Linux Analysis Report
na.elf

Overview

General Information

Sample name: na.elf
Analysis ID: 1528784
MD5: 95706d3c060e268d9ca433c37716b7ef
SHA1: f8eb5deaf8741efccc73872ab92af5c5138a13a9
SHA256: 36c7192d61362039f598b93052c6b08da3c2806fe7f9ce9a1e61fdb14c95c7c9
Tags: elfMiraiuser-abuse_ch
Infos:

Detection

Score: 56
Range: 0 - 100
Whitelisted: false

Signatures

Antivirus / Scanner detection for submitted sample
Multi AV Scanner detection for submitted file
Sample has stripped symbol table
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
Uses the "uname" system call to query kernel version information (possible evasion)

Classification

AV Detection
barindex
Antivirus / Scanner detection for submitted sample
Source: na.elf Avira: detected
Multi AV Scanner detection for submitted file
Source: na.elf ReversingLabs: Detection: 55%
Source: na.elf Virustotal: Detection: 61% Perma Link
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
Source: global traffic TCP traffic: 192.168.2.23:42836 -> 91.189.91.43:443
Source: global traffic TCP traffic: 192.168.2.23:42516 -> 109.202.202.202:80
Source: global traffic TCP traffic: 192.168.2.23:43928 -> 91.189.91.42:443
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown TCP traffic detected without corresponding DNS query: 109.202.202.202
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.42
Source: unknown TCP traffic detected without corresponding DNS query: 91.189.91.43
Source: unknown Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown Network traffic detected: HTTP traffic on port 42836 -> 443
Sample has stripped symbol table
Source: ELF static info symbol of initial sample .symtab present: no
Source: classification engine Classification label: mal56.linELF@0/0@0/0
Uses the "uname" system call to query kernel version information (possible evasion)
Source: /tmp/na.elf (PID: 6201) Queries kernel information via 'uname': Jump to behavior
Source: na.elf, 6201.1.000055968f019000.000055968f147000.rw-.sdmp Binary or memory string: U!/etc/qemu-binfmt/arm
Source: na.elf, 6201.1.00007fff03fd3000.00007fff03ff4000.rw-.sdmp Binary or memory string: qemu: %s: %s
Source: na.elf, 6201.1.00007fff03fd3000.00007fff03ff4000.rw-.sdmp Binary or memory string: leqemu: %s: %s
Source: na.elf, 6201.1.000055968f019000.000055968f147000.rw-.sdmp Binary or memory string: Urg.qemu.gdb.arm.sys.regs">
Source: na.elf, 6201.1.00007fff03fd3000.00007fff03ff4000.rw-.sdmp Binary or memory string: %@x86_64/usr/bin/qemu-arm/tmp/na.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/na.elf
Source: na.elf, 6201.1.000055968f019000.000055968f147000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/arm
Source: na.elf, 6201.1.00007fff03fd3000.00007fff03ff4000.rw-.sdmp Binary or memory string: /usr/bin/qemu-arm
Source: na.elf, 6201.1.000055968f019000.000055968f147000.rw-.sdmp Binary or memory string: rg.qemu.gdb.arm.sys.regs">
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
109.202.202.202
 unknown Switzerland
13030 INIT7CH false
91.189.91.43
 unknown United Kingdom
41231 CANONICAL-ASGB false
91.189.91.42
 unknown United Kingdom
41231 CANONICAL-ASGB false