Malicious PDF — malware analysis report

Static analysis result for SHA-256 76ba5481550c2b64…

MALICIOUS

PDF

61.7 KB Created: 2020-08-08 00:40:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 90cc73a36c7fdde81e954fb00edc948b SHA-1: 5223d437154de479fc4b1388a74509267c5dc8bd SHA-256: 76ba5481550c2b646e62ba14d7fe6fd93af74b5c738625f5e57ede469e8dc934
194 Risk Score

Malware Insights

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

The PDF contains a deceptive title and numerous links, many pointing to a redirector service, suggesting a phishing or malware distribution attempt. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM indicate the document is designed to lead users to malicious infrastructure. While no scripts were explicitly extracted, the embedded URLs and the nature of the heuristics strongly suggest an intent to redirect users to potentially harmful content.

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.com/pify?keyword=simon+sinek+find+your+why+pdf In PDF document text
    • http://files.northvicgps.com/uploads/1/3/1/4/131437508/4d1bce.pdfIn PDF document text
    • http://files.mymslifestyle.com/uploads/1/3/2/3/132303270/panapepubomosi-ziwagedunetivuk-wisijudomimuv.pdfIn PDF document text
    • http://pifux.keephpbeautiful.org/uploads/1/3/2/6/132681670/177b1c7ff74ff.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/1/0439/8225/8334/files/baduralijobekasowuxetedit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84312174386.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3531/1775/files/pemifisevemaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4447/0933/files/kusovagizudijijolewefa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7583/6840/files/celebrity_endorsement_questionnaire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5714/3205/files/302759344.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9827/9841/files/bed_bath_and_beyond_mission_statement.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0796/5345/files/thyristor_controlled_rectifier.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8176/7841/files/allen_bradley_powerflex_40_manual_espaol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3066/5637/files/luzagowarononowoba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0057/8723/files/pupiposamokewajudarebozi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5899/5095/files/abecedario_y_numeros_en_ingles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5871/6054/files/59861840270.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000897c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x897C 2884 bytes
SHA-256: 77769ddb66f1f569e1f225f56e96586434f0e92948c522b1b6c42e45ba9c06e5
font_01_sfnt_off000093c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93C3 5400 bytes
SHA-256: e30ddce7170075dbdca00650ae4ca705acec007a64baa343e1afb56e61b717d9
font_02_sfnt_off0000a617.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA617 13368 bytes
SHA-256: 4db7d05abf6697afccdfd0f202e552dec3e224b7501d695574231a59be6f4440
font_03_sfnt_off0000d0bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0BD 16416 bytes
SHA-256: 4bf7462e787791ee30cced4e4a0065977ba460b587ec5e4d0bf31a1282398818