Malicious PDF — malware analysis report

Static analysis result for SHA-256 e43bb447a4ab04be…

MALICIOUS

PDF

51.5 KB Created: 2020-07-30 19:41:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bb44fc55fedc0160d180f55c36ffed2b SHA-1: 97e621768c446e24110d7f010313567972403ace SHA-256: e43bb447a4ab04be21cbde070a65ff9ba3625e293c956bd4034a2ba59468bf2c
194 Risk Score

Malware Insights

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

The PDF file contains numerous links designed to redirect users to external websites, masquerading as a free book download. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely used to funnel victims to further malicious content. The document body, though heavily obfuscated, contains text related to 'Mtg neet books pdf free download', reinforcing the lure. The presence of multiple Shopify URLs suggests an attempt to blend in with legitimate content while distributing malicious links.

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=mtg+neet+books+pdf+free+download In PDF document text
    • http://files.inglesart.com/uploads/1/3/2/7/132710748/padipudolez.pdfIn PDF document text
    • http://files.texashollandlops.com/uploads/1/3/1/3/131379371/7953459.pdfIn PDF document text
    • http://files.nchea3.com/uploads/1/3/1/3/131384113/1170417.pdfIn PDF document text
    • http://files.thedaughterstable.com/uploads/1/3/2/6/132682790/7496442.pdfIn PDF document text
    • http://files.landsendmarinainc.com/uploads/1/3/1/4/131407635/jiludasux.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1478/2103/files/2587105495.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3121/5780/files/fowij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zavokalozetaxolemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2318/7614/files/nabujuxovovebuxoveraz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2602/2557/files/94161660378.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wexidemunuviviradepinitim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8432/4770/files/61677077115.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9476/8792/files/gowofokixalik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1119/3501/files/judoveta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0820/4704/files/86853344788.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007221.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7221 5252 bytes
SHA-256: f0414a2c1f1608cc9486b6d2c2915340a86f618631b165207fb56e0c259d5dc6
font_01_sfnt_off00008421.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8421 10396 bytes
SHA-256: 6c83307ec8436bb096544cb325700e1ee5cff08f7fe51c1a1ee383d065326dc1
font_02_sfnt_off0000a7ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA7FF 7328 bytes
SHA-256: a8edd8b49c1d74beaa0350960de5651905dbb28b7f465fea62645f2b5241f932

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