Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe96e28f7848e1e0…

MALICIOUS

PDF

43.6 KB Created: 2020-08-06 17:36:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6ee6cb46366cab5b2e1115ae3307b761 SHA-1: 9ecc185d78b4a74b6ebbcb743e96a4b67718cebf SHA-256: fe96e28f7848e1e0a1f8b721b507dc64ffa5c5311fea6be9ed533f8f0c4794c0
194 Risk Score

Malware Insights

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

The PDF file exhibits malicious behavior through its extensive use of external links, with a critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=sleep+apnea+patient+handout+pdf', which is flagged as malicious. Additionally, a large number of other PDF links are embedded, suggesting a link farm designed to distribute traffic or obscure the ultimate destination. The presence of these links indicates an attempt to redirect users to potentially harmful content.

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=sleep+apnea+patient+handout+pdf In PDF document text
    • http://files.meghanfoleyyoga.com/uploads/1/3/1/8/131856012/sisilogufiliv_wugijinizip_fumokej_merojiwoxoxabun.pdfIn PDF document text
    • http://files.healingrootshypnotherapy.com/uploads/1/3/0/9/130970004/4391324.pdfIn PDF document text
    • http://sapowuxe.sniderthirdgrade.com/uploads/1/3/2/8/132815002/puluwipebisitepe.pdfIn PDF document text
    • http://files.ausginday.com/uploads/1/3/0/9/130969498/sukomibupopoxe-pewub-suxipajif-serezu.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/1/0428/5048/4390/files/foxit_reader_for_windows_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sivezijikok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5841/2185/files/the_effective_engineer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7223/3380/files/60267533436.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wugituvunajobi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0262/5178/files/39391620587.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5788/0994/files/manual_de_auriculoterapia_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8077/7882/files/42416793354.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1231/6584/files/xoxulop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2449/8333/files/jogisebovojag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8062/1984/files/runes_diablo_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2637/5071/files/39276926053.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_off00006c99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C99 4960 bytes
SHA-256: a6f0f3456915c27b8e42b4ab127cbc71a686a5d1dcf5b2dc5353cd6350045133
font_01_sfnt_off00007d79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D79 10800 bytes
SHA-256: 40bcea45893b01e8a5b3881edfbbba3f883b3a80054799318584d7b10ba77514

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