Analysis Overview
SHA256
b760477f768e703c3303ef963fef44f85395c92b96149bb7706393df31ee3e62
Threat Level: Known bad
The file 4a4a0fa94a50b4ad04ccb4999fa7b89b_JaffaCakes118 was found to be: Known bad.
Malicious Activity Summary
Emotet
Emotet payload
Executes dropped EXE
Drops file in System32 directory
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-05-16 08:50
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-05-16 08:50
Reported
2024-05-16 08:53
Platform
win7-20240508-en
Max time kernel
129s
Max time network
140s
Command Line
Signatures
Emotet
Emotet payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\fdBth\mstask.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\fdBth\mstask.exe | C:\Users\Admin\AppData\Local\Temp\4a4a0fa94a50b4ad04ccb4999fa7b89b_JaffaCakes118.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\fdBth\mstask.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\fdBth\mstask.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\fdBth\mstask.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\fdBth\mstask.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\fdBth\mstask.exe | N/A |
Suspicious behavior: RenamesItself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\4a4a0fa94a50b4ad04ccb4999fa7b89b_JaffaCakes118.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1716 wrote to memory of 2160 | N/A | C:\Users\Admin\AppData\Local\Temp\4a4a0fa94a50b4ad04ccb4999fa7b89b_JaffaCakes118.exe | C:\Windows\SysWOW64\fdBth\mstask.exe |
| PID 1716 wrote to memory of 2160 | N/A | C:\Users\Admin\AppData\Local\Temp\4a4a0fa94a50b4ad04ccb4999fa7b89b_JaffaCakes118.exe | C:\Windows\SysWOW64\fdBth\mstask.exe |
| PID 1716 wrote to memory of 2160 | N/A | C:\Users\Admin\AppData\Local\Temp\4a4a0fa94a50b4ad04ccb4999fa7b89b_JaffaCakes118.exe | C:\Windows\SysWOW64\fdBth\mstask.exe |
| PID 1716 wrote to memory of 2160 | N/A | C:\Users\Admin\AppData\Local\Temp\4a4a0fa94a50b4ad04ccb4999fa7b89b_JaffaCakes118.exe | C:\Windows\SysWOW64\fdBth\mstask.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\4a4a0fa94a50b4ad04ccb4999fa7b89b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4a4a0fa94a50b4ad04ccb4999fa7b89b_JaffaCakes118.exe"
C:\Windows\SysWOW64\fdBth\mstask.exe
"C:\Windows\SysWOW64\fdBth\mstask.exe"
Network
| Country | Destination | Domain | Proto |
| JP | 116.91.240.96:80 | tcp | |
| JP | 116.91.240.96:80 | tcp | |
| IN | 167.71.227.113:8080 | tcp | |
| IN | 167.71.227.113:8080 | tcp | |
| CO | 190.85.46.52:7080 | tcp | |
| CO | 190.85.46.52:7080 | tcp | |
| US | 162.144.42.60:8080 | tcp | |
| US | 162.144.42.60:8080 | tcp |
Files
memory/1716-7-0x0000000000230000-0x000000000023F000-memory.dmp
memory/1716-4-0x0000000000270000-0x0000000000280000-memory.dmp
memory/1716-0-0x0000000000250000-0x0000000000262000-memory.dmp
C:\Windows\SysWOW64\fdBth\mstask.exe
| MD5 | 4a4a0fa94a50b4ad04ccb4999fa7b89b |
| SHA1 | 6b8e952ff77550718dd04c702e66d7ed5fa7805a |
| SHA256 | b760477f768e703c3303ef963fef44f85395c92b96149bb7706393df31ee3e62 |
| SHA512 | 9343322904a247fc357177e5da627e2273f902868ce669bb678c1843e65c9f1379225bf2b34901d9554dd46427c941567500273cb2f993f3ef6aabec5ceb296f |
memory/1716-8-0x0000000000400000-0x00000000004AD000-memory.dmp
memory/2160-14-0x0000000000200000-0x0000000000210000-memory.dmp
memory/2160-10-0x00000000001E0000-0x00000000001F2000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-05-16 08:50
Reported
2024-05-16 08:53
Platform
win10v2004-20240508-en
Max time kernel
141s
Max time network
153s
Command Line
Signatures
Emotet
Emotet payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\wlanext\NAPCRYPT.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\SysWOW64\wlanext\NAPCRYPT.exe | C:\Users\Admin\AppData\Local\Temp\4a4a0fa94a50b4ad04ccb4999fa7b89b_JaffaCakes118.exe | N/A |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\wlanext\NAPCRYPT.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\wlanext\NAPCRYPT.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\wlanext\NAPCRYPT.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\wlanext\NAPCRYPT.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\wlanext\NAPCRYPT.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\wlanext\NAPCRYPT.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\wlanext\NAPCRYPT.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\wlanext\NAPCRYPT.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\wlanext\NAPCRYPT.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\wlanext\NAPCRYPT.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\wlanext\NAPCRYPT.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\wlanext\NAPCRYPT.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\wlanext\NAPCRYPT.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\wlanext\NAPCRYPT.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\wlanext\NAPCRYPT.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\wlanext\NAPCRYPT.exe | N/A |
Suspicious behavior: RenamesItself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\4a4a0fa94a50b4ad04ccb4999fa7b89b_JaffaCakes118.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1952 wrote to memory of 4536 | N/A | C:\Users\Admin\AppData\Local\Temp\4a4a0fa94a50b4ad04ccb4999fa7b89b_JaffaCakes118.exe | C:\Windows\SysWOW64\wlanext\NAPCRYPT.exe |
| PID 1952 wrote to memory of 4536 | N/A | C:\Users\Admin\AppData\Local\Temp\4a4a0fa94a50b4ad04ccb4999fa7b89b_JaffaCakes118.exe | C:\Windows\SysWOW64\wlanext\NAPCRYPT.exe |
| PID 1952 wrote to memory of 4536 | N/A | C:\Users\Admin\AppData\Local\Temp\4a4a0fa94a50b4ad04ccb4999fa7b89b_JaffaCakes118.exe | C:\Windows\SysWOW64\wlanext\NAPCRYPT.exe |
Processes
C:\Users\Admin\AppData\Local\Temp\4a4a0fa94a50b4ad04ccb4999fa7b89b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4a4a0fa94a50b4ad04ccb4999fa7b89b_JaffaCakes118.exe"
C:\Windows\SysWOW64\wlanext\NAPCRYPT.exe
"C:\Windows\SysWOW64\wlanext\NAPCRYPT.exe"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 183.142.211.20.in-addr.arpa | udp |
| NL | 23.62.61.113:443 | www.bing.com | tcp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 74.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 113.61.62.23.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| JP | 116.91.240.96:80 | tcp | |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 157.123.68.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 206.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 28.143.109.104.in-addr.arpa | udp |
| IN | 167.71.227.113:8080 | tcp | |
| CO | 190.85.46.52:7080 | tcp | |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 162.144.42.60:8080 | tcp | |
| US | 8.8.8.8:53 | 31.243.111.52.in-addr.arpa | udp |
| PK | 202.166.170.43:80 | tcp | |
| 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 | 55.36.223.20.in-addr.arpa | udp |
| FI | 95.216.205.155:8080 | tcp | |
| JP | 120.51.34.254:80 | tcp |
Files
memory/1952-4-0x0000000002100000-0x0000000002110000-memory.dmp
memory/1952-0-0x00000000020E0000-0x00000000020F2000-memory.dmp
memory/1952-7-0x00000000020C0000-0x00000000020CF000-memory.dmp
C:\Windows\SysWOW64\wlanext\NAPCRYPT.exe
| MD5 | 4a4a0fa94a50b4ad04ccb4999fa7b89b |
| SHA1 | 6b8e952ff77550718dd04c702e66d7ed5fa7805a |
| SHA256 | b760477f768e703c3303ef963fef44f85395c92b96149bb7706393df31ee3e62 |
| SHA512 | 9343322904a247fc357177e5da627e2273f902868ce669bb678c1843e65c9f1379225bf2b34901d9554dd46427c941567500273cb2f993f3ef6aabec5ceb296f |
memory/1952-9-0x0000000000400000-0x00000000004AD000-memory.dmp
memory/4536-14-0x0000000002490000-0x00000000024A0000-memory.dmp
memory/4536-10-0x0000000002470000-0x0000000002482000-memory.dmp