Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f74983b9d8f32ba…

MALICIOUS

PDF

77.4 KB Created: 2020-03-08 13:09:58 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2020-09-24
MD5: 97b1f1437b5dd84fc617c05202e47e40 SHA-1: 508d896ca72d9f936867ceebb62d32959fb6d5ec SHA-256: 7f74983b9d8f32ba0b9d7ecf39d304112d42db7194a6fe3145756e166e4f8f87
104 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to PDF files on unrelated domains, suggesting a link farm or redirection mechanism. The presence of a "download button" heuristic further supports the idea that the document is designed to trick users into clicking these links. While no scripts were explicitly extracted, the PDF structure and extensive external linking are indicative of a malicious document, likely a phishing or malware distribution lure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://adsl-63-204-18-26.benefitplans.org/uploads/1/3/0/7/130776304/130776304.html#ayyappa+swamy+harivarasanam+songs+in+telugu PDF link annotation
    • http://websiteofawesomness.com/uploads/1/3/0/6/130604049/joriseduguvagudid.pdfIn PDF document text
    • http://imagebysharon.com/uploads/1/3/0/2/130291350/wesikifekare-nedanedep-mumimulufok.pdfIn PDF document text
    • http://survivingmentalhealth.com/uploads/1/3/0/7/130775251/756129fca4604.pdfIn PDF document text
    • http://www.mugsysfreshroast.shop/uploads/1/3/0/6/130639093/lovofoferixemivif.pdfIn PDF document text
    • http://midfloridamedia.com/uploads/1/3/0/5/130588430/zanegap-mujebijo-xamijofatowo-milun.pdfIn PDF document text
    • http://organizingyourworld.co/uploads/1/3/0/5/130539678/cdfa537ab14.pdfIn PDF document text
    • http://www.jclayhurdle.com/uploads/1/3/0/3/130379336/wubanalofune-xosowidatusim.pdfIn PDF document text
    • http://canwalk.net/uploads/1/3/0/2/130272355/2809301.pdfIn PDF document text
    • http://mmarieboutique.com/uploads/1/3/0/6/130620921/tevozo-xoxasuso-tetuxo-melatenumuzaxid.pdfIn PDF document text
    • http://bamaagents.com/uploads/1/3/0/5/130551729/2670486.pdfIn PDF document text
    • http://www.youngatartmn.com/uploads/1/3/0/5/130540280/lusebejixab.pdfIn PDF document text
    • http://namelesstea.com/uploads/1/3/0/3/130379777/0f0e1ed1.pdfIn PDF document text
    • http://naturesblissjamaica.com/uploads/1/3/0/4/130476732/zexavalexowat_sedufijirojo.pdfIn PDF document text
    • http://msaimports.com/uploads/1/3/0/4/130488975/b2ccad2fe07035.pdfIn PDF document text
    • http://sassyscentsandbling.com/uploads/1/3/0/5/130540420/pigijav_jojup_pigosa.pdfIn PDF document text
    • http://mysticlyon.org/uploads/1/3/0/5/130588487/62b2a.pdfIn PDF document text
    • http://www.botanicalboutique.us/uploads/1/3/0/6/130604525/4211989.pdfIn PDF document text
    • http://mail.korinicolewilliams.com/uploads/1/3/0/9/130968912/f454fe0.pdfIn PDF document text
    • http://www.officinaimmobiliare.com/uploads/1/3/0/8/130814174/roguduxobo-xodotunex.pdfIn PDF document text
    • http://instrumentsofexpression.net/uploads/1/3/0/5/130539440/resuwofurog_dixudijiwafuzi_nixisavufetuwaf_gebejet.pdfIn PDF document text
    • http://mta-sts.amateurhorsesales.com/uploads/1/3/0/5/130539758/763215670867.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

Related samples 4

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_off000107c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107C3 7680 bytes
SHA-256: 11468a134de9c4370cbbf7de7fa9473e60ac345b32d4d7de704dd341575d0ead

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