Malicious PDF — malware analysis report

Static analysis result for SHA-256 01e8aa0b2f0e4309…

MALICIOUS

PDF

50.2 KB Created: 2020-08-19 14:13:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c8642749df469d61a3ec01b39b6f8e00 SHA-1: c17dda51831bce46463528bd02794d402e7eef89 SHA-256: 01e8aa0b2f0e4309330e1fb9716a4375bd82d95c70fe2e8d4ec4e61fb4e8af0b
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing indicating it points to known malicious redirector infrastructure. The document body and heuristics suggest a lure for phishing or malware distribution, likely using a link farm to obscure the malicious destination. No scripts were extracted, but the presence of embedded URLs and the ML classifier's high confidence score support this assessment.

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=baba+yetu+pdf In PDF document text
    • http://jokodasab.fastandforeverfoods.com/uploads/1/3/1/4/131483109/wisagafozi_wewufexo_ferelofefi_vifegizobef.pdfIn PDF document text
    • http://files.containerconstructionpros.com/uploads/1/3/0/7/130740323/janetu.pdfIn PDF document text
    • http://files.canterburynorthwestern.org/uploads/1/3/0/7/130739251/6ff5e8e2c9bd.pdfIn PDF document text
    • http://files.plan-my-trip.eu/uploads/1/3/0/7/130775284/7043385.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/1/0428/2315/5878/files/lozutazabute.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4416/6037/files/arabic_to_word_converter_online_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1146/5638/files/gozetolurojuzumakega.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5369/4626/files/biblia_de_estudio_reina_valera_1960_holman.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6237/0210/files/mugesezola.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3598/9915/files/lojaxizedafarevubupef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7147/1767/files/bernard_lewis_kitaplar.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000087dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87DD 5020 bytes
SHA-256: 972fad7a0cff9f329d783760d9a6168d9fe03365b61f04c9e1e2c477273a3733
font_01_sfnt_off00009909.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9909 10420 bytes
SHA-256: bacaab26f3436605dc4334cbe741c6ae236236d1de15e5d2fb65eb745ba23c76

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