Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f9abd907b325198…

MALICIOUS

PDF

41.6 KB Created: 2020-08-09 09:11:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 65432ee68b5a046141adb8acced540e3 SHA-1: cd0f1059c88ae1dbe99b767c12c507022248eaf3 SHA-256: 0f9abd907b3251981311968a62f858109a43b0dcdf8b921ba85fec48168a39a1
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many of which point to a redirector service known for malicious activity. The document body and heuristics indicate a lure to download files, likely as part of a phishing or malware distribution scheme. 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.com/pify?keyword=pdf+file+download+apkpure In PDF document text
    • http://files.brenthubs.com/uploads/1/3/0/7/130776416/jexuremomisos-bazapozifom-kixosi.pdfIn PDF document text
    • http://files.notronmfg.com/uploads/1/3/0/7/130776343/xovumomalufij-rugetovuviza.pdfIn PDF document text
    • http://files.torontoflowergallery.com/uploads/1/3/1/4/131453031/1503984.pdfIn PDF document text
    • http://files.yesandventure.com/uploads/1/3/1/4/131452883/najuzonuxu.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/1/0443/1645/9164/files/50669052599.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1546/1275/files/tetatagomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8216/1053/files/slavery_by_another_name_douglas_blackmon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9776/6553/files/arbitrage_trading.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6394/3067/files/63494764450.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6961/0907/files/rabotekigakire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8155/6375/files/37952025461.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5039/4019/files/39132999210.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6397/4815/files/rorejivojixedugulipa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3193/6674/files/lofukaroxud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5362/0136/files/74459287913.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_off00006729.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6729 5016 bytes
SHA-256: 7bc0c7912764215c4c37e7f22170befe51bb1990e3bd16df928d0ba22574adb3
font_01_sfnt_off00007861.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7861 9776 bytes
SHA-256: 0834ea8c605f1ff1cc2856f73511f25fd613899298feae3cf04910593a3cda10

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