Malicious PDF — malware analysis report

Static analysis result for SHA-256 a387a707498e98de…

MALICIOUS

PDF

199.6 KB Created: 2020-08-10 05:14:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 45109bc9f3a488b61c35468681f429e5 SHA-1: d411efc32fa591c50a0c94b8f7a5310ac77a9606 SHA-256: a387a707498e98de026242fe31a1bfc25998733fe920c3863cd5b8223ba6f409
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing indicating a link to known malicious redirector infrastructure. The embedded URL points to 'ttraff.cc', which is associated with malicious redirection. The document body, though heavily obfuscated, contains the same URL, reinforcing the malicious intent. The file is a PDF, and the presence of embedded URLs suggests a social engineering attempt to trick the user into navigating to a harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • 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.
  • 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=review+of+clinical+anesthesia+pdf+download In PDF document text
    • http://devit.milesindustriesnz.com/uploads/1/3/1/4/131453574/fujatedo_setikudenikem.pdfIn PDF document text
    • http://jidotekiw.brandynacole.com/uploads/1/3/0/7/130738732/rewixusudunazi-nisiti-fumebugu.pdfIn PDF document text
    • http://files.ashleynewmanfitness.com/uploads/1/3/2/3/132303151/efc83b15bc.pdfIn PDF document text
    • http://mudom.marccarmen.com/uploads/1/3/0/7/130740141/2896996.pdfIn PDF document text
    • http://files.ellisonjazzmuseum.org/uploads/1/3/0/8/130874599/b53521816.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1802/5122/files/military_alphanumeric_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5265/5002/files/6948485958.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3390/2760/files/38415684297.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0595/9588/files/loweporeniwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2161/5775/files/lanajoguxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4986/8712/files/dire_maul_west_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7513/3859/files/21008019585.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5905/9615/files/56953727718.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1351/2100/files/vadiwapimobanet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0187/1512/files/veriwixekobemekote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9282/8579/files/repalegun.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002cb41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB41 5096 bytes
SHA-256: 6ed44d14457d509a32d49909363dbb785d2d5bddb8b40bfa7e1d74a0d5da1b1a
font_01_sfnt_off0002dca9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DCA9 11128 bytes
SHA-256: 2ecaa97828637ce1f00aeff56ec5d69a7458503028aab6021327da155276f5f7
font_02_sfnt_off000301fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x301FE 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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