Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad0a27ea1d37c18a…

MALICIOUS

PDF

44.0 KB Created: 2020-08-19 11:59:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ec4c59e5bf83735f1db51f7d7b23871f SHA-1: d40f14f65ef090c8fbdc709cf02609a492d52dfc SHA-256: ad0a27ea1d37c18ad1c8e8648af33837419f6aabcc95c7019687fabd1a130546
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains text related to 'business website templates free for asp. net' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The ML classifier strongly supports the malicious verdict.

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.ru/pify?keyword=business+website+templates+free++for+asp.+net In PDF document text
    • http://putegomat.michelle-peterson.com/uploads/1/3/2/6/132682607/filaxobaj.pdfIn PDF document text
    • http://files.oceanviewsu380.com/uploads/1/3/0/7/130775712/c4075dea8604.pdfIn PDF document text
    • http://files.capecoralkayak.com/uploads/1/3/1/3/131378950/5e63e0.pdfIn PDF document text
    • http://dapukon.macroleaders.com.au/uploads/1/3/2/8/132814930/3987192a4cb13b8.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/1/0434/0311/6709/files/nigubomo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/87967576867.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8025/3593/files/japanese_bad_words.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6856/4380/files/82728973873.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9651/3448/files/95765179988.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/9365/1610/files/anjaan_movie_songs_5starmusiq.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8908/4068/files/ximizixul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6753/9623/files/nolewebafifulilekeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6708/8800/files/6049532467.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0781/1495/files/eromski_ludzie_bezdomni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1585/6550/files/63993590112.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2371/8805/files/29091965319.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000060aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60AA 5240 bytes
SHA-256: 563cc3eb6fe51c555294994d504e8ba78e96de3e20fea3e1c6bb31035e11b5aa
font_01_sfnt_off0000726a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x726A 10032 bytes
SHA-256: de28e3cd8fa6d4aa2959a9c74e1a4ed28e311ae64f58f44bb80a2deeccfc612f
font_02_sfnt_off000094e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94E1 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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