Analysis Overview
SHA256
c89d2e5ffe20c5e936a9df89dbe29d684442bdb0ec0401fdf7e34e25963866fc
Threat Level: Known bad
The file f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Windows security bypass
Tofsee
Modifies Windows Firewall
Sets service image path in registry
Creates new service(s)
Deletes itself
Executes dropped EXE
Checks computer location settings
Suspicious use of SetThreadContext
Launches sc.exe
Enumerates physical storage devices
Unsigned PE
Program crash
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-16 07:36
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-16 07:35
Reported
2024-04-16 07:38
Platform
win7-20240221-en
Max time kernel
148s
Max time network
147s
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\kibygykc = "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\kibygykc\ImagePath = "C:\\Windows\\SysWOW64\\kibygykc\\revewjlf.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\kibygykc\revewjlf.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2688 set thread context of 1668 | N/A | C:\Windows\SysWOW64\kibygykc\revewjlf.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\f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\kibygykc\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\revewjlf.exe" C:\Windows\SysWOW64\kibygykc\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create kibygykc binPath= "C:\Windows\SysWOW64\kibygykc\revewjlf.exe /d\"C:\Users\Admin\AppData\Local\Temp\f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description kibygykc "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start kibygykc
C:\Windows\SysWOW64\kibygykc\revewjlf.exe
C:\Windows\SysWOW64\kibygykc\revewjlf.exe /d"C:\Users\Admin\AppData\Local\Temp\f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.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
C:\Windows\SysWOW64\svchost.exe
svchost.exe
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 | 52.101.11.0:25 | microsoft-com.mail.protection.outlook.com | tcp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | yahoo.com | udp |
| US | 8.8.8.8:53 | mta5.am0.yahoodns.net | udp |
| US | 67.195.228.109:25 | mta5.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | google.com | udp |
| US | 8.8.8.8:53 | smtp.google.com | udp |
| NL | 142.250.145.26:25 | smtp.google.com | 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 | refabyd.info | udp |
Files
memory/2340-1-0x0000000002D80000-0x0000000002E80000-memory.dmp
memory/2340-2-0x0000000000220000-0x0000000000233000-memory.dmp
memory/2340-4-0x0000000000400000-0x0000000002C68000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\revewjlf.exe
| MD5 | b122a6cddd7b94fdeb66ea811f4fffe6 |
| SHA1 | d2f8233fea2e67465916f8cf8cd17297b03c6158 |
| SHA256 | e03b71c0d5ba887422fdcd0eccd8fd2e5365b28d43ad3fbb04a395e745900c52 |
| SHA512 | d66ebba3c59b1540676f3daad74aad76617baec46baa2a1e9f536b604a0bb6e9343877ea7dd8e0352c4595914a94136004597c167c14cbf5196bec8862535d07 |
memory/2340-9-0x0000000000220000-0x0000000000233000-memory.dmp
memory/2340-8-0x0000000000400000-0x0000000002C68000-memory.dmp
memory/2688-10-0x0000000002D00000-0x0000000002E00000-memory.dmp
memory/1668-11-0x00000000000C0000-0x00000000000D5000-memory.dmp
memory/1668-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2688-14-0x0000000000400000-0x0000000002C68000-memory.dmp
memory/1668-15-0x00000000000C0000-0x00000000000D5000-memory.dmp
memory/1668-20-0x00000000000C0000-0x00000000000D5000-memory.dmp
memory/2688-18-0x0000000000400000-0x0000000002C68000-memory.dmp
memory/1668-21-0x00000000000C0000-0x00000000000D5000-memory.dmp
memory/1668-22-0x00000000000C0000-0x00000000000D5000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-16 07:35
Reported
2024-04-16 07:38
Platform
win10v2004-20240412-en
Max time kernel
147s
Max time network
149s
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\owtyvebl\ImagePath = "C:\\Windows\\SysWOW64\\owtyvebl\\xkbkcprl.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-4084619521-2220719027-1909462854-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\f3015e7fa8a419f7f1110881d4a15abf_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\owtyvebl\xkbkcprl.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3344 set thread context of 4328 | N/A | C:\Windows\SysWOW64\owtyvebl\xkbkcprl.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
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\owtyvebl\xkbkcprl.exe |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\owtyvebl\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\xkbkcprl.exe" C:\Windows\SysWOW64\owtyvebl\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create owtyvebl binPath= "C:\Windows\SysWOW64\owtyvebl\xkbkcprl.exe /d\"C:\Users\Admin\AppData\Local\Temp\f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description owtyvebl "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start owtyvebl
C:\Windows\SysWOW64\owtyvebl\xkbkcprl.exe
C:\Windows\SysWOW64\owtyvebl\xkbkcprl.exe /d"C:\Users\Admin\AppData\Local\Temp\f3015e7fa8a419f7f1110881d4a15abf_JaffaCakes118.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
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 2624 -ip 2624
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2624 -s 888
C:\Windows\SysWOW64\svchost.exe
svchost.exe
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3344 -ip 3344
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3344 -s 516
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 74.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.154.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 132.250.30.184.in-addr.arpa | udp |
| NL | 23.62.61.115:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 115.61.62.23.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 | 104.47.53.36:25 | microsoft-com.mail.protection.outlook.com | tcp |
| US | 8.8.8.8:53 | 133.250.112.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | yahoo.com | udp |
| US | 8.8.8.8:53 | mta5.am0.yahoodns.net | udp |
| US | 98.136.96.91:25 | mta5.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 81.139.73.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | google.com | udp |
| US | 8.8.8.8:53 | smtp.google.com | udp |
| NL | 142.250.145.26:25 | smtp.google.com | tcp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | 249.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | refabyd.info | udp |
| 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 | refabyd.info | udp |
| US | 8.8.8.8:53 | refabyd.info | udp |
| US | 8.8.8.8:53 | 29.243.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | refabyd.info | udp |
| US | 8.8.8.8:53 | refabyd.info | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
Files
memory/2624-1-0x0000000002CD0000-0x0000000002DD0000-memory.dmp
memory/2624-2-0x00000000049B0000-0x00000000049C3000-memory.dmp
memory/2624-4-0x0000000000400000-0x0000000002C68000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\xkbkcprl.exe
| MD5 | 6b9cce3f1a6c0796a7facb59ab3eee8d |
| SHA1 | 8d623a773e1fb4014bfef487093f2ce0d1a35ea4 |
| SHA256 | 29a0597affa64c55121f86c7fa43744c1f86bdb73b042de0fca61246a39a9910 |
| SHA512 | def39af4bbad7f0cb40ab0893b33efe6f5714c33456ca593318690f697c0775607a2d5e23330b8ae48953f57aca50da7af4d54ed67b679d462adbe1dcf6104c5 |
memory/2624-8-0x0000000000400000-0x0000000002C68000-memory.dmp
memory/2624-9-0x00000000049B0000-0x00000000049C3000-memory.dmp
memory/4328-10-0x00000000003E0000-0x00000000003F5000-memory.dmp
memory/3344-12-0x0000000003010000-0x0000000003110000-memory.dmp
memory/4328-14-0x00000000003E0000-0x00000000003F5000-memory.dmp
memory/4328-16-0x00000000003E0000-0x00000000003F5000-memory.dmp
memory/3344-17-0x0000000000400000-0x0000000002C68000-memory.dmp
memory/4328-18-0x00000000003E0000-0x00000000003F5000-memory.dmp
memory/3344-19-0x0000000000400000-0x0000000002C68000-memory.dmp
memory/4328-20-0x00000000003E0000-0x00000000003F5000-memory.dmp