Linux Analysis Report
x86.elf

Overview

General Information

Sample name: x86.elf
Analysis ID: 1541825
MD5: 6c5f14de57bc36a6fa22bbf554e8049f
SHA1: 6422fa0c77161c15298af285be511e5b3cef6e3c
SHA256: 78b479fc15b2171a97a082f840f4c130158ee5033ba933247eb4d98ab8fc4122
Tags: elfuser-abuse_ch
Infos:

Detection

Score: 52
Range: 0 - 100
Whitelisted: false

Signatures

Malicious sample detected (through community Yara rule)
Machine Learning detection for sample
ELF contains segments with high entropy indicating compressed/encrypted content
Sample contains only a LOAD segment without any section mappings
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
Yara signature match

Classification

AV Detection
barindex
Machine Learning detection for sample
Source: x86.elf Joe Sandbox ML: detected
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
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

System Summary
barindex
Malicious sample detected (through community Yara rule)
Source: 6209.1.0000000008048000.0000000008052000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_e6d75e6f Author: unknown
Source: 6209.1.0000000008048000.0000000008052000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_122ff2e6 Author: unknown
Source: 6209.1.0000000008048000.0000000008052000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_fa48b592 Author: unknown
Sample contains only a LOAD segment without any section mappings
Source: LOAD without section mappings Program segment: 0x8048000
Yara signature match
Source: 6209.1.0000000008048000.0000000008052000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_e6d75e6f reference_sample = 48b15093f33c18778724c48c34199a420be4beb0d794e36034097806e1521eb8, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = e99805e8917d6526031270b6da5c2f3cc1c8235fed1d47134835a107d0df497c, id = e6d75e6f-aa04-4767-8730-6909958044a7, last_modified = 2021-09-16
Source: 6209.1.0000000008048000.0000000008052000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_122ff2e6 reference_sample = c7dd999a033fa3edc1936785b87cd69ce2f5cac5a084ddfaf527a1094e718bc4, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 3c9ffd7537e30a21eefa6c174f801264b92a85a1bc73e34e6dc9e29f84658348, id = 122ff2e6-56e6-4aa8-a3ec-c19d31eb1f80, last_modified = 2021-09-16
Source: 6209.1.0000000008048000.0000000008052000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_fa48b592 reference_sample = c9e33befeec133720b3ba40bb3cd7f636aad80f72f324c5fe65ac7af271c49ee, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 8838d2752b310dbf7d12f6cf023244aaff4fdf5b55cf1e3b71843210df0fcf88, id = fa48b592-8d80-45af-a3e4-232695b8f5dd, last_modified = 2021-09-16
Source: classification engine Classification label: mal52.linELF@0/0@0/0
ELF contains segments with high entropy indicating compressed/encrypted content
Source: x86.elf Submission file: segment LOAD with 7.6812 entropy (max. 8.0)
Source: x86.elf Submission file: segment LOAD with 7.8626 entropy (max. 8.0)

No Screenshots

  • 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