Analysis Overview
SHA256
32286087d4e5a88e15e2d34114b10047826640627628d7b269d37eef35585db7
Threat Level: Known bad
The file f2c2dfad2a7c617f933121023f9615a0_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
Deletes itself
Executes dropped EXE
Checks computer location settings
Suspicious use of SetThreadContext
Launches sc.exe
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-04-16 05:12
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2024-04-16 05:12
Reported
2024-04-16 05:15
Platform
win10v2004-20240226-en
Max time kernel
150s
Max time network
156s
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\wwjxkyu\ImagePath = "C:\\Windows\\SysWOW64\\wwjxkyu\\gidjcpz.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\f2c2dfad2a7c617f933121023f9615a0_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\wwjxkyu\gidjcpz.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1152 set thread context of 5268 | N/A | C:\Windows\SysWOW64\wwjxkyu\gidjcpz.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\f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\wwjxkyu\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\gidjcpz.exe" C:\Windows\SysWOW64\wwjxkyu\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create wwjxkyu binPath= "C:\Windows\SysWOW64\wwjxkyu\gidjcpz.exe /d\"C:\Users\Admin\AppData\Local\Temp\f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description wwjxkyu "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start wwjxkyu
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\wwjxkyu\gidjcpz.exe
C:\Windows\SysWOW64\wwjxkyu\gidjcpz.exe /d"C:\Users\Admin\AppData\Local\Temp\f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe"
C:\Windows\SysWOW64\svchost.exe
svchost.exe
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=3996 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /prefetch:8
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 82.90.14.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 138.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 104.219.191.52.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 | 104.47.54.36:25 | 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 | 157.123.68.40.in-addr.arpa | udp |
| GB | 142.250.187.202:443 | tcp | |
| US | 8.8.8.8:53 | 56.126.166.20.in-addr.arpa | udp |
| HK | 43.231.4.7:443 | tcp | |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | yahoo.com | udp |
| US | 8.8.8.8:53 | mta6.am0.yahoodns.net | udp |
| US | 67.195.228.111:25 | 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 | 142.251.31.27:25 | smtp.google.com | tcp |
| HK | 43.231.4.7:443 | tcp | |
| US | 8.8.8.8:53 | 14.227.111.52.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 | 91.90.14.23.in-addr.arpa | udp |
| HK | 43.231.4.7:443 | tcp | |
| US | 8.8.8.8:53 | 28.73.42.20.in-addr.arpa | udp |
Files
memory/656-1-0x0000000003900000-0x0000000003A00000-memory.dmp
memory/656-2-0x0000000005410000-0x0000000005423000-memory.dmp
memory/656-4-0x0000000000400000-0x00000000036CD000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\gidjcpz.exe
| MD5 | 9817e67f0fa3deb3f25b3a36f43567ae |
| SHA1 | f437d6a202b46d0f8b16d99c78f12ebccb516f8e |
| SHA256 | c50c5344f3ca8be4267882a0e4c7de1edcdb93e7dd538a980e186d5aaaaec86a |
| SHA512 | b0cac5923daada574ef6052575a9c2f3c679b0e1ed4f005de4755891d07334e2e411d010bb5d082b94ad391634c92a6f46ade9bade6efb2051dbeede11608412 |
memory/656-6-0x0000000000400000-0x00000000036CD000-memory.dmp
memory/656-8-0x0000000005410000-0x0000000005423000-memory.dmp
memory/1152-10-0x0000000003950000-0x0000000003A50000-memory.dmp
memory/5268-11-0x0000000000440000-0x0000000000455000-memory.dmp
memory/5268-14-0x0000000000440000-0x0000000000455000-memory.dmp
memory/1152-16-0x0000000000400000-0x00000000036CD000-memory.dmp
memory/5268-17-0x0000000000440000-0x0000000000455000-memory.dmp
memory/1152-15-0x0000000000400000-0x00000000036CD000-memory.dmp
memory/5268-18-0x0000000000440000-0x0000000000455000-memory.dmp
memory/5268-19-0x0000000000440000-0x0000000000455000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2024-04-16 05:12
Reported
2024-04-16 05:15
Platform
win7-20240221-en
Max time kernel
145s
Max time network
141s
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\guhunvc = "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\guhunvc\ImagePath = "C:\\Windows\\SysWOW64\\guhunvc\\myxlwgoi.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\guhunvc\myxlwgoi.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2944 set thread context of 2544 | N/A | C:\Windows\SysWOW64\guhunvc\myxlwgoi.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\f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\guhunvc\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\myxlwgoi.exe" C:\Windows\SysWOW64\guhunvc\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create guhunvc binPath= "C:\Windows\SysWOW64\guhunvc\myxlwgoi.exe /d\"C:\Users\Admin\AppData\Local\Temp\f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description guhunvc "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start guhunvc
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\guhunvc\myxlwgoi.exe
C:\Windows\SysWOW64\guhunvc\myxlwgoi.exe /d"C:\Users\Admin\AppData\Local\Temp\f2c2dfad2a7c617f933121023f9615a0_JaffaCakes118.exe"
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 | 43.231.4.7:443 | tcp | |
| US | 8.8.8.8:53 | yahoo.com | udp |
| US | 8.8.8.8:53 | mta6.am0.yahoodns.net | udp |
| US | 67.195.228.111:25 | 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 | 142.251.31.26:25 | 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/1444-1-0x0000000003860000-0x0000000003960000-memory.dmp
memory/1444-2-0x0000000000220000-0x0000000000233000-memory.dmp
memory/1444-4-0x0000000000400000-0x00000000036CD000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\myxlwgoi.exe
| MD5 | ff91d2da2b943d496422957aff8f56c7 |
| SHA1 | 87d6c6c5c04a8a223ce8c20759d265173e5c3dbb |
| SHA256 | 5ff8b09c0012c205e084ce72b9acb688875484f8e2ec7b6ecae3e872d8fe6fdf |
| SHA512 | 1290a7e2e1491666e7b1c84b0c09a0316d0ff8928ced4b2882105360b75ff34791ff3d6a0dc408460cd7d78e1818fcd93fd39d34b9a96147b23428b7b3ec3419 |
memory/1444-6-0x0000000000400000-0x00000000036CD000-memory.dmp
memory/2944-9-0x0000000000270000-0x0000000000370000-memory.dmp
memory/2544-10-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2544-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2544-13-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2944-15-0x0000000000400000-0x00000000036CD000-memory.dmp
memory/2544-18-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2944-17-0x0000000000400000-0x00000000036CD000-memory.dmp
memory/2544-19-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2544-20-0x0000000000080000-0x0000000000095000-memory.dmp