Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4849daf792be663…

MALICIOUS

PDF

37.1 KB Created: 2020-08-25 15:55:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8ec33953b0f5fbbf7ca958349733b38e SHA-1: 33ea56cb7d7f1e4e3eb61d5d212dbee7f556b7dc SHA-256: c4849daf792be663538268f19914d7b9cf6a09e72e157d0a48c7405b0e3201d7
194 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.com, which is designed to lure users to further malicious content. The document body, though partially corrupted, contains text related to 'Algebra nation section 1 topic 3 answers' and the malicious URL, suggesting a phishing or scam attempt. The presence of numerous embedded links, many pointing to Shopify, indicates a link farm strategy, likely to obscure the ultimate destination or to appear more legitimate.

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=algebra+nation+section+1+topic+3+answers In PDF document text
    • http://files.nc-xh.org/uploads/1/3/0/8/130813366/40568.pdfIn PDF document text
    • http://files.businesstestsite.com/uploads/1/3/0/7/130776420/b6464d3da76.pdfIn PDF document text
    • http://files.newsongwellness.com/uploads/1/3/0/8/130813448/c08b4b5f0f.pdfIn PDF document text
    • http://files.jackalopehq.com/uploads/1/3/1/0/131070581/6330634.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/1/0440/5621/5702/files/vocabulary_character.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6857/1294/files/47208164969.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2308/8290/files/contractions_spelling_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4023/3880/files/3724426322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5864/0549/files/calendario_de_vacinao_atualizado_2020_ministerio_da_saude.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/0714/3076/files/cetosis_en_ganado_lechero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/8962/9085/files/dark_souls_2_dragon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7418/1534/files/gungeon_weird_egg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2433/4498/files/70376701322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/76957488457.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1456/9631/files/ultrasound_guided_cortisone_injection_shoulder_cost.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 5

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_off000046e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46E4 5324 bytes
SHA-256: 1edf311d11f2a410041c6e1d0cbff2c62aa6fdf5424cd08dbd0d78d266e41907
font_01_sfnt_off00005917.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5917 9676 bytes
SHA-256: 0a884c83a464ba68ad72b1a84dc966ea9354347cba6eadce66207491c75a4af8
font_02_sfnt_off00007965.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7965 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

Open this report in the interactive analyzer, or submit your own file for analysis.