Malicious PDF — malware analysis report

Static analysis result for SHA-256 943a01523b363bc9…

MALICIOUS

PDF

42.8 KB Created: 2020-08-05 06:02:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8ad20be7324b08a210e2b293cba1219d SHA-1: 86ef7c608c890c6d39beb4e143f7029813eb3340 SHA-256: 943a01523b363bc9188990b33a8565234468502a87dfa300734b1feb8dfeca41
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF file contains a significant number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic. One of these links, https://ttraff.cc/pify?keyword=correspondance+albert+camus+maria+casares+pdf+espa%25C3%25B1ol, is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting the primary purpose is to lure users to external, potentially malicious, content.

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=correspondance+albert+camus+maria+casares+pdf+espa%25C3%25B1ol In PDF document text
    • http://files.aecnwa.com/uploads/1/3/0/9/130968942/mujetifefi.pdfIn PDF document text
    • http://xogekigow.tlcgardensandcrafts.com/uploads/1/3/2/3/132303382/papuxekatifone_ginekefazul_wovovozoda.pdfIn PDF document text
    • http://xoduvuda.kitsuneillustrations.com/uploads/1/3/1/6/131637649/7784417.pdfIn PDF document text
    • http://files.poehaku.com/uploads/1/3/1/6/131636745/fad0a787e.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/1/0430/0704/9877/files/9400134194.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0799/1208/files/nuzijalediwedobove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9600/7065/files/98036672333.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3167/3502/files/rigaze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8911/6836/files/34577207797.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2553/8980/files/47781203064.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8525/0216/files/ketuwalutizetuvadadexis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0536/9758/files/28147336739.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7646/0448/files/gadirezukoru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1992/7713/files/42277967427.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2327/0042/files/litebuwuxunotitot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1231/6584/files/xoxulop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/0262/9016/files/facade_yes_or_no_oracle.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 2

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_off00006623.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6623 5560 bytes
SHA-256: be09839a32930288d176a14204eb68f525d12ae99504a6a73aea2c8ede7a3f06
font_01_sfnt_off000078aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78AA 10252 bytes
SHA-256: 7dee91fe1648f60df172c080f2dea2325136bbcc3430f3ab34ecd20937d6576d

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