Malicious PDF — malware analysis report

Static analysis result for SHA-256 48cbd5b527a3ed9d…

MALICIOUS

PDF

42.6 KB Created: 2020-08-22 14:14:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2d36177ef1af0f4eaa59ee7cb3dc2265 SHA-1: 3f6dae5d463b290621d0244d9887a5fbb0c863e8 SHA-256: 48cbd5b527a3ed9d6209e773403b837207b9d638562c9c61ced74544b8549830
194 Risk Score

Malware Insights

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

The PDF document was flagged by a machine learning classifier as malicious and contains a critical heuristic indicating it links to known malicious redirector infrastructure. The document body and embedded URLs suggest a lure related to 'simple platform bed plans free', which is likely a pretext to drive traffic to the malicious redirector at ttraff.com. The presence of a large number of external PDF links, many hosted on Shopify, indicates a potential SEO link farm or a method to obscure the true malicious destination.

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.com/pify?keyword=simple+platform+bed+plans+free In PDF document text
    • http://files.impactdesign.co/uploads/1/3/1/4/131483031/6393183.pdfIn PDF document text
    • http://files.laencinadaranch.com/uploads/1/3/2/7/132740249/b124ef6006ec.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/1/0433/8342/3128/files/megavun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2440/7961/files/shutter_island_2010.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3161/7945/files/78009774089.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8073/6156/files/background_music_free_in_telugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9703/0817/files/birujat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5943/7975/files/42358427217.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9309/0714/files/dotot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6336/0153/files/pre_op_total_knee_replacement_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1698/5503/files/biozone_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2207/3506/files/xeguras.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
🗂 Part of campaign: casa-collective.com 10 samples

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_off0000623f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x623F 5428 bytes
SHA-256: bf9fe8f94fb73806143431fe27abd7ff74d552b460a38e51d53c76078c5d0683
font_01_sfnt_off00007489.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7489 12404 bytes
SHA-256: 419ceda6402c7334a1d8a7f0a65979030ce5348388aeb0f627b91efbb20641ab

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