Malicious PDF — malware analysis report

Static analysis result for SHA-256 da84a32d5c4bd37c…

MALICIOUS

PDF

57.4 KB Created: 2020-08-09 18:01:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cae6d4618cc1c8b239291b32f51a4e0b SHA-1: 8b017eaa7d814eb27707f50a1f4db469a6c51a93 SHA-256: da84a32d5c4bd37c7d18066801ed34b57f10508e0cd3f9662b7895c55db7438d
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=public+relations+pdf+book'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, including one to 'https://cdn.shopify.com/s/files/1/0438/8916/4440/files/minecraft_pe_0._13._0_seed.pdf'. The document body, though heavily obfuscated, contains the text 'Public relations pdf book' and the malicious URL, reinforcing the lure.

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=public+relations+pdf+book In PDF document text
    • http://files.identefamilyusa.org/uploads/1/3/0/7/130738769/watid.pdfIn PDF document text
    • http://files.pierrepaulbitton.net/uploads/1/3/2/7/132712447/jutapolopalozonorap.pdfIn PDF document text
    • http://files.sequimbeacon.org/uploads/1/3/1/4/131438658/165607.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/1/0438/8916/4440/files/minecraft_pe_0._13._0_seed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9972/4702/files/nituzofatuxotid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4015/3511/files/practice_cutting_pages.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8863/4266/files/soraralosukejejizuzes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3605/5454/files/90264498390.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2230/9786/files/les_ampli_op.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9200/9379/files/43028580197.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9261/5073/files/introduction_to_exploratory_data_analysis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9886/4804/files/biblia_cronologica_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/27456029839.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3196/0474/files/gopibokufuxo.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
🗂 Part of campaign: pierrepaulbitton.net 5 samples

Related samples 4

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_off000093ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93AB 5356 bytes
SHA-256: 680030bc955fb975169ac6e2c31856891acf8f26d7f1fda4d51e0f49c4e71229
font_01_sfnt_off0000a5e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA5E6 15840 bytes
SHA-256: 685ee91fc085226fec8497e4059b8b6015b721b9a02816ee9a4f952c3ed89037

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