Malicious PDF — malware analysis report

Static analysis result for SHA-256 09f8c6db62ecab72…

MALICIOUS

PDF

38.9 KB Created: 2020-08-28 13:01:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 99952efbc3875bb1c20d94d5547c002b SHA-1: 6b1a437e50ff98d559f32624b1680aa7cb2b0240 SHA-256: 09f8c6db62ecab72b44bd361bf6988c792e81212318e92837fec630dd33e6dc2
194 Risk Score

Malware Insights

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

This PDF document contains a large number of external links, many of which point to a redirector infrastructure. The document body, though heavily obfuscated, contains a URL that appears to be part of a lure for 'Delonghi Nespresso machine instructions'. The presence of numerous links and the redirector suggest an attempt to drive traffic to malicious or phishing sites. No scripts were extracted from this sample.

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=delonghi+nespresso+machine+instructions In PDF document text
    • http://wofirow.cassinsackett.com/uploads/1/3/2/7/132741555/ae5f7f14e326.pdfIn PDF document text
    • http://bubozisa.thymesquareweddingsandparties.com/uploads/1/3/1/4/131407995/saxuvipek.pdfIn PDF document text
    • http://files.theautismhelpgroup.com/uploads/1/3/1/4/131437535/7579288.pdfIn PDF document text
    • http://files.denmarkatvclub.org/uploads/1/3/2/6/132681586/d0c8bc570bf7f.pdfIn PDF document text
    • http://files.sueglass.com/uploads/1/3/2/6/132681322/017ff7c6afe6.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/1/0431/3684/3933/files/resegojekukel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5105/6295/files/dj_terbaru_2019_senorita_x_zombie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/9882/4864/files/clash_of_clans_october_update_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6382/8895/files/88071428683.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4445/4056/files/gajeperusofuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8342/3128/files/lemuvavepezifusofudobexox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7442/7806/files/99708912782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0556/6366/files/45015254487.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0833/4744/files/4142289632.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9897/8971/files/11779063950.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2476/1507/files/zhu_faded_mp._3.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005a02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A02 5344 bytes
SHA-256: ec690f495ce464a9430cd551661930e385979a3b383425f8b07ec142a6e6eccd
font_01_sfnt_off00006c0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C0C 10116 bytes
SHA-256: 09d335d350f148e5bd43d0baf32929654f4b971c18a84204135f85be59934dab