Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3ddfa3dbb149a7a…

MALICIOUS

PDF

57.0 KB Created: 2020-08-11 00:14:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 047f8502b098fa5a9a197d2585469294 SHA-1: 28b81c48d88aa3d8ff5496b7f9f1e57b0aba94c2 SHA-256: d3ddfa3dbb149a7a2eee442c79f05c2f23245e4c1413ca38e56ccdddb37df800
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to external resources, a tactic often used to obscure malicious intent. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is likely used to funnel victims to further malicious content. The document body, though partially corrupted, contains text related to 'maths questions for class 9 pdf', suggesting a lure to disguise the malicious links as educational resources. 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.com/pify?keyword=maths+questions+for+class+9+pdf In PDF document text
    • http://damego.guydebordclubofhouston.org/uploads/1/3/1/0/131070356/xufatom.pdfIn PDF document text
    • http://zonijodaw.childrenfirst-inc.org/uploads/1/3/1/3/131398140/mofadabasafeloj.pdfIn PDF document text
    • http://files.shragagafni.com/uploads/1/3/1/4/131413718/mujuxuxejetuju.pdfIn PDF document text
    • http://files.bestecomerce.com/uploads/1/3/0/8/130814636/mozinuvalebumoxuduka.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/1/0430/6858/8194/files/59933888924.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1572/3414/files/xogabulagatarewufajedi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5986/3959/files/excipientes_farmacuticos_e_suas_funes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5472/6310/files/megizan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5370/3590/files/91336558546.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9056/5537/files/argumentative_writing_samples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8009/6667/files/33157510134.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6263/2360/files/88715011532.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9622/0572/files/44736298693.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/guwesimutetalajizobanubel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5789/7882/files/rifilu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8827/2807/files/meningite_meningoccica_tratamento.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0453/4956/8667/files/atoms_and_molecules_class_9_ncert_notes.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_off0000967d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x967D 5528 bytes
SHA-256: 67a70f63e6946d412a4d799c88435f5cd1e3be968c2dd0f9f7a52a1591d46d40
font_01_sfnt_off0000a93f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA93F 14268 bytes
SHA-256: fe9070329e7f168f1a2537e5db46ef58f49adc2074235966c6413addcc799b7d

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