Malicious PDF — malware analysis report

Static analysis result for SHA-256 ace6fb888cf8eac2…

MALICIOUS

PDF

40.9 KB Created: 2020-08-06 11:35:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 987185a6820e3df58aaf5c4c2d361e4e SHA-1: 9dcf37067e1a67dba4334854f5fcab41bffb8a0b SHA-256: ace6fb888cf8eac261c70cf2cfa1c2093da7ab1d1e60f092ad4ba442851304df
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, a technique often used to redirect users to malicious sites. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically identified a link to a known malicious redirector, ttraff.cc. The PDF_SEO_LINK_FARM heuristic indicates a large number of external PDF links, suggesting a link farm designed to attract traffic. The ML_NYX_PDF_MALICIOUS classifier strongly supports the malicious nature of this document.

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=benefits+of+bitter+leaf+pdf In PDF document text
    • http://files.odinbrotherhood.com/uploads/1/3/1/4/131438604/semuxuwetufawud.pdfIn PDF document text
    • http://jozitopeg.i2cafe.com/uploads/1/3/1/6/131606346/numavikexikob-dipizukum.pdfIn PDF document text
    • http://jemoz.totallytaggart.com/uploads/1/3/1/4/131453990/5335777.pdfIn PDF document text
    • http://files.jeanbarrettpetphotography.com/uploads/1/3/1/3/131381681/nanep_sevixuxazem_degaluxulizot.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/1/0437/1972/1115/files/vazajumoxovokaderilol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8974/0441/files/sepokiwaxuvumomudeva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6784/2465/files/nudaluzob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0087/3631/files/sawerabufise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4349/5841/files/tapirazutogodeka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5823/3493/files/al_quran_transliteration.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2669/4822/files/46991806748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6775/3116/files/biles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/3415/7991/files/webatawo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/8003629611.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5804/4827/files/fuwuwiwovejebi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2476/0488/files/91778323987.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9925/1093/files/88309931402.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000628d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x628D 5224 bytes
SHA-256: 4bff077f56a5b11847ba31ddcd4f8a7e668b3b17384e4a24f674d8fb5b2e8235
font_01_sfnt_off0000745c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x745C 10080 bytes
SHA-256: 7c172768fa2da5ffaf837b5a4e6a4033433b099f5530fc645af9d1071f3291ac

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