Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f914677e29ca782…

MALICIOUS

PDF

32.9 KB Created: 2020-08-19 05:50:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aaeec070d07afebead11d819dcfdfdcd SHA-1: f99eb00520e1f0cb69ed1e008e71a63e1aa40718 SHA-256: 5f914677e29ca7828645063ad04e93eed8a7d928bd52f2f6a70b543417e28f41
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 (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL and a list of other PDF links hosted on Shopify, suggesting a link farm or SEO poisoning tactic to lure victims. The ML classifier strongly indicates maliciousness, and the overall structure points to a phishing or redirection attempt.

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=tiger+blood+in+mouth+movie In PDF document text
    • http://zotov.thesummittgroupllc.com/uploads/1/3/1/4/131408899/kigupe_mojamijoka.pdfIn PDF document text
    • http://files.healthyandfitwny.com/uploads/1/3/1/3/131380687/1328a29.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/1/0433/5504/6037/files/89426098791.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6873/5140/files/xojesutabexebobegumuravo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7678/8117/files/free_maya_models.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3939/0872/files/.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8191/5802/files/chapter_3_maths_class_10.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6083/0116/files/57928345502.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0209/9873/files/lp_bronkopneumonia_pada_anak_terbaru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8125/2512/files/xewuzogexot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0128/1703/files/don_t_worry_be_happy_video_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8940/2779/files/91572473742.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_off00004474.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4474 5000 bytes
SHA-256: df408ad15ea3c76744c60253d8e606a442fd4380011dc8158c36ca066627e5dc
font_01_sfnt_off00005548.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5548 9980 bytes
SHA-256: 21b1c3b5fbecbf3d91cb89efc6f00cc20331b678fea6e89edb2977901d945144

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