Malicious PDF — malware analysis report

Static analysis result for SHA-256 10b814c12aab151d…

MALICIOUS

PDF

40.2 KB Created: 2020-08-14 18:42:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 083b87c8d3300671da50d93fbc7c39c1 SHA-1: 3517250ca4b131306dae596bf17fe9142338deac SHA-256: 10b814c12aab151d2abdcc9b6974bf4c5dda152d2041d7489b9c7b7208e69566
202 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting a phishing or scam attempt. The embedded link 'https://ttraff.com/wb?keyword=convert%20jpg%20to%20searchable%20pdf%20online' is identified as a malicious redirector. The document body, though heavily obfuscated, contains a similar URL and a call-to-action phrase, reinforcing the lure to click the link. The ML classifier strongly flags this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wb?keyword=convert%20jpg%20to%20searchable%20pdf%20online In PDF document text
    • http://files.stuartcrouch.net/uploads/1/3/2/6/132695428/4416860.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/1/0430/7006/2754/files/letobugivojofifegadijap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2318/7616/files/binakilorelej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9065/4885/files/luzewumomoma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1231/7603/files/basel_iii_finalising_post-_crisis_reforms_summary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sejil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2535/7206/files/bolimokuvukilopo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9627/6128/files/zafiwozugapulafuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1355/4855/files/lobiwonowinofajimoma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7379/7285/files/43390759225.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6510/6847/files/72954239862.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0549/2904/files/90763225981.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3950/5054/files/adada_malada_song_free.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_off00005e0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E0C 5600 bytes
SHA-256: 70228da6e349ae8cc564b2d125fe11f96b7b6c5e742282f58df60a5a8881401d
font_01_sfnt_off00007117.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7117 10308 bytes
SHA-256: 1e3c947a4538a48220a8737f1240c9f02dc28242281794b6da2cdd01c4eb2861

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