Malware Analysis Report

2024-11-16 13:28

Sample ID 240812-hlfkfazbqr
Target 8dba1b3a3a7280fb8070dfbf25cabdee_JaffaCakes118
SHA256 5e355a81ce7a455f77d7c5d65cad3b381def3dee66d2ce8d6de90cf436819ff1
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

5e355a81ce7a455f77d7c5d65cad3b381def3dee66d2ce8d6de90cf436819ff1

Threat Level: Known bad

The file 8dba1b3a3a7280fb8070dfbf25cabdee_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

urelas discovery trojan

Urelas

Urelas family

Loads dropped DLL

Deletes itself

Executes dropped EXE

Checks computer location settings

System Location Discovery: System Language Discovery

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-12 06:49

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 06:49

Reported

2024-08-12 06:51

Platform

win7-20240729-en

Max time kernel

119s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8dba1b3a3a7280fb8070dfbf25cabdee_JaffaCakes118.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\8dba1b3a3a7280fb8070dfbf25cabdee_JaffaCakes118.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\8dba1b3a3a7280fb8070dfbf25cabdee_JaffaCakes118.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\8dba1b3a3a7280fb8070dfbf25cabdee_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\8dba1b3a3a7280fb8070dfbf25cabdee_JaffaCakes118.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/2224-0-0x00000000009B0000-0x00000000009E1000-memory.dmp

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

MD5 1d91384915770b5270151bda16bc6fdb
SHA1 fae7cd8346a61878cd238cffd21ed9adecbbe67e
SHA256 4df7e3116a703605512b0b103190293305d36dd545c97b2dbe09c70de3f44c73
SHA512 ee802fdac0c94fe2c77833d5eae88e14ed24b4400fa07395d3fdcd39a62928c6cd4de90a617f251e84a97ddbb64500dc73e9dea9bb420daf6020b922ba20d009

memory/1940-10-0x0000000000C40000-0x0000000000C71000-memory.dmp

memory/2224-9-0x0000000000540000-0x0000000000571000-memory.dmp

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

MD5 36e2b3847da3660e686bee81a9f00747
SHA1 2376556812bd4717e6dd0731d9e4e3a5e79ff92b
SHA256 59d4f9698294e678e88d98c4277e551503536af859eb9dd49495edddf38fab1a
SHA512 56d17371ec0aff73c6e2023ca00561a2ee2ff9cec52e1224c95c2aadb9024e4cda718adf8946d898162c865fcccb72c9d7fed4a207ddbf08ea23e5fdf03ef65a

memory/2224-18-0x00000000009B0000-0x00000000009E1000-memory.dmp

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

MD5 ede6388dfbb03ff576508b085d03e793
SHA1 71d2e779ac6ed074b5698651a8c7fa3b047ccb50
SHA256 779c0d78580692dadb2978ddfcd44d68f8282bb3453c638c9a4c2feecc1b96f8
SHA512 097e3b9b2ad80944e542785db3a9062ecb2c657192d96659dcc5267f362b186c91722f2bc103f19ef895e6d9821cf33d262569fae23605888d75f38d2e30093b

memory/1940-21-0x0000000000C40000-0x0000000000C71000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-12 06:49

Reported

2024-08-12 06:51

Platform

win10v2004-20240802-en

Max time kernel

139s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8dba1b3a3a7280fb8070dfbf25cabdee_JaffaCakes118.exe"

Signatures

Urelas

trojan urelas

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\8dba1b3a3a7280fb8070dfbf25cabdee_JaffaCakes118.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\8dba1b3a3a7280fb8070dfbf25cabdee_JaffaCakes118.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\8dba1b3a3a7280fb8070dfbf25cabdee_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\8dba1b3a3a7280fb8070dfbf25cabdee_JaffaCakes118.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 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 39.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
KR 112.175.88.209:11120 tcp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
KR 112.175.88.208:11150 tcp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
KR 112.175.88.209:11170 tcp
US 8.8.8.8:53 99.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
KR 112.175.88.207:11150 tcp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp

Files

memory/3032-0-0x0000000000A90000-0x0000000000AC1000-memory.dmp

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

MD5 fc1254c0e425d1c74d9075d936e57a72
SHA1 e9e807ac784f8b1cf9964b9690df89d915300d11
SHA256 4c5bad2d17120b8b3ab1f4b4dcb9a39c6fbce7ab0382a0356247d86f14211090
SHA512 64caa257183aaf85d7c97457f48177defbf228ab46da45b5b85b2bf82718058413a7f5d0de35d290503cde462bfaac65a81f6dcb9d29bcf02e1725c1958861af

memory/3356-15-0x0000000000F00000-0x0000000000F31000-memory.dmp

memory/3032-17-0x0000000000A90000-0x0000000000AC1000-memory.dmp

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

MD5 36e2b3847da3660e686bee81a9f00747
SHA1 2376556812bd4717e6dd0731d9e4e3a5e79ff92b
SHA256 59d4f9698294e678e88d98c4277e551503536af859eb9dd49495edddf38fab1a
SHA512 56d17371ec0aff73c6e2023ca00561a2ee2ff9cec52e1224c95c2aadb9024e4cda718adf8946d898162c865fcccb72c9d7fed4a207ddbf08ea23e5fdf03ef65a

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

MD5 ede6388dfbb03ff576508b085d03e793
SHA1 71d2e779ac6ed074b5698651a8c7fa3b047ccb50
SHA256 779c0d78580692dadb2978ddfcd44d68f8282bb3453c638c9a4c2feecc1b96f8
SHA512 097e3b9b2ad80944e542785db3a9062ecb2c657192d96659dcc5267f362b186c91722f2bc103f19ef895e6d9821cf33d262569fae23605888d75f38d2e30093b

memory/3356-20-0x0000000000F00000-0x0000000000F31000-memory.dmp