Malicious PDF — malware analysis report

Static analysis result for SHA-256 870154c3b3203900…

MALICIOUS

PDF

47.8 KB Created: 2020-08-07 03:47:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6791aa6ba2816a3c443d406866b4bd87 SHA-1: 0b35e931398613c8532031c0e771d64ea6029fbd SHA-256: 870154c3b3203900a25dca52b01f4f8e296ab99fc08d884671942e971d838e47
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains text related to 'pdf download' and the malicious URL, suggesting a phishing or scam attempt. The presence of a link farm and redirector indicates an effort to drive traffic to malicious sites, likely for further exploitation or malware delivery.

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=netnography+doing+ethnographic+research+online+pdf+download In PDF document text
    • http://files.continuumsofservice.org/uploads/1/3/0/7/130739348/8115856.pdfIn PDF document text
    • http://files.skyboxct.com/uploads/1/3/1/4/131410234/28e68886.pdfIn PDF document text
    • http://files.inveniremedicos.com/uploads/1/3/1/6/131607467/694ad39.pdfIn PDF document text
    • http://files.eullallia.com/uploads/1/3/1/1/131164129/580288.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/1/0436/2086/0067/files/lodomil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9430/2117/files/49328861935.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0176/6310/files/jivuluz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0034/6270/files/rorubidikezikebafap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8676/4446/files/www_startright_bokf_com.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2535/7210/files/18850369046.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8757/6740/files/zikowonenefojuxigizirogi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2020/6758/files/nobubemupefedunuked.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1712/6567/files/12311678683.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2737/3986/files/loluw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7165/9414/files/limarigunefudixo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9008/1944/files/digogupag.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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_off000065e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65E4 5580 bytes
SHA-256: 484e638607bf054f3644ec0efe6f5f917d2dd6ff91ed28d2a34d6d08647ff561
font_01_sfnt_off000078ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78FF 10224 bytes
SHA-256: 3c602414f50e18e783fe1ac1d7371786313a1d4f885f786f07567155d2d3d42c
font_02_sfnt_off00009c24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C24 16312 bytes
SHA-256: aad9bc0f36eadc3314e08670b59090120051e308b357201f134af3d0b781b2b0

Open this report in the interactive analyzer, or submit your own file for analysis.