Malicious PDF — malware analysis report

Static analysis result for SHA-256 56f677242105d8f6…

MALICIOUS

PDF

44.5 KB Created: 2020-08-05 17:59:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6009934534b97be6fe613fb09fc80fe2 SHA-1: ca92d82ec6b9ad94a32f10eccfb8ef712b3c49cf SHA-256: 56f677242105d8f686ffabe6009b6a49545c3ecea434b29209aca7284ea75c11
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link

The PDF file contains numerous embedded links, a common tactic for SEO spam and redirecting users to malicious sites. One critical heuristic identified a PDF link to a known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=time+value+of+money+questions+and+answers+pdf'. Another heuristic flagged the document as an advance-fee scam lure, suggesting the links are intended to trick users into fraudulent schemes. The document body, though heavily obfuscated, contains the same URL, reinforcing its malicious intent.

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=time+value+of+money+questions+and+answers+pdf In PDF document text
    • http://files.veescape-info.com/uploads/1/3/2/6/132682868/9365733.pdfIn PDF document text
    • http://files.fortytwobooks.com/uploads/1/3/1/3/131398374/ba49261c1e.pdfIn PDF document text
    • http://files.courtneyenos.com/uploads/1/3/1/4/131407067/4625632.pdfIn PDF document text
    • http://files.nursingandpublichealth.org/uploads/1/3/2/6/132681199/kirusebut.pdfIn PDF document text
    • http://files.theorrickbuilding.com/uploads/1/3/1/4/131483154/gusojida.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/1/0431/8245/7000/files/10236984883.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6980/8548/files/digivajolodozo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8843/7655/files/82869864534.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5251/4971/files/pewuvugojivojoguten.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8201/4108/files/sibivoxizolovogoxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6158/3776/files/keras_functional_api.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0350/1989/files/95961276019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5875/5749/files/kekojok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3434/3574/files/anamnesis_dan_pemeriksaan_fisik_anak_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7664/0156/files/vuzerivuxopisepisepetufis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8996/1884/files/97853484330.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_off00006db6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DB6 5516 bytes
SHA-256: 972ae8a33087d7d65cb839e145cefbf07c52cfd5d6e1109b20abce0b0fe85fc3
font_01_sfnt_off00008081.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8081 10684 bytes
SHA-256: 87b649dedac35fa2b4956cc0cacf5fbeb9385c44b204d4b4ecb577aa503891f0

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