Malware Analysis Report

2024-11-16 13:25

Sample ID 241011-ed2adstemb
Target e5db60147e4fbbf793adf3a782b2e3913252bf36610b66846381c48857b47990N
SHA256 e5db60147e4fbbf793adf3a782b2e3913252bf36610b66846381c48857b47990
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

e5db60147e4fbbf793adf3a782b2e3913252bf36610b66846381c48857b47990

Threat Level: Known bad

The file e5db60147e4fbbf793adf3a782b2e3913252bf36610b66846381c48857b47990N was found to be: Known bad.

Malicious Activity Summary

urelas discovery trojan

Urelas

Deletes itself

Loads dropped DLL

Checks computer location settings

Executes dropped EXE

Unsigned PE

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-10-11 03:50

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-10-11 03:50

Reported

2024-10-11 03:52

Platform

win7-20240708-en

Max time kernel

119s

Max time network

77s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e5db60147e4fbbf793adf3a782b2e3913252bf36610b66846381c48857b47990N.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\daxok.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\axcei.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\e5db60147e4fbbf793adf3a782b2e3913252bf36610b66846381c48857b47990N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\daxok.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\axcei.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2528 wrote to memory of 2260 N/A C:\Users\Admin\AppData\Local\Temp\e5db60147e4fbbf793adf3a782b2e3913252bf36610b66846381c48857b47990N.exe C:\Users\Admin\AppData\Local\Temp\daxok.exe
PID 2528 wrote to memory of 2260 N/A C:\Users\Admin\AppData\Local\Temp\e5db60147e4fbbf793adf3a782b2e3913252bf36610b66846381c48857b47990N.exe C:\Users\Admin\AppData\Local\Temp\daxok.exe
PID 2528 wrote to memory of 2260 N/A C:\Users\Admin\AppData\Local\Temp\e5db60147e4fbbf793adf3a782b2e3913252bf36610b66846381c48857b47990N.exe C:\Users\Admin\AppData\Local\Temp\daxok.exe
PID 2528 wrote to memory of 2260 N/A C:\Users\Admin\AppData\Local\Temp\e5db60147e4fbbf793adf3a782b2e3913252bf36610b66846381c48857b47990N.exe C:\Users\Admin\AppData\Local\Temp\daxok.exe
PID 2528 wrote to memory of 2760 N/A C:\Users\Admin\AppData\Local\Temp\e5db60147e4fbbf793adf3a782b2e3913252bf36610b66846381c48857b47990N.exe C:\Windows\SysWOW64\cmd.exe
PID 2528 wrote to memory of 2760 N/A C:\Users\Admin\AppData\Local\Temp\e5db60147e4fbbf793adf3a782b2e3913252bf36610b66846381c48857b47990N.exe C:\Windows\SysWOW64\cmd.exe
PID 2528 wrote to memory of 2760 N/A C:\Users\Admin\AppData\Local\Temp\e5db60147e4fbbf793adf3a782b2e3913252bf36610b66846381c48857b47990N.exe C:\Windows\SysWOW64\cmd.exe
PID 2528 wrote to memory of 2760 N/A C:\Users\Admin\AppData\Local\Temp\e5db60147e4fbbf793adf3a782b2e3913252bf36610b66846381c48857b47990N.exe C:\Windows\SysWOW64\cmd.exe
PID 2260 wrote to memory of 1980 N/A C:\Users\Admin\AppData\Local\Temp\daxok.exe C:\Users\Admin\AppData\Local\Temp\axcei.exe
PID 2260 wrote to memory of 1980 N/A C:\Users\Admin\AppData\Local\Temp\daxok.exe C:\Users\Admin\AppData\Local\Temp\axcei.exe
PID 2260 wrote to memory of 1980 N/A C:\Users\Admin\AppData\Local\Temp\daxok.exe C:\Users\Admin\AppData\Local\Temp\axcei.exe
PID 2260 wrote to memory of 1980 N/A C:\Users\Admin\AppData\Local\Temp\daxok.exe C:\Users\Admin\AppData\Local\Temp\axcei.exe

Processes

C:\Users\Admin\AppData\Local\Temp\e5db60147e4fbbf793adf3a782b2e3913252bf36610b66846381c48857b47990N.exe

"C:\Users\Admin\AppData\Local\Temp\e5db60147e4fbbf793adf3a782b2e3913252bf36610b66846381c48857b47990N.exe"

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

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

C:\Windows\SysWOW64\cmd.exe

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

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

"C:\Users\Admin\AppData\Local\Temp\axcei.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/2528-1-0x0000000000020000-0x0000000000021000-memory.dmp

memory/2528-0-0x00000000000E0000-0x0000000000161000-memory.dmp

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

MD5 41229b28630ba9319ec11010a52fd4b3
SHA1 c38b4a75ed53421a114d66d8c4dc71bb3262fd29
SHA256 474065f3418507d25b5569e6b6565d6c4a0d2a38586687e73f3f1773270f77e7
SHA512 314b17e682ca8610b51d129a2fcffc4b64a49e29d82c814ac706e0770192b725c229c76d49353caeab45dfa9fc85af58b2a976d1ad769f0f9da12b2d22c43aed

memory/2528-6-0x0000000001DF0000-0x0000000001E71000-memory.dmp

memory/2260-18-0x0000000000020000-0x0000000000021000-memory.dmp

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

MD5 2e471ff1f3a95dcafab8e8ceea19b43f
SHA1 361bacc15886ec943fb6435e7309c2aa3050012b
SHA256 21033e90cb758b226134781c4bc0ed2d72e9453d40e6759ae0f45b49068fab2f
SHA512 f106c6cce3b545e637b1b1526241f2c46f6071ab99bafc24ba17ae067d60bf471ecab5057bca73312bb7dcd725d5acf34b6e0cd4030b9ed31b599007e59734af

memory/2260-13-0x0000000000110000-0x0000000000191000-memory.dmp

memory/2528-21-0x00000000000E0000-0x0000000000161000-memory.dmp

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

MD5 eba7a6f8c9aa4c3ea1bb1daba99e5175
SHA1 3d755a1d8572096c85335f37690078b630bf6d25
SHA256 29b7d79bcf220bcd7426421bb81138846284ee5fa18902a5b5722954da31bc79
SHA512 9b7b9a5dcdc83c9d6fe7a6878c786412c6b98823f2cf75b5cd29e9075e745c20bebe1c9a3f2602e6f95cfbd87131751528d3f0c0bf6085b4dc9d9c4dfda4311b

memory/2260-24-0x0000000000110000-0x0000000000191000-memory.dmp

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

MD5 ecb276aac4f8c2930ba557b38d60147f
SHA1 64f3cad8035813eb7d94b67d92a5ebd22c8602a8
SHA256 9bc162b3f3a42e8c66d4e95252ba058704667d06e506654f3222a97494897e5d
SHA512 3f8a77d6eb5d2b7f0c7afe6da9bc68b9c32d0f3fdf5ac7ef27a706652a6847578849294f6f7d43c727483993f465f6b534b9f53dd50282fddfa430580a0f93e8

memory/2260-40-0x0000000000110000-0x0000000000191000-memory.dmp

memory/1980-41-0x0000000000090000-0x0000000000129000-memory.dmp

memory/1980-43-0x0000000000090000-0x0000000000129000-memory.dmp

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

MD5 c646a4e4c198de0cc5dbfba94d272a3d
SHA1 8569fda3e6222d97ed64484cce0ac8f8ea59a58b
SHA256 6f6257c3c2e795b134ece684e7c1087c92cb362ea4aef61f89e4f7496391152b
SHA512 fdcdfde09b2b58255fda9460e7090f5a1fcbea382b6750f61428b6a45521e3f57e95c20308d5d38b9e8465e6bfa720b1978a9ab9d3f3faa0b34014b9b98bed4c

memory/1980-47-0x0000000000090000-0x0000000000129000-memory.dmp

memory/1980-48-0x0000000000090000-0x0000000000129000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-10-11 03:50

Reported

2024-10-11 03:52

Platform

win10v2004-20241007-en

Max time kernel

119s

Max time network

95s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e5db60147e4fbbf793adf3a782b2e3913252bf36610b66846381c48857b47990N.exe"

Signatures

Urelas

trojan urelas

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\e5db60147e4fbbf793adf3a782b2e3913252bf36610b66846381c48857b47990N.exe N/A
Key value queried \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\munof.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\munof.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\gyzoi.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\e5db60147e4fbbf793adf3a782b2e3913252bf36610b66846381c48857b47990N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\munof.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\gyzoi.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 452 wrote to memory of 1572 N/A C:\Users\Admin\AppData\Local\Temp\e5db60147e4fbbf793adf3a782b2e3913252bf36610b66846381c48857b47990N.exe C:\Users\Admin\AppData\Local\Temp\munof.exe
PID 452 wrote to memory of 1572 N/A C:\Users\Admin\AppData\Local\Temp\e5db60147e4fbbf793adf3a782b2e3913252bf36610b66846381c48857b47990N.exe C:\Users\Admin\AppData\Local\Temp\munof.exe
PID 452 wrote to memory of 1572 N/A C:\Users\Admin\AppData\Local\Temp\e5db60147e4fbbf793adf3a782b2e3913252bf36610b66846381c48857b47990N.exe C:\Users\Admin\AppData\Local\Temp\munof.exe
PID 452 wrote to memory of 4424 N/A C:\Users\Admin\AppData\Local\Temp\e5db60147e4fbbf793adf3a782b2e3913252bf36610b66846381c48857b47990N.exe C:\Windows\SysWOW64\cmd.exe
PID 452 wrote to memory of 4424 N/A C:\Users\Admin\AppData\Local\Temp\e5db60147e4fbbf793adf3a782b2e3913252bf36610b66846381c48857b47990N.exe C:\Windows\SysWOW64\cmd.exe
PID 452 wrote to memory of 4424 N/A C:\Users\Admin\AppData\Local\Temp\e5db60147e4fbbf793adf3a782b2e3913252bf36610b66846381c48857b47990N.exe C:\Windows\SysWOW64\cmd.exe
PID 1572 wrote to memory of 3736 N/A C:\Users\Admin\AppData\Local\Temp\munof.exe C:\Users\Admin\AppData\Local\Temp\gyzoi.exe
PID 1572 wrote to memory of 3736 N/A C:\Users\Admin\AppData\Local\Temp\munof.exe C:\Users\Admin\AppData\Local\Temp\gyzoi.exe
PID 1572 wrote to memory of 3736 N/A C:\Users\Admin\AppData\Local\Temp\munof.exe C:\Users\Admin\AppData\Local\Temp\gyzoi.exe

Processes

C:\Users\Admin\AppData\Local\Temp\e5db60147e4fbbf793adf3a782b2e3913252bf36610b66846381c48857b47990N.exe

"C:\Users\Admin\AppData\Local\Temp\e5db60147e4fbbf793adf3a782b2e3913252bf36610b66846381c48857b47990N.exe"

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

"C:\Users\Admin\AppData\Local\Temp\munof.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\gyzoi.exe

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
KR 218.54.31.226:11300 tcp
KR 1.234.83.146:11170 tcp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.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
JP 133.242.129.155:11300 tcp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp

Files

memory/452-0-0x0000000000A80000-0x0000000000B01000-memory.dmp

memory/452-1-0x00000000007C0000-0x00000000007C1000-memory.dmp

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

MD5 c5a55073d297966411d65b4fd23f0f77
SHA1 49d3c4d1dafb3353888cf05eedd8f840505464d4
SHA256 4a677dc0683177c3dc775aa39c7b74efd8216f68b9b7f3cad5898b3be3fdb110
SHA512 5969674214634a1b333568eced9ffdfe2b3cfb7ca68deaec6445ccd9f5146df518794cf28809623367e6dcdb5b617d4caef949466dbb4516fc2d7f56f7cfa264

memory/1572-14-0x00000000005E0000-0x00000000005E1000-memory.dmp

memory/452-17-0x0000000000A80000-0x0000000000B01000-memory.dmp

memory/1572-11-0x0000000000300000-0x0000000000381000-memory.dmp

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

MD5 2e471ff1f3a95dcafab8e8ceea19b43f
SHA1 361bacc15886ec943fb6435e7309c2aa3050012b
SHA256 21033e90cb758b226134781c4bc0ed2d72e9453d40e6759ae0f45b49068fab2f
SHA512 f106c6cce3b545e637b1b1526241f2c46f6071ab99bafc24ba17ae067d60bf471ecab5057bca73312bb7dcd725d5acf34b6e0cd4030b9ed31b599007e59734af

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

MD5 2635c8a009662d2a9035f4678688f990
SHA1 0c28df6543f05b7e53cc19a31a05aeecb2eac51d
SHA256 8ce0e07c7a2483f0d50ee8e5613a5ca679cf6254a1caf6962aeac85ac8b5aefb
SHA512 40420dabc8066549cfb195e8deb0f2e195b3932f80971c35819074cd65ff8018e59b1d01be70728edaec21ddbf0584ca93e1c307773c56f795bc2f50eaf23086

memory/1572-21-0x00000000005E0000-0x00000000005E1000-memory.dmp

memory/1572-20-0x0000000000300000-0x0000000000381000-memory.dmp

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

MD5 198c8a3ee8a311a334113eaa3cd8afc3
SHA1 b6cd9d8274a3b6722498c03e7038372e01c56019
SHA256 1e2825ad35937ec67de931f237c8f19f11a02eca116535207a90b30a178e16af
SHA512 60ed062d2c6789fe732b5ab77f1d6dbb3f5db6ac10ebe6869e714c3b76be53bd4c19ed4dc725f0e3163dcd5d89f90f2df3060e0a4c7826783ec9ef7f6e9e0dff

memory/3736-37-0x0000000000760000-0x00000000007F9000-memory.dmp

memory/1572-40-0x0000000000300000-0x0000000000381000-memory.dmp

memory/3736-41-0x0000000000710000-0x0000000000712000-memory.dmp

memory/3736-42-0x0000000000760000-0x00000000007F9000-memory.dmp

memory/3736-47-0x0000000000710000-0x0000000000712000-memory.dmp

memory/3736-46-0x0000000000760000-0x00000000007F9000-memory.dmp

memory/3736-48-0x0000000000760000-0x00000000007F9000-memory.dmp