Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1df2be398f3b52f…

MALICIOUS

PDF

43.7 KB Created: 2020-08-22 06:12:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 09709e179c0f8a01601d500f7362b8ac SHA-1: 1f4fd86a786b756f893a35fdf1c886d136c4f5f1 SHA-256: e1df2be398f3b52f267fcbf0ae723117bbc5089d08798c78837d644b9ac22deb
194 Risk Score

Malware Insights

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

The PDF document exhibits characteristics of a link farm, containing numerous embedded URLs. One critical heuristic identified a link to known malicious redirector infrastructure (ttraff.com). The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the same redirector URL, suggesting the primary intent is to lure the user to a malicious site.

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=list+of+travel+agents+in+delhi+pdf In PDF document text
    • http://files.athenasbyjoellen.com/uploads/1/3/1/3/131383426/gopewefunodofe.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/1/0432/8649/5397/files/lavaribuliwebor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9160/7190/files/konimemuxadejevenari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1236/6231/files/benim_hocam_fizik_ders_notlar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5804/4827/files/pitasodupamimuvilod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9431/7981/files/businessman_telugu_movie_songs_video_songs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6356/5727/files/4674654924.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2703/8369/files/63403576671.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0512/4516/files/65743011358.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8529/1937/files/union_budget_2020_download_upsc.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 3

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_off000066a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66A4 5304 bytes
SHA-256: ac55f2aa3553a64b26eda44bb19bbd4afd33910bc12d9e81ecca34916b25fd3a
font_01_sfnt_off000078ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78AD 13264 bytes
SHA-256: 92176da81ea7d37b770e28c53eeea63bbf8d5b061237a138f3eb066ff99b0613

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