Linux Analysis Report
sXX43D0nfY.elf

Overview

General Information

Sample name: sXX43D0nfY.elf
renamed because original name is a hash value
Original sample name: d37bfd90fdaab04d1d0b4554675ed5e4.elf
Analysis ID: 1532753
MD5: d37bfd90fdaab04d1d0b4554675ed5e4
SHA1: 2623207eb249c78587abd85b00d9fcb6df790021
SHA256: 037444b2dc5e4c16779155f29b64ca34262c9476f800be2e2c6e43e406ed10ad
Tags: 32elfintel
Infos:

Detection

Score: 72
Range: 0 - 100
Whitelisted: false

Signatures

Antivirus / Scanner detection for submitted sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Machine Learning detection for sample
Opens /proc/net/* files useful for finding connected devices and routers
Detected TCP or UDP traffic on non-standard ports
Sample contains strings that are user agent strings indicative of HTTP manipulation
Sample has stripped symbol table
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
Yara signature match

Classification

AV Detection
barindex
Antivirus / Scanner detection for submitted sample
Source: sXX43D0nfY.elf Avira: detected
Multi AV Scanner detection for submitted file
Source: sXX43D0nfY.elf ReversingLabs: Detection: 55%
Machine Learning detection for sample
Source: sXX43D0nfY.elf Joe Sandbox ML: detected

Spreading
barindex
Opens /proc/net/* files useful for finding connected devices and routers
Source: /tmp/sXX43D0nfY.elf (PID: 6237) Opens: /proc/net/route Jump to behavior
Detected TCP or UDP traffic on non-standard ports
Source: global traffic TCP traffic: 192.168.2.23:43810 -> 93.123.85.176:3074
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: 93.123.85.176
Source: unknown TCP traffic detected without corresponding DNS query: 93.123.85.176
Source: unknown TCP traffic detected without corresponding DNS query: 93.123.85.176
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: 93.123.85.176
Source: unknown TCP traffic detected without corresponding DNS query: 93.123.85.176
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: 93.123.85.176
Source: unknown TCP traffic detected without corresponding DNS query: 93.123.85.176
Source: unknown TCP traffic detected without corresponding DNS query: 93.123.85.176
Source: unknown TCP traffic detected without corresponding DNS query: 93.123.85.176
Source: unknown TCP traffic detected without corresponding DNS query: 93.123.85.176
Source: unknown TCP traffic detected without corresponding DNS query: 93.123.85.176
Source: unknown TCP traffic detected without corresponding DNS query: 93.123.85.176
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: sXX43D0nfY.elf, type: SAMPLE Matched rule: Linux_Trojan_Mirai_389ee3e9 Author: unknown
Source: sXX43D0nfY.elf, type: SAMPLE Matched rule: Linux_Trojan_Mirai_cc93863b Author: unknown
Source: sXX43D0nfY.elf, type: SAMPLE Matched rule: Linux_Trojan_Mirai_8aa7b5d3 Author: unknown
Source: 6238.1.0000000008048000.0000000008054000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_389ee3e9 Author: unknown
Source: 6238.1.0000000008048000.0000000008054000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_cc93863b Author: unknown
Source: 6238.1.0000000008048000.0000000008054000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_8aa7b5d3 Author: unknown
Source: 6237.1.0000000008048000.0000000008054000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_389ee3e9 Author: unknown
Source: 6237.1.0000000008048000.0000000008054000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_cc93863b Author: unknown
Source: 6237.1.0000000008048000.0000000008054000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_8aa7b5d3 Author: unknown
Sample has stripped symbol table
Source: ELF static info symbol of initial sample .symtab present: no
Yara signature match
Source: sXX43D0nfY.elf, type: SAMPLE Matched rule: Linux_Trojan_Mirai_389ee3e9 reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 59f2359dc1f41d385d639d157b4cd9fc73d76d8abb7cc09d47632bb4c9a39e6e, id = 389ee3e9-70c1-4c93-a999-292cf6ff1652, last_modified = 2022-01-26
Source: sXX43D0nfY.elf, type: SAMPLE Matched rule: Linux_Trojan_Mirai_cc93863b reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = f3ecd30f0b511a8e92cfa642409d559e7612c3f57a1659ca46c77aca809a00ac, id = cc93863b-1050-40ba-9d02-5ec9ce6a3a28, last_modified = 2022-01-26
Source: sXX43D0nfY.elf, type: SAMPLE Matched rule: Linux_Trojan_Mirai_8aa7b5d3 reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 02a2c18c362df4b1fceb33f3b605586514ba9a00c7afedf71c04fa54d8146444, id = 8aa7b5d3-e1eb-4b55-b36a-0d3a242c06e9, last_modified = 2022-01-26
Source: 6238.1.0000000008048000.0000000008054000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_389ee3e9 reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 59f2359dc1f41d385d639d157b4cd9fc73d76d8abb7cc09d47632bb4c9a39e6e, id = 389ee3e9-70c1-4c93-a999-292cf6ff1652, last_modified = 2022-01-26
Source: 6238.1.0000000008048000.0000000008054000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_cc93863b reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = f3ecd30f0b511a8e92cfa642409d559e7612c3f57a1659ca46c77aca809a00ac, id = cc93863b-1050-40ba-9d02-5ec9ce6a3a28, last_modified = 2022-01-26
Source: 6238.1.0000000008048000.0000000008054000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_8aa7b5d3 reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 02a2c18c362df4b1fceb33f3b605586514ba9a00c7afedf71c04fa54d8146444, id = 8aa7b5d3-e1eb-4b55-b36a-0d3a242c06e9, last_modified = 2022-01-26
Source: 6237.1.0000000008048000.0000000008054000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_389ee3e9 reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 59f2359dc1f41d385d639d157b4cd9fc73d76d8abb7cc09d47632bb4c9a39e6e, id = 389ee3e9-70c1-4c93-a999-292cf6ff1652, last_modified = 2022-01-26
Source: 6237.1.0000000008048000.0000000008054000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_cc93863b reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = f3ecd30f0b511a8e92cfa642409d559e7612c3f57a1659ca46c77aca809a00ac, id = cc93863b-1050-40ba-9d02-5ec9ce6a3a28, last_modified = 2022-01-26
Source: 6237.1.0000000008048000.0000000008054000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_8aa7b5d3 reference_sample = 5217f2a46cb93946e04ab00e385ad0fe0a2844b6ea04ef75ee9187aac3f3d52f, os = linux, severity = x86, creation_date = 2022-01-05, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 02a2c18c362df4b1fceb33f3b605586514ba9a00c7afedf71c04fa54d8146444, id = 8aa7b5d3-e1eb-4b55-b36a-0d3a242c06e9, last_modified = 2022-01-26
Source: classification engine Classification label: mal72.spre.linELF@0/0@0/0
Sample contains strings that are user agent strings indicative of HTTP manipulation
Source: Initial sample User agent string found: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36
Source: Initial sample User agent string found: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.90 Safari/537.36
Source: Initial sample User agent string found: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.157 Safari/537.36
Source: Initial sample User agent string found: Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.71 Safari/537.36
Source: Initial sample User agent string found: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36
Source: Initial sample User agent string found: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36
Source: Initial sample User agent string found: Mozilla/5.0 (Windows NT 5.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.90 Safari/537.36

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
93.123.85.176
 unknown Bulgaria
43561 NET1-ASBG 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