Linux Analysis Report
zmap.x86_64.elf

Overview

General Information

Sample name: zmap.x86_64.elf
Analysis ID: 1546733
MD5: 60a3a6f6b7a3763026613349b5c3efff
SHA1: d14f57a36e2285c787bc816c2f5692865c58b50c
SHA256: f070eb3a251f518321a195e3b5b44cb2e0bcb6ab98025144e4b1ebdd0a56f376
Tags: elfuser-abuse_ch
Infos:

Detection

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

Signatures

Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Yara detected Okiru
Machine Learning detection for sample
Sample deletes itself
Sample has stripped symbol table
Sample listens on a socket
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
Yara signature match

Classification

AV Detection
barindex
Multi AV Scanner detection for submitted file
Source: zmap.x86_64.elf ReversingLabs: Detection: 47%
Machine Learning detection for sample
Source: zmap.x86_64.elf Joe Sandbox ML: detected
Sample listens on a socket
Source: /tmp/zmap.x86_64.elf (PID: 5447) Socket: 127.0.0.1:39148 Jump to behavior
Tries to connect to HTTP servers, but all servers are down (expired dropper behavior)
Source: global traffic TCP traffic: 192.168.2.13:48202 -> 185.125.190.26:443
Source: unknown TCP traffic detected without corresponding DNS query: 185.125.190.26
Source: unknown TCP traffic detected without corresponding DNS query: 185.125.190.26
Source: unknown UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: unknown UDP traffic detected without corresponding DNS query: 1.1.1.1
Source: global traffic DNS traffic detected: DNS query: daisy.ubuntu.com
Source: unknown Network traffic detected: HTTP traffic on port 48202 -> 443

System Summary
barindex
Malicious sample detected (through community Yara rule)
Source: zmap.x86_64.elf, type: SAMPLE Matched rule: Linux_Trojan_Gafgyt_9e9530a7 Author: unknown
Source: zmap.x86_64.elf, type: SAMPLE Matched rule: Linux_Trojan_Gafgyt_807911a2 Author: unknown
Source: zmap.x86_64.elf, type: SAMPLE Matched rule: Linux_Trojan_Gafgyt_d4227dbf Author: unknown
Source: zmap.x86_64.elf, type: SAMPLE Matched rule: Linux_Trojan_Gafgyt_d996d335 Author: unknown
Source: zmap.x86_64.elf, type: SAMPLE Matched rule: Linux_Trojan_Gafgyt_620087b9 Author: unknown
Source: zmap.x86_64.elf, type: SAMPLE Matched rule: Linux_Trojan_Gafgyt_33b4111a Author: unknown
Source: zmap.x86_64.elf, type: SAMPLE Matched rule: Linux_Trojan_Mirai_520deeb8 Author: unknown
Source: zmap.x86_64.elf, type: SAMPLE Matched rule: Linux_Trojan_Mirai_6a77af0f Author: unknown
Source: zmap.x86_64.elf, type: SAMPLE Matched rule: Linux_Trojan_Mirai_01e4a728 Author: unknown
Source: zmap.x86_64.elf, type: SAMPLE Matched rule: Linux_Trojan_Mirai_e0cf29e2 Author: unknown
Source: 5447.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_9e9530a7 Author: unknown
Source: 5447.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_807911a2 Author: unknown
Source: 5447.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_d4227dbf Author: unknown
Source: 5447.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_d996d335 Author: unknown
Source: 5447.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_620087b9 Author: unknown
Source: 5447.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_33b4111a Author: unknown
Source: 5447.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_520deeb8 Author: unknown
Source: 5447.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_6a77af0f Author: unknown
Source: 5447.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_01e4a728 Author: unknown
Source: 5447.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_e0cf29e2 Author: unknown
Sample has stripped symbol table
Source: ELF static info symbol of initial sample .symtab present: no
Yara signature match
Source: zmap.x86_64.elf, type: SAMPLE Matched rule: Linux_Trojan_Gafgyt_9e9530a7 reference_sample = 01da73e0d425b4d97c5ad75c49657f95618b394d09bd6be644eb968a3b894961, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = d6ad6512051e87c8c35dc168d82edd071b122d026dce21d39b9782b3d6a01e50, id = 9e9530a7-ad4d-4a44-b764-437b7621052f, last_modified = 2021-09-16
Source: zmap.x86_64.elf, type: SAMPLE Matched rule: Linux_Trojan_Gafgyt_807911a2 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = f409037091b7372f5a42bbe437316bd11c655e7a5fe1fcf83d1981cb5c4a389f, id = 807911a2-f6ec-4e65-924f-61cb065dafc6, last_modified = 2021-09-16
Source: zmap.x86_64.elf, type: SAMPLE Matched rule: Linux_Trojan_Gafgyt_d4227dbf reference_sample = 01da73e0d425b4d97c5ad75c49657f95618b394d09bd6be644eb968a3b894961, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = 58c4b1d4d167876b64cfa10f609911a80284180e4db093917fea16fae8ccd4e3, id = d4227dbf-6ab4-4637-a6ba-0e604acaafb4, last_modified = 2021-09-16
Source: zmap.x86_64.elf, type: SAMPLE Matched rule: Linux_Trojan_Gafgyt_d996d335 reference_sample = b511eacd4b44744c8cf82d1b4a9bc6f1022fe6be7c5d17356b171f727ddc6eda, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = e9ccb8412f32187c309b0e9afcc3a6da21ad2f1ffa251c27f9f720ccb284e3ac, id = d996d335-e049-4052-bf36-6cd07c911a8b, last_modified = 2021-09-16
Source: zmap.x86_64.elf, type: SAMPLE Matched rule: Linux_Trojan_Gafgyt_620087b9 reference_sample = 01da73e0d425b4d97c5ad75c49657f95618b394d09bd6be644eb968a3b894961, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = 06cd7e6eb62352ec2ccb9ed48e58c0583c02fefd137cd048d053ab30b5330307, id = 620087b9-c87d-4752-89e8-ca1c16486b28, last_modified = 2021-09-16
Source: zmap.x86_64.elf, type: SAMPLE Matched rule: Linux_Trojan_Gafgyt_33b4111a reference_sample = 01da73e0d425b4d97c5ad75c49657f95618b394d09bd6be644eb968a3b894961, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = 9c3b63b9a0f54006bae12abcefdb518904a85f78be573f0780f0a265b12d2d6e, id = 33b4111a-e59e-48db-9d74-34ca44fcd9f5, last_modified = 2021-09-16
Source: zmap.x86_64.elf, type: SAMPLE Matched rule: Linux_Trojan_Mirai_520deeb8 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = f4dfd1d76e07ff875eedfe0ef4f861bee1e4d8e66d68385f602f29cc35e30cca, id = 520deeb8-cbc0-4225-8d23-adba5e040471, last_modified = 2021-09-16
Source: zmap.x86_64.elf, type: SAMPLE Matched rule: Linux_Trojan_Mirai_6a77af0f os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 4e436f509e7e732e3d0326bcbdde555bba0653213ddf31b43cfdfbe16abb0016, id = 6a77af0f-31fa-4793-82aa-10b065ba1ec0, last_modified = 2021-09-16
Source: zmap.x86_64.elf, type: SAMPLE Matched rule: Linux_Trojan_Mirai_01e4a728 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = d90477364982bdc6cd22079c245d866454475749f762620273091f2fab73c196, id = 01e4a728-7c1c-479b-aed0-cb76d64dbb02, last_modified = 2021-09-16
Source: zmap.x86_64.elf, type: SAMPLE Matched rule: Linux_Trojan_Mirai_e0cf29e2 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 3f124c3c9f124264dfbbcca1e4b4d7cfcf3274170d4bf8966b6559045873948f, id = e0cf29e2-88d7-4aa4-b60a-c24626f2b246, last_modified = 2021-09-16
Source: 5447.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_9e9530a7 reference_sample = 01da73e0d425b4d97c5ad75c49657f95618b394d09bd6be644eb968a3b894961, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = d6ad6512051e87c8c35dc168d82edd071b122d026dce21d39b9782b3d6a01e50, id = 9e9530a7-ad4d-4a44-b764-437b7621052f, last_modified = 2021-09-16
Source: 5447.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_807911a2 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = f409037091b7372f5a42bbe437316bd11c655e7a5fe1fcf83d1981cb5c4a389f, id = 807911a2-f6ec-4e65-924f-61cb065dafc6, last_modified = 2021-09-16
Source: 5447.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_d4227dbf reference_sample = 01da73e0d425b4d97c5ad75c49657f95618b394d09bd6be644eb968a3b894961, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = 58c4b1d4d167876b64cfa10f609911a80284180e4db093917fea16fae8ccd4e3, id = d4227dbf-6ab4-4637-a6ba-0e604acaafb4, last_modified = 2021-09-16
Source: 5447.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_d996d335 reference_sample = b511eacd4b44744c8cf82d1b4a9bc6f1022fe6be7c5d17356b171f727ddc6eda, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = e9ccb8412f32187c309b0e9afcc3a6da21ad2f1ffa251c27f9f720ccb284e3ac, id = d996d335-e049-4052-bf36-6cd07c911a8b, last_modified = 2021-09-16
Source: 5447.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_620087b9 reference_sample = 01da73e0d425b4d97c5ad75c49657f95618b394d09bd6be644eb968a3b894961, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = 06cd7e6eb62352ec2ccb9ed48e58c0583c02fefd137cd048d053ab30b5330307, id = 620087b9-c87d-4752-89e8-ca1c16486b28, last_modified = 2021-09-16
Source: 5447.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Gafgyt_33b4111a reference_sample = 01da73e0d425b4d97c5ad75c49657f95618b394d09bd6be644eb968a3b894961, os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Gafgyt, fingerprint = 9c3b63b9a0f54006bae12abcefdb518904a85f78be573f0780f0a265b12d2d6e, id = 33b4111a-e59e-48db-9d74-34ca44fcd9f5, last_modified = 2021-09-16
Source: 5447.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_520deeb8 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = f4dfd1d76e07ff875eedfe0ef4f861bee1e4d8e66d68385f602f29cc35e30cca, id = 520deeb8-cbc0-4225-8d23-adba5e040471, last_modified = 2021-09-16
Source: 5447.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_6a77af0f os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 4e436f509e7e732e3d0326bcbdde555bba0653213ddf31b43cfdfbe16abb0016, id = 6a77af0f-31fa-4793-82aa-10b065ba1ec0, last_modified = 2021-09-16
Source: 5447.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_01e4a728 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = d90477364982bdc6cd22079c245d866454475749f762620273091f2fab73c196, id = 01e4a728-7c1c-479b-aed0-cb76d64dbb02, last_modified = 2021-09-16
Source: 5447.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY Matched rule: Linux_Trojan_Mirai_e0cf29e2 os = linux, severity = x86, creation_date = 2021-01-12, scan_context = file, memory, license = Elastic License v2, threat_name = Linux.Trojan.Mirai, fingerprint = 3f124c3c9f124264dfbbcca1e4b4d7cfcf3274170d4bf8966b6559045873948f, id = e0cf29e2-88d7-4aa4-b60a-c24626f2b246, last_modified = 2021-09-16
Source: classification engine Classification label: mal72.troj.evad.linELF@0/0@2/0

Hooking and other Techniques for Hiding and Protection
barindex
Sample deletes itself
Source: /tmp/zmap.x86_64.elf (PID: 5447) File: /tmp/zmap.x86_64.elf Jump to behavior

Stealing of Sensitive Information
barindex
Yara detected Okiru
Source: Yara match File source: zmap.x86_64.elf, type: SAMPLE
Source: Yara match File source: 5447.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: zmap.x86_64.elf PID: 5447, type: MEMORYSTR

Remote Access Functionality
barindex
Yara detected Okiru
Source: Yara match File source: zmap.x86_64.elf, type: SAMPLE
Source: Yara match File source: 5447.1.0000000000400000.0000000000411000.r-x.sdmp, type: MEMORY
Source: Yara match File source: Process Memory Space: zmap.x86_64.elf PID: 5447, type: MEMORYSTR

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
185.125.190.26
 unknown United Kingdom
41231 CANONICAL-ASGB false

Contacted Domains

Name IP Active
daisy.ubuntu.com 162.213.35.24 true