Analysis
- max time kernel
149s - max time network
151s - platform
debian-9_mips - resource
debian9-mipsbe-20250619-en - resource tags
arch:mipsimage:debian9-mipsbe-20250619-enkernel:4.9.0-13-4kc-maltalocale:en-usos:debian-9-mipssystem - submitted
08/07/2025, 22:18
Static task
static1
Behavioral task
behavioral1
Sample
mips.elf
Resource
debian9-mipsbe-20250619-en
General
- Target mips.elf
- Size 578KB
- Sample250708-173afaem71
- SHA256 e72977a954e34ef3a0e7b30fd4d972854443e501d76ee08e07e95232d9079057
- MD5 8e4e903c47163317f7be7dc6e3b00a5e
- SHA1 4e037e806f4bf177a9271fbbe8c7cf98d6d4e425
- SHA512 fc957dd0570efd694296c2e74859fc823a294ce280d0e2ba7839c4a2bc6361df7020cd42aa1bd6097291847c0f714eceafe6c961e932cd6452cab6046db53793
- SSDEEP 12288:M57U0INmdtgOcyJXDOMzf03gdvZ/yCnEI7z2:W7v+mrY2xzf03yvZ/YIW
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Renames itself 1 IoCs
pid Process 710 mips.elf - Checks hardware identifiers (DMI) 1 TTPs 2 IoCs
Checks DMI information which indicate if the system is a virtual machine.
description ioc Process File opened for reading /sys/devices/virtual/dmi/id/board_vendor configuration File opened for reading /sys/class/dmi/id/board_vendor configuration - Creates/modifies Cron job 1 TTPs 1 IoCs
Cron allows running tasks on a schedule, and is commonly used for malware persistence.
description ioc Process File opened for modification /var/spool/cron/crontabs/tmp.ubKuSA crontab - Enumerates running processes
Discovers information about currently running processes on the system
- Reads MAC address of network interface 2 TTPs 1 IoCs
Fetches the MAC address of active network interfaces. May be used to detect known values for hypervisors.
description ioc Process File opened for reading /sys/class/net/enp0s19/address configuration - Reads hardware information 1 TTPs 4 IoCs
Accesses system info like serial numbers, manufacturer names etc.
description ioc Process File opened for reading /sys/devices/virtual/dmi/id/board_name configuration File opened for reading /sys/devices/virtual/dmi/id/product_uuid configuration File opened for reading /sys/class/dmi/id/board_name configuration File opened for reading /sys/class/dmi/id/product_uuid configuration - Checks CPU configuration 1 TTPs 1 IoCs
Checks CPU information which indicate if the system is a virtual machine.
description ioc Process File opened for reading /proc/cpuinfo configuration - Reads CPU attributes 1 TTPs 1 IoCs
description ioc Process File opened for reading /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq configuration - Enumerates kernel/hardware configuration 1 TTPs 1 IoCs
Reads contents of /sys virtual filesystem to enumerate system information.
description ioc Process File opened for reading /sys/class/net configuration -
description ioc Process File opened for reading /proc/683/cmdline configuration File opened for reading /proc/11/cmdline configuration File opened for reading /proc/18/cmdline configuration File opened for reading /proc/70/cmdline configuration File opened for reading /proc/79/cmdline configuration File opened for reading /proc/236/cmdline configuration File opened for reading /proc/253/cmdline configuration File opened for reading /proc/716/cmdline configuration File opened for reading /proc/filesystems crontab File opened for reading /proc/24/cmdline configuration File opened for reading /proc/127/cmdline configuration File opened for reading /proc/175/cmdline configuration File opened for reading /proc/366/cmdline configuration File opened for reading /proc/681/cmdline configuration File opened for reading /proc/3/cmdline configuration File opened for reading /proc/12/cmdline configuration File opened for reading /proc/21/cmdline configuration File opened for reading /proc/337/cmdline configuration File opened for reading /proc/662/cmdline configuration File opened for reading /proc/703/cmdline configuration File opened for reading /proc/726/cmdline configuration File opened for reading /proc/77/cmdline configuration File opened for reading /proc/82/cmdline configuration File opened for reading /proc/708/cmdline configuration File opened for reading /proc/filesystems crontab File opened for reading /proc/mounts configuration File opened for reading /proc/5/cmdline configuration File opened for reading /proc/13/cmdline configuration File opened for reading /proc/69/cmdline configuration File opened for reading /proc/429/cmdline configuration File opened for reading /proc/729/cmdline configuration File opened for reading /proc/filesystems crontab File opened for reading /proc/1/cmdline configuration File opened for reading /proc/334/cmdline configuration File opened for reading /proc/707/cmdline configuration File opened for reading /proc/9/cmdline configuration File opened for reading /proc/23/cmdline configuration File opened for reading /proc/383/cmdline configuration File opened for reading /proc/720/cmdline configuration File opened for reading /proc/10/cmdline configuration File opened for reading /proc/14/cmdline configuration File opened for reading /proc/19/cmdline configuration File opened for reading /proc/2/cmdline configuration File opened for reading /proc/80/cmdline configuration File opened for reading /proc/device-tree/model configuration File opened for reading /proc/8/cmdline configuration File opened for reading /proc/36/cmdline configuration File opened for reading /proc/76/cmdline configuration File opened for reading /proc/684/cmdline configuration File opened for reading /proc/704/cmdline configuration File opened for reading /proc/68/cmdline configuration File opened for reading /proc/385/cmdline configuration File opened for reading /proc/387/cmdline configuration File opened for reading /proc/16/cmdline configuration File opened for reading /proc/17/cmdline configuration File opened for reading /proc/367/cmdline configuration File opened for reading /proc/161/cmdline configuration File opened for reading /proc/339/cmdline configuration File opened for reading /proc/4/cmdline configuration File opened for reading /proc/6/cmdline configuration File opened for reading /proc/71/cmdline configuration File opened for reading /proc/678/cmdline configuration File opened for reading /proc/15/cmdline configuration File opened for reading /proc/22/cmdline configuration - System Network Configuration Discovery 1 TTPs 2 IoCs
Adversaries may gather information about the network configuration of a system.
pid Process 710 mips.elf 710 configuration - Writes file to tmp directory 1 IoCs
Malware often drops required files in the /tmp directory.
description ioc Process File opened for modification /tmp/root1086f3d configuration
Processes
-
/tmp/mips.elf/tmp/mips.elf1⤵
- Renames itself
- System Network Configuration Discovery
PID:710 -
/bin/shsh -c "crontab -l"2⤵PID:712
-
/usr/bin/crontabcrontab -l3⤵
- Reads runtime system information
PID:713
-
-
-
/bin/shsh -c "(crontab -l ; echo \"@reboot /root/.sys/configuration\")| crontab -"2⤵PID:715
-
/usr/bin/crontabcrontab -3⤵
- Creates/modifies Cron job
- Reads runtime system information
PID:718
-
-
/usr/bin/crontabcrontab -l3⤵
- Reads runtime system information
PID:719
-
-
-
/root/.sys/configuration/tmp/mips.elf1⤵
- Checks hardware identifiers (DMI)
- Reads MAC address of network interface
- Reads hardware information
- Checks CPU configuration
- Reads CPU attributes
- Enumerates kernel/hardware configuration
- Reads runtime system information
- System Network Configuration Discovery
- Writes file to tmp directory
PID:710
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path /var/spool/cron/crontabs/tmp.ubKuSA
- Size 208B
- SHA256 4b8fe02175b44ba1cbbee08b65b43bad759541ef8f18fc7b9b26cab9a107dc06
- MD5 ca6495e0829157f446ff7de900a8ee9f
- SHA1 c32c1126d0b1a375219f5411cab15a38df9e1b92
- SHA512 eea0237914ef1bb3f7a7fd89879a959f094265391d43f5bfa7f6888c994e6ef31875897cb7b0d388a00577f5f64df6586897bff9fdfd0e80cd3d7c6b571808d0
- MD5 SHA1 SHA512