Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1bc5efdf267efb4…

MALICIOUS

PDF

35.2 KB Created: 2020-08-05 04:38:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7cf1e6087371c5176b2be439f10b08e6 SHA-1: 1e7daf9f33f46524844d30c4503f1ba17539d4ed SHA-256: d1bc5efdf267efb4142070711325b439c0e62d687813e67e25fcf80f0cc7b17e
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify domains, suggesting an SEO link farm. One critical heuristic identified a redirector link to 'ttraff.com', indicating a malicious redirection attempt. The document body, though heavily obfuscated, contains the same malicious URL, reinforcing the intent to redirect the user. 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.com/pify?keyword=kundalini+shakti+pdf+download In PDF document text
    • http://files.youngerman-art.com/uploads/1/3/1/4/131438604/tekubuzuvuzezoraluxi.pdfIn PDF document text
    • http://files.2redpens.com/uploads/1/3/2/6/132681294/wasofik-negago-tabulif.pdfIn PDF document text
    • http://files.abwamdcap.org/uploads/1/3/0/7/130738722/e387f3f2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6193/6285/files/64863062952.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6406/6209/files/zasukolut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0718/0954/files/arcadismo_brasileiro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/xobimijuforazuwokizumezib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7574/7483/files/21680132788.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0141/3795/files/99952010915.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0200/3615/files/canadian_dollar_abbreviation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8588/9689/files/typewriter_sound_effect_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xakisone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6159/9656/files/wezedajiwitakenasovu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6211/7020/files/30680180977.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1713/2456/files/advantages_and_disadvantages_of_extensive_reading.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000041c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41C0 4920 bytes
SHA-256: fe363d2c086e969f5e7333800479a6cd644c0a8eb8ffaa0d7dd267f247b69a69
font_01_sfnt_off0000527e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x527E 9248 bytes
SHA-256: 39aeb2b28800b1ce6fefeba7aa91b82cae987f11e9eae3a8488a9ef4b59add61
font_02_sfnt_off000071f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71F7 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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