Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1debb6720dcddbb…

MALICIOUS

PDF

49.9 KB Created: 2020-08-05 15:18:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f2302c4f6b1ac18035fb023587cb8dba SHA-1: 0044f59cee4a777edd1300ece871190f1de0502e SHA-256: a1debb6720dcddbb6abf70550eef241ef578411b87485ae76c84608c3f193fb4
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains text related to 'fish farming books in urdu pdf' and the malicious URL. This suggests a phishing or redirection attempt, likely to deliver further malware or lead users to a malicious site.

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=fish+farming+books+in+urdu+pdf In PDF document text
    • http://files.drumvictoria.com/uploads/1/3/0/7/130775490/bijabijijuru_fewix_rakixonox.pdfIn PDF document text
    • http://files.pixpeel.com/uploads/1/3/1/4/131482930/6e4ee705.pdfIn PDF document text
    • http://maxatutu.rvtkd.com/uploads/1/3/1/3/131380729/poneda_nixavedim.pdfIn PDF document text
    • http://files.bilboshappypaws.com/uploads/1/3/1/4/131406841/338afc.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/1/0432/7912/2587/files/48148552114.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3407/4523/files/lanosanomesutajosasowe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2052/5469/files/zetunezodabogotil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gerakofidasetivivirodipel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8602/0761/files/xifazeninafadogizavin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0695/0557/files/portillos_catering_menu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ruwofejimu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6823/5675/files/90976644638.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/6031/0695/files/vegetable_biryani_recipe_in_malayalam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2035/2677/files/minecraft_mods_xbox_one.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6422/2101/files/rutapalazuv.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off0000964d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x964D 21484 bytes
SHA-256: e795ef8fe9d379c522d5c8f66f3af6f3732a56f0d9df9eb575ee204e31a0f977
font_00_sfnt_off0000606a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x606A 5580 bytes
SHA-256: 4379a7da8d3f544a3b47b4a80f7aa53c49c32566f222138e35d41974b253651d
font_01_sfnt_off00007342.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7342 10172 bytes
SHA-256: 5eb3a907a93bff77e6012a69273470c982f4a15f65d0259ff5bb955a54431744

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