Malware Analysis Report

2024-11-16 13:26

Sample ID 240802-hxcypasdkn
Target 6ef5c7686f846713cf3bf4f5341b7290N.exe
SHA256 95072f918a1dec0c6ba1773aedaacd96edbdfbf8424521fc293a411c4eafda13
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

95072f918a1dec0c6ba1773aedaacd96edbdfbf8424521fc293a411c4eafda13

Threat Level: Known bad

The file 6ef5c7686f846713cf3bf4f5341b7290N.exe was found to be: Known bad.

Malicious Activity Summary

upx urelas discovery trojan

Urelas family

Urelas

UPX packed file

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

Deletes itself

Enumerates physical storage devices

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-02 07:06

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

2024-08-02 07:06

Reported

2024-08-02 07:08

Platform

win7-20240705-en

Max time kernel

118s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6ef5c7686f846713cf3bf4f5341b7290N.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

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\6ef5c7686f846713cf3bf4f5341b7290N.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

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\6ef5c7686f846713cf3bf4f5341b7290N.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

Processes

C:\Users\Admin\AppData\Local\Temp\6ef5c7686f846713cf3bf4f5341b7290N.exe

"C:\Users\Admin\AppData\Local\Temp\6ef5c7686f846713cf3bf4f5341b7290N.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 112.175.88.209:11120 tcp
KR 112.175.88.208:11150 tcp
KR 112.175.88.209:11170 tcp
KR 112.175.88.207:11150 tcp

Files

memory/2752-0-0x0000000000400000-0x0000000000431000-memory.dmp

memory/2752-9-0x00000000025D0000-0x0000000002601000-memory.dmp

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

MD5 52a8d37b2f16c12286da42527120cfac
SHA1 7eae68723bbaa15629517ef30af4756552b4266e
SHA256 a497b25f6270e7c3ed67b03733f0a6cbde1b1bdde933830bce90d693d28108b5
SHA512 1574dc20d585bf76899258865da7da16278bbddb402b6031035b294fa2cf49e23fa2992bd9d706165fa65dda5271d2af588ef7ff664b7c03856cc0be522fcd02

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

MD5 60cf922a163899216c71cb6671525210
SHA1 65159c7c66fd7bdc96811961599de3848c802f23
SHA256 12fc526921cefce00be572c045fa0a1377663f2b48b3fa262c6c3ef1d274f2c2
SHA512 999a2c64def9a8e411d69b8b49063f35ed40f7f005bd27e80e12aa057b5e1be1e61c142634bd9849663963e128cc1a6ecd7a0a69904974bc42c63fedef205bca

memory/2752-18-0x0000000000400000-0x0000000000431000-memory.dmp

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

MD5 a01dba4c45102fc15292fd5591166536
SHA1 d96191c30e0f09439d8547f4ededbf6726ccd54b
SHA256 cc2f9d3db04690b746c18d40c70f8dbc9ca18520b68619d9ccaeac500af98904
SHA512 277a86f44c2648668205cd6c3c9f83feef147a5ad10839a130713eee9c931c26088d4dd95798b1d0e69f3439239abdee79d37656ad3963147a878a9433d60d32

memory/2900-21-0x0000000000400000-0x0000000000431000-memory.dmp

memory/2900-23-0x0000000000400000-0x0000000000431000-memory.dmp

memory/2900-30-0x0000000000400000-0x0000000000431000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-02 07:06

Reported

2024-08-02 07:08

Platform

win10v2004-20240730-en

Max time kernel

93s

Max time network

94s

Command Line

"C:\Users\Admin\AppData\Local\Temp\6ef5c7686f846713cf3bf4f5341b7290N.exe"

Signatures

Urelas

trojan urelas

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3881032017-2947584075-2120384563-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\6ef5c7686f846713cf3bf4f5341b7290N.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\6ef5c7686f846713cf3bf4f5341b7290N.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

Processes

C:\Users\Admin\AppData\Local\Temp\6ef5c7686f846713cf3bf4f5341b7290N.exe

"C:\Users\Admin\AppData\Local\Temp\6ef5c7686f846713cf3bf4f5341b7290N.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 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
KR 112.175.88.209:11120 tcp
KR 112.175.88.208:11150 tcp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 147.142.123.92.in-addr.arpa udp
KR 112.175.88.209:11170 tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
KR 112.175.88.207:11150 tcp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp

Files

memory/800-0-0x0000000000400000-0x0000000000431000-memory.dmp

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

MD5 e88b8cf957350d4b09314044792a2d93
SHA1 c0b29ffafc4e027ac899e6051648a70a8ba5162b
SHA256 3f939042a4036c9d1e74249a7d3fe87ff262156efe00dd7709feedfc61732627
SHA512 6e521403721ac898f889e40cd02ed6e4d4d85f0b25a5436574f9d4c42adf5511ee8631b0f11f1c1bf31ef19f45b9263547e9277c2de0db8daa7be13d00185490

memory/4448-14-0x0000000000400000-0x0000000000431000-memory.dmp

memory/800-18-0x0000000000400000-0x0000000000431000-memory.dmp

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

MD5 52a8d37b2f16c12286da42527120cfac
SHA1 7eae68723bbaa15629517ef30af4756552b4266e
SHA256 a497b25f6270e7c3ed67b03733f0a6cbde1b1bdde933830bce90d693d28108b5
SHA512 1574dc20d585bf76899258865da7da16278bbddb402b6031035b294fa2cf49e23fa2992bd9d706165fa65dda5271d2af588ef7ff664b7c03856cc0be522fcd02

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

MD5 a01dba4c45102fc15292fd5591166536
SHA1 d96191c30e0f09439d8547f4ededbf6726ccd54b
SHA256 cc2f9d3db04690b746c18d40c70f8dbc9ca18520b68619d9ccaeac500af98904
SHA512 277a86f44c2648668205cd6c3c9f83feef147a5ad10839a130713eee9c931c26088d4dd95798b1d0e69f3439239abdee79d37656ad3963147a878a9433d60d32

memory/4448-21-0x0000000000400000-0x0000000000431000-memory.dmp

memory/4448-23-0x0000000000400000-0x0000000000431000-memory.dmp

memory/4448-30-0x0000000000400000-0x0000000000431000-memory.dmp