Analysis Overview
SHA256
75ea76bdcff9f550c267497e50b596ef25e7b98ec8c1c4452d5a8fb18a9dd47d
Threat Level: Known bad
The file 899b29c5620b35ed01f26ee936fc2524_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Urelas
Deletes itself
Executes dropped EXE
Loads dropped DLL
Checks computer location settings
Enumerates physical storage devices
Unsigned PE
System Location Discovery: System Language Discovery
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-11 08:00
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-11 08:00
Reported
2024-08-11 08:02
Platform
win7-20240708-en
Max time kernel
117s
Max time network
118s
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\biudfw.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\899b29c5620b35ed01f26ee936fc2524_JaffaCakes118.exe | 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\899b29c5620b35ed01f26ee936fc2524_JaffaCakes118.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\biudfw.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\899b29c5620b35ed01f26ee936fc2524_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\899b29c5620b35ed01f26ee936fc2524_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\biudfw.exe
"C:\Users\Admin\AppData\Local\Temp\biudfw.exe"
C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\sanfdr.bat" "
Network
| Country | Destination | Domain | Proto |
| KR | 218.54.47.76:11120 | tcp | |
| KR | 218.54.47.74:11150 | tcp | |
| KR | 218.54.47.76:11170 | tcp | |
| KR | 218.54.47.77:11150 | tcp |
Files
memory/2404-0-0x0000000001100000-0x0000000001135000-memory.dmp
\Users\Admin\AppData\Local\Temp\biudfw.exe
| MD5 | 995f51e5c298295f4381d284130834bf |
| SHA1 | 01c707635da0eb2957eaa588e91b3ed4ae3ec7ab |
| SHA256 | 31da0bea03db239c8588a731df975c6ddfe92f215065862297ed0381c4d143e5 |
| SHA512 | 457ca47b18328ffed83798820c90b2d6264b0940e2f5a3271e56ed784124b9349431dca209ad744fa654bf06fbedcd66c2d9364055e44e242d5d92a0c1f3a289 |
memory/2404-6-0x00000000003D0000-0x0000000000405000-memory.dmp
memory/2472-11-0x00000000013D0000-0x0000000001405000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\sanfdr.bat
| MD5 | b1f9b3379d50172642cd7be1e1a02970 |
| SHA1 | 54325d07893b9cadf105cedc506c30a0c850d385 |
| SHA256 | 60c0238f3511645ddd13a8be7a8d94f8515440a98d296360b8155830a8381ac7 |
| SHA512 | e460759afb64690d29ec94937dc32469eac31795742c4b924d7e77b3dd844673e14f836876dce524e99886663ea4ab96d07a17e9e26f6bd05bb16536d600b2b7 |
memory/2404-19-0x0000000001100000-0x0000000001135000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\golfinfo.ini
| MD5 | 55e10a9af74d3f3fa5ae3cb7ff5ad9d4 |
| SHA1 | 449221fd8d7196a54de2bd583625d8d1b64db56a |
| SHA256 | a945a44cfe50423c01f26a16445ed177a347052e791364a9cb7de6bcaa18f3c1 |
| SHA512 | 4af5ba74467b4c61302ea9571f19346c05f911843f2c6153fcd9a7340f9bc6e1f8867cdb72ec7ba0dc4930199aa5c302711ad5da9fd35241839418f6e70a515a |
memory/2472-22-0x00000000013D0000-0x0000000001405000-memory.dmp
memory/2472-24-0x00000000013D0000-0x0000000001405000-memory.dmp
memory/2472-30-0x00000000013D0000-0x0000000001405000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-11 08:00
Reported
2024-08-11 08:02
Platform
win10v2004-20240802-en
Max time kernel
149s
Max time network
150s
Command Line
Signatures
Urelas
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\899b29c5620b35ed01f26ee936fc2524_JaffaCakes118.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\biudfw.exe | 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\biudfw.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\899b29c5620b35ed01f26ee936fc2524_JaffaCakes118.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1908 wrote to memory of 1652 | N/A | C:\Users\Admin\AppData\Local\Temp\899b29c5620b35ed01f26ee936fc2524_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\biudfw.exe |
| PID 1908 wrote to memory of 1652 | N/A | C:\Users\Admin\AppData\Local\Temp\899b29c5620b35ed01f26ee936fc2524_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\biudfw.exe |
| PID 1908 wrote to memory of 1652 | N/A | C:\Users\Admin\AppData\Local\Temp\899b29c5620b35ed01f26ee936fc2524_JaffaCakes118.exe | C:\Users\Admin\AppData\Local\Temp\biudfw.exe |
| PID 1908 wrote to memory of 2164 | N/A | C:\Users\Admin\AppData\Local\Temp\899b29c5620b35ed01f26ee936fc2524_JaffaCakes118.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1908 wrote to memory of 2164 | N/A | C:\Users\Admin\AppData\Local\Temp\899b29c5620b35ed01f26ee936fc2524_JaffaCakes118.exe | C:\Windows\SysWOW64\cmd.exe |
| PID 1908 wrote to memory of 2164 | N/A | C:\Users\Admin\AppData\Local\Temp\899b29c5620b35ed01f26ee936fc2524_JaffaCakes118.exe | C:\Windows\SysWOW64\cmd.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\899b29c5620b35ed01f26ee936fc2524_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\899b29c5620b35ed01f26ee936fc2524_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\biudfw.exe
"C:\Users\Admin\AppData\Local\Temp\biudfw.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 | 133.211.185.52.in-addr.arpa | udp |
| 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 | 64.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| KR | 218.54.47.76:11120 | tcp | |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| KR | 218.54.47.74:11150 | 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 |
| KR | 218.54.47.76:11170 | tcp | |
| US | 8.8.8.8:53 | 81.144.22.2.in-addr.arpa | udp |
| KR | 218.54.47.77:11150 | 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/1908-0-0x0000000000340000-0x0000000000375000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\biudfw.exe
| MD5 | ceb9b2dfdeba334805dbc552fdf98bc7 |
| SHA1 | b0ab6f06346e824542a2475f5193a2c6608c2b47 |
| SHA256 | 9fc4c4d30e4c5ba9b843827b0833b78f25159203a2922e5d59b63fe5fdad5985 |
| SHA512 | 24b162587c74d1b3140ff1f60daf7b7a6e1aa2b547aa27e5e898176b04fb201c6212a8b750729231ef6a85ecd388cca59d3830a5c4e42a9aa9cfc868ea175c8b |
memory/1652-13-0x0000000000070000-0x00000000000A5000-memory.dmp
memory/1908-15-0x0000000000340000-0x0000000000375000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\sanfdr.bat
| MD5 | b1f9b3379d50172642cd7be1e1a02970 |
| SHA1 | 54325d07893b9cadf105cedc506c30a0c850d385 |
| SHA256 | 60c0238f3511645ddd13a8be7a8d94f8515440a98d296360b8155830a8381ac7 |
| SHA512 | e460759afb64690d29ec94937dc32469eac31795742c4b924d7e77b3dd844673e14f836876dce524e99886663ea4ab96d07a17e9e26f6bd05bb16536d600b2b7 |
C:\Users\Admin\AppData\Local\Temp\golfinfo.ini
| MD5 | 55e10a9af74d3f3fa5ae3cb7ff5ad9d4 |
| SHA1 | 449221fd8d7196a54de2bd583625d8d1b64db56a |
| SHA256 | a945a44cfe50423c01f26a16445ed177a347052e791364a9cb7de6bcaa18f3c1 |
| SHA512 | 4af5ba74467b4c61302ea9571f19346c05f911843f2c6153fcd9a7340f9bc6e1f8867cdb72ec7ba0dc4930199aa5c302711ad5da9fd35241839418f6e70a515a |
memory/1652-18-0x0000000000070000-0x00000000000A5000-memory.dmp
memory/1652-20-0x0000000000070000-0x00000000000A5000-memory.dmp
memory/1652-27-0x0000000000070000-0x00000000000A5000-memory.dmp