Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b6d8215c23c4bd1…

MALICIOUS

PDF

40.9 KB Created: 2020-05-21 20:50:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-24
MD5: 75156e1721c47c2f293364a322bac490 SHA-1: 00ce8b3c074fdc1cf21a851be092bef0707bd3d0 SHA-256: 8b6d8215c23c4bd1c3a5a55185ebc5f37aa18ddbfe75708fdfff5aafc2500495
96 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1566.001 Spearphishing Attachment T1566.002 Spearphishing Link

The PDF file contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links likely serve to manipulate search engine results or redirect users to malicious websites. The document body contains garbled text and embedded URLs, further supporting the malicious intent. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://encore00037.voyagerwebsites.com/uploads/1/3/1/4/131409841/131409841.html#elex+orik+verraten PDF link annotation
    • http://thebackwardvendor.shop/uploads/1/3/0/6/130603834/paxuzirixewoga.pdfIn PDF document text
    • http://diversify.nu/uploads/1/3/1/3/131398359/ddee4.pdfIn PDF document text
    • http://epaat.net/uploads/1/3/0/5/130543787/3b900.pdfIn PDF document text
    • http://casabahiahotelresort.com/uploads/1/3/0/3/130379409/56e633cbb60f6d7.pdfIn PDF document text
    • http://gl-or-yous.com/uploads/1/3/1/3/131383750/c4a49d570.pdfIn PDF document text
    • http://fionawatsonca.com/uploads/1/3/0/6/130621303/sixijero.pdfIn PDF document text
    • http://ijoymall.com/uploads/1/3/1/8/131871726/zuferosuzufo_xerowosofa_tijetosefem.pdfIn PDF document text
    • http://ivyscleaningservices.com/uploads/1/3/0/6/130620852/3736a17d539007.pdfIn PDF document text
    • http://tiptopbuildingandremodel.com/uploads/1/3/1/4/131407565/gozudiv_kadata_rixavigaxut.pdfIn PDF document text
    • http://funcoloringthings.com/uploads/1/3/1/0/131070799/f0efed4dfe10455.pdfIn PDF document text
    • http://rhirebllion.com/uploads/1/3/0/3/130323210/regomewabuver.pdfIn PDF document text
    • http://mysimplycleanutah.com/uploads/1/3/1/0/131071220/rofegabogujaki.pdfIn PDF document text
    • http://sxbranch.com/uploads/1/3/1/4/131437331/texetuwodenowuri.pdfIn PDF document text
    • http://resultsmasterycoaching.net/uploads/1/3/0/6/130621165/gedujotabumodo-fimebe-mujonozavodiful.pdfIn PDF document text
    • http://lpdecoracoesprovencais.com/uploads/1/3/1/3/131398268/selidopoguwexofo.pdfIn PDF document text
    • http://michaelpamram.com/uploads/1/3/0/5/130550760/jusezekadowagi.pdfIn PDF document text
    • http://huffnpuffpaddling.com/uploads/1/3/1/0/131070238/rupadijewo_dudup.pdfIn PDF document text
    • http://laughtonart.com/uploads/1/3/0/2/130289782/neren-lusifosuri-wiwosoguvizin.pdfIn PDF document text
    • http://alexhowarthpt.com/uploads/1/3/0/5/130590122/c76a4.pdfIn PDF document text
    • http://justhavinghersay.net/uploads/1/3/1/6/131607005/marefinirewalabavoze.pdfIn PDF document text
    • http://katelynblinn.com/uploads/1/3/0/4/130489230/tedem_tiruzovegubom_bewazoxapagel.pdfIn PDF document text
    • http://quotebyty.com/uploads/1/3/0/8/130874378/kanikuxizelif.pdfIn PDF document text
    • http://tamasheqgeneration.com/uploads/1/3/1/4/131453329/4326118.pdfIn PDF document text
    • http://sacwebdesignagency.com/uploads/1/3/1/6/131606011/safesuni.pdfIn PDF document text
    • http://kodiservicesltd.com/uploads/1/3/0/9/130969824/7d3959e58.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000725d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x725D 10904 bytes
SHA-256: b1ecb2b442f6dc4e7f9c145403f25a59671c1d747aa8c837e8f9213cd63f3afb

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