Malicious PDF — malware analysis report

Static analysis result for SHA-256 388949f2d1988f31…

MALICIOUS

PDF

45.7 KB Created: 2020-08-10 14:49:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 747ee99dec7786937c150d00b5f37083 SHA-1: 7aa9ace66a353d943d759e992e8f5966d43b47ac SHA-256: 388949f2d1988f31c041b4446019a14184b4fa9ceeb0640d6f80466338527232
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=pdf+attachment+in+mail+php'. This indicates an attempt to redirect the user to a malicious site. The document body also contains this URL and numerous other links, many hosted on Shopify, suggesting a link farm or content distribution network used for hosting malicious files. The primary attack pattern is a lure to click a malicious link disguised as a PDF attachment.

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.cc/pify?keyword=pdf+attachment+in+mail+php In PDF document text
    • http://files.bradysbendhistoricalsociety.org/uploads/1/3/1/4/131438260/5045996.pdfIn PDF document text
    • http://rarefo.dignityshouse.org/uploads/1/3/0/8/130874232/niril-razubaw-radikuzi.pdfIn PDF document text
    • http://files.villagesbmwzclub.com/uploads/1/3/0/9/130969235/1be39e0ee0.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/1/0431/0119/2352/files/32762077541.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5698/8311/files/wuxixipolozufezapeteviwag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8278/4673/files/34447285299.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9825/8073/files/virago_owners_group.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1020/3556/files/beginner_s_mind_zen_mind.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8423/4398/files/75388038102.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9881/6150/files/sofivulavefuvup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fulefevizurosojasi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8234/2815/files/kejijokofixinolejapixagit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6902/1091/files/behave_sapolsky.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1512/7708/files/botirobazefobumo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2945/5263/files/fowunilumelurake.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 5

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_off00006738.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6738 5124 bytes
SHA-256: 3f8b80fdb8f488b0c5accbe82b1494c4f0d2a91e895d0b376af5edf63a5a54ef
font_01_sfnt_off00007880.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7880 15824 bytes
SHA-256: b39a212569c3002ee96d40f25ae590e0caa15d5055139e7c703f566cb8306bdb

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