Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9699b5a5c9a62dc…

MALICIOUS

PDF

68.4 KB Created: 2020-12-31 16:39:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 873d79316767db8e0c19d2f5a3c31fa1 SHA-1: 2aa9749eae60838153208e0868d1e1394971db74 SHA-256: f9699b5a5c9a62dc50365b3b6d828872062dc57fda3f8cb490721cd410db5165
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains a lure related to downloading a book, which redirects to the suspicious URL https://traffnew.ru/123?utm_term=light+by+michael+grant+book+download+free. This suggests a phishing or malware distribution attempt via a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffnew.ru/123?utm_term=light+by+michael+grant+book+download+free PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/mekonulegipero/gemazuperojutibabekozer.pdfIn PDF document text
    • https://s3.amazonaws.com/dugibabafod/adobe_photoshop_cs5_crack_file_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ac8cb2eb-013c-41f2-9d78-c10abfc548ff/smartthings_ide_new_app.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/507658bc-21de-4e20-9524-b47f836f0a69/lucio_wall_ride.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f38a939-440d-4c93-9962-ee3f2e6b9bc8/26319080968.pdfIn PDF document text
    • https://s3.amazonaws.com/bisute/10838992765.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/32688749213.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e832ddb7-be6b-42e9-9284-7a3c50f95a32/63419712983.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/53b6894c-58d3-4e0e-b4a1-86a0821ddec7/burda_style_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8316652e-0d7e-4763-a1e1-7be9c25a9f85/bafufomiwagojuvaxoberop.pdfIn PDF document text
    • https://s3.amazonaws.com/bikikanafopavu/1209012539.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 1

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_off0000cea7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEA7 5596 bytes
SHA-256: 36ecc967f0879ae07b5bdbb732db19f71a82afbb5d094ff254072a5e9f1af283
font_01_sfnt_off0000e1a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1A6 10732 bytes
SHA-256: b73666527a7bf7f192be08586b30d9b0dab95ef8e363aa5628497de04ace45b4

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