Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6e7809cfc8f39e1…

MALICIOUS

PDF

55.3 KB Created: 2020-07-28 06:40:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cffe319df8332f3f37583068cdae1799 SHA-1: 1184a74dd027c0aeec54aace4c9deb7afecf4ec9 SHA-256: a6e7809cfc8f39e1b1aec05b96de8fe2e7179f612e181a6696ddd4ebcbc80d32
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector URL (https://ttraff.ru/pify?keyword=blaster+transformers+prime). This redirector is flagged as malicious and is part of a link farm, suggesting a phishing or malware distribution scheme. The document body, though heavily obfuscated, contains references that, combined with the heuristics, indicate a lure related to 'Blaster transformers prime'. The ML classifier strongly supports the malicious verdict.

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.ru/pify?keyword=blaster+transformers+prime In PDF document text
    • http://files.yogaforvitalitywithashton.com/uploads/1/3/0/7/130740033/91631c.pdfIn PDF document text
    • http://files.mdeasonphotography.com/uploads/1/3/0/7/130739974/magekelixiguw.pdfIn PDF document text
    • http://files.cockerhamcommercial.com/uploads/1/3/2/7/132712011/7038b016074929.pdfIn PDF document text
    • http://files.pgrtoc.org/uploads/1/3/0/7/130775856/5787856.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/1/0431/1924/7514/files/34057158443.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3538/6275/files/tuxidizuloremotemetefep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0501/6225/files/navemevav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8849/4236/files/75537010988.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1470/9663/files/15363357594.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4104/6171/files/gafunufirufogi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1063/7476/files/49895715708.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1209/4109/files/60498321305.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2576/7327/files/balutupefenisorizose.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1241/3851/files/jegekagegututilurunuxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6453/9798/files/zusakuvufawibazetolatof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6630/2376/files/58179592514.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0275/7281/files/luwaxanozefa.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009bf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BF6 4884 bytes
SHA-256: 6ae98d905f351e00bd6e7e2ecc9293e844c6ae32dbcc29e50c3678a5a90f5109
font_01_sfnt_off0000ac6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAC6B 10524 bytes
SHA-256: dfdaf0d055764a935c16b18a3f1a0443439806b878713aca51fc028ea9999913

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