Malicious PDF — malware analysis report

Static analysis result for SHA-256 88bbeab0b82823a9…

MALICIOUS

PDF

42.7 KB Created: 2020-08-16 00:58:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e6fb9e95397f28e684134fb85f54a698 SHA-1: 48973375f73ee08736fb0a7452bd63ef56f34130 SHA-256: 88bbeab0b82823a901ba75b423b2c59b518c15ecd1d18bdaeb6f68d8d45f7198
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.ru) which is flagged as malicious. The document body, though heavily obfuscated, also contains this redirector URL and benign-looking Shopify PDF links, suggesting a link farm or SEO manipulation tactic to drive traffic. The primary malicious IOC is the redirector URL, which likely leads to a phishing or malware download page.

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.ru/pify?keyword=anatomy+and+physiology+chapter+9+articulations+answers In PDF document text
    • http://lexojoj.shadesofartistry.com/uploads/1/3/1/4/131438684/latibefemuti_semakab_segosefipe_kabefiwinalovo.pdfIn PDF document text
    • http://files.themoveablechurch.org/uploads/1/3/0/8/130874128/9175303.pdfIn PDF document text
    • http://files.gigilynfineart.com/uploads/1/3/0/8/130815303/patifipebararo_letadul_tezuwexiz_famovemipovali.pdfIn PDF document text
    • http://tanog.kawh3.com/uploads/1/3/1/1/131163864/2313275.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/1/0428/0870/5187/files/99009494225.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/41326774972.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5625/9491/files/43134558283.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1970/6279/files/aramaic_lexicon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7650/2182/files/51574269267.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1977/9742/files/57521456704.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3865/2069/files/manhattan_sara_bareilles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2072/2080/files/dogepaxaxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7935/9900/files/beamforming_matlab_source_code.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 8

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_off000065b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65B7 5824 bytes
SHA-256: 5e2f487bba2fb5c5885a49cac3282455e78bfde5ca7537cd5e7672e7b279b0d3
font_01_sfnt_off00007970.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7970 10560 bytes
SHA-256: f1eb8beeb2e0ec1a2fd4af4d0c190c48777c9d27c4478514f9c43df86279b83c

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