Malware Analysis Report

2024-11-16 13:25

Sample ID 241010-3ey4essdlh
Target 14c96e7b058b68951b9288b46f135f05420f889f1ce60ad14acd0806cc08dae6N
SHA256 14c96e7b058b68951b9288b46f135f05420f889f1ce60ad14acd0806cc08dae6
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

14c96e7b058b68951b9288b46f135f05420f889f1ce60ad14acd0806cc08dae6

Threat Level: Known bad

The file 14c96e7b058b68951b9288b46f135f05420f889f1ce60ad14acd0806cc08dae6N was found to be: Known bad.

Malicious Activity Summary

urelas discovery trojan

Urelas

Loads dropped DLL

Checks computer location settings

Deletes itself

Executes dropped EXE

System Location Discovery: System Language Discovery

Unsigned PE

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-10 23:26

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-10 23:26

Reported

2024-10-10 23:28

Platform

win7-20240903-en

Max time kernel

119s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\14c96e7b058b68951b9288b46f135f05420f889f1ce60ad14acd0806cc08dae6N.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\nuzim.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\pewai.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\14c96e7b058b68951b9288b46f135f05420f889f1ce60ad14acd0806cc08dae6N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\nuzim.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\pewai.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1732 wrote to memory of 2544 N/A C:\Users\Admin\AppData\Local\Temp\14c96e7b058b68951b9288b46f135f05420f889f1ce60ad14acd0806cc08dae6N.exe C:\Users\Admin\AppData\Local\Temp\nuzim.exe
PID 1732 wrote to memory of 2544 N/A C:\Users\Admin\AppData\Local\Temp\14c96e7b058b68951b9288b46f135f05420f889f1ce60ad14acd0806cc08dae6N.exe C:\Users\Admin\AppData\Local\Temp\nuzim.exe
PID 1732 wrote to memory of 2544 N/A C:\Users\Admin\AppData\Local\Temp\14c96e7b058b68951b9288b46f135f05420f889f1ce60ad14acd0806cc08dae6N.exe C:\Users\Admin\AppData\Local\Temp\nuzim.exe
PID 1732 wrote to memory of 2544 N/A C:\Users\Admin\AppData\Local\Temp\14c96e7b058b68951b9288b46f135f05420f889f1ce60ad14acd0806cc08dae6N.exe C:\Users\Admin\AppData\Local\Temp\nuzim.exe
PID 1732 wrote to memory of 1536 N/A C:\Users\Admin\AppData\Local\Temp\14c96e7b058b68951b9288b46f135f05420f889f1ce60ad14acd0806cc08dae6N.exe C:\Windows\SysWOW64\cmd.exe
PID 1732 wrote to memory of 1536 N/A C:\Users\Admin\AppData\Local\Temp\14c96e7b058b68951b9288b46f135f05420f889f1ce60ad14acd0806cc08dae6N.exe C:\Windows\SysWOW64\cmd.exe
PID 1732 wrote to memory of 1536 N/A C:\Users\Admin\AppData\Local\Temp\14c96e7b058b68951b9288b46f135f05420f889f1ce60ad14acd0806cc08dae6N.exe C:\Windows\SysWOW64\cmd.exe
PID 1732 wrote to memory of 1536 N/A C:\Users\Admin\AppData\Local\Temp\14c96e7b058b68951b9288b46f135f05420f889f1ce60ad14acd0806cc08dae6N.exe C:\Windows\SysWOW64\cmd.exe
PID 2544 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\nuzim.exe C:\Users\Admin\AppData\Local\Temp\pewai.exe
PID 2544 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\nuzim.exe C:\Users\Admin\AppData\Local\Temp\pewai.exe
PID 2544 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\nuzim.exe C:\Users\Admin\AppData\Local\Temp\pewai.exe
PID 2544 wrote to memory of 2672 N/A C:\Users\Admin\AppData\Local\Temp\nuzim.exe C:\Users\Admin\AppData\Local\Temp\pewai.exe

Processes

C:\Users\Admin\AppData\Local\Temp\14c96e7b058b68951b9288b46f135f05420f889f1ce60ad14acd0806cc08dae6N.exe

"C:\Users\Admin\AppData\Local\Temp\14c96e7b058b68951b9288b46f135f05420f889f1ce60ad14acd0806cc08dae6N.exe"

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

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

C:\Windows\SysWOW64\cmd.exe

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

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

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

Network

Country Destination Domain Proto
KR 218.54.31.226:11300 tcp
KR 1.234.83.146:11170 tcp
KR 218.54.31.166:11300 tcp
JP 133.242.129.155:11300 tcp

Files

memory/1732-0-0x0000000000EC0000-0x0000000000F41000-memory.dmp

memory/1732-1-0x0000000000020000-0x0000000000021000-memory.dmp

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

MD5 be80c895c17c9d687a80c2b8a36c5f13
SHA1 9602ddfc852dd677edbe457f53080613e00be567
SHA256 8008688230f0289c4816996f50838e9f2441ee78b74882403254ae3467e3b3d2
SHA512 1ab7e612a4700103c3b77dc77c371206f7ac93006c7133a8d0e6883e838b5c1ada1f20526e5062fc06857ce182c222e68f7232f4c9cfe66196619957341d075d

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

MD5 8710baca62c27f5d88f76bc1ce4d203b
SHA1 af1eac8c75350744e957ad650ae2e36fbf116d6f
SHA256 7b16828981f814a932f48b609f9af4e703bdd0a52651137c53d4de36bbef16ae
SHA512 37901c6bb2abe3f62a171de14b2e99c16b3db46cf7cc0aedbe1504451a763acd10030791d895f225b5803714be61af3fb8b51c8f2ec2cda72ac36760b234581e

memory/2544-21-0x0000000000020000-0x0000000000021000-memory.dmp

memory/2544-20-0x00000000010C0000-0x0000000001141000-memory.dmp

memory/1732-19-0x0000000002620000-0x00000000026A1000-memory.dmp

memory/1732-18-0x0000000000EC0000-0x0000000000F41000-memory.dmp

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

MD5 9eb2296af05edd450bd81f6397196602
SHA1 7ae1222b58a8e66c11b6446c96fbed6fda4817da
SHA256 0e612cf8a452006dfae83c96edae01133150643064abb4d57a0fd21d8b958cc3
SHA512 10eae88c723283225ec7615c2aad02a2ac7a9123a174df4e6d5ab5276b4c2a962456107017400a42f2d0091cbf0c7b9d1ae55a32b4cf0a30c2c693077c57ad7a

memory/2544-24-0x00000000010C0000-0x0000000001141000-memory.dmp

memory/2544-25-0x0000000000020000-0x0000000000021000-memory.dmp

memory/1732-33-0x0000000002620000-0x00000000026A1000-memory.dmp

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

MD5 758e3662884b735bb925dbea17fcd31c
SHA1 dc6b0fd1f53b4c4cfc40265775e2f64f7c9841f9
SHA256 4e0ab29bf86fafa2d3c34746b3086ac70159c989f4fd845bedd077f00dc09383
SHA512 cffb106cbca499437d769427cbd6a1b674808b07a12516f130d164bea50cdf66dce2769b8baf960d2a74dba9ce7bc7d10f925fcd56af0c5f061825a7d16567a2

memory/2544-39-0x0000000001020000-0x00000000010B9000-memory.dmp

memory/2544-43-0x00000000010C0000-0x0000000001141000-memory.dmp

memory/2672-44-0x0000000000390000-0x0000000000429000-memory.dmp

memory/2672-45-0x0000000000390000-0x0000000000429000-memory.dmp

memory/2672-49-0x0000000000390000-0x0000000000429000-memory.dmp

memory/2672-50-0x0000000000390000-0x0000000000429000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-10 23:26

Reported

2024-10-10 23:28

Platform

win10v2004-20241007-en

Max time kernel

119s

Max time network

94s

Command Line

"C:\Users\Admin\AppData\Local\Temp\14c96e7b058b68951b9288b46f135f05420f889f1ce60ad14acd0806cc08dae6N.exe"

Signatures

Urelas

trojan urelas

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\14c96e7b058b68951b9288b46f135f05420f889f1ce60ad14acd0806cc08dae6N.exe N/A
Key value queried \REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\bapea.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\bapea.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\ejxuk.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\14c96e7b058b68951b9288b46f135f05420f889f1ce60ad14acd0806cc08dae6N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\bapea.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\ejxuk.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1356 wrote to memory of 2128 N/A C:\Users\Admin\AppData\Local\Temp\14c96e7b058b68951b9288b46f135f05420f889f1ce60ad14acd0806cc08dae6N.exe C:\Users\Admin\AppData\Local\Temp\bapea.exe
PID 1356 wrote to memory of 2128 N/A C:\Users\Admin\AppData\Local\Temp\14c96e7b058b68951b9288b46f135f05420f889f1ce60ad14acd0806cc08dae6N.exe C:\Users\Admin\AppData\Local\Temp\bapea.exe
PID 1356 wrote to memory of 2128 N/A C:\Users\Admin\AppData\Local\Temp\14c96e7b058b68951b9288b46f135f05420f889f1ce60ad14acd0806cc08dae6N.exe C:\Users\Admin\AppData\Local\Temp\bapea.exe
PID 1356 wrote to memory of 4360 N/A C:\Users\Admin\AppData\Local\Temp\14c96e7b058b68951b9288b46f135f05420f889f1ce60ad14acd0806cc08dae6N.exe C:\Windows\SysWOW64\cmd.exe
PID 1356 wrote to memory of 4360 N/A C:\Users\Admin\AppData\Local\Temp\14c96e7b058b68951b9288b46f135f05420f889f1ce60ad14acd0806cc08dae6N.exe C:\Windows\SysWOW64\cmd.exe
PID 1356 wrote to memory of 4360 N/A C:\Users\Admin\AppData\Local\Temp\14c96e7b058b68951b9288b46f135f05420f889f1ce60ad14acd0806cc08dae6N.exe C:\Windows\SysWOW64\cmd.exe
PID 2128 wrote to memory of 3896 N/A C:\Users\Admin\AppData\Local\Temp\bapea.exe C:\Users\Admin\AppData\Local\Temp\ejxuk.exe
PID 2128 wrote to memory of 3896 N/A C:\Users\Admin\AppData\Local\Temp\bapea.exe C:\Users\Admin\AppData\Local\Temp\ejxuk.exe
PID 2128 wrote to memory of 3896 N/A C:\Users\Admin\AppData\Local\Temp\bapea.exe C:\Users\Admin\AppData\Local\Temp\ejxuk.exe

Processes

C:\Users\Admin\AppData\Local\Temp\14c96e7b058b68951b9288b46f135f05420f889f1ce60ad14acd0806cc08dae6N.exe

"C:\Users\Admin\AppData\Local\Temp\14c96e7b058b68951b9288b46f135f05420f889f1ce60ad14acd0806cc08dae6N.exe"

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

"C:\Users\Admin\AppData\Local\Temp\bapea.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\ejxuk.exe

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

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 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
KR 218.54.31.226:11300 tcp
KR 1.234.83.146:11170 tcp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 75.117.19.2.in-addr.arpa udp
KR 218.54.31.166:11300 tcp
US 8.8.8.8:53 69.209.201.84.in-addr.arpa udp
JP 133.242.129.155:11300 tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp

Files

memory/1356-0-0x0000000000060000-0x00000000000E1000-memory.dmp

memory/1356-1-0x0000000000CE0000-0x0000000000CE1000-memory.dmp

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

MD5 fd782c3e598b8f0b808927422c4448bd
SHA1 b80a1f8bcb4ae20ca9e3d848e4b63bc29d9cc216
SHA256 9f96de7d7e0f33cae6f8c215b3efb7502b4f9f565f55004d9467afcc426b4ec3
SHA512 0edc998d8abc0571d5bebcfedbd2d3691c6b2c8a31065c0bc3564d68cb6380587596d1cb66f2f5ec2a0ac4a6cf8043fdca074f930dd0cb3100ae5a65bf4ebac4

memory/2128-11-0x0000000000B10000-0x0000000000B91000-memory.dmp

memory/2128-14-0x0000000000560000-0x0000000000561000-memory.dmp

memory/1356-17-0x0000000000060000-0x00000000000E1000-memory.dmp

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

MD5 be80c895c17c9d687a80c2b8a36c5f13
SHA1 9602ddfc852dd677edbe457f53080613e00be567
SHA256 8008688230f0289c4816996f50838e9f2441ee78b74882403254ae3467e3b3d2
SHA512 1ab7e612a4700103c3b77dc77c371206f7ac93006c7133a8d0e6883e838b5c1ada1f20526e5062fc06857ce182c222e68f7232f4c9cfe66196619957341d075d

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

MD5 1fa2edd4f037aa572701b62fcb81a0af
SHA1 d96edc07543e4ded139697c4a131477e4843952b
SHA256 c11fd87798f461ec5320ea87de3d1212890d22de5418825a8330a3cb5009dae8
SHA512 ebbfb84f0539ead4f7d582d0f20532efdee717190884f57ed9fa17fa28eab7b54d11b4967e55b570f70a4508427ddf1b7fd7a742b3a5f9cfbdacffa8caecc450

memory/2128-20-0x0000000000B10000-0x0000000000B91000-memory.dmp

memory/2128-21-0x0000000000560000-0x0000000000561000-memory.dmp

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

MD5 27c434f313ceaf9f7d3de441395c9de5
SHA1 71b6dbc143d3b6c8bdaa9d26ae889ca4dfa290ce
SHA256 28147b797237d04e4eefbc98faca19ff553db22457ea1942324cc31afae66422
SHA512 7737335c9153793a42c55409f8a29506de11b81f5fadb5b5c1e98001c4ed295c9db3c426680328f15a2da513be5c7a10a7334848f009ac12fa91d1993945867c

memory/3896-38-0x0000000000260000-0x00000000002F9000-memory.dmp

memory/3896-39-0x0000000000390000-0x0000000000392000-memory.dmp

memory/3896-42-0x0000000000260000-0x00000000002F9000-memory.dmp

memory/2128-41-0x0000000000B10000-0x0000000000B91000-memory.dmp

memory/3896-47-0x0000000000390000-0x0000000000392000-memory.dmp

memory/3896-46-0x0000000000260000-0x00000000002F9000-memory.dmp

memory/3896-48-0x0000000000260000-0x00000000002F9000-memory.dmp