Analysis Overview
SHA256
d654d69144fc6ec2500c227daf77a0ed09424082093ad47571e4cf83739068dd
Threat Level: Known bad
The file f2210787bb2598f8739155f21507eb79_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Windows security bypass
Tofsee
Sets service image path in registry
Creates new service(s)
Modifies Windows Firewall
Executes dropped EXE
Deletes itself
Checks computer location settings
Suspicious use of SetThreadContext
Launches sc.exe
Program crash
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-15 23:03
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-15 23:03
Reported
2024-04-15 23:06
Platform
win10v2004-20240412-en
Max time kernel
149s
Max time network
155s
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\rnmncbk\ImagePath = "C:\\Windows\\SysWOW64\\rnmncbk\\hcrbgldb.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-776854024-226333264-2052258302-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\f2210787bb2598f8739155f21507eb79_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\rnmncbk\hcrbgldb.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1048 set thread context of 4100 | N/A | C:\Windows\SysWOW64\rnmncbk\hcrbgldb.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\f2210787bb2598f8739155f21507eb79_JaffaCakes118.exe |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\rnmncbk\hcrbgldb.exe |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\f2210787bb2598f8739155f21507eb79_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f2210787bb2598f8739155f21507eb79_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rnmncbk\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\hcrbgldb.exe" C:\Windows\SysWOW64\rnmncbk\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create rnmncbk binPath= "C:\Windows\SysWOW64\rnmncbk\hcrbgldb.exe /d\"C:\Users\Admin\AppData\Local\Temp\f2210787bb2598f8739155f21507eb79_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description rnmncbk "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start rnmncbk
C:\Windows\SysWOW64\rnmncbk\hcrbgldb.exe
C:\Windows\SysWOW64\rnmncbk\hcrbgldb.exe /d"C:\Users\Admin\AppData\Local\Temp\f2210787bb2598f8739155f21507eb79_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 472 -p 2448 -ip 2448
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2448 -s 1172
C:\Windows\SysWOW64\svchost.exe
svchost.exe
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 1048 -ip 1048
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1048 -s 520
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 | 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 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 21.114.53.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 9.228.82.20.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 | 67.195.204.73:25 | mta5.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | 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 | 142.251.18.26:25 | smtp.google.com | tcp |
| US | 8.8.8.8:53 | defeatwax.ru | 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 | 48.229.111.52.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 |
| US | 8.8.8.8:53 | 28.173.189.20.in-addr.arpa | udp |
Files
memory/2448-1-0x0000000000650000-0x0000000000750000-memory.dmp
memory/2448-2-0x0000000000610000-0x0000000000623000-memory.dmp
memory/2448-3-0x0000000000400000-0x000000000046D000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\hcrbgldb.exe
| MD5 | eaf6ddd6f0761ce0a36be890d0d39688 |
| SHA1 | b32ccd385f43db0a73e78480fe845592f47691fb |
| SHA256 | d6f464cf2029f304020de9aef0dc894a6ac51b5a01cb40282bb5cf27147f71f9 |
| SHA512 | fbe35c896d93b9a4c0565caaa26b42f7ac3d5510b679f67d88b7465c318eaaa24ec0cb4b23a4719ec4acfb364285ebe851085198cb7b2c9360f2973ed575ae9d |
memory/2448-8-0x0000000000400000-0x000000000046D000-memory.dmp
memory/2448-9-0x0000000000610000-0x0000000000623000-memory.dmp
memory/1048-10-0x00000000005F0000-0x00000000006F0000-memory.dmp
memory/1048-11-0x0000000000400000-0x000000000046D000-memory.dmp
memory/4100-12-0x0000000000EB0000-0x0000000000EC5000-memory.dmp
memory/4100-16-0x0000000000EB0000-0x0000000000EC5000-memory.dmp
memory/1048-17-0x0000000000400000-0x000000000046D000-memory.dmp
memory/4100-18-0x0000000000EB0000-0x0000000000EC5000-memory.dmp
memory/4100-19-0x0000000000EB0000-0x0000000000EC5000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-15 23:03
Reported
2024-04-15 23:05
Platform
win7-20240221-en
Max time kernel
149s
Max time network
152s
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\zduoloar = "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\zduoloar\ImagePath = "C:\\Windows\\SysWOW64\\zduoloar\\upeotyqo.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\zduoloar\upeotyqo.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2312 set thread context of 2360 | N/A | C:\Windows\SysWOW64\zduoloar\upeotyqo.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\f2210787bb2598f8739155f21507eb79_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f2210787bb2598f8739155f21507eb79_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zduoloar\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\upeotyqo.exe" C:\Windows\SysWOW64\zduoloar\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create zduoloar binPath= "C:\Windows\SysWOW64\zduoloar\upeotyqo.exe /d\"C:\Users\Admin\AppData\Local\Temp\f2210787bb2598f8739155f21507eb79_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description zduoloar "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start zduoloar
C:\Windows\SysWOW64\zduoloar\upeotyqo.exe
C:\Windows\SysWOW64\zduoloar\upeotyqo.exe /d"C:\Users\Admin\AppData\Local\Temp\f2210787bb2598f8739155f21507eb79_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 | 52.101.8.49:25 | 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 | mta6.am0.yahoodns.net | udp |
| US | 67.195.204.72:25 | mta6.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | google.com | udp |
| US | 8.8.8.8:53 | smtp.google.com | udp |
| NL | 142.251.18.26:25 | smtp.google.com | tcp |
| US | 8.8.8.8:53 | mail.ru | udp |
| US | 8.8.8.8:53 | mxs.mail.ru | udp |
| RU | 94.100.180.31:25 | mxs.mail.ru | tcp |
| US | 8.8.8.8:53 | refabyd.info | udp |
Files
memory/928-1-0x0000000000530000-0x0000000000630000-memory.dmp
memory/928-2-0x0000000000220000-0x0000000000233000-memory.dmp
memory/928-3-0x0000000000400000-0x000000000046D000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\upeotyqo.exe
| MD5 | 4869fd22abe1fa9e7bcc8ecabeea0d10 |
| SHA1 | 8517b9afde70199c6faa27f6c7a95a08a73075d5 |
| SHA256 | 36b79ecacdc66a7dd1a1e8cfd8f6d81209ea23758f6c2c9fca776be56f7f6bab |
| SHA512 | cd3bd89c76e92235f54bfb97fbfd59703f9057ca83b1d5cfe91919d89b19db75f99fcd57ccc86b4f18826683c1a5bfc36884b6fbe3afef43353df48310148d87 |
memory/928-8-0x0000000000400000-0x000000000046D000-memory.dmp
memory/928-9-0x0000000000220000-0x0000000000233000-memory.dmp
memory/2312-10-0x0000000000290000-0x0000000000390000-memory.dmp
memory/2312-11-0x0000000000400000-0x000000000046D000-memory.dmp
memory/2360-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2360-12-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2360-15-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2312-17-0x0000000000400000-0x000000000046D000-memory.dmp
memory/2360-19-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2360-20-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2360-21-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2360-22-0x0000000000080000-0x0000000000095000-memory.dmp