Malware Analysis Report

2024-11-16 13:28

Sample ID 240805-wzvs6stgqm
Target 05e11cd58c166e62e0265acc90e832b7c2e4a92ae8f8a88eb6598ed496167828
SHA256 05e11cd58c166e62e0265acc90e832b7c2e4a92ae8f8a88eb6598ed496167828
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

05e11cd58c166e62e0265acc90e832b7c2e4a92ae8f8a88eb6598ed496167828

Threat Level: Known bad

The file 05e11cd58c166e62e0265acc90e832b7c2e4a92ae8f8a88eb6598ed496167828 was found to be: Known bad.

Malicious Activity Summary

upx urelas discovery trojan

Urelas

Urelas family

Deletes itself

Loads dropped DLL

UPX packed file

Executes dropped EXE

Checks computer location settings

Unsigned PE

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-05 18:22

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

2024-08-05 18:22

Reported

2024-08-05 18:24

Platform

win7-20240708-en

Max time kernel

117s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\05e11cd58c166e62e0265acc90e832b7c2e4a92ae8f8a88eb6598ed496167828.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

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\05e11cd58c166e62e0265acc90e832b7c2e4a92ae8f8a88eb6598ed496167828.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\05e11cd58c166e62e0265acc90e832b7c2e4a92ae8f8a88eb6598ed496167828.exe

"C:\Users\Admin\AppData\Local\Temp\05e11cd58c166e62e0265acc90e832b7c2e4a92ae8f8a88eb6598ed496167828.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/2076-0-0x0000000000400000-0x0000000000431000-memory.dmp

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

MD5 51cce317ffe98b8d8eb6d11d5a868c90
SHA1 f9b1f27d7e806c2653bb46184f75f3ee473b5959
SHA256 2bcce83206a5551b518200ade01e30a13fd3a46e822d678413b41396da21c833
SHA512 6a03399a903dfac5ecd9477b683c30514554090c4df2d73f4deb71faeaf97d5b438d19e861ee63650e3a6853b23c0a99204e5b4d8cecdfb69101b098bd2e74ef

memory/2076-10-0x0000000002450000-0x0000000002481000-memory.dmp

memory/2280-17-0x0000000000400000-0x0000000000431000-memory.dmp

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

MD5 9deb33f5ae8e7d3c166e6e1ef56ed96b
SHA1 2d2d4dc196e2ba9f228e23c6045d4fe7b72f74bb
SHA256 762636203c0071dd22b95be42b58b026c86e4d396c34868295e0321f101b422f
SHA512 a4a28076cc3f61709d26735b189fc953897e7f9bbd1b98c334f1e6c0c54dc563a1d8bfb0e8a87ddf8dcfa1346e1859e9dbd3163f5d08822c09a3e910326a88c4

memory/2076-19-0x0000000000400000-0x0000000000431000-memory.dmp

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

MD5 a01dba4c45102fc15292fd5591166536
SHA1 d96191c30e0f09439d8547f4ededbf6726ccd54b
SHA256 cc2f9d3db04690b746c18d40c70f8dbc9ca18520b68619d9ccaeac500af98904
SHA512 277a86f44c2648668205cd6c3c9f83feef147a5ad10839a130713eee9c931c26088d4dd95798b1d0e69f3439239abdee79d37656ad3963147a878a9433d60d32

memory/2280-22-0x0000000000400000-0x0000000000431000-memory.dmp

memory/2280-24-0x0000000000400000-0x0000000000431000-memory.dmp

memory/2280-30-0x0000000000400000-0x0000000000431000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-05 18:22

Reported

2024-08-05 18:24

Platform

win10v2004-20240802-en

Max time kernel

94s

Max time network

101s

Command Line

"C:\Users\Admin\AppData\Local\Temp\05e11cd58c166e62e0265acc90e832b7c2e4a92ae8f8a88eb6598ed496167828.exe"

Signatures

Urelas

trojan urelas

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\05e11cd58c166e62e0265acc90e832b7c2e4a92ae8f8a88eb6598ed496167828.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\05e11cd58c166e62e0265acc90e832b7c2e4a92ae8f8a88eb6598ed496167828.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\05e11cd58c166e62e0265acc90e832b7c2e4a92ae8f8a88eb6598ed496167828.exe

"C:\Users\Admin\AppData\Local\Temp\05e11cd58c166e62e0265acc90e832b7c2e4a92ae8f8a88eb6598ed496167828.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 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 240.143.123.92.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.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 56.126.166.20.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
KR 112.175.88.207:11150 tcp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 36.56.20.217.in-addr.arpa udp

Files

memory/3708-0-0x0000000000400000-0x0000000000431000-memory.dmp

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

MD5 288eede904f60650a22a7d799522dc7f
SHA1 30ebc396d27399e07f61526bef6c3d694f74b2b0
SHA256 a701870d9f9b2d0b5904e86b31bd7cf7d43cfb1309934e53712784297673cc4b
SHA512 b2d481da71e9f6d669ebfbcad2518a4e2e90555f48ee362cec25c7ad8880fcb1e2188e03bf294dc2bfcc42fde8127a155c04c08cb9afb4c16eae336a32a72cd0

memory/3808-15-0x0000000000400000-0x0000000000431000-memory.dmp

memory/3708-18-0x0000000000400000-0x0000000000431000-memory.dmp

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

MD5 9deb33f5ae8e7d3c166e6e1ef56ed96b
SHA1 2d2d4dc196e2ba9f228e23c6045d4fe7b72f74bb
SHA256 762636203c0071dd22b95be42b58b026c86e4d396c34868295e0321f101b422f
SHA512 a4a28076cc3f61709d26735b189fc953897e7f9bbd1b98c334f1e6c0c54dc563a1d8bfb0e8a87ddf8dcfa1346e1859e9dbd3163f5d08822c09a3e910326a88c4

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

MD5 a01dba4c45102fc15292fd5591166536
SHA1 d96191c30e0f09439d8547f4ededbf6726ccd54b
SHA256 cc2f9d3db04690b746c18d40c70f8dbc9ca18520b68619d9ccaeac500af98904
SHA512 277a86f44c2648668205cd6c3c9f83feef147a5ad10839a130713eee9c931c26088d4dd95798b1d0e69f3439239abdee79d37656ad3963147a878a9433d60d32

memory/3808-21-0x0000000000400000-0x0000000000431000-memory.dmp

memory/3808-23-0x0000000000400000-0x0000000000431000-memory.dmp

memory/3808-30-0x0000000000400000-0x0000000000431000-memory.dmp