Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b16dd4fd3432cf1…

MALICIOUS

PDF

40.5 KB Created: 2020-08-20 03:52:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f6a65ad728a232f2e8c1fb95cec282e7 SHA-1: a6d6d25e55d5b79330eea5a71220ff8d4a47826e SHA-256: 5b16dd4fd3432cf1660e565327bb4c32bea922d123df39f522c22f9b85580bea
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 document body, though corrupted, contains text related to 'business folder template' and a URL that points to a redirector. The presence of numerous links, many pointing to Shopify, but also including a suspicious domain, indicates an attempt to distribute or lure users to malicious content.

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=business+folder+template+psd In PDF document text
    • http://supexez.europeanmasterswl.com/uploads/1/3/2/6/132681862/2699431.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/1/0434/5279/2982/files/que_es_riesgo_relativo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1053/1238/files/96166894115.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/9765/7248/files/2nf_vs_3nf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7247/1718/files/brute_lawn_mower.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8297/3346/files/82139659946.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9757/0980/files/jovot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6636/8935/files/springboard_algebra_2_unit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5023/7085/files/gezodojetofa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3848/2332/files/lobozigiminap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6753/1673/files/25417720156.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0754/1401/files/gebonegotavepafevela.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5235/8042/files/pifukozawupotaf.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006063.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6063 5236 bytes
SHA-256: 6495b4dbad0b191c35d4221b8f8c1b1bc03d68f68adc8a1ed59bec2b9c1ed190
font_01_sfnt_off00007210.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7210 10352 bytes
SHA-256: 8ac6cb5703eb1fa4b1c75f37d49f099210445b7eb174733a851e877e8ace9fdf