Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1a6982292d6fb06…

MALICIOUS

PDF

39.5 KB Created: 2020-08-25 05:47:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 36cbc1072be98c4eebfc897c03ae5ef0 SHA-1: 64068db358821f50bcc504ebe61921e54b61fc98 SHA-256: d1a6982292d6fb06fbe1dc7bbd899c954e97b51eb620ada647a267459119a30b
162 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged as malicious by a machine learning classifier and contains a link to a known malicious redirector. It also features a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO manipulation tactic. The document body contains garbled text but includes the URL 'https://ttraff.ru/pify?keyword=java+code++file+from+server', which is identified as a malicious redirector.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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.ru/pify?keyword=java+code++file+from+server In PDF document text
    • http://files.fflinstall.com/uploads/1/3/2/8/132814809/b39009c.pdfIn PDF document text
    • http://tozep.edwardmknight.com/uploads/1/3/1/4/131438405/tomabutuxoragaf-miwoveduwa.pdfIn PDF document text
    • http://bumizu.scraigroberts.com/uploads/1/3/0/7/130776046/fb8df9f2be.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/1/0428/5267/9836/files/1941_atlantic_charter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5651/2676/files/96010376921.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4044/8407/files/94519692916.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9353/2573/files/putumogotazonunusukage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0675/3948/files/pedobavuzigutejuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9805/3535/files/fobokobodazafujifaxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8156/3286/files/pawogeloz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5497/9477/files/filmyzilla_bollywood_2016_movies.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8704/4510/files/72325102147.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 3

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_off00005a3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A3E 5216 bytes
SHA-256: 5d40c4154f4aa5e2af611429227eadac7b21f90b8331f09eed7968c922e7a1d8
font_01_sfnt_off00006be0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BE0 11364 bytes
SHA-256: 3198f0c0a96484a2548d56ab6e1029e109bb8787fb8781607246a9cc855ac952

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