Malicious PDF — malware analysis report

Static analysis result for SHA-256 4913e572461ed7b9…

MALICIOUS

PDF

44.0 KB Created: 2020-08-06 07:37:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3f86e54218c8f285f5f5fe12530b682c SHA-1: 5bdcb7bcaf561f8ff08b8f8e2aab21a89d08b006 SHA-256: 4913e572461ed7b9f5b9ce6baaa01846e3c5af18ca3ba6f794fc3143fde22dca
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The embedded URL https://ttraff.com/pify?keyword=attestation+d+h%25C3%25A9bergement+%25C3%25A0+titre+gratuit+pdf+a+remplir is a clear indicator of malicious intent, likely serving as a lure for phishing or malware distribution. The document body, though heavily obfuscated, contains references to 'attestation d'hébergement' and the malicious URL, reinforcing the phishing pretext.

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=attestation+d+h%25C3%25A9bergement+%25C3%25A0+titre+gratuit+pdf+a+remplir In PDF document text
    • http://files.renewedbyfaithmissionretreat.com/uploads/1/3/1/3/131380739/wakupovejaxa.pdfIn PDF document text
    • http://nutaj.beeparksandthehornets.com/uploads/1/3/1/3/131398091/xuzur_kebokurajizek_koxifagip_namowodifu.pdfIn PDF document text
    • http://files.pawsitivepupdogtraining.com/uploads/1/3/1/6/131637056/0b53b23f50b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6138/7170/files/24524662360.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0723/6503/files/python_3d_plot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9378/6791/files/16793404407.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7498/4863/files/bameseju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6555/7670/files/cerro_rico_de_potosi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8276/6750/files/7975049666.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4610/9341/files/zusepinoso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8062/1985/files/91169320366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7857/3475/files/pokavuravedidusalezo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2741/2645/files/the_body_ecology_diet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9439/2485/files/25579977181.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 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005b78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B78 5844 bytes
SHA-256: c989a6d61bc4f1edd05a16db4b4dd52d70356d69cd66bb39be99c6b105b191bf
font_01_sfnt_off00006e4b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E4B 11408 bytes
SHA-256: 0eaf703999daa6d964c2c380f5b0d5993f5a4830fd6b2d11ddf02315ef615241
font_02_sfnt_off000091df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91DF 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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