Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc1e4116ae6004c8…

MALICIOUS

PDF

41.8 KB Created: 2020-08-03 17:29:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 429855c514403701180d2652371e1d62 SHA-1: 160a5c17459e1d07709be5348ed2416ffef1c1a0 SHA-256: cc1e4116ae6004c8a558c33a8c40f049caf00e9d561c9565c76529ac374999a4
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files, suggesting a link farm or redirection strategy. One critical heuristic identified a link to known malicious redirector infrastructure, specifically 'https://ttraff.cc/pify?keyword=shoulder+dystocia+management+pdf'. The document body, though heavily obfuscated, also contains this URL, indicating an attempt to lure the user into clicking it. No scripts were extracted from this sample.

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=shoulder+dystocia+management+pdf In PDF document text
    • http://files.bodyoilsbybrenda.com/uploads/1/3/1/4/131483009/7934868.pdfIn PDF document text
    • http://files.sugar-coated.org/uploads/1/3/1/4/131484029/mojasodav_lipaporam_ramoguzer_zademizimetex.pdfIn PDF document text
    • http://files.beyondthegap.org/uploads/1/3/0/7/130739658/samitimizovanisel.pdfIn PDF document text
    • http://files.capitalareafoodcouncil.org/uploads/1/3/1/3/131380337/ripaxasawoxoxosu.pdfIn PDF document text
    • http://files.ammosfilms.eu/uploads/1/3/0/7/130739789/gisomu-tozomogasemos.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/1/0434/2883/9586/files/33800608436.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2210/6271/files/59970877334.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5833/9733/files/xoruge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6113/3990/files/2729208941.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4027/6642/files/nakarobawobod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6572/0486/files/nejelanovuwixarokadela.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8475/0743/files/dulugivusu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6769/3474/files/90129925119.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7133/1734/files/suxopaxuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6738/3716/files/38790219301.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7192/1573/files/pefetinepagaru.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 7

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_off0000641c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x641C 5776 bytes
SHA-256: 747a9b3733c466791f8222a4560a7ce1425d4933ef8a2f935f5f966a23c3ad25
font_01_sfnt_off000077a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77A9 10140 bytes
SHA-256: 98f292cce98aa06679b31297a2712082d4d92a9e11615032c388b98ed72fe781

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