Linux Analysis Report
sshd.elf

Overview

General Information

Sample name: sshd.elf
Analysis ID: 1562365
MD5: 8e03d921245f9f32ae3b92ed20a5d5e8
SHA1: 6eee8855223cdf5109a1f2e51a6231888f4c5595
SHA256: 3a2001a431bba6d552f43f6deeaabdcd222cd4bcbef4dd03b916fe9cddeda8a7
Tags: elfuser-abuse_ch
Infos:

Detection

Score: 48
Range: 0 - 100
Whitelisted: false

Signatures

Multi AV Scanner detection for submitted file
Contains symbols related to standard C library sleeps (sometimes used to evade sandboxing)
Sample contains strings that are potentially command strings
Sample has stripped symbol table
Uses the "uname" system call to query kernel version information (possible evasion)

Classification

AV Detection
barindex
Multi AV Scanner detection for submitted file
Source: sshd.elf ReversingLabs: Detection: 26%
Source: unknown UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: unknown UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: global traffic DNS traffic detected: DNS query: daisy.ubuntu.com
Source: sshd.elf ELF static info symbol of initial sample: freeaddrinfo
Source: sshd.elf ELF static info symbol of initial sample: gai_strerror
Source: sshd.elf ELF static info symbol of initial sample: getaddrinfo
Source: sshd.elf ELF static info symbol of initial sample: getnameinfo
Source: sshd.elf String found in binary or memory: http://www.openssl.org/support/faq.html
Source: sshd.elf String found in binary or memory: http://www.openssl.org/support/faq.htmlmd_rand.c
Sample contains strings that are potentially command strings
Source: Initial sample Potential command found: ssh server is locked, please try again %dmin after !!!
Source: Initial sample Potential command found: X11 forwarding
Source: Initial sample Potential command found: X11 forwarding disabled in user configuration file.
Source: Initial sample Potential command found: X11 forwarding disabled in server configuration file.
Source: Initial sample Potential command found: X11 display already set.
Source: Initial sample Potential command found: X11 connection requested.
Source: Initial sample Potential command found: X11 connection from %.200s port %d
Source: Initial sample Potential command found: X11 connection rejected because of wrong authentication.
Source: Initial sample Potential command found: X11 rejected %d i%d/o%d
Source: Initial sample Potential command found: X11 closed %d i%d/o%d
Source: Initial sample Potential command found: X11 inet listener
Source: Initial sample Potential command found: X11 connection uses different authentication protocol.
Source: Initial sample Potential command found: X11 auth data does not match fake data.
Source: Initial sample Potential command found: X11 fake_data_len %d != saved_data_len %d
Sample has stripped symbol table
Source: ELF static info symbol of initial sample .symtab present: no
Source: classification engine Classification label: mal48.linELF@0/0@2/0
Contains symbols related to standard C library sleeps (sometimes used to evade sandboxing)
Source: ELF symbol in initial sample Symbol name: usleep
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/sshd.elf (PID: 5487) Queries kernel information via 'uname': Jump to behavior
Source: sshd.elf, 5487.1.00007ffe590da000.00007ffe590fb000.rw-.sdmp Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/sshd.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/sshd.elf
Source: sshd.elf, 5487.1.000055d327fc2000.000055d3280f0000.rw-.sdmp Binary or memory string: U!/etc/qemu-binfmt/arm
Source: sshd.elf, 5487.1.00007ffe590da000.00007ffe590fb000.rw-.sdmp Binary or memory string: qemu: %s: %s
Source: sshd.elf, 5487.1.00007ffe590da000.00007ffe590fb000.rw-.sdmp Binary or memory string: leqemu: %s: %s
Source: sshd.elf, 5487.1.000055d327fc2000.000055d3280f0000.rw-.sdmp Binary or memory string: Urg.qemu.gdb.arm.sys.regs">
Source: sshd.elf, 5487.1.000055d327fc2000.000055d3280f0000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/arm
Source: sshd.elf, 5487.1.00007ffe590da000.00007ffe590fb000.rw-.sdmp Binary or memory string: /usr/bin/qemu-arm
Source: sshd.elf, 5487.1.000055d327fc2000.000055d3280f0000.rw-.sdmp Binary or memory string: rg.qemu.gdb.arm.sys.regs">

No Screenshots

⊘No contacted IP infos

Contacted Domains

Name IP Active
daisy.ubuntu.com 162.213.35.25 true