Malicious PDF — malware analysis report

Static analysis result for SHA-256 954abcfb7d931297…

MALICIOUS

PDF

42.4 KB Created: 2020-08-11 01:32:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1afd9b60564b6bc70315e00614039361 SHA-1: 38d2637b31ef3288f2c4cffb5ce001cab2fd70bb SHA-256: 954abcfb7d931297a6c8c5420a8841447206cd958c84aa435c90276340578d62
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, specifically 'https://ttraff.cc/pify?keyword=wrist+exercises+pdf+aaos'. It also exhibits characteristics of a PDF link farm, with numerous external links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains the same malicious URL and appears to be a lure for 'wrist exercises pdf aaos'. The presence of a visual download button heuristic further supports a social engineering attack. The primary attack pattern involves tricking the user into clicking a malicious URL disguised as a legitimate document.

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.cc/pify?keyword=wrist+exercises+pdf+aaos In PDF document text
    • http://files.tedlandonline.com/uploads/1/3/1/4/131453967/0467f.pdfIn PDF document text
    • http://files.santekorwestisland.com/uploads/1/3/2/8/132814544/4666134.pdfIn PDF document text
    • http://lasejad.psvideography.com/uploads/1/3/0/8/130814328/256eddb6d3e04.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/1/0434/0603/3052/files/administered_price_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1897/7443/files/2106133963.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4553/5400/files/brucellosis_in_pregnancy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4728/1062/files/7th_chords_piano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5325/9679/files/nuzufovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/35209966956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3314/0127/files/13835304037.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2721/0144/files/biochemistry_mbbs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7334/7488/files/98102680080.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6753/1673/files/counter_strike_source_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7857/3464/files/wumina.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_off0000647c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x647C 5200 bytes
SHA-256: 4063374be8fa0ae6b1dd50384f0d38cea0a3eb4a9d7023de0ec4e41191459778
font_01_sfnt_off00007647.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7647 12040 bytes
SHA-256: 36811d62da5fe4af3cec6fff7cf386732f9cfc3844fde5cc9304df1e773be969

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