Malicious PDF — malware analysis report

Static analysis result for SHA-256 039675dbf97ce7a2…

MALICIOUS

PDF

45.8 KB Created: 2020-08-11 17:01:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fbbeaf72b80e060648364f346548ac88 SHA-1: ceefe3bd102cc3f031ea029a56e92846298e4878 SHA-256: 039675dbf97ce7a269ce331eaf1efd65753f09a08c887193765230b71c6e2e97
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, specifically a link farm designed for SEO manipulation. The document body and heuristics indicate a lure for a 'pdf to word converter' to trick users into clicking the malicious redirector URL. Although no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to lead the user to a malicious site, likely for phishing or malware distribution.

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=pdf+to+word+converter+best+software+free+download In PDF document text
    • http://files.bagsofelegance.com/uploads/1/3/1/3/131398504/kenixer.pdfIn PDF document text
    • http://files.awakening-spirit.net/uploads/1/3/2/8/132814342/mopuz.pdfIn PDF document text
    • http://jaxix.alysongreenjewellery.com/uploads/1/3/0/8/130874359/9bbbf445ce2d2d.pdfIn PDF document text
    • http://files.rietakeda.com/uploads/1/3/1/1/131164260/liwuzopopo.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/1/0428/5480/9759/files/27498518727.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6150/0309/files/39666686246.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6317/2502/files/raw_karambwan_osrs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6241/8847/files/26091999113.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4202/9215/files/introduction_of_diazonium_salt.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5327/6574/files/xidofawazujidoduwuwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3714/7811/files/zisewebikegebalunexages.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6799/8362/files/morotalulakawemaze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0644/3176/files/warhammer_codex_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3979/3050/files/66227038873.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9240/1573/files/xuluzepexuvogobubuge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8818/7293/files/derivative_all_formulas_download.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_off0000682d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x682D 5048 bytes
SHA-256: fac59456b6d7220b5962fa82a86b550d202c50e62b14efa847db0bc40b52da85
font_01_sfnt_off0000796c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x796C 10096 bytes
SHA-256: b080423633c140fcd833b2910391a4b9ae8386e8e21b6749ceaea2971d289596
font_02_sfnt_off00009bfb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BFB 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3