Malware Analysis Report

2024-11-16 13:27

Sample ID 240804-f1yy8asapa
Target e2e072cf0c977435a7c2588d97e02860N.exe
SHA256 68d609fa9ecbdc4aee32234c9acee6de36444fbe637f1f3aaa7d58ca5b13c1f6
Tags
urelas aspackv2 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

68d609fa9ecbdc4aee32234c9acee6de36444fbe637f1f3aaa7d58ca5b13c1f6

Threat Level: Known bad

The file e2e072cf0c977435a7c2588d97e02860N.exe was found to be: Known bad.

Malicious Activity Summary

urelas aspackv2 discovery trojan

Urelas family

Urelas

Deletes itself

Executes dropped EXE

ASPack v2.12-2.42

Loads dropped DLL

Checks computer location settings

Enumerates physical storage devices

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-04 05:21

Signatures

Urelas family

urelas

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-04 05:21

Reported

2024-08-04 05:23

Platform

win7-20240704-en

Max time kernel

119s

Max time network

91s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e2e072cf0c977435a7c2588d97e02860N.exe"

Signatures

Urelas

trojan urelas

ASPack v2.12-2.42

aspackv2
Description Indicator Process Target
N/A N/A N/A N/A

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\zevul.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\esenk.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\e2e072cf0c977435a7c2588d97e02860N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\zevul.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\esenk.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2872 wrote to memory of 316 N/A C:\Users\Admin\AppData\Local\Temp\e2e072cf0c977435a7c2588d97e02860N.exe C:\Users\Admin\AppData\Local\Temp\zevul.exe
PID 2872 wrote to memory of 316 N/A C:\Users\Admin\AppData\Local\Temp\e2e072cf0c977435a7c2588d97e02860N.exe C:\Users\Admin\AppData\Local\Temp\zevul.exe
PID 2872 wrote to memory of 316 N/A C:\Users\Admin\AppData\Local\Temp\e2e072cf0c977435a7c2588d97e02860N.exe C:\Users\Admin\AppData\Local\Temp\zevul.exe
PID 2872 wrote to memory of 316 N/A C:\Users\Admin\AppData\Local\Temp\e2e072cf0c977435a7c2588d97e02860N.exe C:\Users\Admin\AppData\Local\Temp\zevul.exe
PID 2872 wrote to memory of 2256 N/A C:\Users\Admin\AppData\Local\Temp\e2e072cf0c977435a7c2588d97e02860N.exe C:\Windows\SysWOW64\cmd.exe
PID 2872 wrote to memory of 2256 N/A C:\Users\Admin\AppData\Local\Temp\e2e072cf0c977435a7c2588d97e02860N.exe C:\Windows\SysWOW64\cmd.exe
PID 2872 wrote to memory of 2256 N/A C:\Users\Admin\AppData\Local\Temp\e2e072cf0c977435a7c2588d97e02860N.exe C:\Windows\SysWOW64\cmd.exe
PID 2872 wrote to memory of 2256 N/A C:\Users\Admin\AppData\Local\Temp\e2e072cf0c977435a7c2588d97e02860N.exe C:\Windows\SysWOW64\cmd.exe
PID 316 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\zevul.exe C:\Users\Admin\AppData\Local\Temp\esenk.exe
PID 316 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\zevul.exe C:\Users\Admin\AppData\Local\Temp\esenk.exe
PID 316 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\zevul.exe C:\Users\Admin\AppData\Local\Temp\esenk.exe
PID 316 wrote to memory of 2716 N/A C:\Users\Admin\AppData\Local\Temp\zevul.exe C:\Users\Admin\AppData\Local\Temp\esenk.exe

Processes

C:\Users\Admin\AppData\Local\Temp\e2e072cf0c977435a7c2588d97e02860N.exe

"C:\Users\Admin\AppData\Local\Temp\e2e072cf0c977435a7c2588d97e02860N.exe"

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

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

C:\Windows\SysWOW64\cmd.exe

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

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

"C:\Users\Admin\AppData\Local\Temp\esenk.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/2872-0-0x0000000000400000-0x0000000000465000-memory.dmp

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

MD5 816c785d2db0c40a3ef453420500821e
SHA1 f1153dd7871d328cd3f443468fad41c808e272f2
SHA256 e65abf501dfbe2fc461b8eb35df28f5334e0f9aaa400141273dd4641a645a153
SHA512 cd4976bb8624493bd68e5263d6de80cb6e1f1357b2cab3a7f7c884a0cda69bbf128a40cb00ac74d9d6ed17e2c699211af15b4e76562f436b8187158dc20b7a89

memory/2872-12-0x0000000002510000-0x0000000002575000-memory.dmp

memory/2872-11-0x0000000002510000-0x0000000002575000-memory.dmp

memory/316-20-0x0000000000400000-0x0000000000465000-memory.dmp

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

MD5 e80606b15b935d3d7ba3ba85ded4abea
SHA1 0338e0e92a5eaed88ec41129b0e8e5fa021df8a1
SHA256 47b8b3bab4bd0365a547c8689393f665689f0f0d3275f222ccaa02f59be98299
SHA512 8f806516587ed759f9f0c0e11a7806193b81ed16bd64d216a39262218b06073cd49ef714e484c7780141da29118ce2b4abed125a05e28237a1825bc3e86666a7

memory/2872-22-0x0000000000400000-0x0000000000465000-memory.dmp

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

MD5 d34020493891ad72d97663742b16d7db
SHA1 4e999085ac8840ce6f155c998e94a3c284079d76
SHA256 75c123db20a3ce9200183b776b4416da42d7b4021871365c46c67d781c509b5f
SHA512 f1d3215ee3e9d974092cbe025a70f80a6b4993c5ffc3832c8968aa5beb8bc186a8bb663922c5a8fea71b08cfc6ab7b357755c5ef09a313c4b32cc608399959e6

memory/2716-33-0x00000000010F0000-0x0000000001184000-memory.dmp

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

MD5 9543493deabe4d236232ff114bcff7da
SHA1 793ea463cc291f1a2520f81a3a5d0ef7374eb943
SHA256 f9b748fbff10af531fba09d839c40bc75900461979d14da8cf46edb93008b69c
SHA512 93e0622cd7c1e598dc12b41cf63f275d2a43a0f281ea84d1b0db360408fc537af6ace0fa48d35264fc5c65ffcd8cf70563feffcb82a393ab49bc13ff981c29d5

memory/316-31-0x0000000000400000-0x0000000000465000-memory.dmp

memory/316-30-0x0000000003D60000-0x0000000003DF4000-memory.dmp

memory/2716-35-0x00000000010F0000-0x0000000001184000-memory.dmp

memory/2716-36-0x00000000010F0000-0x0000000001184000-memory.dmp

memory/2716-34-0x00000000010F0000-0x0000000001184000-memory.dmp

memory/2716-38-0x00000000010F0000-0x0000000001184000-memory.dmp

memory/2716-39-0x00000000010F0000-0x0000000001184000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-04 05:21

Reported

2024-08-04 05:23

Platform

win10v2004-20240802-en

Max time kernel

119s

Max time network

94s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e2e072cf0c977435a7c2588d97e02860N.exe"

Signatures

Urelas

trojan urelas

ASPack v2.12-2.42

aspackv2
Description Indicator Process Target
N/A N/A N/A N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\e2e072cf0c977435a7c2588d97e02860N.exe N/A
Key value queried \REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\wiavg.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\wiavg.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\goybo.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\e2e072cf0c977435a7c2588d97e02860N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\wiavg.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\goybo.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Processes

C:\Users\Admin\AppData\Local\Temp\e2e072cf0c977435a7c2588d97e02860N.exe

"C:\Users\Admin\AppData\Local\Temp\e2e072cf0c977435a7c2588d97e02860N.exe"

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

"C:\Users\Admin\AppData\Local\Temp\wiavg.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\goybo.exe

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

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 74.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
KR 218.54.31.226:11110 tcp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
KR 1.234.83.146:11170 tcp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.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/3064-0-0x0000000000400000-0x0000000000465000-memory.dmp

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

MD5 0f2e50157879803fb9e9a652947b572d
SHA1 17ba56a95886c2b95eab564737a8d5a55e5c34da
SHA256 f97025abbb29fe280cbbf3b60a3a1684cec8d2990d77bca2cde1b74ab4b6c3b4
SHA512 38fa9a64c96b143d7ee501722617085c3890ada87af575a535b0b7728f45aaec8b965940984ed1ae7aa217e05d657fff5feff69f4f3604b054b59d3756983294

memory/4148-12-0x0000000000400000-0x0000000000465000-memory.dmp

memory/3064-14-0x0000000000400000-0x0000000000465000-memory.dmp

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

MD5 e80606b15b935d3d7ba3ba85ded4abea
SHA1 0338e0e92a5eaed88ec41129b0e8e5fa021df8a1
SHA256 47b8b3bab4bd0365a547c8689393f665689f0f0d3275f222ccaa02f59be98299
SHA512 8f806516587ed759f9f0c0e11a7806193b81ed16bd64d216a39262218b06073cd49ef714e484c7780141da29118ce2b4abed125a05e28237a1825bc3e86666a7

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

MD5 52f915d3e9f5a0cc54e16094e3927223
SHA1 e925b4c29c6f2535b265f61639519383dc3b9473
SHA256 975cac720a606f8e4ce7032d27a5c0a3fd5a35e92117d8dfc05259331a2a2702
SHA512 2c69538672cf9c85cc40c3fcd7db948f7f3ffca8eb47ce21aef6e75d1dff6325226cdcaa4a3ea1571c25ed26cac560d1c4eea12a34dcd23e01ae6378a3e0815d

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

MD5 8800b65cf905ad8b19c69d759ca1fd70
SHA1 3b16d490c909ed8762dc3e6ee7c9421489622687
SHA256 0a2d23362c9f58a1ca09d590c63cf4f853a7ac3a4c2ecec7886f27db695dcb56
SHA512 2b5d983117265fead9cdf2b4be3b01c2ce86f37e464fd6956e6697ca85584cf9fb16ba96f068ed3850e580447c734b4a51172d0ba751e7845880fc1fd137b2ac

memory/1596-25-0x00000000002B0000-0x0000000000344000-memory.dmp

memory/1596-27-0x00000000002B0000-0x0000000000344000-memory.dmp

memory/4148-29-0x0000000000400000-0x0000000000465000-memory.dmp

memory/1596-28-0x00000000002B0000-0x0000000000344000-memory.dmp

memory/1596-26-0x00000000002B0000-0x0000000000344000-memory.dmp

memory/1596-31-0x00000000002B0000-0x0000000000344000-memory.dmp

memory/1596-32-0x00000000002B0000-0x0000000000344000-memory.dmp