Malicious PDF — malware analysis report

Static analysis result for SHA-256 bddc203bbbb85dec…

MALICIOUS

PDF

59.5 KB Created: 2020-08-12 06:54:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 784d5bd16ed8e5dc24a53c2ef05614e0 SHA-1: 6c71a63d8e1159b102ed9691b2edbf5f557a08e6 SHA-256: bddc203bbbb85dec1d4fc071e6d091ab48983fd914da51b72fe6ef256a9354e7
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains URLs that are part of a link farm, suggesting a social engineering tactic to drive traffic to malicious sites. The primary malicious URL identified is https://ttraff.cc/pify?keyword=bosch+automotive+electronics+book+pdf, which is likely used to redirect users to a further 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.cc/pify?keyword=bosch+automotive+electronics+book+pdf In PDF document text
    • http://files.choisnuts.com/uploads/1/3/1/4/131483371/9292491.pdfIn PDF document text
    • http://files.widehorizonsretreat.com/uploads/1/3/1/0/131070993/1810992.pdfIn PDF document text
    • http://files.fixmyfeet.co.za/uploads/1/3/2/8/132815828/popemotin.pdfIn PDF document text
    • http://files.bigheadtechnologysolutions.com/uploads/1/3/1/4/131409861/6944754.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/1/0428/7175/0822/files/86394988588.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8833/9361/files/peridega.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3048/5915/files/5121640381.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6392/7203/files/37151066482.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3963/8179/files/34048835887.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4677/3660/files/afinidades_electivas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tuwaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3621/9291/files/vupen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/18813115042.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7596/0985/files/92571942384.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8954/9729/files/antibiotic_resistance_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4553/5400/files/soccer_attacking_drills.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 8

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_off0000a0e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA0E8 5708 bytes
SHA-256: a711171d261287bb2febf91018a86b76815753a1318609c928cfbc9afda02d7a
font_01_sfnt_off0000b42b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB42B 14296 bytes
SHA-256: e7b3cd8125c712f85d6c1d14da8cbc0b4ad496c39406f3d4251db69347c4bc59

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