Malicious PDF — malware analysis report

Static analysis result for SHA-256 411502f17fef5335…

MALICIOUS

PDF

61.2 KB Created: 2020-08-21 09:59:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 58a910459e634a8432d85d0267c0a2b7 SHA-1: 67f4bb3ba0d80ed4f9ea38093dfcd949dd256b56 SHA-256: 411502f17fef5335180abc9060bfccd370f33e49ac9ab5b8a0a8bc2676664d6f
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains a reference to this URL. The presence of a large number of external PDF links, many pointing to Shopify, suggests a link farm designed to obscure the ultimate destination. The primary malicious link is 'https://ttraff.com/pify?keyword=zend+avesta+em+portugues+pdf', which likely leads to a phishing page or malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 6

  • 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.
  • 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
  • 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.com/pify?keyword=zend+avesta+em+portugues+pdf In PDF document text
    • http://files.gardenofhealingmt.com/uploads/1/3/2/3/132302855/warozerakis.pdfIn PDF document text
    • http://files.michellewiebe.com/uploads/1/3/0/7/130739601/2245093.pdfIn PDF document text
    • http://wowezok.frhsbands.org/uploads/1/3/0/8/130814328/gevekix-suxegiba-tavasobonetoser-suraludiz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kuwuvovevikusezavufada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3971/8552/files/kavuguj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4402/8059/files/35530519212.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4470/8245/files/49015984229.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6558/0437/files/powerboss_pressure_washer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8076/0990/files/teorema_da_bissetriz_interna_exercicios.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2746/3324/files/91535267814.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/34888362351.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9201/7305/files/bryant_furnace_parts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9743/0941/files/square_root_of_98_in_decimal_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9506/4730/files/94437312194.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9568/7317/files/formulaire_vente_voiture.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 7

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_008_off0000c0af.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xC0AF 17712 bytes
SHA-256: 080830eaaa074ed5f9e8fa22ff5d7019082d44182ff07d44024a0f7465752db2
font_00_sfnt_off00005747.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5747 4260 bytes
SHA-256: 8bc0c710a8feb169367c89e811dfedbafbd38159b96a169fd2c6c688505784fd
font_01_sfnt_off00006671.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6671 5344 bytes
SHA-256: 4d4d24a19acc8862294879777dc2527d59ad0d8f6732724d53222e3b9127b191
font_02_sfnt_off0000788f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x788F 4060 bytes
SHA-256: 326db7afcde3a40933a15f505f2b3e9456295eb521faad5586f903c6f7ce5467
font_03_sfnt_off000087cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87CC 6472 bytes
SHA-256: 14ecd43aeb999e849de6c4430ecb8e83fec5c9045f3637fff34dbf3ad5c328a7
font_04_sfnt_off00009ca6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CA6 10728 bytes
SHA-256: 00eb64c8e0fb329ce6d7515d27c67545299bedceb1d93f8835a4dea86980c6a9
font_06_sfnt_off0000db1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB1C 2704 bytes
SHA-256: 479b17d4810e61cc5fa1856269950220096ab4b02147f3635ce6cc8c8f804296

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