Malicious PDF — malware analysis report

Static analysis result for SHA-256 65553fdfdffe5839…

MALICIOUS

PDF

44.3 KB Created: 2020-08-21 21:23:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a928f4cb408342e46bb09502a5845827 SHA-1: 034a28c238a7f80fa13d1556ebae9e19c8a7f61d SHA-256: 65553fdfdffe5839ebfa45994e9a76581f4d7b0f4c6d6e573a6502c5834e7e6f
194 Risk Score

Malware Insights

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

The PDF contains a large number of links, many pointing to a redirector service, suggesting a link farm or phishing campaign. The document body, though heavily obfuscated, contains references to 'Bloons td 1 apk' and URLs that appear to be lures for free downloads. The primary malicious URL identified is https://ttraff.cc/pify?keyword=bloons+td+1+apk, which is flagged as a malicious redirector. No scripts were extracted from this sample.

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=bloons+td+1+apk In PDF document text
    • http://files.nanostitchlab.com/uploads/1/3/1/3/131380440/6916303.pdfIn PDF document text
    • http://files.towtruckmilltownnj.com/uploads/1/3/0/7/130776343/5f6347d.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/1/0437/6245/0586/files/fitokutur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1778/8830/files/dojizoxufuxipurarenipox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/5626/2307/files/44734613959.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5743/9129/files/71901683594.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/palafasejuzanuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0686/0187/files/84967895712.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5823/2480/files/26013129343.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5007/2224/files/55797820192.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1492/1114/files/52841642628.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8289/8840/files/74253606782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4674/7803/files/ranger_subclasses_5e.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3127/2346/files/gepugopo.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 5

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_off0000695c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x695C 5020 bytes
SHA-256: b096208762a5c87cbf13f698e62931c28a75280010f4c11c709ee5a4e5305540
font_01_sfnt_off00007a88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A88 13224 bytes
SHA-256: 720631cbe6885ecdc1298c6b900c9ab4abebf02c63bbd4fe8293281eec66f346

Open this report in the interactive analyzer, or submit your own file for analysis.