Malicious PDF — malware analysis report

Static analysis result for SHA-256 492b9b2ad1a99cb5…

MALICIOUS

PDF

44.3 KB Created: 2020-08-21 05:32:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 177a81a66e2ccc8b7cf9e7037c42ea2d SHA-1: 01dcee7a9dee8005587a06987ffe7c8a514552a9 SHA-256: 492b9b2ad1a99cb549b67c8a7e4c88af6d0d02a4a4b534cfe92a2022634d76b8
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of these links, 'https://ttraff.cc/pify?keyword=atmel+studio+6.+1+free', is identified as a malicious redirector. This suggests the document's primary purpose is to redirect users to malicious sites, likely for phishing or malware distribution.

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=atmel+studio+6.+1+free In PDF document text
    • http://files.adaofny.com/uploads/1/3/0/8/130814432/7826242.pdfIn PDF document text
    • http://files.ivoryemily.com/uploads/1/3/2/3/132303407/1929298.pdfIn PDF document text
    • http://files.pathwaysretreat.org/uploads/1/3/0/8/130813645/legufuvav-tufodevewub-degowu-zizaw.pdfIn PDF document text
    • http://dikudo.centerlightmagazine.com/uploads/1/3/0/7/130776031/pogimabibut.pdfIn PDF document text
    • http://sudug.oeufrier.ca/uploads/1/3/0/7/130740117/2522313.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/1/0462/2925/8389/files/alternative_energy_systems_and_applications_hodge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5777/3725/files/27515776111.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2862/8135/files/physx_loader_dll.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3486/9921/files/broken_crown_mumford_and_sons_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9562/1796/files/tevipaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0090/3318/files/menejaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8868/2916/files/89510090967.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6926/8383/files/data_comparison_between_two_excel_sheets.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 6

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_off0000701f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x701F 5068 bytes
SHA-256: 274acc53a8b325a2ffffceee0fd1641560684331687666588697c2e861b3122b
font_01_sfnt_off00008158.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8158 10460 bytes
SHA-256: 41b142cd39dafc1ddc7e8d2d127bc779480dd7efd79a9856348160fa61b769bc

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