Malicious PDF — malware analysis report

Static analysis result for SHA-256 d51ccfea97bf5d98…

MALICIOUS

PDF

59.1 KB Created: 2020-08-05 18:04:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 980958521c56aaf5a5163facea38a69c SHA-1: 53348685148594d29ba79cc9c456447bc4ff4f37 SHA-256: d51ccfea97bf5d984d4e44d8617de159bcf67cc6ae2d6752124164ebd4973aa3
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is designed to lure users into clicking on further malicious links. The document body references 'Adobe after effect tutorial for beginners pdf' to disguise the malicious intent. The presence of numerous external PDF links suggests a link farm or SEO poisoning tactic to distribute the malicious PDF.

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=adobe+after+effect+tutorial+for+beginners+pdf In PDF document text
    • http://files.prideofpa.com/uploads/1/3/2/3/132303410/7575708.pdfIn PDF document text
    • http://files.jackiecheuvront.com/uploads/1/3/0/7/130775471/5672496.pdfIn PDF document text
    • http://files.fullcanopy.com/uploads/1/3/0/8/130814596/a3d1761bd72.pdfIn PDF document text
    • http://files.bakemydayacadiana.com/uploads/1/3/1/0/131071063/polijebaf.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8714/8709/files/22428288773.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6971/8182/files/paxalabidawekadur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6222/3263/files/48849211810.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5336/5910/files/jowuxofesakulewila.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/6565103434.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1720/6949/files/zixafuxiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4245/5207/files/serway_college_physics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1633/1172/files/31676836394.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2399/7856/files/summer_waves_pool_pump_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0637/7632/files/13623381932.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5332/5224/files/xovagexovizewuwirax.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_off00009ba1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BA1 5332 bytes
SHA-256: 5b5147d4abaa674ca594b28ae92978567b6db6b031c26a75c5b5a6bb3d59fe41
font_01_sfnt_off0000adcb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xADCB 10304 bytes
SHA-256: 6d3bf76e9f9da405337e5a1c3369d7abc9a44e0f4abef2a868fcb08236d01efc
font_02_sfnt_off0000d0fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0FB 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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