Analysis Overview
SHA256
253c088b88328696a1b70dd570fb0372c912a7b7a5eeb703d2cc7d29b2cdbf32
Threat Level: Known bad
The file 3f09fbc368f17edb61193d5db5ee0749_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Modifies WinLogon for persistence
Adds policy Run key to start application
Disables RegEdit via registry modification
Disables Task Manager via registry modification
Deletes itself
UPX packed file
Adds Run key to start application
Unsigned PE
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Modifies Internet Explorer settings
Suspicious behavior: MapViewOfSection
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-13 10:29
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-13 10:29
Reported
2024-05-13 10:31
Platform
win7-20240221-en
Max time kernel
148s
Max time network
118s
Command Line
Signatures
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\SHELL = "explorer.exe, \"C:\\Users\\Admin\\AppData\\Local\\KB7756356\\KB7756356.exe\"" | C:\Windows\SysWOW64\svchost.exe | N/A |
Adds policy Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\KB7756356 = "\"C:\\Users\\Admin\\AppData\\Local\\KB7756356\\KB7756356.exe\"" | C:\Windows\SysWOW64\svchost.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run | C:\Windows\SysWOW64\svchost.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\KB7756356 = "\"C:\\Users\\Admin\\AppData\\Local\\KB7756356\\KB7756356.exe\"" | C:\Windows\SysWOW64\svchost.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run | C:\Windows\SysWOW64\svchost.exe | N/A |
Disables RegEdit via registry modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" | C:\Windows\SysWOW64\svchost.exe | N/A |
Disables Task Manager via registry modification
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\svchost.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
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Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\KB7756356 = "\"C:\\Users\\Admin\\AppData\\Local\\KB7756356\\KB7756356.exe\"" | C:\Windows\SysWOW64\svchost.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\KB7756356 = "\"C:\\Users\\Admin\\AppData\\Local\\KB7756356\\KB7756356.exe\"" | C:\Windows\SysWOW64\svchost.exe | N/A |
Modifies Internet Explorer settings
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\Main\Display Inline Images = "yes" | C:\Windows\SysWOW64\svchost.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\Main\Enable AutoImageResize = "yes" | C:\Windows\SysWOW64\svchost.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\Main\Play_Animations = "yes" | C:\Windows\SysWOW64\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Internet Explorer\Main\UseThemes = "1" | C:\Windows\SysWOW64\svchost.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3f09fbc368f17edb61193d5db5ee0749_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3f09fbc368f17edb61193d5db5ee0749_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\svchost.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\3f09fbc368f17edb61193d5db5ee0749_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3f09fbc368f17edb61193d5db5ee0749_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\3f09fbc368f17edb61193d5db5ee0749_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3f09fbc368f17edb61193d5db5ee0749_JaffaCakes118.exe"
C:\Windows\SysWOW64\svchost.exe
"svchost.exe" path<<c:\users\admin\appdata\local\temp\3f09fbc368f17edb61193d5db5ee0749_jaffacakes118.exe>>path
C:\Windows\SysWOW64\svchost.exe
"svchost.exe" path<<c:\users\admin\appdata\local\temp\3f09fbc368f17edb61193d5db5ee0749_jaffacakes118.exe>>path
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | sectempus.biz | udp |
| US | 8.8.8.8:53 | zipwog.ru | udp |
Files
memory/1996-0-0x00000000001B0000-0x00000000001B1000-memory.dmp
memory/2832-2-0x0000000000400000-0x000000000041D000-memory.dmp
memory/1996-1-0x0000000000400000-0x0000000000417000-memory.dmp
memory/2832-3-0x0000000000400000-0x000000000041D000-memory.dmp
memory/2832-4-0x0000000000400000-0x000000000041D000-memory.dmp
memory/2832-5-0x0000000000400000-0x000000000041D000-memory.dmp
memory/2832-6-0x0000000000400000-0x000000000041D000-memory.dmp
memory/2832-10-0x0000000000400000-0x000000000041D000-memory.dmp
memory/2912-9-0x0000000000B20000-0x0000000000B37000-memory.dmp
memory/2912-11-0x0000000000B20000-0x0000000000B37000-memory.dmp
memory/2912-12-0x0000000000B20000-0x0000000000B37000-memory.dmp
memory/2912-15-0x0000000000B20000-0x0000000000B37000-memory.dmp
memory/2084-16-0x0000000000B20000-0x0000000000B3D000-memory.dmp
memory/2084-20-0x0000000000B20000-0x0000000000B3D000-memory.dmp
memory/2084-18-0x0000000000B20000-0x0000000000B3D000-memory.dmp
memory/2084-17-0x0000000000B20000-0x0000000000B3D000-memory.dmp
memory/2084-21-0x0000000000B20000-0x0000000000B3D000-memory.dmp
C:\Users\Admin\AppData\Local\KB7756356\KB7756356.exe
| MD5 | 3f09fbc368f17edb61193d5db5ee0749 |
| SHA1 | e6b725fcf7c69c251ca05b6fac7816c0b9579d52 |
| SHA256 | 253c088b88328696a1b70dd570fb0372c912a7b7a5eeb703d2cc7d29b2cdbf32 |
| SHA512 | d068ca2291e4363ef070b0d2bfe81adc7eb656d978c97c22f7e6bd6b5a4b5a2939fe996753ce0d3cf7271cf45a346dfc9297e92bd00e4798804b9db37d0aa2b9 |
memory/2084-26-0x0000000000B20000-0x0000000000B3D000-memory.dmp
memory/2084-33-0x0000000000B20000-0x0000000000B3D000-memory.dmp
memory/2084-49-0x0000000000B20000-0x0000000000B3D000-memory.dmp
memory/2084-65-0x0000000000B20000-0x0000000000B3D000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-13 10:29
Reported
2024-05-13 10:31
Platform
win10v2004-20240426-en
Max time kernel
149s
Max time network
150s
Command Line
Signatures
Modifies WinLogon for persistence
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\SHELL = "explorer.exe, \"C:\\Users\\Admin\\AppData\\Local\\KB8777677\\KB8777677.exe\"" | C:\Windows\SysWOW64\svchost.exe | N/A |
Adds policy Run key to start application
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run | C:\Windows\SysWOW64\svchost.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\KB8777677 = "\"C:\\Users\\Admin\\AppData\\Local\\KB8777677\\KB8777677.exe\"" | C:\Windows\SysWOW64\svchost.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run | C:\Windows\SysWOW64\svchost.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\KB8777677 = "\"C:\\Users\\Admin\\AppData\\Local\\KB8777677\\KB8777677.exe\"" | C:\Windows\SysWOW64\svchost.exe | N/A |
Disables RegEdit via registry modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" | C:\Windows\SysWOW64\svchost.exe | N/A |
Disables Task Manager via registry modification
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\svchost.exe | N/A |
UPX packed file
| Description | Indicator | Process | Target |
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Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\KB8777677 = "\"C:\\Users\\Admin\\AppData\\Local\\KB8777677\\KB8777677.exe\"" | C:\Windows\SysWOW64\svchost.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\KB8777677 = "\"C:\\Users\\Admin\\AppData\\Local\\KB8777677\\KB8777677.exe\"" | C:\Windows\SysWOW64\svchost.exe | N/A |
Modifies Internet Explorer settings
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Enable AutoImageResize = "yes" | C:\Windows\SysWOW64\svchost.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Play_Animations = "yes" | C:\Windows\SysWOW64\svchost.exe | N/A |
| Set value (int) | \REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\SOFTWARE\Microsoft\Internet Explorer\Main\UseThemes = "1" | C:\Windows\SysWOW64\svchost.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3906287020-2915474608-1755617787-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Display Inline Images = "yes" | C:\Windows\SysWOW64\svchost.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3f09fbc368f17edb61193d5db5ee0749_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\3f09fbc368f17edb61193d5db5ee0749_JaffaCakes118.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\svchost.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\3f09fbc368f17edb61193d5db5ee0749_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3f09fbc368f17edb61193d5db5ee0749_JaffaCakes118.exe"
C:\Users\Admin\AppData\Local\Temp\3f09fbc368f17edb61193d5db5ee0749_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3f09fbc368f17edb61193d5db5ee0749_JaffaCakes118.exe"
C:\Windows\SysWOW64\svchost.exe
"svchost.exe" path<<c:\users\admin\appdata\local\temp\3f09fbc368f17edb61193d5db5ee0749_jaffacakes118.exe>>path
C:\Windows\SysWOW64\svchost.exe
"svchost.exe" path<<c:\users\admin\appdata\local\temp\3f09fbc368f17edb61193d5db5ee0749_jaffacakes118.exe>>path
Network
| Country | Destination | Domain | Proto |
| 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 | 28.118.140.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 79.190.18.2.in-addr.arpa | udp |
| NL | 23.62.61.160:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 23.181.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 160.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | sectempus.biz | udp |
| US | 8.8.8.8:53 | zipwog.ru | udp |
| NL | 23.62.61.160:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 133.211.185.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.205.72.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 171.39.242.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 142.53.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.204.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 138.201.86.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 169.117.168.52.in-addr.arpa | udp |
Files
memory/3216-0-0x00000000005C0000-0x00000000005C1000-memory.dmp
memory/3216-1-0x0000000000400000-0x0000000000417000-memory.dmp
memory/2804-2-0x0000000000400000-0x000000000041D000-memory.dmp
memory/2804-3-0x0000000000400000-0x000000000041D000-memory.dmp
memory/2804-4-0x0000000000400000-0x000000000041D000-memory.dmp
memory/2804-5-0x0000000000400000-0x000000000041D000-memory.dmp
memory/1528-8-0x0000000000BD0000-0x0000000000BE7000-memory.dmp
memory/1528-7-0x0000000000BD0000-0x0000000000BE7000-memory.dmp
memory/2804-10-0x0000000000400000-0x000000000041D000-memory.dmp
memory/1528-11-0x0000000000BD0000-0x0000000000BE7000-memory.dmp
memory/1528-14-0x0000000000BD0000-0x0000000000BE7000-memory.dmp
memory/2668-15-0x0000000000BD0000-0x0000000000BED000-memory.dmp
memory/2668-17-0x0000000000BD0000-0x0000000000BED000-memory.dmp
memory/2668-18-0x0000000000BD0000-0x0000000000BED000-memory.dmp
memory/2668-20-0x0000000000BD0000-0x0000000000BED000-memory.dmp
memory/2668-21-0x0000000000BD0000-0x0000000000BED000-memory.dmp
C:\Users\Admin\AppData\Local\KB8777677\KB8777677.exe
| MD5 | 3f09fbc368f17edb61193d5db5ee0749 |
| SHA1 | e6b725fcf7c69c251ca05b6fac7816c0b9579d52 |
| SHA256 | 253c088b88328696a1b70dd570fb0372c912a7b7a5eeb703d2cc7d29b2cdbf32 |
| SHA512 | d068ca2291e4363ef070b0d2bfe81adc7eb656d978c97c22f7e6bd6b5a4b5a2939fe996753ce0d3cf7271cf45a346dfc9297e92bd00e4798804b9db37d0aa2b9 |
memory/2668-26-0x0000000000BD0000-0x0000000000BED000-memory.dmp
memory/2668-36-0x0000000000BD0000-0x0000000000BED000-memory.dmp
memory/2668-59-0x0000000000BD0000-0x0000000000BED000-memory.dmp
memory/2668-66-0x0000000000BD0000-0x0000000000BED000-memory.dmp