Analysis Overview
SHA256
87140618703529cf84c6e119ecde2b6faeabba17cd73a817ee17856b2692bb70
Threat Level: Known bad
The file f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Tofsee
Modifies Windows Firewall
Sets service image path in registry
Creates new service(s)
Executes dropped EXE
Checks computer location settings
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
2024-04-15 17:55
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-15 17:55
Reported
2024-04-15 17:57
Platform
win7-20240221-en
Max time kernel
147s
Max time network
121s
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 |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\xtcdfzlq\lypyqdfz.exe | N/A |
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\f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\xtcdfzlq\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\lypyqdfz.exe" C:\Windows\SysWOW64\xtcdfzlq\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create xtcdfzlq binPath= "C:\Windows\SysWOW64\xtcdfzlq\lypyqdfz.exe /d\"C:\Users\Admin\AppData\Local\Temp\f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description xtcdfzlq "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start xtcdfzlq
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\xtcdfzlq\lypyqdfz.exe
C:\Windows\SysWOW64\xtcdfzlq\lypyqdfz.exe /d"C:\Users\Admin\AppData\Local\Temp\f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exe"
C:\Windows\SysWOW64\svchost.exe
svchost.exe
Network
Files
memory/1664-1-0x0000000000250000-0x0000000000350000-memory.dmp
memory/1664-2-0x00000000003C0000-0x00000000003D3000-memory.dmp
memory/1664-4-0x0000000000400000-0x00000000023AD000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\lypyqdfz.exe
| MD5 | 702a8c82b7c7bb11b56695e1059ecc46 |
| SHA1 | d662ad72e5a93d334d057291d06d12c8fb819199 |
| SHA256 | 6c3e68d8f3952daa0093b672b61ddb809756324127d40243fc25a9d82099b13c |
| SHA512 | 83378d61fdca534d9aa5a895be181f39e8a5c79c911edb18663e7dfeb4281f32f3b3c361a9d3ad00013187abf019255737323cf412982b1d3b5827f5ff3ccd76 |
memory/1664-6-0x0000000000400000-0x00000000023AD000-memory.dmp
memory/1664-9-0x00000000003C0000-0x00000000003D3000-memory.dmp
memory/2536-10-0x0000000002530000-0x0000000002630000-memory.dmp
memory/2364-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2364-11-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2536-14-0x0000000000400000-0x00000000023AD000-memory.dmp
memory/2536-17-0x0000000002530000-0x0000000002630000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-15 17:55
Reported
2024-04-15 17:57
Platform
win10v2004-20240226-en
Max time kernel
153s
Max time network
157s
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\rpdydnxe\ImagePath = "C:\\Windows\\SysWOW64\\rpdydnxe\\vvobnkjl.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\f1a4db415a4dd63a80f0b8cc7a2d2362_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\rpdydnxe\vvobnkjl.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2100 set thread context of 3744 | N/A | C:\Windows\SysWOW64\rpdydnxe\vvobnkjl.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:\Windows\SysWOW64\rpdydnxe\vvobnkjl.exe |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\rpdydnxe\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vvobnkjl.exe" C:\Windows\SysWOW64\rpdydnxe\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create rpdydnxe binPath= "C:\Windows\SysWOW64\rpdydnxe\vvobnkjl.exe /d\"C:\Users\Admin\AppData\Local\Temp\f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description rpdydnxe "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start rpdydnxe
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\rpdydnxe\vvobnkjl.exe
C:\Windows\SysWOW64\rpdydnxe\vvobnkjl.exe /d"C:\Users\Admin\AppData\Local\Temp\f1a4db415a4dd63a80f0b8cc7a2d2362_JaffaCakes118.exe"
C:\Windows\SysWOW64\svchost.exe
svchost.exe
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2100 -ip 2100
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2100 -s 512
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 --mojo-platform-channel-handle=1424 --field-trial-handle=2180,i,12780723798465539942,12010519452607841069,262144 --variations-seed-version /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.129.101.95.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 |
| US | 8.8.8.8:53 | 138.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | 98.58.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 149.220.183.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.142.211.20.in-addr.arpa | 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 | 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 | 173.194.79.27:25 | smtp.google.com | tcp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | 0.204.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | refabyd.info | udp |
| US | 8.8.8.8:53 | 23.236.111.52.in-addr.arpa | 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 | 91.90.14.23.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 | 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 | chromewebstore.googleapis.com | udp |
| GB | 142.250.187.202:443 | chromewebstore.googleapis.com | tcp |
| US | 8.8.8.8:53 | 202.187.250.142.in-addr.arpa | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
Files
memory/4504-1-0x00000000023F0000-0x00000000024F0000-memory.dmp
memory/4504-2-0x00000000040F0000-0x0000000004103000-memory.dmp
memory/4504-4-0x0000000000400000-0x00000000023AD000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\vvobnkjl.exe
| MD5 | 82e20f8d817f417fa627bac370bb73e2 |
| SHA1 | a9780f4880e6fa06b7c5fddf900b9549163b81d9 |
| SHA256 | 1e7636012b67b7dfdaf2637d1b607caf2dd2306ee02d6ce09bd20911712c80a1 |
| SHA512 | 0a33d53be9723edaf1f71a7e29bdd4d67fd71a0dd1ad5b002fbba1a10e7196033db4ca29b7ac7377c97af189f3ac63b33b45635a0ee137372f789b98f06ed85f |
memory/4504-6-0x0000000000400000-0x00000000023AD000-memory.dmp
memory/4504-7-0x0000000000400000-0x00000000023AD000-memory.dmp
memory/4504-8-0x00000000040F0000-0x0000000004103000-memory.dmp
memory/2100-11-0x0000000002510000-0x0000000002610000-memory.dmp
memory/3744-12-0x0000000000E70000-0x0000000000E85000-memory.dmp
memory/3744-15-0x0000000000E70000-0x0000000000E85000-memory.dmp
memory/2100-16-0x0000000000400000-0x00000000023AD000-memory.dmp
memory/3744-17-0x0000000000E70000-0x0000000000E85000-memory.dmp
memory/3744-18-0x0000000000E70000-0x0000000000E85000-memory.dmp
memory/2100-19-0x0000000000400000-0x00000000023AD000-memory.dmp
memory/3744-20-0x0000000000E70000-0x0000000000E85000-memory.dmp