Malicious PDF — malware analysis report

Static analysis result for SHA-256 472c26d751996cac…

MALICIOUS

PDF

45.0 KB Created: 2020-08-10 06:25:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3caf1fbf9d2d852ba61d07520f9c8b87 SHA-1: 2629dc552e3d96f6401702aeb6b752642308662d SHA-256: 472c26d751996cac0a057811ca3782a0a174c4548bbeb98052daea7509b5f1b3
194 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a known malicious domain, ttraff.com. The document body, though heavily obfuscated, contains text related to a 'bank clerk exam syllabus' and the malicious URL, suggesting a phishing or scam lure. The presence of numerous external PDF links, many hosted on Shopify, further indicates a link farm designed to obscure the final 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=bank+clerk+exam+syllabus+2020+pdf+download In PDF document text
    • http://files.lakenormanyoungprofessionals.com/uploads/1/3/1/4/131437380/49085f4.pdfIn PDF document text
    • http://files.ristorantepizzeriacasamatta.com/uploads/1/3/1/6/131606789/puworajoz.pdfIn PDF document text
    • http://files.synthesisaestheticsproject.org/uploads/1/3/2/6/132681307/4db4c.pdfIn PDF document text
    • http://files.sonjanagy.com/uploads/1/3/1/1/131164129/4082342.pdfIn PDF document text
    • http://files.thebossygourmet.com/uploads/1/3/0/8/130814466/jobuwapuzo.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/1/0432/8508/6364/files/valse_d_amelie_partition_piano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4509/3533/files/51130377676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5124/5987/files/salex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4446/8898/files/38590214164.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0118/3397/files/87515396096.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6643/3435/files/43548531647.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5206/3125/files/jomege.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4881/0149/files/emotional_intelligence_2._0.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9960/9505/files/velijozosirenijavisupama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6067/4210/files/tegarevijapu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8017/9109/files/safety_management_system_manual.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_off0000700d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x700D 6092 bytes
SHA-256: d0ae2c6cc4121ce36efafa6868c3f30f6a493737934d4d2f12824b3d241a0cbb
font_01_sfnt_off000084cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84CF 9968 bytes
SHA-256: ecefcdb34182c5fb07b654e5f642d0d93d93968c818d35caa5301a98c33e42e7

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