd.exe

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

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

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

Network

Country Destination Domain Proto
KR 218.54.31.226:11110 tcp
KR 1.234.83.146:11170 tcp
KR 218.54.31.165:11110 tcp
JP 133.242.129.155:11110 tcp

Files

memory/1448-0-0x0000000000FE0000-0x0000000001041000-memory.dmp

memory/1448-7-0x0000000000F00000-0x0000000000F61000-memory.dmp

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

MD5 c4c8b53eaffd35fd70fac3580e01a9bd
SHA1 cea0d8c1ac769b3adf93f2b08f87221ff7666c00
SHA256 53492e9ebc3317c8a73bc191e46b11045144920a8499ff8f90069da7983fc86b
SHA512 81024923024501bfc8253585b06802111c333c06f1079de24bb58a31b2988e645ce16a8515ec6d3f09ab7f3b3bd3523184097f5b227a0a5ad2ea88b623ba32f7

memory/1924-17-0x0000000001130000-0x0000000001191000-memory.dmp

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

MD5 b4aab8ded76f51b3375e28f25e517dad
SHA1 3d17a3e98fd39e4872f26a8a78fc2b0cae93c1cf
SHA256 a2d75d31239679d149969b72e90a105ae5774e45d07d545a689c9b5c2dae62ed
SHA512 3e6f2263031485e859f94ae7526aa421a6e0c06b640521948216d16338160f57c88f84ddf2e494372f7a67a9c0a1506cfc4dcb10b4d4b5de27e02156f3270af5

memory/1448-19-0x0000000000FE0000-0x0000000001041000-memory.dmp

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

MD5 a05fa5a5a4635ad7c8bee9a7510341d0
SHA1 437d89681cbb91c56756b67505f825b18143ca62
SHA256 eee0de9cd353bf57859979e54d0871fb1f3c98ec63a31c0f8f3625cfbf360e73
SHA512 ba70d0edf51d72d3f5ac221db346557bbacd4a2e5b87d2bf9b65c7e566a594063159a5bae9b87ffd9f4c697b15221cc643f1bf72fd5532c37ba5eeeb1164ff37

memory/1924-22-0x0000000001130000-0x0000000001191000-memory.dmp

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

MD5 5c30e96673fdbf5a5ec8ea82293bcdf1
SHA1 e6f38951ec1a2fe3421ccfd8672cc2a0e64ae267
SHA256 89b69183b5ab435d1df0a8e12ded4cd10461e4b91152ce325988240cf093b24b
SHA512 2fd3d6577e591d2ca39b99f0ddf99e3836dcf9ba8b1f51305a852cce826a467b59746308f8f6ae81f4e0fefc7b01c9e2f16200bd06766fdecfe9e85f981fb193

memory/1924-41-0x0000000001130000-0x0000000001191000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-08 21:34

Reported

2024-10-08 21:37

Platform

win10v2004-20241007-en

Max time kernel

120s

Max time network

97s

Command Line

"C:\Users\Admin\AppData\Local\Temp\5f1c3584a8aec5e1feac12ce5d696027f929805cc2cea1accac51aaa78051870N.exe"

Signatures

Urelas

trojan urelas

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\5f1c3584a8aec5e1feac12ce5d696027f929805cc2cea1accac51aaa78051870N.exe N/A
Key value queried \REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\vohiv.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\vohiv.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\xeysi.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\5f1c3584a8aec5e1feac12ce5d696027f929805cc2cea1accac51aaa78051870N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\vohiv.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\xeysi.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 440 wrote to memory of 2316 N/A C:\Users\Admin\AppData\Local\Temp\5f1c3584a8aec5e1feac12ce5d696027f929805cc2cea1accac51aaa78051870N.exe C:\Users\Admin\AppData\Local\Temp\vohiv.exe
PID 440 wrote to memory of 2316 N/A C:\Users\Admin\AppData\Local\Temp\5f1c3584a8aec5e1feac12ce5d696027f929805cc2cea1accac51aaa78051870N.exe C:\Users\Admin\AppData\Local\Temp\vohiv.exe
PID 440 wrote to memory of 2316 N/A C:\Users\Admin\AppData\Local\Temp\5f1c3584a8aec5e1feac12ce5d696027f929805cc2cea1accac51aaa78051870N.exe C:\Users\Admin\AppData\Local\Temp\vohiv.exe
PID 440 wrote to memory of 1676 N/A C:\Users\Admin\AppData\Local\Temp\5f1c3584a8aec5e1feac12ce5d696027f929805cc2cea1accac51aaa78051870N.exe C:\Windows\SysWOW64\cmd.exe
PID 440 wrote to memory of 1676 N/A C:\Users\Admin\AppData\Local\Temp\5f1c3584a8aec5e1feac12ce5d696027f929805cc2cea1accac51aaa78051870N.exe C:\Windows\SysWOW64\cmd.exe
PID 440 wrote to memory of 1676 N/A C:\Users\Admin\AppData\Local\Temp\5f1c3584a8aec5e1feac12ce5d696027f929805cc2cea1accac51aaa78051870N.exe C:\Windows\SysWOW64\cmd.exe
PID 2316 wrote to memory of 3656 N/A C:\Users\Admin\AppData\Local\Temp\vohiv.exe C:\Users\Admin\AppData\Local\Temp\xeysi.exe
PID 2316 wrote to memory of 3656 N/A C:\Users\Admin\AppData\Local\Temp\vohiv.exe C:\Users\Admin\AppData\Local\Temp\xeysi.exe
PID 2316 wrote to memory of 3656 N/A C:\Users\Admin\AppData\Local\Temp\vohiv.exe C:\Users\Admin\AppData\Local\Temp\xeysi.exe

Processes

C:\Users\Admin\AppData\Local\Temp\5f1c3584a8aec5e1feac12ce5d696027f929805cc2cea1accac51aaa78051870N.exe

"C:\Users\Admin\AppData\Local\Temp\5f1c3584a8aec5e1feac12ce5d696027f929805cc2cea1accac51aaa78051870N.exe"

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

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

C:\Windows\SysWOW64\cmd.exe

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

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 150.171.28.10:443 g.bing.com tcp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
KR 218.54.31.226:11110 tcp
KR 1.234.83.146:11170 tcp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 68.209.201.84.in-addr.arpa udp
KR 218.54.31.165:11110 tcp
JP 133.242.129.155:11110 tcp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp

Files

memory/440-0-0x0000000000C50000-0x0000000000CB1000-memory.dmp

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

MD5 bae1375e606e2c5b753cbcb01cacf257
SHA1 e319e1407bd3be42371f78efee97537e3a0cf5a7
SHA256 74cd65d529efa5ff50e547c067eb92f268b7685a00dfa69009a3005f0787173c
SHA512 f79d9b4695b8d121ba14530b7a79c9df49299a932302d948728f090702205e186223b6681661942f0b32a24f913af7d1c278d4295df1a25402efc452f0d2a045

memory/2316-10-0x0000000000FD0000-0x0000000001031000-memory.dmp

memory/440-15-0x0000000000C50000-0x0000000000CB1000-memory.dmp

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

MD5 b4aab8ded76f51b3375e28f25e517dad
SHA1 3d17a3e98fd39e4872f26a8a78fc2b0cae93c1cf
SHA256 a2d75d31239679d149969b72e90a105ae5774e45d07d545a689c9b5c2dae62ed
SHA512 3e6f2263031485e859f94ae7526aa421a6e0c06b640521948216d16338160f57c88f84ddf2e494372f7a67a9c0a1506cfc4dcb10b4d4b5de27e02156f3270af5

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

MD5 b86b245ffa3b0c14b2be77763302ba95
SHA1 28f1e5361147759315ddb1685ab128302f3b5831
SHA256 88cb67eb6fa298ca7ebe3f8370a69a9625c3efb83d106c35b7b167f85be796ac
SHA512 efff87d411c0df018e3921885cd4f37f910acb9713e9e01972a1c8b57b3bd5042bee958f0d70e36ed33a9140ee0fbde2e4a05b9c3f7364e4216819b4244e02cd

memory/2316-18-0x0000000000FD0000-0x0000000001031000-memory.dmp

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

MD5 9c15290e73835141ccf9321f959da611
SHA1 75751b6fa958f3b7c5982cad655249a59967e6cb
SHA256 98d3b803b9133505bf533c148fdd26f3e42be76ae286af886679a827cebe233d
SHA512 c92bd6622b21a96b44bf5f8e03a5b1c8a1ea4b8e1c0ea5608ebb8e482a1f1f19b91797e06389fe783e0a32587db482193cdf076d4b2d44c94d7276e10e075d54

memory/2316-36-0x0000000000FD0000-0x0000000001031000-memory.dmp