Analysis Overview
SHA256
1951aba7abd07188e2a0d3b611930590e945e38a08f02e2463952f695cb1c02a
Threat Level: Known bad
The file 963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Modifies WinLogon for persistence
Drops file in Drivers directory
Sets service image path in registry
UPX packed file
Loads dropped DLL
ACProtect 1.3x - 1.4x DLL software
Modifies WinLogon
Adds Run key to start application
Installs/modifies Browser Helper Object
Enumerates connected drives
Drops file in System32 directory
Unsigned PE
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-06-04 21:01
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-04 21:01
Reported
2024-06-04 21:04
Platform
win10v2004-20240508-en
Max time kernel
150s
Max time network
128s
Command Line
Signatures
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe" | C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe," | C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe | N/A |
Drops file in Drivers directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\drivers\spools.exe | C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe | N/A |
| File created | C:\Windows\SysWOW64\drivers\spools.exe | C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe | N/A |
Sets service image path in registry
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Schedule\ImagePath = "C:\\Windows\\system32\\drivers\\spools.exe" | C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe | N/A |
ACProtect 1.3x - 1.4x DLL software
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.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 |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\autoload = "C:\\Users\\Admin\\Local Settings\\Application Data\\cftmon.exe" | C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ntuser = "C:\\Windows\\system32\\drivers\\spools.exe" | C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\autoload = "C:\\Users\\Admin\\Local Settings\\Application Data\\cftmon.exe" | C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ntuser = "C:\\Windows\\system32\\drivers\\spools.exe" | C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe | N/A |
Enumerates connected drives
Installs/modifies Browser Helper Object
| Description | Indicator | Process | Target |
| Key deleted | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{1FD49718-1D00-4B19-AF5F-070AF6D5D54C} | C:\Windows\SysWOW64\reg.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{31D09BA0-12F5-4CCE-BE8A-2923E76605DA} | C:\Windows\SysWOW64\reg.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects | C:\Windows\SysWOW64\reg.exe | N/A |
Modifies WinLogon
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\UIHost = "logonui.exe" | C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\ftpdll.dll | C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe
C:\Windows\SysWOW64\reg.exe
reg delete "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects" /f
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4176,i,5711962389779687290,1245653010537220991,262144 --variations-seed-version --mojo-platform-channel-handle=4100 /prefetch:8
C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 104.219.191.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 249.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 74.32.126.40.in-addr.arpa | udp |
| BE | 88.221.83.185:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 185.83.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | fewfwe.com | udp |
| US | 54.161.222.85:80 | fewfwe.com | tcp |
| US | 8.8.8.8:53 | www.hugedomains.com | udp |
| US | 104.26.7.37:443 | www.hugedomains.com | tcp |
| US | 8.8.8.8:53 | fewfwe.net | udp |
| US | 8.8.8.8:53 | 85.222.161.54.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 37.7.26.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 67.169.217.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| NL | 52.142.223.178:80 | 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 |
| US | 8.8.8.8:53 | 14.227.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
Files
memory/3396-0-0x0000000000400000-0x0000000000423000-memory.dmp
C:\Users\Admin\AppData\Local\cftmon.exe
| MD5 | fe92d8a86416716ae4399bf7f3482af6 |
| SHA1 | 03c79cc77f3ed842aa6f5b908902594cf0123e4d |
| SHA256 | eb04f77e1d8c7c24b3282c2d2d482e27e8990d0e66cdf128f252ce2e9ce42e29 |
| SHA512 | c6261f7168f2fbd7556f8d0463626e576c60b49e0043aec0afaee08fd10ebc830f1910fdb799c1846ae5fb89471466cd32ff8f1e10c2cb024a19721d8fce2c9f |
C:\Windows\SysWOW64\ftpdll.dll
| MD5 | d807aa04480d1d149f7a4cac22984188 |
| SHA1 | ffd5be65fd10017e34c11cecd105ebf4aa6c0cd9 |
| SHA256 | eddf092d901afe128322910c3ff41a3f242d33d6b4cdf91ece327076b324ccbb |
| SHA512 | 875543583c20ab164f37a4fb2587d234ce0a15d649d22b0d1dae5933f0a7683db170578746ea4458c51fec26e2243c6ec00dc10db8d4289789e50d5800cf863e |
memory/3396-18-0x0000000010000000-0x000000001010B000-memory.dmp
memory/2064-19-0x0000000000400000-0x0000000000423000-memory.dmp
memory/3396-21-0x0000000000400000-0x0000000000423000-memory.dmp
memory/3964-23-0x0000000000400000-0x0000000000423000-memory.dmp
memory/4356-24-0x0000000000400000-0x0000000000423000-memory.dmp
memory/2064-25-0x0000000000400000-0x0000000000423000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-04 21:01
Reported
2024-06-04 21:04
Platform
win7-20240221-en
Max time kernel
150s
Max time network
119s
Command Line
Signatures
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe" | C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe," | C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe | N/A |
Drops file in Drivers directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\drivers\spools.exe | C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe | N/A |
| File opened for modification | C:\Windows\SysWOW64\drivers\spools.exe | C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe | N/A |
Sets service image path in registry
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Schedule\ImagePath = "C:\\Windows\\system32\\drivers\\spools.exe" | C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe | N/A |
ACProtect 1.3x - 1.4x DLL software
| 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 |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.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 |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\autoload = "C:\\Users\\Admin\\Local Settings\\Application Data\\cftmon.exe" | C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\ntuser = "C:\\Windows\\system32\\drivers\\spools.exe" | C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\autoload = "C:\\Users\\Admin\\Local Settings\\Application Data\\cftmon.exe" | C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ntuser = "C:\\Windows\\system32\\drivers\\spools.exe" | C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe | N/A |
Enumerates connected drives
Installs/modifies Browser Helper Object
| Description | Indicator | Process | Target |
| Key deleted | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{18DF081C-E8AD-4283-A596-FA578C2EBDC3} | C:\Windows\SysWOW64\reg.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{72853161-30C5-4D22-B7F9-0BBC1D38A37E} | C:\Windows\SysWOW64\reg.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects\{B4F3A835-0E21-4959-BA22-42B3008E02FF} | C:\Windows\SysWOW64\reg.exe | N/A |
| Key deleted | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer\Browser Helper Objects | C:\Windows\SysWOW64\reg.exe | N/A |
Modifies WinLogon
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\UIHost = "logonui.exe" | C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\SysWOW64\ftpdll.dll | C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe
C:\Users\Admin\AppData\Local\Temp\963d859acfcb4eb55c6ccbfb5deb1a13_JaffaCakes118.exe
C:\Windows\SysWOW64\reg.exe
reg delete "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects" /f
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | fewfwe.com | udp |
| US | 3.18.7.81:80 | fewfwe.com | tcp |
Files
memory/2020-0-0x0000000000400000-0x0000000000423000-memory.dmp
memory/2172-1-0x0000000000400000-0x0000000000423000-memory.dmp
memory/2860-3-0x0000000000400000-0x0000000000423000-memory.dmp
memory/2172-2-0x00000000001C0000-0x00000000001E3000-memory.dmp
C:\Users\Admin\AppData\Local\cftmon.exe
| MD5 | e9c39f4607b929c974dbec8a08d694ab |
| SHA1 | b8e9039fe0d7816c64660632f8017ac71092dcbc |
| SHA256 | 330242c24c82753783e907fc4978f76f8bf6be5d508a5570d439bdc60d2206ba |
| SHA512 | 585b4892898f1a5a9415e8e35d0135d5016b4865b274a5179b54d373f2292985b78d8839e2a281d6f7ebb2f91acaadc282cf8f3e85b3d1f8a160b019228421c9 |
\Windows\SysWOW64\ftpdll.dll
| MD5 | d807aa04480d1d149f7a4cac22984188 |
| SHA1 | ffd5be65fd10017e34c11cecd105ebf4aa6c0cd9 |
| SHA256 | eddf092d901afe128322910c3ff41a3f242d33d6b4cdf91ece327076b324ccbb |
| SHA512 | 875543583c20ab164f37a4fb2587d234ce0a15d649d22b0d1dae5933f0a7683db170578746ea4458c51fec26e2243c6ec00dc10db8d4289789e50d5800cf863e |
memory/2020-14-0x0000000010000000-0x000000001010B000-memory.dmp
memory/2020-17-0x0000000010000000-0x000000001010B000-memory.dmp
memory/2020-16-0x0000000000400000-0x0000000000423000-memory.dmp
memory/2172-18-0x0000000000400000-0x0000000000423000-memory.dmp
memory/2056-19-0x0000000000400000-0x0000000000423000-memory.dmp
memory/2172-20-0x00000000001C0000-0x00000000001E3000-memory.dmp
memory/2860-21-0x0000000000400000-0x0000000000423000-memory.dmp