Malicious PDF — malware analysis report

Static analysis result for SHA-256 416e368d5b78dc17…

MALICIOUS

PDF

53.4 KB Created: 2020-08-24 19:51:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5cb0bc9f058438a084fb0252ab2c53e4 SHA-1: 56f66ff7a4baf7e2a815e79564dafa76d7450f25 SHA-256: 416e368d5b78dc17e4b74ae3a7344062269cc345a7e70762792bf495347601c1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, directing users to 'https://ttraff.ru/pify?keyword=adafruit_gfx.+h+arduino'. It also exhibits characteristics of a PDF link farm, with numerous links pointing to external PDFs, many hosted on shopify.com. The document body is heavily obfuscated but contains the malicious redirector URL and several other URLs that are likely part of the link farm. The primary attack vector appears to be social engineering through deceptive links within the PDF.

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=adafruit_gfx.+h+arduino In PDF document text
    • http://files.warp-drive-physics.com/uploads/1/3/1/1/131164236/f1f2eb.pdfIn PDF document text
    • http://wopube.dslvnjny.com/uploads/1/3/2/6/132696056/18b0ff5.pdfIn PDF document text
    • http://vapilut.jeromecustoms.com/uploads/1/3/0/7/130775166/semugofagekivaz-kekuvewuguget-vimimapidalu-bosudemawa.pdfIn PDF document text
    • http://kekozir.spotlightpac.org/uploads/1/3/1/3/131384635/makawemoxek.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/1/0431/5702/9019/files/83510308242.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/54313135065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1887/1207/files/spanish_accents_practice_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0118/4417/files/16943139773.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7976/8995/files/specialit_e_brevetti_scout.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5111/4908/files/primera_cx1000_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1003/0748/files/13633478459.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5827/4205/files/56571409010.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/0426/9468/files/82472854144.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0024/7958/files/vasinen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1347/9320/files/nubulujanovefanasuzota.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/1817/3854/files/rawobuvogiwosiw.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_off00008e93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E93 5076 bytes
SHA-256: 4fd1786270c473674e6cee300dc5ae808942a6065736280184fe7d6be38c3924
font_01_sfnt_off00009fe1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9FE1 12940 bytes
SHA-256: 168f72ebc8f418d5dc01cca834eed76b6315de73775e3672342a520dcd8bcf44

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