Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa1ab15f6053c4dc…

MALICIOUS

PDF

57.3 KB Created: 2020-08-17 07:57:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1a46bbd0e5f1b986c6fb5e5f7de97995 SHA-1: ed1db8c6d73453a60a075868b93956e732f94205 SHA-256: fa1ab15f6053c4dc906a33aaa3d1b0e9001bababf90b6ba13d0292ba8c2164da
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=agricultural+research+methodology+pdf'. This URL is designed to lure users into clicking by appearing to offer a research paper. The document also exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on Shopify. The ML classifier strongly flagged this PDF as malicious. 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.cc/pify?keyword=agricultural+research+methodology+pdf In PDF document text
    • http://files.theglassforeststudio.com/uploads/1/3/2/7/132740756/dabav.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/1/0430/1763/3949/files/nesezedotofoxesol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5524/2655/files/rizegapodapijak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9175/4149/files/5809512276.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0240/3750/files/86129640282.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7760/7324/files/english_conversation_exercises_for_beginners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3296/0409/files/ziziwororofafuwun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/581871399.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6280/4136/files/gitakikotupopivejalire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1150/4288/files/tatafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1683/8558/files/34234755329.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7440/5023/files/broken_heart_english_song_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0734/3772/files/c_udp_socket.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7315/8806/files/19591977874.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5324/3816/files/barauni_junction_ka_platform.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 5

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_off0000a28f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA28F 5660 bytes
SHA-256: 5a3cc5e5097590003703f3bd2c405c1028d2ee94de79d696ec43c0bdb91c4215
font_01_sfnt_off0000b5b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB5B7 10176 bytes
SHA-256: 5965ea8235c23afd3c1768a646c4830ff005a6a7b865d515b02285d3b17d96e8

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