Linux Analysis Report
x.rar.elf

Overview

General Information

Sample name: x.rar.elf
Analysis ID: 1546386
MD5: b2fe01244a17f9cc77840e52cf249f08
SHA1: f648b6501cdba946dbf3cc93a714a0051ef22f99
SHA256: 5ff891c9c6c342fbe6e308f688b71dc289eb7ececf40f73364e2792a714913c6
Tags: elfuser-abuse_ch
Infos:

Detection

Xmrig
Score: 72
Range: 0 - 100
Whitelisted: false

Signatures

Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Xmrig cryptocurrency miner
Found strings related to Crypto-Mining
Machine Learning detection for sample
Executes the "rm" command used to delete files or directories
Yara signature match

Classification

AV Detection
barindex
Multi AV Scanner detection for submitted file
Source: x.rar.elf ReversingLabs: Detection: 31%
Machine Learning detection for sample
Source: x.rar.elf Joe Sandbox ML: detected

Bitcoin Miner
barindex
Yara detected Xmrig cryptocurrency miner
Source: Yara match File source: x.rar.elf, type: SAMPLE
Found strings related to Crypto-Mining
Source: x.rar.elf String found in binary or memory: stratum+ssl://randomx.xmrig.com:443
Source: x.rar.elf String found in binary or memory: cryptonight/0
Source: x.rar.elf String found in binary or memory: -o, --url=URL URL of mining server
Source: x.rar.elf String found in binary or memory: stratum+tcp://
Source: x.rar.elf String found in binary or memory: Usage: xmrig [OPTIONS]
Source: x.rar.elf String found in binary or memory: XMRig 6.18.1
Source: unknown HTTPS traffic detected: 54.171.230.55:443 -> 192.168.2.23:33606 version: TLS 1.2
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: 54.171.230.55
Source: unknown TCP traffic detected without corresponding DNS query: 54.171.230.55
Source: unknown TCP traffic detected without corresponding DNS query: 54.171.230.55
Source: unknown TCP traffic detected without corresponding DNS query: 54.171.230.55
Source: unknown TCP traffic detected without corresponding DNS query: 54.171.230.55
Source: unknown TCP traffic detected without corresponding DNS query: 54.171.230.55
Source: unknown TCP traffic detected without corresponding DNS query: 54.171.230.55
Source: unknown TCP traffic detected without corresponding DNS query: 54.171.230.55
Source: unknown TCP traffic detected without corresponding DNS query: 54.171.230.55
Source: unknown TCP traffic detected without corresponding DNS query: 54.171.230.55
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: x.rar.elf String found in binary or memory: https://xmrig.com/benchmark/%s
Source: x.rar.elf String found in binary or memory: https://xmrig.com/docs/algorithms
Source: x.rar.elf String found in binary or memory: https://xmrig.com/wizard
Source: x.rar.elf String found in binary or memory: https://xmrig.com/wizard%s
Source: unknown Network traffic detected: HTTP traffic on port 443 -> 33606
Source: unknown Network traffic detected: HTTP traffic on port 43928 -> 443
Source: unknown Network traffic detected: HTTP traffic on port 33606 -> 443
Source: unknown Network traffic detected: HTTP traffic on port 42836 -> 443
Source: unknown HTTPS traffic detected: 54.171.230.55:443 -> 192.168.2.23:33606 version: TLS 1.2

System Summary
barindex
Malicious sample detected (through community Yara rule)
Source: x.rar.elf, type: SAMPLE Matched rule: Linux_Trojan_Pornoasset_927f314f Author: unknown
Source: x.rar.elf, type: SAMPLE Matched rule: MacOS_Cryptominer_Xmrig_241780a1 Author: unknown
Yara signature match
Source: x.rar.elf, type: SAMPLE Matched rule: Linux_Trojan_Pornoasset_927f314f reference_sample = d653598df857535c354ba21d96358d4767d6ada137ee32ce5eb4972363b35f93, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Pornoasset, fingerprint = 7214d3132fc606482e3f6236d291082a3abc0359c80255048045dba6e60ec7bf, id = 927f314f-2cbb-4f87-b75c-9aa5ef758599, last_modified = 2021-09-16
Source: x.rar.elf, type: SAMPLE Matched rule: MacOS_Cryptominer_Xmrig_241780a1 reference_sample = 2e94fa6ac4045292bf04070a372a03df804fa96c3b0cb4ac637eeeb67531a32f, os = macos, severity = x86, creation_date = 2021-09-30, scan_context = file, memory, license = Elastic License v2, threat_name = MacOS.Cryptominer.Xmrig, fingerprint = be9c56f18e0f0bdc8c46544039b9cb0bbba595c1912d089b2bcc7a7768ac04a8, id = 241780a1-ad50-4ded-b85a-26339ae5a632, last_modified = 2021-10-25
Source: classification engine Classification label: mal72.mine.linELF@0/0@0/0
Executes the "rm" command used to delete files or directories
Source: /usr/bin/dash (PID: 6259) Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.dAWMy7umgP /tmp/tmp.AJJQBzrGT2 /tmp/tmp.ySOq9iUnPf Jump to behavior
Source: /usr/bin/dash (PID: 6268) Rm executable: /usr/bin/rm -> rm -f /tmp/tmp.dAWMy7umgP /tmp/tmp.AJJQBzrGT2 /tmp/tmp.ySOq9iUnPf Jump to behavior

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
54.171.230.55
 unknown United States
16509 AMAZON-02US false
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