Malware Analysis Report

2024-11-16 13:28

Sample ID 240813-2bbchszana
Target 94fa46c0d33ef4228a3af37e394e65f6_JaffaCakes118
SHA256 d87b7a073a0353bf5c985d626f4cbaeb763f044316cfef83b41b40aef213d44c
Tags
urelas discovery trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

d87b7a073a0353bf5c985d626f4cbaeb763f044316cfef83b41b40aef213d44c

Threat Level: Known bad

The file 94fa46c0d33ef4228a3af37e394e65f6_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

urelas discovery trojan

Urelas

Urelas family

Deletes itself

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-13 22:23

Signatures

Urelas family

urelas

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-13 22:23

Reported

2024-08-13 22:26

Platform

win10v2004-20240802-en

Max time kernel

143s

Max time network

145s

Command Line

"C:\Users\Admin\AppData\Local\Temp\94fa46c0d33ef4228a3af37e394e65f6_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\94fa46c0d33ef4228a3af37e394e65f6_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:\Users\Admin\AppData\Local\Temp\94fa46c0d33ef4228a3af37e394e65f6_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\94fa46c0d33ef4228a3af37e394e65f6_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\94fa46c0d33ef4228a3af37e394e65f6_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 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 69.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
KR 112.175.88.209:11120 tcp
KR 112.175.88.208:11150 tcp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.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 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
KR 112.175.88.207:11150 tcp
US 8.8.8.8:53 22.236.111.52.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 8.8.8.8:53 10.28.171.150.in-addr.arpa udp

Files

memory/1408-0-0x0000000000B90000-0x0000000000BCD000-memory.dmp

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

MD5 fae7afce466d95e5ba706d12bd9c3189
SHA1 095568a90a7b4ab4d2e85430e1d01f9ef6c0b469
SHA256 8f437435152c03e4e7d7ca3960117df8f585f38db0666990955ed5c8dd17b750
SHA512 23b4c227a7fdcd371f7a6670ca90fe7370b69ba7ab239298380ba550c1f450991dba23171d0ea6794e133123e11c183c9fed4730baadc09900c841dbfe53489d

memory/3160-12-0x0000000000C70000-0x0000000000CAD000-memory.dmp

memory/1408-14-0x0000000000B90000-0x0000000000BCD000-memory.dmp

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

MD5 cd491338cfb67a255e30430a7c709976
SHA1 09dc02c4293d817f93a7aa645a1b4f82f5af6635
SHA256 941b5eb2672b3644e2af70ff21b716b630c19d726667b9f15fb7d0b1d878c5f1
SHA512 58b0a6e4be3d448eb9e9099bb845559273036e10bc689609d109751faaebfe8e9635e2dfddf71bbfd9ee3ce9730fcae817a4cbf9b2bbfff02e1bcdac21d7eb1a

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

MD5 7295fb9368a0ef278de4b9755bf9fa1b
SHA1 db5fa220d77ed7824ae0a4f822e0ce46010a5d77
SHA256 dd259fcdbf04aa773ede7515d6a83e5b112ed3d9eef4632cf856771bfeaafd98
SHA512 dd1a996311188c0baa54097fc7023f13e71115265fadb9dfa35f2a8d9df8aed1e37bd00ef612577d2eb63ba1b612a7b16a765ebfce3b7c9e7efebe54890eb88a

memory/3160-17-0x0000000000C70000-0x0000000000CAD000-memory.dmp

memory/3160-18-0x0000000000C70000-0x0000000000CAD000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-13 22:23

Reported

2024-08-13 22:26

Platform

win7-20240708-en

Max time kernel

121s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\94fa46c0d33ef4228a3af37e394e65f6_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\94fa46c0d33ef4228a3af37e394e65f6_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\94fa46c0d33ef4228a3af37e394e65f6_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\94fa46c0d33ef4228a3af37e394e65f6_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\94fa46c0d33ef4228a3af37e394e65f6_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/3040-0-0x00000000000A0000-0x00000000000DD000-memory.dmp

memory/3040-18-0x00000000000A0000-0x00000000000DD000-memory.dmp

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

MD5 da6f0a0f2d73e59301e18de1a2dac88f
SHA1 02cca0f42ebf0a408eb0f7e8abebcfbfe8cc73e8
SHA256 1a820ae040e66a71d680539876e9df51b8771ecaffe42401bc93bb8e3d985ba4
SHA512 234f9b96eb64135743c1f8d487a4589afa2f60da7afd1312087fd2103a9b9b050bbefc65a0890ea586b6f6f8d1717e3996ddc49f6ad2814ebdd5c3ecaa6cfdd4

memory/1728-17-0x00000000011B0000-0x00000000011ED000-memory.dmp

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

MD5 cd491338cfb67a255e30430a7c709976
SHA1 09dc02c4293d817f93a7aa645a1b4f82f5af6635
SHA256 941b5eb2672b3644e2af70ff21b716b630c19d726667b9f15fb7d0b1d878c5f1
SHA512 58b0a6e4be3d448eb9e9099bb845559273036e10bc689609d109751faaebfe8e9635e2dfddf71bbfd9ee3ce9730fcae817a4cbf9b2bbfff02e1bcdac21d7eb1a

memory/3040-16-0x0000000001CC0000-0x0000000001CFD000-memory.dmp

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

MD5 7295fb9368a0ef278de4b9755bf9fa1b
SHA1 db5fa220d77ed7824ae0a4f822e0ce46010a5d77
SHA256 dd259fcdbf04aa773ede7515d6a83e5b112ed3d9eef4632cf856771bfeaafd98
SHA512 dd1a996311188c0baa54097fc7023f13e71115265fadb9dfa35f2a8d9df8aed1e37bd00ef612577d2eb63ba1b612a7b16a765ebfce3b7c9e7efebe54890eb88a

memory/1728-21-0x00000000011B0000-0x00000000011ED000-memory.dmp

memory/1728-22-0x00000000011B0000-0x00000000011ED000-memory.dmp