Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a6888d4264ffd8c…

MALICIOUS

PDF

41.4 KB Created: 2020-08-26 00:58:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7b36abae8b26806742341843a43a04e6 SHA-1: 5c11388698a914c4953d937d9d6b5cd627d4dd37 SHA-256: 6a6888d4264ffd8cd3aedd4f791f2ea872979a679a85a327a79b9638cc3e2acd
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many of which point to a redirector service (ttraff.cc) known for malicious activity. The document body, though partially corrupted, includes the same redirector URL and references to free downloads, suggesting a phishing or scam lure. The ML classifier strongly indicated maliciousness, and the presence of a link farm further supports a malicious intent to redirect users to harmful sites.

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=artist+of+life+workbook+lavendaire In PDF document text
    • http://files.gcfishandgame.com/uploads/1/3/0/8/130814633/sagavokovaj.pdfIn PDF document text
    • http://tasozo.flowersindublin.com/uploads/1/3/1/4/131454215/xidujasawovab.pdfIn PDF document text
    • http://pogili.dvelights.com/uploads/1/3/1/6/131606758/826d55e6e32615f.pdfIn PDF document text
    • http://files.brpride.org/uploads/1/3/1/3/131384495/vepulufug_xumanawozafizel_gusiwepu_teluruxaf.pdfIn PDF document text
    • http://fugigobib.everydayanewstory.com/uploads/1/3/2/3/132303382/bifegok-widifuwe-guzinogame-tamelotif.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/1/0437/5897/7178/files/motu_patlu_cartoon_free_2017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/7082322425.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/20745245188.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0168/7714/files/ministero_della_salute_roma_attestato_di_conformit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8170/9206/files/31457074606.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4606/7621/files/14596031122.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4819/8556/files/88986539123.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6116/5723/files/bamadipuzilonifugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4774/6716/files/grade_2_math_worksheets_addition_and_subtraction.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8154/7428/files/72442217372.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000063ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63AD 5248 bytes
SHA-256: 249a47e643f1b525e01ed93de9ef5dff8473ef8749b4c11143fdcfd9e3cad6f2
font_01_sfnt_off000075aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75AA 10284 bytes
SHA-256: 6c3b22790a9a9a9405ed0123fbda8a9a4fb6ecb44deddc407ff082d37d54effe

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