Malicious PDF — malware analysis report

Static analysis result for SHA-256 0090af7a9462e323…

MALICIOUS

PDF

78.1 KB Created: 2021-03-14 16:54:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 66545f1661685a72a2c7f65fd16770fc SHA-1: 3410a35ee315e635da1320c40125c08bad066e09 SHA-256: 0090af7a9462e323af847e0bd7ffd6e9b8b8bf5fb3c83e8e44da3f7e8c6718a6
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains heuristics indicating it's a phishing lure, specifically using an SEO redirector to disguise a download link. The embedded URL `https://mezovuduw.ru/wix?keyword=destiny+2+best+pve+weapons+season+of+worthy` is the primary indicator of this malicious intent. The ML classifier and ClamAV detection further confirm its malicious nature, classifying it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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 https://mezovuduw.ru/wix?keyword=destiny+2+best+pve+weapons+season+of+worthy PDF link annotation
    • http://birapemotafew.mygamesonline.org/42970274468.pdfIn PDF document text
    • http://mokugujumekov.sportsontheweb.net/que_es_el_arbol_de_decisiones.pdfIn PDF document text
    • http://tesuzaro.22web.org/the_book_thief_filetype.pdfIn PDF document text
    • https://lajexupizad.weebly.com/uploads/1/3/0/7/130775806/75d83.pdfIn PDF document text
    • https://soxigirotum.weebly.com/uploads/1/3/0/9/130969819/9fdf53d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://36c7e617-1221-4173-b726-d5bce2878801.filesusr.com/ugd/610d21_7f43bc6480494d21b371d1cd609bc8e6.pdf?index=trueIn PDF document text
    • http://zasagugidi.epizy.com/fox_lsat_logical_reasoning_encyclopedia.pdfIn PDF document text
    • https://s3.amazonaws.com/godewumazek/pipanuf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d57ea705-fa4a-4da9-8285-a57aa23cc170/the_greatest_salesman_in_the_world_by_og_mandino_summary.pdfIn PDF document text
    • http://pekomuvave.myartsonline.com/aldehydes_and_ketones_class_12_ncert.pdfIn PDF document text
    • http://ninamivekadod.epizy.com/convertir_documento_de_a_word_gratis_en_linea.pdfIn PDF document text
    • https://s3.amazonaws.com/vasofirida/48650369895.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/82e8f4ce-99a7-4082-a414-f811beb72867/finawodifuwabexeta.pdfIn PDF document text
    • http://pojozija.onlinewebshop.net/21090928850.pdfIn PDF document text
    • https://8650d040-a33d-467d-a608-6706f181f11b.filesusr.com/ugd/61b8bf_47656190df6d41759a4ec4bc49afcf18.pdf?index=trueIn PDF document text
    • http://kuparego.rf.gd/15696549724.pdfIn PDF document text
    • https://s3.amazonaws.com/vefagotoje/cassie_guide_scp_sl.pdfIn PDF document text
    • https://b615eccc-4413-4b1d-8109-ede925130a83.filesusr.com/ugd/0994f9_abe637d1c6334c8b8e9b4c2871056fc3.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/vetamedisoz/78462086723.pdfIn PDF document text
    • https://s3.amazonaws.com/xonobijikivo/6217503122.pdfIn 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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f41f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF41F 5480 bytes
SHA-256: e11ea4cae14c21269a81712c95be77ec83bc3c53bb3599cc0ab70b1bef51ad42
font_01_sfnt_off000106e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106E3 10492 bytes
SHA-256: 89aaee8d2165e2f7602cea09f86facbb124ed37668f04785cef15ed081557100

Open this report in the interactive analyzer, or submit your own file for analysis.