Malicious PDF — malware analysis report

Static analysis result for SHA-256 982295204d82edc2…

MALICIOUS

PDF

41.8 KB Created: 2020-08-06 04:45:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dda8294889451211288fbbf872fbb1d4 SHA-1: 9f4cff285e3af64d0f48aad1fd1f296332b4edb5 SHA-256: 982295204d82edc233055bc14fd2673d44e290e015ef7cebaff390f074ca2928
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links, with one specifically identified as a malicious redirector. The document body text, though partially obfuscated, includes the URL "https://ttraff.ru/pify?keyword=unix+commands+with+example+pdf", suggesting a lure to trick users into clicking on malicious links. The ML classifier strongly supports the malicious nature of this 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=unix+commands+with+example+pdf In PDF document text
    • http://files.latherandsage.com/uploads/1/3/0/7/130740442/dosabisefax_monusav.pdfIn PDF document text
    • http://nemovogod.sarahdguerra.com/uploads/1/3/2/6/132695492/14de80.pdfIn PDF document text
    • http://saratilow.tonyfostertaxidermy.com/uploads/1/3/0/7/130775320/nemetapek-fodesaz-mobisenerijis.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/1/0430/6845/7122/files/51214432633.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8793/8211/files/zubatatas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2624/9885/files/vilaxubivisazivawaruvom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9054/2753/files/80448164182.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9612/1251/files/php_append_to_array.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9879/1329/files/wisebiwanunowexakev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1667/4713/files/padegu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1396/3929/files/acidemias_organicas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7573/1616/files/47063586665.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8851/9080/files/pemadeberisugo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/29121996303.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6581/8789/files/64961825310.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3993/2064/files/zefujalepafaw.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 2

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_off0000661e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x661E 5448 bytes
SHA-256: 225264b80bbccd4f5379c432de7a020513874d07337360fbbd5eefaa0e45af4b
font_01_sfnt_off0000789c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x789C 9888 bytes
SHA-256: 2aa38edc42df784bed0ce958e08546029e90671cf2deccea21c45db1739171a1

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