Analysis Overview
SHA256
560fc803cd88d0362d75b40fc0b3513330ff754c4d3115a7675aefb4b08fa36f
Threat Level: Known bad
The file f313185687c6097504477b7f37195cdf_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Tofsee
Windows security bypass
Creates new service(s)
Modifies Windows Firewall
Sets service image path in registry
Checks computer location settings
Deletes itself
Executes dropped EXE
Suspicious use of SetThreadContext
Launches sc.exe
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-16 08:18
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-16 08:18
Reported
2024-04-16 08:21
Platform
win7-20240220-en
Max time kernel
144s
Max time network
121s
Command Line
Signatures
Tofsee
Windows security bypass
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\feqvyilb = "0" | C:\Windows\SysWOW64\svchost.exe | N/A |
Creates new service(s)
Modifies Windows Firewall
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\netsh.exe | N/A |
Sets service image path in registry
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\feqvyilb\ImagePath = "C:\\Windows\\SysWOW64\\feqvyilb\\zxeazigx.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\svchost.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\feqvyilb\zxeazigx.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2572 set thread context of 2792 | N/A | C:\Windows\SysWOW64\feqvyilb\zxeazigx.exe | C:\Windows\SysWOW64\svchost.exe |
Launches sc.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\sc.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\sc.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\sc.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\f313185687c6097504477b7f37195cdf_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f313185687c6097504477b7f37195cdf_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\feqvyilb\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zxeazigx.exe" C:\Windows\SysWOW64\feqvyilb\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create feqvyilb binPath= "C:\Windows\SysWOW64\feqvyilb\zxeazigx.exe /d\"C:\Users\Admin\AppData\Local\Temp\f313185687c6097504477b7f37195cdf_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description feqvyilb "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start feqvyilb
C:\Windows\SysWOW64\feqvyilb\zxeazigx.exe
C:\Windows\SysWOW64\feqvyilb\zxeazigx.exe /d"C:\Users\Admin\AppData\Local\Temp\f313185687c6097504477b7f37195cdf_JaffaCakes118.exe"
C:\Windows\SysWOW64\svchost.exe
svchost.exe
C:\Windows\SysWOW64\netsh.exe
"C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | microsoft.com | udp |
| US | 20.112.250.133:80 | microsoft.com | tcp |
| US | 8.8.8.8:53 | microsoft.com | udp |
| US | 8.8.8.8:53 | microsoft-com.mail.protection.outlook.com | udp |
| US | 52.101.42.0:25 | microsoft-com.mail.protection.outlook.com | tcp |
| HK | 43.231.4.7:443 | tcp | |
| US | 8.8.8.8:53 | yahoo.com | udp |
| US | 8.8.8.8:53 | mta7.am0.yahoodns.net | udp |
| US | 67.195.228.106:25 | mta7.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | google.com | udp |
| US | 8.8.8.8:53 | smtp.google.com | udp |
| NL | 142.250.153.26:25 | smtp.google.com | tcp |
| HK | 43.231.4.7:443 | tcp | |
| US | 8.8.8.8:53 | mail.ru | udp |
| US | 8.8.8.8:53 | mxs.mail.ru | udp |
| RU | 217.69.139.150:25 | mxs.mail.ru | tcp |
| HK | 43.231.4.7:443 | tcp |
Files
memory/2364-0-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2364-1-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2364-2-0x0000000000220000-0x0000000000221000-memory.dmp
memory/2364-3-0x0000000000230000-0x0000000000231000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\zxeazigx.exe
| MD5 | 52330ee7ae5e569c24236ad0daa71c7f |
| SHA1 | 438c7684bf1af97ea19cc3b4ded9da1903408e62 |
| SHA256 | b957511d86196d10a785019f696ec10e8213285f209ada2eece45a3477a8ef45 |
| SHA512 | ddce6f442dc1f2cd5c0d7f29ccf44f70f7f733a91201de74c7a3ddd8e15e1d87766349e4db717ebd4bdbb12f718f51fe685c056e3a083cd715bee597d03cb9dc |
memory/2572-7-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2572-8-0x00000000001B0000-0x00000000001B1000-memory.dmp
memory/2792-13-0x00000000000C0000-0x00000000000D5000-memory.dmp
memory/2792-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2792-10-0x00000000000C0000-0x00000000000D5000-memory.dmp
memory/2572-16-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2792-17-0x00000000000C0000-0x00000000000D5000-memory.dmp
memory/2364-18-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2792-19-0x00000000000C0000-0x00000000000D5000-memory.dmp
memory/2792-20-0x00000000000C0000-0x00000000000D5000-memory.dmp
memory/2792-21-0x00000000000C0000-0x00000000000D5000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-16 08:18
Reported
2024-04-16 08:21
Platform
win10v2004-20240412-en
Max time kernel
149s
Max time network
151s
Command Line
Signatures
Tofsee
Creates new service(s)
Modifies Windows Firewall
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\netsh.exe | N/A |
Sets service image path in registry
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\gaykosmw\ImagePath = "C:\\Windows\\SysWOW64\\gaykosmw\\zlmgbxyv.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-259785868-298165991-4178590326-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\f313185687c6097504477b7f37195cdf_JaffaCakes118.exe | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\svchost.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\gaykosmw\zlmgbxyv.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2556 set thread context of 1956 | N/A | C:\Windows\SysWOW64\gaykosmw\zlmgbxyv.exe | C:\Windows\SysWOW64\svchost.exe |
Launches sc.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\sc.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\sc.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\sc.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\f313185687c6097504477b7f37195cdf_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f313185687c6097504477b7f37195cdf_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\gaykosmw\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\zlmgbxyv.exe" C:\Windows\SysWOW64\gaykosmw\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create gaykosmw binPath= "C:\Windows\SysWOW64\gaykosmw\zlmgbxyv.exe /d\"C:\Users\Admin\AppData\Local\Temp\f313185687c6097504477b7f37195cdf_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description gaykosmw "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start gaykosmw
C:\Windows\SysWOW64\gaykosmw\zlmgbxyv.exe
C:\Windows\SysWOW64\gaykosmw\zlmgbxyv.exe /d"C:\Users\Admin\AppData\Local\Temp\f313185687c6097504477b7f37195cdf_JaffaCakes118.exe"
C:\Windows\SysWOW64\svchost.exe
svchost.exe
C:\Windows\SysWOW64\netsh.exe
"C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 22.160.190.20.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 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| NL | 23.62.61.97:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 132.250.30.184.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 97.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | microsoft.com | udp |
| US | 20.112.250.133:80 | microsoft.com | tcp |
| US | 8.8.8.8:53 | microsoft.com | udp |
| US | 8.8.8.8:53 | microsoft-com.mail.protection.outlook.com | udp |
| US | 52.101.8.49:25 | microsoft-com.mail.protection.outlook.com | tcp |
| US | 8.8.8.8:53 | 133.250.112.20.in-addr.arpa | udp |
| HK | 43.231.4.7:443 | tcp | |
| US | 8.8.8.8:53 | yahoo.com | udp |
| US | 8.8.8.8:53 | mta7.am0.yahoodns.net | udp |
| US | 98.136.96.76:25 | mta7.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 50.23.12.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | google.com | udp |
| US | 8.8.8.8:53 | smtp.google.com | udp |
| NL | 142.250.153.27:25 | smtp.google.com | tcp |
| HK | 43.231.4.7:443 | tcp | |
| US | 8.8.8.8:53 | mail.ru | udp |
| US | 8.8.8.8:53 | mxs.mail.ru | udp |
| RU | 217.69.139.150:25 | mxs.mail.ru | tcp |
| US | 8.8.8.8:53 | 32.140.123.92.in-addr.arpa | udp |
| HK | 43.231.4.7:443 | tcp |
Files
memory/2804-0-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2804-1-0x0000000000400000-0x000000000041E000-memory.dmp
memory/2804-2-0x0000000002160000-0x0000000002161000-memory.dmp
memory/2804-3-0x0000000002170000-0x0000000002171000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\zlmgbxyv.exe
| MD5 | 049211cb5290a21689c5b5c873826c21 |
| SHA1 | 50da439f2dcd8a826bbbe453540a99df2397642a |
| SHA256 | 99d9d8bef4ab1b63c0e5793059c5780a5575b54c3deb13f05823b039fa233568 |
| SHA512 | 0711b0021cfa652bfde05f8f654747dd2240338aabc78a82dc8216912ebdd840f67a27fb43e6889b7d25a389dcb67234edc4ed5ac720a650b04df760ff7aab74 |
memory/2556-7-0x0000000000400000-0x000000000041E000-memory.dmp
memory/1956-9-0x0000000000760000-0x0000000000775000-memory.dmp
memory/2556-11-0x0000000000400000-0x000000000041E000-memory.dmp
memory/1956-13-0x0000000000760000-0x0000000000775000-memory.dmp
memory/2804-14-0x0000000000400000-0x000000000041E000-memory.dmp
memory/1956-15-0x0000000000760000-0x0000000000775000-memory.dmp
memory/1956-16-0x0000000000760000-0x0000000000775000-memory.dmp
memory/1956-17-0x0000000000760000-0x0000000000775000-memory.dmp