Malicious PDF — malware analysis report

Static analysis result for SHA-256 796571cb89969446…

MALICIOUS

PDF

115.4 KB Created: 2020-08-02 09:56:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a492a03c584e081a22048da3277d52b2 SHA-1: e078d035f712b1dd368df8324188f9a27d1fe6c4 SHA-256: 796571cb899694469b8d660b0f3072daa45bc28f4e137e315f2f597407c45048
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic identifying a redirector to known malicious infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be the primary lure. This suggests the file is designed to redirect users to a malicious site, likely for phishing or malware distribution, leveraging a link farm for SEO purposes to increase visibility.

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=auditing+cases+an+interactive+learning+approach+pdf In PDF document text
    • http://files.terramutt.com/uploads/1/3/1/4/131407492/newesu.pdfIn PDF document text
    • http://files.ftbk.net/uploads/1/3/1/4/131453674/lebetub-tanenide-penuvor.pdfIn PDF document text
    • http://files.stephaniejanaina.com/uploads/1/3/0/7/130775257/e4dd5.pdfIn PDF document text
    • http://files.premierebasketball.com/uploads/1/3/0/7/130775658/e64deae95b2b.pdfIn PDF document text
    • http://files.scottishstevennyc.com/uploads/1/3/0/7/130739340/8830723bd01f6.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/1/0430/2651/4077/files/29309197875.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/duliwoledemovaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0643/5232/files/54305092976.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6559/7342/files/fazamesagariwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7852/4831/files/pojepodufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3853/8904/files/17701248398.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6042/8962/files/63720651942.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8380/9443/files/30379041083.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7129/9999/files/12010332210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7409/2196/files/33965896451.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3894/6966/files/tovidesunemajud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4438/7481/files/2013_kia_soul_owners_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9163/8934/files/minecraft_how_far_away_do_mobs_spawn.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 8

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_off000179ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x179AB 5464 bytes
SHA-256: 5309138a06d4eca61db02293d4c01356530b5ffa4f30ff486767f7c969205e5f
font_01_sfnt_off00018c49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18C49 16616 bytes
SHA-256: e32c4072c5401e03f3b1b871bf3d4c8dafef431e79e0a1120da3547f691e948f

Open this report in the interactive analyzer, or submit your own file for analysis.