Malicious PDF — malware analysis report

Static analysis result for SHA-256 82a2287a670d149c…

MALICIOUS

PDF

73.5 KB Created: 2020-08-02 16:41:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7bef83bad12e6da47decd83d184b0cf1 SHA-1: 6daa99b1e2cad39e399e3a0c1ce58e33b7e9a61f SHA-256: 82a2287a670d149c61324fa1feab9f50eafac6e2b7efb06cdef424b25814e7b1
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, pointing to a phishing or malware distribution attempt. The primary redirector URL, https://ttraff.com/pify?keyword=debye+huckel+equation, is identified as malicious. While no scripts were extracted, the structure and embedded URLs strongly suggest an attempt to redirect the user to a malicious site.

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.com/pify?keyword=debye+huckel+equation In PDF document text
    • http://files.the3x5club.com/uploads/1/3/1/3/131383651/kekifojegav-mimevaferigex.pdfIn PDF document text
    • http://files.rockymountbc.net/uploads/1/3/2/6/132681038/8645252.pdfIn PDF document text
    • http://files.aegisve.com/uploads/1/3/2/6/132681295/vogeve-jekika-xomijipifeturo-binulebozudet.pdfIn PDF document text
    • http://files.prairiedusttrail.com/uploads/1/3/1/1/131164275/6483673.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/1/0432/5857/7046/files/parekivutesove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7905/5000/files/26721349185.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2017/9864/files/risejikaxugopifakovewikof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9087/0423/files/78136403760.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4138/0759/files/kegigavirimopin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0096/1947/files/18263060647.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1727/9400/files/gepotinutawoli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9839/1196/files/55270289865.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0706/5757/files/24417295331.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6241/9863/files/vbscript_browse_for_file.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000baa4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBAA4 5044 bytes
SHA-256: 568a35bddd3410da826e1b99cadef703a6b5e26a5bda05af0b0b3152e5f55989
font_01_sfnt_off0000cbdf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBDF 17600 bytes
SHA-256: b822f9ccfde8126276ed4adf9829c15d81fc82370a7c0f8f12f78d04d8d9b4f1
font_02_sfnt_off00010310.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10310 16384 bytes
SHA-256: 7d13715e99e5f96ba89b89ff33e82348f50d945e3b9e21d67b8a53e320df29ae

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