Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfeb050cb04dfac5…

MALICIOUS

PDF

39.8 KB Created: 2020-08-15 03:12:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 48dc377782bbe4e5d040158d9263e4ef SHA-1: 42704d7eb82c4e1fadde93cba188802156e020b5 SHA-256: dfeb050cb04dfac5943594417ecf412248bb1958ec221eef398f7bd7b18485b4
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=carboline+890+datasheet'. This URL is likely used to redirect the user to a malicious site. The document also contains a large number of external PDF links, many hosted on Shopify, which is indicative of a link farm or SEO poisoning technique. The document body, though heavily obfuscated, contains references to the datasheet and the redirector URL, reinforcing the lure.

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=carboline+890+datasheet In PDF document text
    • http://files.extracoolerart.com/uploads/1/3/1/4/131438038/4115645.pdfIn PDF document text
    • http://files.smihaiti.org/uploads/1/3/1/3/131381539/gatubavi.pdfIn PDF document text
    • http://files.suzannedemontignycounseling.com/uploads/1/3/1/6/131637136/jizaluvizelukux.pdfIn PDF document text
    • http://files.seafom-friendsofmontessori.org/uploads/1/3/1/3/131379375/tatobuj-ranazulov.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In 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/1/0431/5434/2042/files/dejipewixikogise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3175/4902/files/musicas_ballet_infantil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8114/6280/files/249146987.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0462/4021/files/guvesovaridola.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7341/3032/files/hematopoiesis_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1799/3366/files/nugubamamodipumomofezagan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/4412/3302/files/ielts_general_writing_task_2_vocabulary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7342/8888/files/43628100296.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4607/4525/files/nufifiruso.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 8

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_off00005606.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5606 1560 bytes
SHA-256: 3ad774f45d0634a7484ccf6d251cc02c168bb57017bb54dca8977b2f3dc7755e
font_01_sfnt_off00005e04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E04 5448 bytes
SHA-256: 693dacbe3b52be5cbcdfceb5f82dc90a4f94bab8f00f68ec60b59016e3482f64
font_02_sfnt_off00007073.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7073 9956 bytes
SHA-256: b752dc448b1b862898e674202a6c1db63b7b1acbf5e254bdb81ad440bbbf77cf

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