Malicious PDF — malware analysis report

Static analysis result for SHA-256 063faafea6085071…

MALICIOUS

PDF

47.8 KB Created: 2020-08-08 21:25:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 15817d7e966dccc8605c8c24570886e1 SHA-1: 52952a1a02c8011d105edefa5a890231de63195b SHA-256: 063faafea60850716058fc44257fc87a0cc7a2eb034ce18fb630daae64d5f322
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector URL disguised as interview answers, indicating a phishing or malicious download attempt. The ML classifier strongly supports the malicious verdict. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to redirect users to malicious infrastructure.

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=tell+me+about+yourself+interview+answers+pdf In PDF document text
    • http://files.photoforanyoccasion.net/uploads/1/3/1/0/131070485/c9a2c018dcd.pdfIn PDF document text
    • http://teputewi.clickfourhelp.org/uploads/1/3/1/4/131453041/punetipinilavulelo.pdfIn PDF document text
    • http://files.rebeccabeaird.com/uploads/1/3/0/7/130739628/caf4a1.pdfIn PDF document text
    • http://vamape.gayatriyogaacademy.com/uploads/1/3/2/6/132681670/musujilubotebid-lebifelofo-zipatojuv.pdfIn PDF document text
    • http://files.dontdate-her.com/uploads/1/3/0/7/130775735/5584394.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/1/0431/8222/7617/files/fuzixizun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bifivejeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2737/1931/files/sanesapafoxafopaxavanemat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2785/5517/files/330765705.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9724/2280/files/jofofowomowevumilupa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3761/4499/files/nukodonetuxopigevagil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0897/4235/files/53212032412.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2107/2546/files/shakespeare_quotes_on_life_lessons.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1887/1207/files/tijasemuzege.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3497/6157/files/wistron_astrosphere.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1804/4063/files/5426884769.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5583/2469/files/download_ios_9._3._2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7291/2549/files/pifobapokobudapena.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_off00006e39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E39 5412 bytes
SHA-256: 51361cc216f52ef978ab887fcc252c459e0e112e210f25cfd776d7771f514bf4
font_01_sfnt_off00008099.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8099 10316 bytes
SHA-256: 3c1385a99dcefb311c5f7523b997e115c8b3c21b2e70ca61f69b8aa81073aca1
font_02_sfnt_off0000a3dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA3DD 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176