Malicious PDF — malware analysis report

Static analysis result for SHA-256 01bb67a8c94104d5…

MALICIOUS

PDF

63.7 KB Created: 2020-08-06 18:23:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ae763038e5874802ce71ed91936e5889 SHA-1: 618c87cdde588d6a8d9f395160a9d7298dade7ac SHA-256: 01bb67a8c94104d5d569b79e5b3bafc7f6d85203c546d24a30b7f34181f0b464
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to a redirector service (ttraff.ru) which is flagged as malicious. The document body, though heavily obfuscated, contains a URL that matches the redirector, suggesting the primary purpose is to drive traffic to malicious infrastructure. The presence of many PDF links and a redirector URL indicates a link farm or SEO poisoning tactic to distribute malicious content.

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=basic+clinical+chemistry+tests+pdf In PDF document text
    • http://files.parkhillbowlingclub.com/uploads/1/3/2/8/132815154/4047543.pdfIn PDF document text
    • http://files.deepbluefiji.com/uploads/1/3/0/7/130739444/wejalugidaza_bolukutit.pdfIn PDF document text
    • http://files.andrewtozerfineart.com/uploads/1/3/0/7/130739713/6643bd0b520.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/1/0433/0687/7080/files/xibazukikamemawamiwemin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5007/4269/files/jarufogakeba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2767/6829/files/18722332260.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6799/8359/files/53917261770.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1434/9215/files/p90x_classic_schedule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7827/7527/files/retardation_test_on_dc_shunt_motor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6591/5032/files/83906258219.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3882/6918/files/83635070458.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5270/9526/files/videojet_excel_170i_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1359/4526/files/72497141460.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5502/8126/files/js_base64_to_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6638/3770/files/shipping_up_to_boston_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9635/8565/files/gta_5_cheat_codes_ps4.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_off0000b7a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB7A6 5544 bytes
SHA-256: 653bb21174b88526d3fa119dc9ba55f28f2c18bd0259805411dff2f460bc634e
font_01_sfnt_off0000ca5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA5D 12232 bytes
SHA-256: 016c15b0b75ff4baf12cad6622583e481a6cb3f23ac884255d57398a6156bf26

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