Analysis Overview
SHA256
a61b00289f9c9ea241546df20ef4b9740ffe672b6621db5d27ca6fa311b9488b
Threat Level: Known bad
The file 3cb6a7288517a560ff1d380d8e8ebf50_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Urelas
Urelas family
Checks computer location settings
Executes dropped EXE
Deletes itself
Loads dropped DLL
UPX packed file
Unsigned PE
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-10-12 23:58
Signatures
Urelas family
UPX packed file
| 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 |
Analysis: behavioral2
Detonation Overview
Submitted
2024-10-12 23:58
Reported
2024-10-13 00:00
Platform
win10v2004-20241007-en
Max time kernel
150s
Max time network
95s
Command Line
Signatures
Urelas
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\3cb6a7288517a560ff1d380d8e8ebf50_JaffaCakes118.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\gyewl.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\gyewl.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\polyy.exe | N/A |
UPX packed file
| 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 |
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\3cb6a7288517a560ff1d380d8e8ebf50_JaffaCakes118.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\gyewl.exe | N/A |
| 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\polyy.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\3cb6a7288517a560ff1d380d8e8ebf50_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3cb6a7288517a560ff1d380d8e8ebf50_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\gyewl.exe
"C:\Users\Admin\AppData\Local\Temp\gyewl.exe"
C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\_uinsey.bat" "
C:\Users\Admin\AppData\Local\Temp\polyy.exe
"C:\Users\Admin\AppData\Local\Temp\polyy.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 14.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| KR | 218.54.31.226:11110 | tcp | |
| KR | 1.234.83.146:11170 | tcp | |
| US | 8.8.8.8:53 | 200.163.202.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| KR | 218.54.31.165:11110 | tcp | |
| JP | 133.242.129.155:11110 | tcp | |
| US | 8.8.8.8:53 | 11.227.111.52.in-addr.arpa | udp |
Files
memory/5076-0-0x0000000000400000-0x000000000048B000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\gyewl.exe
| MD5 | 90afcb180021eae006c7bc08ff0fb9f1 |
| SHA1 | 204666cdb3cf37609b0585491645c41d4a5b9cdc |
| SHA256 | ce664eb97bf7c3088688937b68e0e0124abed29f0dff0d9615abcf62ca7e55ea |
| SHA512 | bcae7263c20ba4d55db626f78ff7e6755adec7bc324f8f17c0811f5f2c76de07a984b28c8727f513315c4a23be9d0ead35ef7c7926aaa2fb361fec11a35aa8e8 |
memory/5076-13-0x0000000000400000-0x000000000048B000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\_uinsey.bat
| MD5 | f3ab88fe91ac7fa730e72c91aa008dc9 |
| SHA1 | f9f8f62100cb4a0c3fd56d2f2e5fd66ff10bba26 |
| SHA256 | 2db45ae9ccce1626f7df16c67b15deb74c16f6690fff7f5577843bf095491470 |
| SHA512 | 8045c1827b2c437656bd4c6fe301b3a9f5ffbd50cf320e0ef15852f38cd6b0898e2c2d2bbb67c3f52a4142e73f260247583512f08da9c1af6cf9a438767b24ec |
C:\Users\Admin\AppData\Local\Temp\golfinfo.ini
| MD5 | c484b5757f32e853976d9bfa65ce4297 |
| SHA1 | 071a17d0c9626d42d3ef1b154cf78c19b366efaa |
| SHA256 | 89eee34262a38af181f4db87f6c4b89f89e36fbd64b75d6d4acf0810a7a8b61a |
| SHA512 | 5be448758e67a77f94ea712cae261008fbeeda82129b57b235d66cf7c9f59047ce85eed416c35e78efbfa564b044c0daed074fb04cae7eed182c5c53a37ae66a |
memory/3212-16-0x0000000000400000-0x000000000048B000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\polyy.exe
| MD5 | 54a24a5f8d8f051adfc985c6f1d1504f |
| SHA1 | a9f07d073df389d665ff9bcde181091c29b2b356 |
| SHA256 | 2d48368273b25659144d32829ecdab32fd004b8370974b9e9c9176798b5415fb |
| SHA512 | 93e5b64e575d1aa58e73f76593c1bdb98f1dfc2a057aea292c0d8fbddabf48aa4a1259681dddf146001114c1ef97d48cc654bbff8d39312f4e9cd204d9a18799 |
memory/208-25-0x0000000000A10000-0x0000000000AC6000-memory.dmp
memory/3212-26-0x0000000000400000-0x000000000048B000-memory.dmp
memory/208-27-0x0000000000C30000-0x0000000000C31000-memory.dmp
memory/208-29-0x0000000000A10000-0x0000000000AC6000-memory.dmp
memory/208-30-0x0000000000A10000-0x0000000000AC6000-memory.dmp
memory/208-31-0x0000000000A10000-0x0000000000AC6000-memory.dmp
memory/208-32-0x0000000000A10000-0x0000000000AC6000-memory.dmp
memory/208-33-0x0000000000A10000-0x0000000000AC6000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-10-12 23:58
Reported
2024-10-13 00:00
Platform
win7-20241010-en
Max time kernel
150s
Max time network
124s
Command Line
Signatures
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\opolz.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\ewije.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3cb6a7288517a560ff1d380d8e8ebf50_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\opolz.exe | N/A |
UPX packed file
| 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
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\3cb6a7288517a560ff1d380d8e8ebf50_JaffaCakes118.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\opolz.exe | N/A |
| 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\ewije.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\3cb6a7288517a560ff1d380d8e8ebf50_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3cb6a7288517a560ff1d380d8e8ebf50_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\opolz.exe
"C:\Users\Admin\AppData\Local\Temp\opolz.exe"
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\_uinsey.bat" "
C:\Users\Admin\AppData\Local\Temp\ewije.exe
"C:\Users\Admin\AppData\Local\Temp\ewije.exe"
Network
| Country | Destination | Domain | Proto |
| KR | 218.54.31.226:11110 | tcp | |
| KR | 1.234.83.146:11170 | tcp | |
| KR | 218.54.31.165:11110 | tcp | |
| JP | 133.242.129.155:11110 | tcp |
Files
memory/2824-0-0x0000000000400000-0x000000000048B000-memory.dmp
\Users\Admin\AppData\Local\Temp\opolz.exe
| MD5 | 1ccf894f902c995c9dd34781c4971741 |
| SHA1 | dc601f4ab065c962100aec52a8014f26ebe8544f |
| SHA256 | e9a6546ad03c4ecbc7eef3f7b0be21c71253fd3c02d7dcd7508e692c4903cbe9 |
| SHA512 | c8ce96a81817fcf630cccc6bb436492820002410da533d16c0bafda19eed4f9b7de73ca9fc09373f0fa6b48745ad812a504f022aa833e9a6c511b6a1e2e301c5 |
memory/2228-10-0x0000000000400000-0x000000000048B000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\_uinsey.bat
| MD5 | f3ab88fe91ac7fa730e72c91aa008dc9 |
| SHA1 | f9f8f62100cb4a0c3fd56d2f2e5fd66ff10bba26 |
| SHA256 | 2db45ae9ccce1626f7df16c67b15deb74c16f6690fff7f5577843bf095491470 |
| SHA512 | 8045c1827b2c437656bd4c6fe301b3a9f5ffbd50cf320e0ef15852f38cd6b0898e2c2d2bbb67c3f52a4142e73f260247583512f08da9c1af6cf9a438767b24ec |
memory/2824-17-0x0000000000400000-0x000000000048B000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\golfinfo.ini
| MD5 | 60ece94363e293c773216553e4292ffe |
| SHA1 | e23c299e421676987313ab6411a56745462fe30c |
| SHA256 | 7cff9cd5ae108273a5fa0cfc9b3f9db123e5116f3bbac1d7c61622a21631ba87 |
| SHA512 | 8fbfa936a4b71337e27a40ef511d9a60d7b3f59c487a414748da730b7a476d131fd78c62d3f72bf08ae004ab28321c16bd056f4a7a438619063685726dfa74e1 |
memory/2228-20-0x0000000000400000-0x000000000048B000-memory.dmp
\Users\Admin\AppData\Local\Temp\ewije.exe
| MD5 | 42b221d6cf6e6993ef88af0574f4a9b9 |
| SHA1 | 98d682267cc8e0ebbb30d34eec518aab6e4c0d40 |
| SHA256 | c7c0eee9bc9afae84f93f8b46960aea8db727f7add056f319f3e04dcb36df386 |
| SHA512 | fc4bfd5a5036e23f76a9bea419fc60ef367825796126f31f7749568c2962d180231d76aae4b227183c94906efdbb700da79f65839c76ab58e803476d086ad5f4 |
memory/3024-28-0x0000000000CE0000-0x0000000000D96000-memory.dmp
memory/2228-27-0x0000000000400000-0x000000000048B000-memory.dmp
memory/3024-30-0x0000000000CE0000-0x0000000000D96000-memory.dmp
memory/3024-31-0x0000000000CE0000-0x0000000000D96000-memory.dmp
memory/3024-32-0x0000000000CE0000-0x0000000000D96000-memory.dmp
memory/3024-33-0x0000000000CE0000-0x0000000000D96000-memory.dmp
memory/3024-34-0x0000000000CE0000-0x0000000000D96000-memory.dmp