Malware Analysis Report

2024-11-16 13:28

Sample ID 240812-a3x7taxbqm
Target a5808b247fcc07b58eefabc6e170fccfcbb1c12204f70217a31df61c19b87803
SHA256 a5808b247fcc07b58eefabc6e170fccfcbb1c12204f70217a31df61c19b87803
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

a5808b247fcc07b58eefabc6e170fccfcbb1c12204f70217a31df61c19b87803

Threat Level: Known bad

The file a5808b247fcc07b58eefabc6e170fccfcbb1c12204f70217a31df61c19b87803 was found to be: Known bad.

Malicious Activity Summary

urelas discovery trojan

Urelas family

Urelas

Checks computer location settings

Deletes itself

Executes dropped EXE

Loads dropped DLL

Enumerates physical storage devices

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-12 00:44

Signatures

Urelas family

urelas

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-12 00:44

Reported

2024-08-12 00:47

Platform

win7-20240708-en

Max time kernel

117s

Max time network

117s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a5808b247fcc07b58eefabc6e170fccfcbb1c12204f70217a31df61c19b87803.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

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\a5808b247fcc07b58eefabc6e170fccfcbb1c12204f70217a31df61c19b87803.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\a5808b247fcc07b58eefabc6e170fccfcbb1c12204f70217a31df61c19b87803.exe

"C:\Users\Admin\AppData\Local\Temp\a5808b247fcc07b58eefabc6e170fccfcbb1c12204f70217a31df61c19b87803.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/2680-0-0x00000000001B0000-0x00000000001E7000-memory.dmp

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

MD5 a6a946db6c6927e33dfbc763e0c04f17
SHA1 714cd42b48dc045711138d322e0a33267bf34280
SHA256 8967da476284e0fdcb93a7fb4d386ec97f522ecb229fc09282794b3541c6f33f
SHA512 ae411bf5531a56fbf6876db94ec69ca78a3084e11c86ecc80978f1fa2ebb4a54444fc0c122ea49eaeb9ec99dda4f0499b38aa2432775d47f793e162bb4cb1853

memory/2680-8-0x0000000002040000-0x0000000002077000-memory.dmp

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

MD5 553b19afe0eb69436bb170408e3cad0c
SHA1 c8114961533b8bbabbad5c3686a4de67ef122a92
SHA256 04422ebf2a09f1c4eae50ee44238d533aa7480cdf6d3ba4362e9483712ffaf11
SHA512 3b623616353e3269a7916f50adcb04a52f46a574e401356b9fc33ebd92f0cec0a604577e09ad6f315d933d7e8a5b2585ec1d0290190828b905a3a5c687462d6e

memory/2320-16-0x00000000001F0000-0x0000000000227000-memory.dmp

memory/2680-18-0x00000000001B0000-0x00000000001E7000-memory.dmp

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

MD5 a39f3ff1599241818ef65c0fd09039ed
SHA1 8d40b394a337a9da3330603fcd523842bccdf504
SHA256 1a642c68cd9771cc0f73ba498cf973bb560f34ac6f55ab17d26847a7714e34dc
SHA512 32e59ac200465d2c6c53c76344bfc1382ad12359a4e691c0473a86ba00f264fe7a93925bfac6fb0e4e18ff1a913b2dbba87f6d707e2ce0eafdb861f42028286e

memory/2320-21-0x00000000001F0000-0x0000000000227000-memory.dmp

memory/2320-22-0x00000000001F0000-0x0000000000227000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-12 00:44

Reported

2024-08-12 00:47

Platform

win10v2004-20240802-en

Max time kernel

144s

Max time network

128s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a5808b247fcc07b58eefabc6e170fccfcbb1c12204f70217a31df61c19b87803.exe"

Signatures

Urelas

trojan urelas

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\a5808b247fcc07b58eefabc6e170fccfcbb1c12204f70217a31df61c19b87803.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\huter.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:\Windows\SysWOW64\cmd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\a5808b247fcc07b58eefabc6e170fccfcbb1c12204f70217a31df61c19b87803.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\huter.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a5808b247fcc07b58eefabc6e170fccfcbb1c12204f70217a31df61c19b87803.exe

"C:\Users\Admin\AppData\Local\Temp\a5808b247fcc07b58eefabc6e170fccfcbb1c12204f70217a31df61c19b87803.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" "

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4048,i,10597648459838880772,16562651767759956329,262144 --variations-seed-version --mojo-platform-channel-handle=4468 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 240.143.123.92.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
KR 112.175.88.209:11120 tcp
KR 112.175.88.208:11150 tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.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
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 25.140.123.92.in-addr.arpa udp
KR 112.175.88.207:11150 tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp

Files

memory/3372-0-0x00000000000E0000-0x0000000000117000-memory.dmp

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

MD5 e2ae5544028c44c121a06dd869c72f4f
SHA1 33792cc6b71c2a0c88bae5da901f54b4cc228c4e
SHA256 c6fa69312ce5f7d9df5f6e279ca525116f717630ed9e5c99670dcb6db0170582
SHA512 12e78eb0e4bd6c360e943e419fe19775668d898ecc6f31f217a60bdea3bad2b0d317375878018570f35eeccd8960a1f4202bb6e7dbc0be1623e0970587bc34ff

memory/3624-10-0x0000000000960000-0x0000000000997000-memory.dmp

memory/3372-14-0x00000000000E0000-0x0000000000117000-memory.dmp

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

MD5 553b19afe0eb69436bb170408e3cad0c
SHA1 c8114961533b8bbabbad5c3686a4de67ef122a92
SHA256 04422ebf2a09f1c4eae50ee44238d533aa7480cdf6d3ba4362e9483712ffaf11
SHA512 3b623616353e3269a7916f50adcb04a52f46a574e401356b9fc33ebd92f0cec0a604577e09ad6f315d933d7e8a5b2585ec1d0290190828b905a3a5c687462d6e

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

MD5 a39f3ff1599241818ef65c0fd09039ed
SHA1 8d40b394a337a9da3330603fcd523842bccdf504
SHA256 1a642c68cd9771cc0f73ba498cf973bb560f34ac6f55ab17d26847a7714e34dc
SHA512 32e59ac200465d2c6c53c76344bfc1382ad12359a4e691c0473a86ba00f264fe7a93925bfac6fb0e4e18ff1a913b2dbba87f6d707e2ce0eafdb861f42028286e

memory/3624-17-0x0000000000960000-0x0000000000997000-memory.dmp

memory/3624-18-0x0000000000960000-0x0000000000997000-memory.dmp