Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ea2075acb04f3a6…

MALICIOUS

PDF

41.2 KB Created: 2020-08-08 14:19:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 50a6b98ab44dd983be47b34b86c099f9 SHA-1: d13e31e5a5f8fb25f854909e7470f5ced6fea63d SHA-256: 3ea2075acb04f3a6d30492232c2752e9bf726e2856b8805500c6a4df1fec91c3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.001 Malicious Link

The PDF file contains a large number of embedded links, many of which point to external resources, indicating a link farm. One critical heuristic identified a malicious redirector link, 'https://ttraff.ru/pify?keyword=social+media+addiction+scale+student+form+pdf', which is likely used to redirect users to malicious sites. The document body, though heavily obfuscated, contains text related to a 'social media addiction scale student form pdf', suggesting a lure to encourage clicks on the malicious links. No scripts were extracted from this sample.

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=social+media+addiction+scale+student+form+pdf In PDF document text
    • http://files.toddherzberg.com/uploads/1/3/1/4/131438389/pononovimu.pdfIn PDF document text
    • http://files.africaeuyouthlab.org/uploads/1/3/0/7/130738597/adf3c3b18.pdfIn PDF document text
    • http://files.dlspiritdolls.com/uploads/1/3/1/3/131379205/5462621.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/1/0431/4192/2982/files/42745694921.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1692/0996/files/buick_intellilink_hack.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/bafonitali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1360/3491/files/27302730110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1767/4656/files/fopolimod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3123/1655/files/digital_electronics_tokheim_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9282/8579/files/detafobevoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0490/3073/files/polugovis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3254/1344/files/fatit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4929/5776/files/present_simple_activities_for_beginners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7679/4021/files/25705933900.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4607/4525/files/noneparexewonazugalejuja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1793/5770/files/70270714444.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_off0000624a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x624A 5404 bytes
SHA-256: 3bc863d75428903aa3afb435146961113fc4e689c1271e1f2f1796f63109aee9
font_01_sfnt_off00007495.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7495 10332 bytes
SHA-256: 80794e055ed554d48fdad016180d9c89bd3734c48b2c1468306aab1c8a6c100b

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