Malicious PDF — malware analysis report

Static analysis result for SHA-256 6147aebd6ca4959b…

MALICIOUS

PDF

44.7 KB Created: 2020-08-12 02:48:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ec5077d67aa33a88956957a6dcd7cf33 SHA-1: 181362ecd7c8149c48175ee9c7b8176756fbefd1 SHA-256: 6147aebd6ca4959b54f36d8d7741fd9576535270e529579055182a64766ed008
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains a link farm designed to appear as legitimate downloads, but ultimately redirects to malicious infrastructure at 'ttraff.cc'. This is a common tactic for phishing or malware distribution, masquerading as a free resource. The ML classifier strongly supports the malicious nature of this 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=oxidative+phosphorylation+pogil+pdf+answer+key In PDF document text
    • http://files.handfelted.com/uploads/1/3/2/3/132302894/kinipekelukipo-zerunixamorukat.pdfIn PDF document text
    • http://files.tulelakecycles.com/uploads/1/3/0/7/130775242/2374964.pdfIn PDF document text
    • http://files.tandesoleilmorrobay.com/uploads/1/3/0/8/130814118/07e57.pdfIn PDF document text
    • http://files.bhlexvolunteers.com/uploads/1/3/0/8/130874539/7bd20.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/1/0439/8009/5646/files/55874816374.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3094/4671/files/36425107924.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5496/4631/files/vidibozavukonefusabarefun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5276/8151/files/desedokokofowovubumal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7755/8681/files/42319013994.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0741/0329/files/90897636251.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3287/1074/files/discipleship_bible_study_lessons.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1007/2481/files/crit_fail_table.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9174/5175/files/math_minutes_5th_grade_worksheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8212/0358/files/35319755851.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_off00006e7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E7C 5716 bytes
SHA-256: bc67a7e79a6ad83cd67e84a50963eca099ed16cb815dcb77f04f69df86ebfc5a
font_01_sfnt_off00008217.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8217 10672 bytes
SHA-256: 19963149331d692748826508b14ab20b4ef7b5f4c663f31b24f4dbb3b59cc706

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