Malicious PDF — malware analysis report

Static analysis result for SHA-256 14091c343b5c9138…

MALICIOUS

PDF

42.2 KB Created: 2020-08-23 22:57:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 37fcf6b18ef70f2753c5cb6495b25e26 SHA-1: 0f831ebc0ef6e56d0b3118c89b2e52ff4331e300 SHA-256: 14091c343b5c91383ce1694580a335e4033cba6cba3fe5f173e8a4cb308b49a7
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a redirector URL, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains text related to interview questions and the malicious redirector URL. The ML classifier strongly flagged this PDF as malicious, and heuristic rules identified it as a redirector link and a link farm.

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.com/pify?keyword=dental+front+desk+interview+questions+and+answers In PDF document text
    • http://files.nbarmichigan.org/uploads/1/3/2/7/132741241/dujevukife.pdfIn PDF document text
    • http://fevixim.junewebsterart.com/uploads/1/3/1/8/131856827/5166129.pdfIn PDF document text
    • http://files.aplusephoto.com/uploads/1/3/1/4/131455956/123275d345ecc0.pdfIn PDF document text
    • http://files.shaunstournaments.com/uploads/1/3/0/7/130776151/kivosaxaxegaj-geradoba-nupidak-doroxor.pdfIn PDF document text
    • http://sanusef.globalrelocationsolutionsinc.com/uploads/1/3/2/6/132681352/legotof_sogow.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/1/0439/1596/8667/files/corporate_accounting_amalgamation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6382/6840/files/rearranging_equations_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9959/4656/files/python_programs_for_practice.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8581/6218/files/jebugiturupuvaxudofog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0659/0106/files/xuxipaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1440/5793/files/3809052964.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0595/9574/files/58287717033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7329/6789/files/51746902344.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9633/4753/files/63532215364.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nemevisofopanufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1179/1257/files/1053817131.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
🗂 Part of campaign: asklisaraimondo.com 5 samples

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_off0000685a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x685A 5244 bytes
SHA-256: e7456e3af0913036a589030249158e99ad6050d18152764bf8a93d95a6f990d1
font_01_sfnt_off00007a54.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A54 9776 bytes
SHA-256: c5bd13d24b2c047f5d987fcd77fa7ab0767de69a17d33569bddd89a3d46d1315

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