Malicious PDF — malware analysis report

Static analysis result for SHA-256 77e381ab330a556c…

MALICIOUS

PDF

43.4 KB Created: 2020-08-05 15:53:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5ae4f2b285632d9dd55fa889181c482f SHA-1: dc286f47dcc45909fb91db161a70a82406f540d0 SHA-256: 77e381ab330a556cb70dcf49f42196fdb53557629e353dd58c46d4d19c3d5333
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to a redirector infrastructure, suggesting a link farm or phishing lure. The primary redirector URL is https://ttraff.cc/pify?keyword=hebrew+bible+translation+to+english+pdf, which is flagged as malicious. The document body, though heavily obfuscated, also contains this URL and other Shopify links, reinforcing the lure. The ML classifier strongly indicates maliciousness.

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=hebrew+bible+translation+to+english+pdf In PDF document text
    • http://files.musica-mitchell.com/uploads/1/3/1/0/131071082/wutebolikusan.pdfIn PDF document text
    • http://kubinavi.bigfootodyssey.us/uploads/1/3/1/4/131482975/zefutamidoru_fifamon_jagalogugokube.pdfIn PDF document text
    • http://figed.skilletruf.net/uploads/1/3/1/3/131380845/fddbc.pdfIn PDF document text
    • http://files.easel-lab-mondal.com/uploads/1/3/1/3/131380592/xokisenozu.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/1/0428/2076/3804/files/dadewikegilefogonibagap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0657/4238/files/30300302164.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2523/5111/files/43853572731.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1907/4712/files/google_calendar_html.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3583/6072/files/nifavagazuguxefidew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8987/9445/files/46644493858.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2799/5552/files/smite_deserter_penalty.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4681/3344/files/41580954801.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2243/3953/files/2038536984.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/21800621301.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6788/2134/files/77052494564.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86556218032.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7631/2478/files/37803288914.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 7

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_off00006ad6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AD6 5496 bytes
SHA-256: b7109d30f09dcce04e030955a253c825adc17b376177f43977ce0b8e18bf1c28
font_01_sfnt_off00007d89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D89 10316 bytes
SHA-256: d3d0d4512fbbe5c41087db84c28b4c8525731fbd15e477059b51fc2503f01975

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