Linux Analysis Report
zerarm7.elf

Overview

General Information

Sample name: zerarm7.elf
Analysis ID: 1580211
MD5: 52689fe0175d33c2c74dd160d9678af2
SHA1: 0cef55a07519795b60c54e8182d106744defb31c
SHA256: 4605224a780bc10bf3c3d8884432eb24689ce642bb6f84271e1db0c5a2137291
Tags: elfuser-abuse_ch
Infos:

Detection

Score: 56
Range: 0 - 100
Whitelisted: false

Signatures

Multi AV Scanner detection for submitted file
Connects to many ports of the same IP (likely port scanning)
Sends malformed DNS queries
Detected TCP or UDP traffic on non-standard ports
Sample contains strings indicative of BusyBox which embeds multiple Unix commands in a single executable
Sample has stripped symbol table
Sample listens on a socket
Uses the "uname" system call to query kernel version information (possible evasion)

Classification

AV Detection
barindex
Multi AV Scanner detection for submitted file
Source: zerarm7.elf Virustotal: Detection: 30% Perma Link
Source: zerarm7.elf ReversingLabs: Detection: 31%

Networking
barindex
Connects to many ports of the same IP (likely port scanning)
Source: global traffic TCP traffic: 154.216.16.250 ports 38241,1,2,3,4,8
Source: global traffic TCP traffic: 209.38.192.73 ports 38241,1,2,3,4,8
Sends malformed DNS queries
Source: global traffic DNS traffic detected: malformed DNS query: serisbot.geek. [malformed]
Detected TCP or UDP traffic on non-standard ports
Source: global traffic TCP traffic: 192.168.2.14:37092 -> 209.38.192.73:38241
Source: global traffic TCP traffic: 192.168.2.14:38410 -> 154.216.16.250:38241
Sample listens on a socket
Source: /tmp/zerarm7.elf (PID: 5552) Socket: 127.0.0.1:39148 Jump to behavior
Source: unknown UDP traffic detected without corresponding DNS query: 51.158.108.203
Source: unknown UDP traffic detected without corresponding DNS query: 81.169.136.222
Source: unknown UDP traffic detected without corresponding DNS query: 185.181.61.24
Source: unknown UDP traffic detected without corresponding DNS query: 152.53.15.127
Source: unknown UDP traffic detected without corresponding DNS query: 152.53.15.127
Source: unknown UDP traffic detected without corresponding DNS query: 81.169.136.222
Source: global traffic DNS traffic detected: DNS query: serisbot.geek
Source: global traffic DNS traffic detected: DNS query: serisontop.dyn
Source: global traffic DNS traffic detected: DNS query: serisbot.geek. [malformed]
Sample contains strings indicative of BusyBox which embeds multiple Unix commands in a single executable
Source: Initial sample String containing 'busybox' found: /bin/busybox echo -ne
Source: Initial sample String containing 'busybox' found: /bin/busybox echo -ne >> > .d
Sample has stripped symbol table
Source: ELF static info symbol of initial sample .symtab present: no
Source: classification engine Classification label: mal56.troj.linELF@0/0@6/0
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/zerarm7.elf (PID: 5552) Queries kernel information via 'uname': Jump to behavior
Source: zerarm7.elf, 5552.1.0000560b2f8c8000.0000560b2fa17000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/arm
Source: zerarm7.elf, 5552.1.00007fffb67ad000.00007fffb67ce000.rw-.sdmp Binary or memory string: /usr/bin/qemu-arm
Source: zerarm7.elf, 5552.1.0000560b2f8c8000.0000560b2fa17000.rw-.sdmp Binary or memory string: V!/etc/qemu-binfmt/arm
Source: zerarm7.elf, 5552.1.00007fffb67ad000.00007fffb67ce000.rw-.sdmp Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/zerarm7.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/zerarm7.elf
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
154.216.16.250
 serisontop.dyn Seychelles
135357 SKHT-ASShenzhenKatherineHengTechnologyInformationCo false
209.38.192.73
 serisbot.geek United States
7018 ATT-INTERNET4US false

Contacted Domains

Name IP Active
serisontop.dyn 154.216.16.250 true
serisbot.geek 209.38.192.73 true
serisbot.geek. [malformed] unknown unknown