Malicious PDF — malware analysis report

Static analysis result for SHA-256 1499dcc61c00946d…

MALICIOUS

PDF

41.3 KB Created: 2020-08-09 06:54:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 27142a9236f49334070f67bfdc118701 SHA-1: 42e55e2ac006254495d7383b569165fa6f1826dc SHA-256: 1499dcc61c00946d1e26fee6eb8b3ba9f0f017d662a22e8648be62a5cd084478
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service, suggesting a link farm or phishing campaign. The primary redirector URL is associated with malicious activity, and the document body, though heavily obfuscated, contains a reference to the same redirector and a benign-looking Shopify URL. This indicates an attempt to trick users into downloading potentially malicious content or visiting malicious sites under the guise of a user manual.

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=digital+storage+oscilloscope+user+manual+pdf In PDF document text
    • http://dubijela.bergbows.net/uploads/1/3/0/8/130874359/fegadusutebu_vukulusom_bebesapokizu.pdfIn PDF document text
    • http://files.bhgmedia.com/uploads/1/3/1/4/131452959/692a2aef4f98.pdfIn PDF document text
    • http://files.bomrad.net/uploads/1/3/1/4/131437622/xigirefonibob.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/1/0431/7102/0957/files/zidevujaliwesisobagab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5332/5224/files/xufav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4437/1613/files/acgih_industrial_ventilation_manual_29th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9916/8673/files/83053898799.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2429/3796/files/dutafapok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4012/6614/files/fosevunizogopaposo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71860998709.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7152/8344/files/jevisizotape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6686/7362/files/the_collapse_of_the_third_republic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5271/9515/files/23836539392.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0085/5706/files/ladegagosapimomipefod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3603/3695/files/auditing_and_assurance_services_a_systematic_approach_10th_edition.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 2

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_off000061e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61E5 5476 bytes
SHA-256: 6f12d8bb62d75fd47c8128ab37712943c428349b5b99105da1e39a6a98ae6fa7
font_01_sfnt_off00007476.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7476 10472 bytes
SHA-256: 4515e4667f7b72f65600ddb5f09204956c6f7dd71db289ab11dd7e962ca2d3ec

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