Analysis Overview
SHA256
9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061
Threat Level: Shows suspicious behavior
The file 9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf was found to be: Shows suspicious behavior.
Malicious Activity Summary
UPX packed file
Enumerates running processes
Checks hardware identifiers (DMI)
Creates/modifies Cron job
Reads hardware information
Reads CPU attributes
Changes its process name
Checks CPU configuration
Enumerates kernel/hardware configuration
Reads runtime system information
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-14 06:54
Signatures
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-14 06:54
Reported
2024-06-14 06:56
Platform
ubuntu2004-amd64-20240508-en
Max time kernel
148s
Max time network
150s
Command Line
Signatures
Checks hardware identifiers (DMI)
| Description | Indicator | Process | Target |
| File opened for reading | /sys/devices/virtual/dmi/id/sys_vendor | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/virtual/dmi/id/product_name | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/virtual/dmi/id/board_vendor | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/virtual/dmi/id/bios_vendor | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
Creates/modifies Cron job
| Description | Indicator | Process | Target |
| File opened for modification | /var/spool/cron/crontabs/tmp.RwyjIC | /usr/bin/crontab | N/A |
Enumerates running processes
Reads hardware information
| Description | Indicator | Process | Target |
| File opened for reading | /sys/devices/virtual/dmi/id/product_version | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/virtual/dmi/id/board_name | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/virtual/dmi/id/chassis_asset_tag | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/virtual/dmi/id/bios_version | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/virtual/dmi/id/bios_date | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/virtual/dmi/id/product_serial | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/virtual/dmi/id/product_uuid | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/virtual/dmi/id/board_serial | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/virtual/dmi/id/board_asset_tag | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/virtual/dmi/id/chassis_version | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/virtual/dmi/id/chassis_vendor | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/virtual/dmi/id/chassis_type | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/virtual/dmi/id/board_version | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/virtual/dmi/id/chassis_serial | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
Changes its process name
| Description | Indicator | Process | Target |
| Changes the process name, possibly in an attempt to hide itself | N/A | N/A | N/A |
Checks CPU configuration
| Description | Indicator | Process | Target |
| File opened for reading | /proc/cpuinfo | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
Reads CPU attributes
| Description | Indicator | Process | Target |
| File opened for reading | /sys/devices/system/cpu/cpu0/cache/index2/size | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cpufreq/base_frequency | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/topology/core_cpus | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cache/index0/number_of_sets | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cache/index2/type | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cache/index2/shared_cpu_map | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cache/index2/id | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cache/index2/coherency_line_size | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cache/index3/number_of_sets | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/topology/cluster_cpus | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cache/index0/physical_line_partition | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cache/index1/level | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cache/index3/physical_line_partition | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cache/index7/shared_cpu_map | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cpu_capacity | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/possible | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/topology/die_cpus | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cache/index0/id | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cache/index3/shared_cpu_map | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cache/index2/physical_line_partition | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cache/index3/level | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cache/index3/type | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cache/index3/id | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cache/index4/shared_cpu_map | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/online | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cache/index0/coherency_line_size | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cache/index2/number_of_sets | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cache/index3/coherency_line_size | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/topology/core_id | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cache/index0/type | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cache/index2/level | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cache/index1/shared_cpu_map | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cache/index8/shared_cpu_map | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/topology/package_cpus | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cache/index0/size | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cache/index5/shared_cpu_map | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cache/index1/type | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cache/index1/id | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cache/index3/size | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cache/index6/shared_cpu_map | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cache/index9/shared_cpu_map | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/topology/physical_package_id | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cache/index0/shared_cpu_map | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
| File opened for reading | /sys/devices/system/cpu/cpu0/cache/index0/level | /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf | N/A |
Enumerates kernel/hardware configuration
Reads runtime system information
Processes
/tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf
[/tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf]
/bin/sh
[sh -c command -v crontab >/dev/null 2>&1]
/bin/sh
[sh -c crontab -r >/dev/null 2>&1; echo "@reboot /tmp/9ef2ef02376445bf4c145820c0c81f2bbe0b96f2017278562e0bd259bf7bd061.elf" | crontab -]
/usr/bin/crontab
[crontab -r]
/usr/bin/crontab
[crontab -]
/bin/sh
[sh -c iptables -I INPUT -p tcp --dport 36989 -j ACCEPT >/dev/null 2>&1]
/usr/sbin/iptables
[iptables -I INPUT -p tcp --dport 36989 -j ACCEPT]
/bin/sh
[sh -c command -v php >/dev/null 2>&1]
/bin/sh
[sh -c command -v nginx >/dev/null 2>&1]
/bin/sh
[sh -c which apache2]
/usr/bin/which
[which apache2]
/bin/sh
[sh -c which httpd]
/usr/bin/which
[which httpd]
Network
| Country | Destination | Domain | Proto |
| N/A | 224.0.0.251:5353 | udp | |
| SE | 95.215.19.53:853 | tcp | |
| US | 1.1.1.1:53 | connectivity-check.ubuntu.com | udp |
| US | 1.1.1.1:853 | tcp | |
| DE | 217.160.70.42:853 | tcp | |
| US | 1.0.0.1:853 | tcp | |
| DE | 178.254.22.166:853 | tcp | |
| US | 8.8.8.8:853 | tcp | |
| DE | 81.169.136.222:853 | tcp | |
| US | 8.8.4.4:853 | tcp | |
| NO | 185.181.61.24:853 | tcp | |
| SE | 95.215.19.53:853 | tcp | |
| US | 1.1.1.1:853 | tcp | |
| DE | 217.160.70.42:853 | tcp | |
| US | 1.0.0.1:853 | tcp | |
| DE | 178.254.22.166:853 | tcp | |
| US | 8.8.8.8:853 | tcp | |
| DE | 81.169.136.222:853 | tcp | |
| US | 8.8.4.4:853 | tcp | |
| NO | 185.181.61.24:853 | tcp | |
| SE | 95.215.19.53:853 | tcp | |
| US | 1.1.1.1:853 | tcp | |
| DE | 217.160.70.42:853 | tcp | |
| US | 1.0.0.1:853 | tcp | |
| DE | 178.254.22.166:853 | tcp | |
| US | 8.8.8.8:853 | tcp | |
| DE | 81.169.136.222:853 | tcp | |
| US | 8.8.4.4:853 | tcp | |
| NO | 185.181.61.24:853 | tcp | |
| SE | 95.215.19.53:853 | tcp | |
| US | 1.1.1.1:853 | tcp | |
| US | 1.1.1.1:53 | connectivity-check.ubuntu.com | udp |
| DE | 217.160.70.42:853 | tcp | |
| US | 1.0.0.1:853 | tcp | |
| DE | 178.254.22.166:853 | tcp | |
| US | 8.8.8.8:853 | tcp | |
| DE | 81.169.136.222:853 | tcp |
Files
/var/spool/cron/crontabs/tmp.RwyjIC
| MD5 | 1feb9b9d31c8306653224837534c0133 |
| SHA1 | 90eeda8cc39bae085b9c09039e841203b8a516c1 |
| SHA256 | bed5ae3632ccd7b3341ecdd9e8e8ea8cc14f185b13154eb747967711510e084c |
| SHA512 | 05e213987ea94c3ee0ed2d3a96783731bb5e363a44579679efc73e155753ae112e12feb9990f5f803144017e9bff74794a2092cb4b42788ce03f923f910a040e |