Malicious PDF — malware analysis report

Static analysis result for SHA-256 5508af0ecefcf8ea…

MALICIOUS

PDF

45.8 KB Created: 2020-08-20 00:08:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9e27a548953346c4a94e4a3a73fc4a2d SHA-1: 624c81bec38e8e275f03e1c576ced0a05cd55704 SHA-256: 5508af0ecefcf8ea9c5e9616feaa0417f8498b965877cf05029e7f3b04bb409a
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. The document body, though heavily obfuscated, contains text related to a movie and the malicious URL, suggesting a lure to a phishing or malware distribution site. The ML classifier 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.ru/pify?keyword=bucket+list+marathi+movie++worldfree4u In PDF document text
    • http://files.thelitbitesodyssey.com/uploads/1/3/0/7/130775892/kigaxiwikaxexarot.pdfIn PDF document text
    • http://lijogaw.herbanbiophiliac.com/uploads/1/3/1/6/131606490/juget.pdfIn PDF document text
    • http://files.eastsuperiorcc.com/uploads/1/3/1/0/131070009/buwugedurutusi.pdfIn PDF document text
    • http://files.yournameinstitches.com/uploads/1/3/1/4/131407152/4935649.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/1/0429/2601/4620/files/gomozapujasurafuper.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/21659337375.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0004/5469/files/adjectival_clauses_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/8879/2990/files/59970621391.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9235/1907/files/67174105374.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8721/7319/files/salesosinokidemu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1510/9797/files/design_of_brick_masonry_structures.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4646/8769/files/dibitirofumoveveluruveseg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8660/1635/files/kicker_bundesliga_spielplan_2020_20.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3506/5505/files/98913750386.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9664/5538/files/22645969453.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6296/8991/files/mathe_bungen_bruchrechnung.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 5

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_off000067f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67F5 5612 bytes
SHA-256: 2b04f1d52127648f8173ce8d38183ce2537a0a3c8e77ea202347532ae9f5f2eb
font_01_sfnt_off00007b01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B01 15464 bytes
SHA-256: 59c0c7938653e3c859703d527edf7296a435368f13d0e2a801faa48a272abb10

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