Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1f0c21f419e4094…

MALICIOUS

PDF

40.3 KB Created: 2020-08-09 01:43:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ed696e7d6dd9e95ba2f3f3634bd39016 SHA-1: 1b6f465c4ff49c5b4ea3df2eea83712e968a1495 SHA-256: d1f0c21f419e40948e69e4fa798fc0d39952c045989e526fa06087c601c5f8ae
194 Risk Score

Malware Insights

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

The PDF contains a prominent link that redirects to a malicious URL, disguised as a 'schengen visa spain pdf' application. This is further supported by heuristics indicating a malicious redirector and a link farm. The ML classifier strongly flagged this PDF as malicious. The primary attack vector appears to be social engineering through a deceptive link.

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=application+for+schengen+visa+spain+pdf In PDF document text
    • http://files.bitsofbytes.co.uk/uploads/1/3/1/3/131380279/9849594.pdfIn PDF document text
    • http://files.mobileinstallationgroup.com/uploads/1/3/2/7/132740580/4707687.pdfIn PDF document text
    • http://muzujas.classicfilmworks.com/uploads/1/3/2/6/132681556/3805348.pdfIn PDF document text
    • http://files.meladyluna.com/uploads/1/3/1/1/131163667/gubipazu_bapinulofu_pozifiv_ferowaxasot.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/1/0440/6332/6358/files/sedokanixafufuzuwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4957/3784/files/79973954490.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6142/5814/files/spanish_occupation_in_the_philippines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8398/7096/files/26720966698.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5134/3269/files/riridubatu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4805/0586/files/common_stocks_and_uncommon_profits_and_other_writings.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99914628395.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5293/3021/files/88643153252.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1405/4300/files/63509027222.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5382/4677/files/gafijonefawinisafaragetev.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 6

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_off000060b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60B7 5464 bytes
SHA-256: 250f9ad175887428ab99263045b79a6f88a7047846f5c63a2f60ca371f2afabb
font_01_sfnt_off00007353.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7353 9680 bytes
SHA-256: 92e5f691426264794621e1aaea4a1b66642f9544e06adebacb239374fd05d574

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