Malicious PDF — malware analysis report

Static analysis result for SHA-256 0be33dda471d021d…

MALICIOUS

PDF

49.6 KB Created: 2020-08-24 23:53:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 68601775c87173d390f2d62b93f70976 SHA-1: 41289b64ef03d4f3c59224d4c6e64de11db3751d SHA-256: 0be33dda471d021d1f2faf4a66575dbf58939123d2a37220194423745cbd9b4f
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service known for malicious activity. The document body, though heavily obfuscated, contains a URL that appears to be part of a lure for 'marriage biodata pdf free'. The presence of a malicious redirector and a large number of external links suggests an attempt to drive traffic to malicious or spam sites, likely as part of a phishing or SEO spam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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.
  • 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://ttraff.cc/pify?keyword=marriage+biodata+pdf+free In PDF document text
    • http://files.mykmad.com/uploads/1/3/1/8/131856330/8fcd75.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8079/4790/files/tifiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0466/2974/8901/files/baana_kaathadi_ringtones_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0740/9310/files/fogabatadaxunaleni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9179/5873/files/band_of_brothers_season_1_complete.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1538/6789/files/84016103899.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2666/8952/files/60033056784.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0003/7527/files/mosenovapuxavemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8037/5710/files/3359354977.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3876/0342/files/vuzejo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4658/3976/files/ailanthus_excelsa.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

Related samples 3

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008579.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8579 5144 bytes
SHA-256: 6ab57dc2e6bba584cfed8454a47d675a92f62629a90f18f32babd979307835ff
font_01_sfnt_off0000970a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x970A 10212 bytes
SHA-256: b1d36f49bba61e522ce969f2d7fac9361bf81ef0f0c974b1bd20a302f1bd7e71

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