Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7d434492ed08aa1…

MALICIOUS

PDF

41.9 KB Created: 2020-08-18 22:26:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 28ef45fa9dd35f7501b25d748934450e SHA-1: 84b1e4845f9410a291184d6854ba10f335565838 SHA-256: c7d434492ed08aa1591bdd090d7cfabdb38702d40bbd0269ce22e4ce055195bd
202 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, identified as a PDF link farm. One critical heuristic indicates a link to known malicious redirector infrastructure. The document body, though partially corrupted, contains text suggesting a lure for a 'free boarding pass template invitation', combined with a visual download button heuristic. This suggests the PDF's primary purpose is to trick users into clicking malicious links, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=free+boarding+pass+template+invitation In PDF document text
    • http://jifikexo.redrootacupuncture.com/uploads/1/3/2/6/132681579/c4877c1d.pdfIn PDF document text
    • http://files.graniteexpomn.com/uploads/1/3/1/8/131871390/jegufug_fetepokatobe_butevibije.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/1/0427/9864/5404/files/slave_maker_game.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0459/1254/files/fodejavadifopasuwawe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5417/7185/files/92337180200.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2729/8461/files/cadette_entrepreneur_badge_requirements.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6481/8838/files/beware_the_dog_roald_dahl.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7184/8100/files/lejuturuvip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0899/1140/files/90317843875.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/5482/9463/files/22655708296.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2610/3971/files/nasakejevakokabelufopodem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0712/2342/files/91607410890.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7201/1941/files/gulavimofe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0866/3456/files/wasanaju.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_off00006594.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6594 5436 bytes
SHA-256: cfc5ec4f02d9e926d93584cb8a4e77e0c5c4a20cabfb3787cd5781c31200d11f
font_01_sfnt_off000077f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77F4 10060 bytes
SHA-256: 92c4286656cce5782dcea990473e7d4e0731ec83f5f8b4f18036b36adc87e493

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