Linux Analysis Report
Tb0uDdOwyO.elf

Overview

General Information

Sample name: Tb0uDdOwyO.elf
renamed because original name is a hash value
Original sample name: 3e187e6674b0013cefa5b0aee409be68.elf
Analysis ID: 1430427
MD5: 3e187e6674b0013cefa5b0aee409be68
SHA1: 3789e604f3eb3c3e2fda15ccfab2001d7eed8bf6
SHA256: 4e3ea3385ea84d2ad76cb34eb7188aff681a5a2513b3922f12846dc4d4ba2495
Tags: 32elfmipsmirai
Infos:

Detection

Score: 60
Range: 0 - 100
Whitelisted: false

Signatures

Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Sample deletes itself
Creates hidden files and/or directories
Detected TCP or UDP traffic on non-standard ports
Enumerates processes within the "proc" file system
Found strings indicative of a multi-platform dropper
Sample has stripped symbol table
Sample tries to kill a process (SIGKILL)
Uses the "uname" system call to query kernel version information (possible evasion)

Classification

AV Detection
barindex
Antivirus / Scanner detection for submitted sample
Source: Tb0uDdOwyO.elf Avira: detected
Multi AV Scanner detection for submitted file
Source: Tb0uDdOwyO.elf ReversingLabs: Detection: 31%
Found strings indicative of a multi-platform dropper
Source: Tb0uDdOwyO.elf String: 'EOF/proc//proc/%s/cmdlinerwgetcurlftpechokillbashrebootshutdownhaltpoweroff[locker] killed process: %s ;; pid: %d
Detected TCP or UDP traffic on non-standard ports
Source: global traffic TCP traffic: 192.168.2.15:53542 -> 94.156.79.77:33966
Source: global traffic TCP traffic: 192.168.2.15:37426 -> 89.190.156.145:7733
Source: unknown TCP traffic detected without corresponding DNS query: 89.190.156.145
Source: unknown TCP traffic detected without corresponding DNS query: 89.190.156.145
Source: unknown TCP traffic detected without corresponding DNS query: 89.190.156.145
Source: unknown TCP traffic detected without corresponding DNS query: 89.190.156.145
Source: unknown TCP traffic detected without corresponding DNS query: 89.190.156.145
Source: unknown TCP traffic detected without corresponding DNS query: 89.190.156.145
Source: unknown TCP traffic detected without corresponding DNS query: 89.190.156.145
Source: unknown DNS traffic detected: queries for: cnc.voidnet.click
Sample has stripped symbol table
Source: ELF static info symbol of initial sample .symtab present: no
Sample tries to kill a process (SIGKILL)
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) SIGKILL sent: pid: 1679, result: successful Jump to behavior
Source: classification engine Classification label: mal60.evad.linELF@0/1@2/0
Creates hidden files and/or directories
Source: /usr/libexec/gsd-rfkill (PID: 5537) Directory: <invalid fd (9)>/.. Jump to behavior
Source: /usr/libexec/gsd-rfkill (PID: 5537) Directory: <invalid fd (8)>/.. Jump to behavior
Source: /lib/systemd/systemd-hostnamed (PID: 5542) Directory: <invalid fd (10)>/.. Jump to behavior
Enumerates processes within the "proc" file system
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/110/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/231/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/111/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/112/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/233/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/113/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/114/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/235/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/115/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/1333/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/116/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/117/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/118/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/119/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/911/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/914/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/10/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/917/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/11/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/12/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/13/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/14/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/15/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/16/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/17/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/18/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/19/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/1591/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/120/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/121/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/122/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/243/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/2/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/123/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/3/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/124/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/1588/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/125/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/4/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/246/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/126/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/5/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/127/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/6/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/1585/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/128/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/7/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/129/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/8/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/800/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/9/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/802/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/803/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/804/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/20/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/21/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/22/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/23/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/24/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/25/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/26/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/27/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/28/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/29/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/1484/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/490/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/250/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/130/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/251/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/131/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/132/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/133/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/1479/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/378/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/258/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/259/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/931/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/1595/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/812/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/933/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/30/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/35/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/260/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/261/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/262/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/142/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/263/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/264/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/265/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/145/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/266/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/267/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/268/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/269/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/1486/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/270/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/271/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/272/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/273/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/274/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/275/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/276/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/277/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/278/cmdline Jump to behavior
Source: /tmp/Tb0uDdOwyO.elf (PID: 5527) File opened: /proc/279/cmdline Jump to behavior

Hooking and other Techniques for Hiding and Protection
barindex
Sample deletes itself
Source: /tmp/Tb0uDdOwyO.elf (PID: 5525) File: /tmp/Tb0uDdOwyO.elf Jump to behavior
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/Tb0uDdOwyO.elf (PID: 5523) Queries kernel information via 'uname': Jump to behavior
Source: /lib/systemd/systemd-hostnamed (PID: 5542) Queries kernel information via 'uname': Jump to behavior
Source: Tb0uDdOwyO.elf, 5523.1.00007ffe45da0000.00007ffe45dc1000.rw-.sdmp Binary or memory string: /tmp/qemu-open.BMIFQP
Source: Tb0uDdOwyO.elf, 5523.1.000055c7ed6bf000.000055c7ed746000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/mipsel
Source: Tb0uDdOwyO.elf, 5523.1.00007ffe45da0000.00007ffe45dc1000.rw-.sdmp Binary or memory string: U/tmp/qemu-open.BMIFQP\
Source: Tb0uDdOwyO.elf, 5523.1.00007ffe45da0000.00007ffe45dc1000.rw-.sdmp Binary or memory string: /qemu-open.XXXXX
Source: Tb0uDdOwyO.elf, 5523.1.00007ffe45da0000.00007ffe45dc1000.rw-.sdmp Binary or memory string: x86_64/usr/bin/qemu-mipsel/tmp/Tb0uDdOwyO.elfSUDO_USER=saturninoPATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/binDISPLAY=:1.0XAUTHORITY=/run/user/1000/gdm/XauthoritySUDO_UID=1000TERM=xterm-256colorCOLORTERM=truecolorLOGNAME=rootUSER=rootLANG=en_US.UTF-8SUDO_COMMAND=/bin/bashHOME=/rootMAIL=/var/mail/rootSUDO_GID=1000SHELL=/bin/bash/tmp/Tb0uDdOwyO.elf
Source: Tb0uDdOwyO.elf, 5523.1.000055c7ed6bf000.000055c7ed746000.rw-.sdmp Binary or memory string: U!/etc/qemu-binfmt/mipsel
Source: Tb0uDdOwyO.elf, 5523.1.00007ffe45da0000.00007ffe45dc1000.rw-.sdmp Binary or memory string: /usr/bin/qemu-mipsel
windows-stand
  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs

Contacted Public IPs

IP Domain Country Flag ASN ASN Name Malicious
94.156.79.77
 cnc.voidnet.click Bulgaria
43561 NET1-ASBG false
89.190.156.145
 unknown United Kingdom
7489 HOSTUS-GLOBAL-ASHostUSHK false

Contacted Domains

Name IP Active
cnc.voidnet.click 94.156.79.77 true