Malicious PDF — malware analysis report

Static analysis result for SHA-256 889bef7ae5cc8794…

MALICIOUS

PDF

53.7 KB Created: 2020-08-03 17:47:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 62f6d15f1c971b2c125b145aa0b11bb6 SHA-1: 3bfb74e6e1304ee562609801d295eec612c652ed SHA-256: 889bef7ae5cc87948d8b661381b60f8717179c24cc0501e928dbf987b2c2cfdd
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which point to a redirector service designed to obscure the final malicious destination. The primary redirector URL is `https://ttraff.ru/pify?keyword=deep+breathing+and+coughing+exercises+pdf`, which is flagged as malicious. The document body, though heavily obfuscated, also contains this URL, suggesting a phishing or scam lure disguised as a helpful document. The ML classifier strongly indicates maliciousness.

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=deep+breathing+and+coughing+exercises+pdf In PDF document text
    • http://files.flos5dollarhouseofbling.com/uploads/1/3/2/8/132815882/bigokona-taxilujiwozaniv-nawipegefonok.pdfIn PDF document text
    • http://files.sandylanhamphotography.com.au/uploads/1/3/2/6/132681210/1237855.pdfIn PDF document text
    • http://files.seetheworld.tours/uploads/1/3/2/8/132815961/bawifutopite.pdfIn PDF document text
    • http://files.sydmocreativeco.com/uploads/1/3/0/9/130969151/926063d9920a394.pdfIn PDF document text
    • http://selumasup.pupfishcafe.com/uploads/1/3/1/1/131163635/gotudux_zeturokabed_fufaxegevub.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/1/0433/9322/0758/files/3808773837.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6381/1999/files/50462282713.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8424/3351/files/75180558585.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5238/1846/files/nejabofewobezineg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0665/6666/files/23567713846.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5618/4996/files/nuveriwejokogudoleliwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2958/4293/files/mr_biggs_contagious.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2139/4343/files/bls_instructor_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6374/6453/files/employment_application_form_texas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4496/1442/files/73621255278.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2201/6934/files/11104372005.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9324/5590/files/cognitive_behavioral_therapy_adhd.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000075f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75F5 5476 bytes
SHA-256: 5c5235553166b348fba7d4ad7e7e3ee7161ab56f0baccd1931b575d3f26fd547
font_01_sfnt_off00008887.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8887 16144 bytes
SHA-256: 005f6a44afd69f30cf92524aa759caba3b2e96d73810b96f4336348f36cdd88b
font_02_sfnt_off0000bb17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB17 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361