Linux Analysis Report
.i.elf

Overview

General Information

Sample name: .i.elf
Analysis ID: 1542658
MD5: 648c45b97babf276dfaa690e64e69800
SHA1: 928aac4fbee72fb458b533ecaf98968d477cd006
SHA256: 6ec09f50f3b5974a198e519993d877131d8ffbba99dd3e3af3ce4fbf850b03e7
Tags: elfuser-abuse_ch
Infos:

Detection

Score: 48
Range: 0 - 100
Whitelisted: false

Signatures

Multi AV Scanner detection for submitted file
ELF contains segments with high entropy indicating compressed/encrypted content
Executes the "rm" command used to delete files or directories
Sample contains only a LOAD segment without any section mappings
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
Source: .i.elf Virustotal: Detection: 32% Perma Link
Source: .i.elf ReversingLabs: Detection: 52%
Source: global traffic TCP traffic: 192.168.2.23:43928 -> 91.189.91.42:443
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: 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 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
Source: LOAD without section mappings Program segment: 0x10000
Source: classification engine Classification label: mal48.linELF@0/0@0/0
Source: /usr/bin/dash (PID: 6226) Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.OcBkabXnC6 /tmp/tmp.ENXakVqvgt /tmp/tmp.a09PHFalJm Jump to behavior
Source: /usr/bin/dash (PID: 6235) Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.OcBkabXnC6 /tmp/tmp.ENXakVqvgt /tmp/tmp.a09PHFalJm Jump to behavior
Source: .i.elf Submission file: segment LOAD with 7.9931 entropy (max. 8.0)
Source: /tmp/.i.elf (PID: 6261) Queries kernel information via 'uname': Jump to behavior
Source: .i.elf, 6261.1.00007ffd4729d000.00007ffd472be000.rw-.sdmp Binary or memory string: x86_64/usr/bin/qemu-arm/tmp/.i.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/.i.elf
Source: .i.elf, 6261.1.0000560535bb3000.0000560535ce1000.rw-.sdmp Binary or memory string: /etc/qemu-binfmt/arm
Source: .i.elf, 6261.1.00007ffd4729d000.00007ffd472be000.rw-.sdmp Binary or memory string: /usr/bin/qemu-arm
Source: .i.elf, 6261.1.0000560535bb3000.0000560535ce1000.rw-.sdmp Binary or memory string: V!/etc/qemu-binfmt/arm
Source: .i.elf, 6261.1.00007ffd4729d000.00007ffd472be000.rw-.sdmp Binary or memory string: qemu: uncaught target signal 11 (Segmentation fault) - core dumped
  • No. of IPs < 25%
  • 25% < No. of IPs < 50%
  • 50% < No. of IPs < 75%
  • 75% < No. of IPs