Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ede2824133e4125…

MALICIOUS

PDF

45.2 KB Created: 2020-08-11 01:23:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 099f3b31d7333317612d35ce23e5a15c SHA-1: 391c4fd88e3e5b97fec3efe7a9546706f418e9cd SHA-256: 9ede2824133e4125c9c71395c935f6793e925e5749f2aafc3314a449e97f9f0d
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is likely intended to lead the user to a malicious site. The ML classifier also strongly flagged this PDF as malicious. The document body contains garbled text but includes the URL that triggered the malicious redirector heuristic.

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=barrancos+mooney+4ta+edicion+pdf+gratis In PDF document text
    • http://sedijog.scorpiontv.us/uploads/1/3/0/7/130775422/bababinuzi.pdfIn PDF document text
    • http://files.elcinepr.com/uploads/1/3/1/6/131637016/971614.pdfIn PDF document text
    • http://files.foxhomeinspectionllc.net/uploads/1/3/1/6/131607712/13c53.pdfIn PDF document text
    • http://files.communication-works.ca/uploads/1/3/1/1/131164442/9005571.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/1/0432/0549/2904/files/wowired.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8139/1514/files/73536264367.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4556/0220/files/radirobilepejeda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8863/2213/files/quantitative_aptitude_short_tricks_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7526/4919/files/niweforobop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9869/4049/files/shiva_manasala_sakthi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7511/6960/files/xujiwerofowuse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1312/8863/files/zadepetabopuxiwimuzinota.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1520/9123/files/delta_bench_band_saw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9336/0801/files/arabic_to_english_word_meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1515/9458/files/m_p_shield_manual.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_off00006e8b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E8B 5680 bytes
SHA-256: 356bf7263f854f1adb253a5eed96357af1d6f350e28fd539dd62953c51507877
font_01_sfnt_off000081d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81D7 11580 bytes
SHA-256: 2d006cafd56125a65738a4baa3dc252f29478cf461ef7fd667de10bddde8f0b7

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