Malicious PDF — malware analysis report

Static analysis result for SHA-256 82e4d671b4d3b07f…

MALICIOUS

PDF

53.1 KB Created: 2020-08-11 17:39:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ffd8202cd124eb3512f8fe274066813e SHA-1: bcfa89befe0c20f16a4769db05276ec0a60b9a69 SHA-256: 82e4d671b4d3b07fd2531b829688aacfc32586b2f82d4b905c759ba736382a41
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and SEO link farming, specifically pointing to 'ttraff.com' as a redirector. The document body, though heavily obfuscated, contains the same URL found in the heuristics, suggesting it's the primary lure. The ML classifier also strongly indicated maliciousness. The presence of embedded URLs and the nature of the heuristics suggest a phishing or malware distribution attempt.

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=atulya+bharat+by+rajni+vyas+pdf+download In PDF document text
    • http://files.karadoodles.com/uploads/1/3/1/3/131379296/resegowukela-pawaji-wisusuniluzodib-ferenudizad.pdfIn PDF document text
    • http://files.windhamjunction.com/uploads/1/3/0/7/130775561/sivutepibij.pdfIn PDF document text
    • http://files.rebeccaaranyi.com/uploads/1/3/0/9/130968961/4216293.pdfIn PDF document text
    • http://files.soundanddoctrine.com/uploads/1/3/1/4/131452903/c1fe63940.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3951/4015/files/ancient_world_history_timeline.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2073/0011/files/loxuduludu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3191/0810/files/junifiregemijojazarelo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8742/9785/files/bakalsk_prce_mup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4381/4560/files/nituxuziremorunovukugifam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9549/0721/files/nefakuziroxopinura.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7972/8281/files/koritasisolerewus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9925/1093/files/sims_3_cars.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5179/5107/files/51744351278.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8778/1276/files/kisidugulisubupa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5548/7905/files/34515687281.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 4

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_off00008414.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8414 5352 bytes
SHA-256: 62132e649a3b05f8222e5250932057f9e8656aa9226fda9b92b9a7f9a1c4a5a5
font_01_sfnt_off00009644.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9644 10144 bytes
SHA-256: 18752d77b83ddefc94ec196ec0141d08b3241ab04f76ab34d22116e96398f5ec
font_02_sfnt_off0000b8e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB8E9 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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