Analysis Overview
SHA256
bbc6f4150ca247ebe2375c8c2041830d73a2c3c09df021f2c69c5ba16b4912b8
Threat Level: Known bad
The file f31cde8973df6ea521b90fdf8227374e_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Windows security bypass
Tofsee
Creates new service(s)
Sets service image path in registry
Modifies Windows Firewall
Checks computer location settings
Executes dropped EXE
Deletes itself
Suspicious use of SetThreadContext
Launches sc.exe
Unsigned PE
Enumerates physical storage devices
Program crash
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-16 08:41
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-16 08:41
Reported
2024-04-16 08:43
Platform
win7-20240221-en
Max time kernel
148s
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\ofbanuwk = "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\ofbanuwk\ImagePath = "C:\\Windows\\SysWOW64\\ofbanuwk\\qkmpihh.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\ofbanuwk\qkmpihh.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2528 set thread context of 2392 | N/A | C:\Windows\SysWOW64\ofbanuwk\qkmpihh.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\f31cde8973df6ea521b90fdf8227374e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f31cde8973df6ea521b90fdf8227374e_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\ofbanuwk\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\qkmpihh.exe" C:\Windows\SysWOW64\ofbanuwk\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create ofbanuwk binPath= "C:\Windows\SysWOW64\ofbanuwk\qkmpihh.exe /d\"C:\Users\Admin\AppData\Local\Temp\f31cde8973df6ea521b90fdf8227374e_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description ofbanuwk "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start ofbanuwk
C:\Windows\SysWOW64\ofbanuwk\qkmpihh.exe
C:\Windows\SysWOW64\ofbanuwk\qkmpihh.exe /d"C:\Users\Admin\AppData\Local\Temp\f31cde8973df6ea521b90fdf8227374e_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 | 52.101.40.26:25 | microsoft-com.mail.protection.outlook.com | tcp |
| HK | 43.231.4.6:443 | tcp | |
| US | 8.8.8.8:53 | yahoo.com | udp |
| US | 8.8.8.8:53 | mta6.am0.yahoodns.net | udp |
| US | 67.195.204.77:25 | 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 | 173.194.69.26:25 | smtp.google.com | tcp |
| HK | 43.231.4.6:443 | 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 |
| HK | 43.231.4.6:443 | tcp |
Files
memory/1936-1-0x0000000000CD0000-0x0000000000DD0000-memory.dmp
memory/1936-2-0x0000000000220000-0x0000000000233000-memory.dmp
memory/1936-4-0x0000000000400000-0x0000000000C13000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\qkmpihh.exe
| MD5 | eba9e85ca7583e1867b73a03262aee00 |
| SHA1 | c0beb04e81fc46956d773db5eb04e244e774e2fc |
| SHA256 | eb8c5decb0eafbe4f148008a65cba40c59c1d191fd6f2050cd6056a0f10ae8b7 |
| SHA512 | 963bcd96ad2710a9cec76745415af1566df5a3dfacc9027f2a5adae11ed291e2de581f6efa582ec9696db5976c5a572f3ca5a41ab6abcbd24cf53a07c4969b18 |
memory/1936-7-0x0000000000400000-0x0000000000C13000-memory.dmp
memory/2528-9-0x0000000000CF0000-0x0000000000DF0000-memory.dmp
memory/2392-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2392-10-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2528-12-0x0000000000400000-0x0000000000C13000-memory.dmp
memory/2392-14-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2528-15-0x0000000000400000-0x0000000000C13000-memory.dmp
memory/2392-18-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2392-19-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2392-20-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2392-21-0x0000000000080000-0x0000000000095000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-16 08:41
Reported
2024-04-16 08:43
Platform
win10v2004-20240412-en
Max time kernel
149s
Max time network
150s
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\larrmayy\ImagePath = "C:\\Windows\\SysWOW64\\larrmayy\\eyadwvv.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\f31cde8973df6ea521b90fdf8227374e_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\larrmayy\eyadwvv.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2364 set thread context of 2756 | N/A | C:\Windows\SysWOW64\larrmayy\eyadwvv.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\f31cde8973df6ea521b90fdf8227374e_JaffaCakes118.exe |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Windows\SysWOW64\larrmayy\eyadwvv.exe |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\f31cde8973df6ea521b90fdf8227374e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f31cde8973df6ea521b90fdf8227374e_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\larrmayy\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\eyadwvv.exe" C:\Windows\SysWOW64\larrmayy\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create larrmayy binPath= "C:\Windows\SysWOW64\larrmayy\eyadwvv.exe /d\"C:\Users\Admin\AppData\Local\Temp\f31cde8973df6ea521b90fdf8227374e_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description larrmayy "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start larrmayy
C:\Windows\SysWOW64\larrmayy\eyadwvv.exe
C:\Windows\SysWOW64\larrmayy\eyadwvv.exe /d"C:\Users\Admin\AppData\Local\Temp\f31cde8973df6ea521b90fdf8227374e_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 456 -p 3756 -ip 3756
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3756 -s 1044
C:\Windows\SysWOW64\svchost.exe
svchost.exe
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2364 -ip 2364
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2364 -s 520
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 138.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 249.197.17.2.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 | 241.154.82.20.in-addr.arpa | udp |
| NL | 23.62.61.90:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 132.250.30.184.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 90.61.62.23.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 | 43.231.4.6:443 | 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 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | google.com | udp |
| US | 8.8.8.8:53 | smtp.google.com | udp |
| NL | 173.194.69.26:25 | smtp.google.com | tcp |
| HK | 43.231.4.6:443 | 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 | 240.197.17.2.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 29.243.111.52.in-addr.arpa | udp |
| HK | 43.231.4.6:443 | tcp |
Files
memory/3756-1-0x0000000000EA0000-0x0000000000FA0000-memory.dmp
memory/3756-2-0x0000000002950000-0x0000000002963000-memory.dmp
memory/3756-4-0x0000000000400000-0x0000000000C13000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\eyadwvv.exe
| MD5 | 4bbb86d3b5d359dfef2af396794aed42 |
| SHA1 | 07c478d4871b680c12f884033db75fd87f325575 |
| SHA256 | 118213ad96f0eccf55e3cd69bd4a2a7710e38c12293eb7057f1a7a9a137c97b3 |
| SHA512 | dff593fd6c21210ee86c79a40b855799ba770cc61f4e07c7dbe983c477c693f8baaea5a8c687d2f8529dc57f8790e607b89976f396528af0d4a78b32f258fda0 |
memory/3756-7-0x0000000000400000-0x0000000000C13000-memory.dmp
memory/3756-8-0x0000000002950000-0x0000000002963000-memory.dmp
memory/2364-10-0x0000000000F80000-0x0000000001080000-memory.dmp
memory/2364-11-0x0000000000400000-0x0000000000C13000-memory.dmp
memory/2756-12-0x0000000000920000-0x0000000000935000-memory.dmp
memory/2756-16-0x0000000000920000-0x0000000000935000-memory.dmp
memory/2364-17-0x0000000000400000-0x0000000000C13000-memory.dmp
memory/2756-18-0x0000000000920000-0x0000000000935000-memory.dmp
memory/2756-19-0x0000000000920000-0x0000000000935000-memory.dmp