Malicious PDF — malware analysis report

Static analysis result for SHA-256 109e44f6de544dd7…

MALICIOUS

PDF

34.3 KB Created: 2020-08-06 00:39:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 366d6020f9fa11b30e53d63676651596 SHA-1: d84ad542f042305c5c20aa54806c1e2f14298c6c SHA-256: 109e44f6de544dd7f6712d07404796cf084b13df4f435444215fb7d3ffaf3af8
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to appear as legitimate documents, but the primary link redirects to a known malicious redirector. The document body text, though heavily obfuscated, contains the URL that leads to the malicious redirector, suggesting an attempt to lure users to a phishing or malware distribution site. No scripts were extracted, but the PDF structure and embedded links strongly indicate a malicious intent.

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.ru/pify?keyword=casio+fx+991lax+manual+pdf In PDF document text
    • http://files.humblehandsfarm.com/uploads/1/3/0/9/130968956/koveselejazo.pdfIn PDF document text
    • http://files.agelessumedspa.net/uploads/1/3/1/8/131856706/jegolemepa.pdfIn PDF document text
    • http://files.wildlifeinfo.ca/uploads/1/3/0/8/130814121/da25c.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/1/0431/5866/7430/files/ejercicios_angulos_complementarios_y_suplementarios_6_primaria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/9102/2244/files/chalk_outline_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4276/5991/files/64026767948.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0491/1006/files/medesuvozobijap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7821/9944/files/ziribunobi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4603/3818/files/carbamazepine_davis_drug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ketotojugidumirazi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2004/1886/files/movuwavuzapazanafavopuwak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2970/7422/files/ridabubuworusaserasa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5823/3493/files/perez_reverte_la_reina_del_sur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8833/9361/files/52740670161.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 5

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_off00004922.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4922 5272 bytes
SHA-256: 7889eb41f10df6990cc9711bbb741a818d09061fa11cb0adbb37a85263233021
font_01_sfnt_off00005b08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B08 9912 bytes
SHA-256: e874d216ca9dfb87a777dd69d7297deea6788c3e3aae78b557fe7bdc1c40f21d

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