Analysis Overview
SHA256
638f714836e4a7f98e54d185afd717ccf1d75293c5c0b23e3f3bd5a09d5b3fe1
Threat Level: Known bad
The file JaffaCakes118_0875ca39c874289d82bab473897ffb7c was found to be: Known bad.
Malicious Activity Summary
Vobfus
Vobfus family
Adds policy Run key to start application
Adds Run key to start application
UPX packed file
Suspicious use of SetThreadContext
System Location Discovery: System Language Discovery
Unsigned PE
Script User-Agent
Suspicious behavior: RenamesItself
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2025-02-19 23:58
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2025-02-19 23:58
Reported
2025-02-20 00:00
Platform
win7-20240903-en
Max time kernel
142s
Max time network
145s
Command Line
Signatures
Vobfus
Vobfus family
Adds policy Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\9ZOK0LE4KJ3SJ = "C:\\Users\\Admin\\AppData\\Roaming\\5G5HSPCDW7G.exe" | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0875ca39c874289d82bab473897ffb7c.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0875ca39c874289d82bab473897ffb7c.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\9ZOK0LE4KJ3SJ = "C:\\Users\\Admin\\AppData\\Roaming\\5G5HSPCDW7G.exe" | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0875ca39c874289d82bab473897ffb7c.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0875ca39c874289d82bab473897ffb7c.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\9ZOK0LE4KJ3SJ = "C:\\Users\\Admin\\AppData\\Roaming\\5G5HSPCDW7G.exe" | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0875ca39c874289d82bab473897ffb7c.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\9ZOK0LE4KJ3SJ = "C:\\Users\\Admin\\AppData\\Roaming\\5G5HSPCDW7G.exe" | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0875ca39c874289d82bab473897ffb7c.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2816 set thread context of 2672 | N/A | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0875ca39c874289d82bab473897ffb7c.exe | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0875ca39c874289d82bab473897ffb7c.exe |
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 |
| 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 |
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\JaffaCakes118_0875ca39c874289d82bab473897ffb7c.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0875ca39c874289d82bab473897ffb7c.exe | N/A |
Script User-Agent
| Description | Indicator | Process | Target |
| HTTP User-Agent header | Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) | N/A | N/A |
| HTTP User-Agent header | Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) | N/A | N/A |
Suspicious behavior: RenamesItself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0875ca39c874289d82bab473897ffb7c.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0875ca39c874289d82bab473897ffb7c.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0875ca39c874289d82bab473897ffb7c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0875ca39c874289d82bab473897ffb7c.exe"
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0875ca39c874289d82bab473897ffb7c.exe
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0875ca39c874289d82bab473897ffb7c.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | rsdumps.org | udp |
| US | 8.8.8.8:53 | rsbot.biz | udp |
| US | 8.8.8.8:53 | nexuspk.com | udp |
| US | 173.0.56.154:80 | nexuspk.com | tcp |
| US | 173.0.56.154:80 | nexuspk.com | tcp |
| US | 173.0.56.154:80 | nexuspk.com | tcp |
| US | 173.0.56.154:80 | nexuspk.com | tcp |
| US | 173.0.56.154:80 | nexuspk.com | tcp |
| US | 173.0.56.154:80 | nexuspk.com | tcp |
| US | 173.0.56.154:80 | nexuspk.com | tcp |
| US | 173.0.56.154:80 | nexuspk.com | tcp |
| US | 173.0.56.154:80 | nexuspk.com | tcp |
Files
memory/2816-0-0x0000000000400000-0x0000000000431000-memory.dmp
memory/2672-1-0x0000000000400000-0x000000000054D000-memory.dmp
memory/2672-3-0x0000000000400000-0x000000000054D000-memory.dmp
memory/2672-7-0x0000000000400000-0x000000000054D000-memory.dmp
memory/2672-13-0x0000000000400000-0x000000000054D000-memory.dmp
memory/2672-11-0x0000000000400000-0x000000000054D000-memory.dmp
memory/2672-10-0x0000000000400000-0x000000000054D000-memory.dmp
memory/2672-5-0x0000000000400000-0x000000000054D000-memory.dmp
memory/2816-8-0x0000000000400000-0x0000000000431000-memory.dmp
memory/2672-18-0x0000000000400000-0x000000000054D000-memory.dmp
memory/2672-20-0x0000000000400000-0x000000000054D000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\5g5hspcdw7g.exe.jpg
| MD5 | 0875ca39c874289d82bab473897ffb7c |
| SHA1 | 26080d593c21fbc3275a389057e22fdd07024209 |
| SHA256 | 638f714836e4a7f98e54d185afd717ccf1d75293c5c0b23e3f3bd5a09d5b3fe1 |
| SHA512 | d64d782102abc9061af8bccdf714433225614d7060c9dc055273273cad92298d67dffc7773673565b92571fbad0fcef855edd565115e53849a9204ef195a73c8 |
memory/2672-41-0x0000000000400000-0x000000000054D000-memory.dmp
memory/2672-42-0x0000000000400000-0x000000000054D000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2025-02-19 23:58
Reported
2025-02-20 00:00
Platform
win10v2004-20250217-en
Max time kernel
143s
Max time network
147s
Command Line
Signatures
Vobfus
Vobfus family
Adds policy Run key to start application
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0875ca39c874289d82bab473897ffb7c.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\9ZOK0LE4KJ3SJ = "C:\\Users\\Admin\\AppData\\Roaming\\5G5HSPCDW7G.exe" | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0875ca39c874289d82bab473897ffb7c.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3181990009-820930284-137514597-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0875ca39c874289d82bab473897ffb7c.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3181990009-820930284-137514597-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\9ZOK0LE4KJ3SJ = "C:\\Users\\Admin\\AppData\\Roaming\\5G5HSPCDW7G.exe" | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0875ca39c874289d82bab473897ffb7c.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\9ZOK0LE4KJ3SJ = "C:\\Users\\Admin\\AppData\\Roaming\\5G5HSPCDW7G.exe" | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0875ca39c874289d82bab473897ffb7c.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3181990009-820930284-137514597-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\9ZOK0LE4KJ3SJ = "C:\\Users\\Admin\\AppData\\Roaming\\5G5HSPCDW7G.exe" | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0875ca39c874289d82bab473897ffb7c.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 232 set thread context of 2920 | N/A | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0875ca39c874289d82bab473897ffb7c.exe | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0875ca39c874289d82bab473897ffb7c.exe |
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 |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
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\JaffaCakes118_0875ca39c874289d82bab473897ffb7c.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0875ca39c874289d82bab473897ffb7c.exe | N/A |
Script User-Agent
| Description | Indicator | Process | Target |
| HTTP User-Agent header | Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) | N/A | N/A |
| HTTP User-Agent header | Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) | N/A | N/A |
| HTTP User-Agent header | Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) | N/A | N/A |
| HTTP User-Agent header | Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) | N/A | N/A |
Suspicious behavior: RenamesItself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0875ca39c874289d82bab473897ffb7c.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0875ca39c874289d82bab473897ffb7c.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0875ca39c874289d82bab473897ffb7c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0875ca39c874289d82bab473897ffb7c.exe"
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0875ca39c874289d82bab473897ffb7c.exe
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0875ca39c874289d82bab473897ffb7c.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 150.171.27.10:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | rsdumps.org | udp |
| US | 8.8.8.8:53 | rsbot.biz | udp |
| US | 8.8.8.8:53 | nexuspk.com | udp |
| US | 173.0.56.154:80 | nexuspk.com | tcp |
| US | 173.0.56.154:80 | nexuspk.com | tcp |
| US | 8.8.8.8:53 | rsdumps.org | udp |
| US | 8.8.8.8:53 | rsbot.biz | udp |
| US | 173.0.56.154:80 | nexuspk.com | tcp |
| US | 8.8.8.8:53 | rsdumps.org | udp |
| US | 8.8.8.8:53 | rsbot.biz | udp |
| US | 173.0.56.154:80 | nexuspk.com | tcp |
| US | 8.8.8.8:53 | rsdumps.org | udp |
| US | 8.8.8.8:53 | rsbot.biz | udp |
| US | 173.0.56.154:80 | nexuspk.com | tcp |
| US | 8.8.8.8:53 | rsdumps.org | udp |
| US | 8.8.8.8:53 | rsbot.biz | udp |
| US | 173.0.56.154:80 | nexuspk.com | tcp |
| US | 8.8.8.8:53 | rsdumps.org | udp |
| US | 8.8.8.8:53 | rsbot.biz | udp |
| US | 173.0.56.154:80 | nexuspk.com | tcp |
| US | 8.8.8.8:53 | rsdumps.org | udp |
| US | 8.8.8.8:53 | rsbot.biz | udp |
| US | 173.0.56.154:80 | nexuspk.com | tcp |
| US | 8.8.8.8:53 | rsdumps.org | udp |
| US | 8.8.8.8:53 | rsbot.biz | udp |
| US | 173.0.56.154:80 | nexuspk.com | tcp |
| US | 8.8.8.8:53 | rsdumps.org | udp |
| US | 8.8.8.8:53 | rsbot.biz | udp |
| US | 173.0.56.154:80 | nexuspk.com | tcp |
| US | 8.8.8.8:53 | rsdumps.org | udp |
| US | 8.8.8.8:53 | rsbot.biz | udp |
| US | 173.0.56.154:80 | nexuspk.com | tcp |
| US | 8.8.8.8:53 | rsdumps.org | udp |
| US | 8.8.8.8:53 | rsbot.biz | udp |
| US | 173.0.56.154:80 | nexuspk.com | tcp |
Files
memory/232-0-0x0000000000400000-0x0000000000431000-memory.dmp
memory/2920-4-0x0000000000400000-0x000000000054D000-memory.dmp
memory/232-5-0x0000000000400000-0x0000000000431000-memory.dmp
memory/2920-3-0x0000000000400000-0x000000000054D000-memory.dmp
memory/2920-6-0x0000000000400000-0x000000000054D000-memory.dmp
memory/2920-7-0x0000000000400000-0x000000000054D000-memory.dmp
memory/2920-12-0x0000000000400000-0x000000000054D000-memory.dmp
memory/2920-13-0x0000000000400000-0x000000000054D000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\5g5hspcdw7g.exe.jpg
| MD5 | 0875ca39c874289d82bab473897ffb7c |
| SHA1 | 26080d593c21fbc3275a389057e22fdd07024209 |
| SHA256 | 638f714836e4a7f98e54d185afd717ccf1d75293c5c0b23e3f3bd5a09d5b3fe1 |
| SHA512 | d64d782102abc9061af8bccdf714433225614d7060c9dc055273273cad92298d67dffc7773673565b92571fbad0fcef855edd565115e53849a9204ef195a73c8 |
memory/2920-34-0x0000000000400000-0x000000000054D000-memory.dmp
memory/2920-53-0x0000000000400000-0x000000000054D000-memory.dmp