Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e398ba30df93e85…

MALICIOUS

PDF

44.3 KB Created: 2020-08-27 20:46:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8559ddfc675f571a122a2c04fefa12e1 SHA-1: e21ccb986c4e17ee7b5da9ca54030075bc099f04 SHA-256: 7e398ba30df93e85fa1a46226e444dbf10686bd4df2b29dd1805ba48aa2c4aa6
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 firing indicating that it redirects to known malicious infrastructure. The primary redirector URL is 'https://ttraff.cc/pify?keyword=calcium+hydroxyapatite+crystal+formation'. The document body, though heavily obfuscated, contains this same URL, suggesting it is the intended destination. The presence of numerous Shopify-hosted PDF links, many flagged as benign, likely serves to mask the malicious redirector within a larger link farm.

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=calcium+hydroxyapatite+crystal+formation In PDF document text
    • http://files.thattruthspoken.org/uploads/1/3/1/6/131606260/xekutujelesijobojim.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/1/0427/6686/0455/files/expenses_entry_in_tally.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7854/9665/files/manuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8857/6673/files/whetstone_sharpening_instructions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2246/7750/files/daxabepusigifaginamudixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4107/1016/files/busefidesanupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/6518/9019/files/mba_entrance_test_papers_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9279/5801/files/35875539382.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6555/7670/files/bundesliga_spielplan_18_19.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2960/1175/files/aiag_spc_manual_2nd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5802/6901/files/round_hair_brush_size_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5581/6599/files/mevazo.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 1

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_off00006bc2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BC2 5468 bytes
SHA-256: cbe88ce0dd532967aa43a057555a52c25b3d476c0ef45a0dc496a67ed855fc31
font_01_sfnt_off00007e42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E42 11180 bytes
SHA-256: 5b592af576beafdb7c63d1225567435171de364670084145760b7cff040faf7f

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