Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0165e4b2284038f…

MALICIOUS

PDF

45.8 KB Created: 2020-08-02 11:32:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bdf9f91fa29d0886c987622c26523715 SHA-1: ee5663c90951725997ce692ffd97f461e2a0ff1b SHA-256: e0165e4b2284038fddc51f4c54f36a48760cf43c6abee520eb342c2f3399784e
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is https://ttraff.cc/pify?keyword=logarithmic+scale+matlab. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to lure users to malicious content. No scripts were extracted, but the PDF structure and link farm indicate a phishing or redirection attack.

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.cc/pify?keyword=logarithmic+scale+matlab In PDF document text
    • http://files.gittco.com/uploads/1/3/1/6/131606631/bewazewodixek-lanova-jekaxawotum.pdfIn PDF document text
    • http://files.chilhowiechurch.com/uploads/1/3/1/4/131438260/pazavererin-ritajumi-makemekeba-kudedapevi.pdfIn PDF document text
    • http://files.highschoolmathlive.com/uploads/1/3/0/7/130739275/5056819.pdfIn PDF document text
    • http://files.asfiltermedia.com/uploads/1/3/2/6/132682868/jajojave.pdfIn PDF document text
    • http://files.barbarasuebrodie.com/uploads/1/3/1/0/131069968/01c749e3f751a.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/1/0429/9191/1066/files/55463243501.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7052/9436/files/2501078815.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9503/8877/files/38983296950.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2430/8630/files/lezarusozewebedafokiviti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3713/0914/files/kifijobatapowupokakok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2578/5255/files/fegipewijikoda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4002/9344/files/1402677577.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7261/7637/files/xomebigosojesixe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9166/5830/files/19949931640.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7618/2426/files/68993893431.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6849/7823/files/23337276698.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8742/9785/files/jitodubufoneminaze.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 7

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_off00007520.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7520 5292 bytes
SHA-256: 29ac4ca8f092d2ed51625721206b666bc0896775b7c3372af2fa6fadb714c19c
font_01_sfnt_off000086fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x86FC 10408 bytes
SHA-256: 12d6da5f5bf62b76c4b8a58fd72d5b04d7f7d48b78c454c73ab1dd1e6109fc8a

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