Malicious PDF — malware analysis report

Static analysis result for SHA-256 0042d74a855cf713…

MALICIOUS

PDF

53.5 KB Created: 2020-08-10 10:45:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 568f91498e24709a761b17e85b3bc4b7 SHA-1: 90e6b15fabdeefb8ed838ec4a7f8651ece5fe1c7 SHA-256: 0042d74a855cf71318dc796e5c61782f5585b48590d5ca76cb963589f16f2cae
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 service (ttraff.ru) that is known to host malicious content. The document body, though heavily obfuscated, contains references to the redirector URL and other PDF links, suggesting a link farm or SEO poisoning tactic to lure users. The ML classifier also strongly indicated 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.ru/pify?keyword=jorge+luis+borges+library+of+babel+pdf In PDF document text
    • http://files.samschaus.com/uploads/1/3/2/7/132740457/5eeb85.pdfIn PDF document text
    • http://files.jeskare.com/uploads/1/3/0/7/130775653/komimirozaga-kakuwu-wazokepajaxuwol.pdfIn PDF document text
    • http://files.kaylinscreations.com/uploads/1/3/0/9/130969508/4331906.pdfIn PDF document text
    • http://files.aboundinlove.com/uploads/1/3/1/0/131069869/nipumifabolej_wibuvupekefile.pdfIn PDF document text
    • http://files.jessicakaranian.com/uploads/1/3/1/6/131636692/pawifetunulolov.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/1/0432/2492/4319/files/rexapaxurelujul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1290/6405/files/vubikenusodarofiluvabep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5928/1061/files/91913926696.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4312/6438/files/33176846777.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0961/2712/files/gapez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1058/0903/files/march_2020_calendar_marathi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4121/0024/files/72100951869.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pizejop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9866/1279/files/36821755949.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/40169505762.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2350/6336/files/breadcrumbs_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/8815/5558/files/technician_job_description.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0821/9560/files/burris_eliminator_3_manual.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_off00009167.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9167 5440 bytes
SHA-256: 2342c328449f488eac9143619cbefc9c3a579338198911570c67f5334f071d86
font_01_sfnt_off0000a3fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA3FA 10560 bytes
SHA-256: 17eee0b21527dbf7273cbae527f3f075dc7c9761e754787de333470fc85d17e3

Open this report in the interactive analyzer, or submit your own file for analysis.