Malicious PDF — malware analysis report

Static analysis result for SHA-256 084325dcdd93fe2c…

MALICIOUS

PDF

42.2 KB Created: 2020-08-09 09:17:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ada652669126c1020d2e0f6c4a11a014 SHA-1: 8775ccc7e18898ed130af4e7adcf3d269df503dc SHA-256: 084325dcdd93fe2cb4364e306bcf503555ca2f7ed6b765a23480d3658407590c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many pointing to redirector infrastructure like 'ttraff.ru', which is flagged as malicious. The document body, though heavily obfuscated, includes a URL that appears to be part of a link farm designed to trick users into downloading further malicious content. This suggests a phishing or malware distribution scheme.

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=bel+ami+guy+de+maupassant+pdf+english In PDF document text
    • http://files.michellevanlare.com/uploads/1/3/1/4/131407901/42e69.pdfIn PDF document text
    • http://files.economicslearningstandards.com/uploads/1/3/0/7/130775174/sagedete.pdfIn PDF document text
    • http://sovemumo.jlrodgers.org/uploads/1/3/0/8/130814328/19a12f3.pdfIn PDF document text
    • http://files.tuval-mashiach-psychology-biu.org/uploads/1/3/1/6/131607363/majirotegegulero.pdfIn PDF document text
    • http://files.beadedtreats.com/uploads/1/3/1/3/131382243/bojufenisuda.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/1/0431/0473/1300/files/5949012465.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7054/6329/files/byte_of_python_swaroop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2936/3878/files/busbar_sizing_calculation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/89045370956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3237/1622/files/85723886219.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5821/7631/files/67970230310.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5597/2501/files/antigona_sofokles_kniha.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8005/5965/files/8186044679.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8127/6319/files/psychosocial_well_being_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4396/2532/files/cpwd_specification.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9501/4042/files/57521758681.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8713/4882/files/39154678774.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0139/2801/files/mergers_acquisitions_and_corporate_restructurings_7th_edition.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_off00006607.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6607 5512 bytes
SHA-256: 9a9b701595d589bd179d9bc119cc009ad0619cf96fc1f0ba81d7b990c4a61b8d
font_01_sfnt_off000078b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78B1 10344 bytes
SHA-256: efcc5a1334abc8713e4718368f5bf1593cf133d6992e50a90197e39276274192

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