Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3b42c7f6affcca1…

MALICIOUS

PDF

49.1 KB Created: 2020-08-10 13:12:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6fd5b16b4e3c788cbf8a39d3d3536a4a SHA-1: 1dbebc21f83f77835b51949585fb4c94880cd5b8 SHA-256: b3b42c7f6affcca11e137fc523198c35a28ad752ce8d25b7ef13611bcbe0efd4
194 Risk Score

Malware Insights

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

The PDF document contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=michigan+state+football+schedule+2020+pdf'. This indicates the document's primary purpose is to lure the user into clicking this link, which likely leads to further malicious content or exploits. The document also contains a large number of embedded URLs, many hosted on cdn.shopify.com, suggesting a link farm or SEO poisoning tactic to increase visibility and click-through rates.

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=michigan+state+football+schedule+2020+pdf In PDF document text
    • http://files.thetinyjungle.com/uploads/1/3/1/4/131406288/mofukexaxuwep-sazob.pdfIn PDF document text
    • http://files.videoartcarmenkordas.com/uploads/1/3/1/8/131857756/2687435.pdfIn PDF document text
    • http://mupafen.tearneylab.org/uploads/1/3/1/6/131606289/zowuvuvomu.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/1/0429/8512/8095/files/architectural_design_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9281/1681/files/puputebatelow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4485/4165/files/temorokizezifowij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4758/1856/files/21507187850.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5267/9836/files/pusunuzesalok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5942/0063/files/bsc_nursing_syllabus_kgmu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9378/4728/files/75055638835.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8774/8519/files/ourrelease_org_bittorrent_plus_search.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5955/8053/files/41078442698.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6810/4610/files/87138514676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2160/6818/files/61799091730.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: thetinyjungle.com 3 samples

Related samples 2

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_off000074f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74F4 5740 bytes
SHA-256: 82618061e66d520c48f1ec2553a687481f76ce5d085765b84e44c5cb14416992
font_01_sfnt_off0000887b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x887B 15016 bytes
SHA-256: 30fc02b6b7965547e6c90cdffc6d9ef074d77765c896057b5919fd7f5fca68f8

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