Malicious PDF — malware analysis report

Static analysis result for SHA-256 49f1c2b65aa1b83f…

MALICIOUS

PDF

35.0 KB Created: 2020-08-02 06:45:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a34a434e037427407654161526cadc25 SHA-1: 99183f9fa3229777b9e616a6370977aafe7b09a8 SHA-256: 49f1c2b65aa1b83f3c99824be8fb08baee5d451708747d5dfbbe578f4ba36af0
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text referencing a 'Baofeng bf f8hp manual' and the malicious URL, suggesting a lure to trick users into visiting the redirector. The ML classifier also strongly flagged this PDF as malicious.

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=baofeng+bf+f8hp+manual In PDF document text
    • http://files.victoriajsmith.com/uploads/1/3/1/6/131606016/woduxe_rugadujeg_zabugujariroka.pdfIn PDF document text
    • http://files.425sqn.org/uploads/1/3/0/8/130814642/zotazaboma.pdfIn PDF document text
    • http://files.masteractorsbayarea.com/uploads/1/3/1/4/131406717/31338c188ce9957.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/1/0428/9835/8432/files/37144816260.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7777/1164/files/27417738465.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6345/2583/files/luwapave.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9222/9797/files/15401094642.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6650/7942/files/pegipepinomejibo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2287/4781/files/77481300127.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1392/2206/files/11648827025.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4803/4716/files/19877158137.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4071/0566/files/96896849126.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71062637782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9574/3907/files/furewenutolaregojizu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3729/3724/files/minefesowotidikifadavera.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_off0000491e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x491E 5424 bytes
SHA-256: 9c617b58b34c48c210759634bfed77527e7534899bfff43bc0644dfa059fdac9
font_01_sfnt_off00005b76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B76 10864 bytes
SHA-256: dd582b9fbfd5127afdc1a429adc2d5f12e3a4d48b48e8d476f2e6e0fdf524431

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