Malicious PDF — malware analysis report

Static analysis result for SHA-256 62eb685cd69353b8…

MALICIOUS

PDF

75.4 KB Created: 2020-12-24 13:32:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 19337970ee96caed60dcf807875377c5 SHA-1: 916803bab1798fcee7f13d73f294c582b2ae2b64 SHA-256: 62eb685cd69353b86c48163a5d199602fc8f8793613c174c96e72b7122cf858a
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, with heuristics indicating it contains an external URI and an SEO redirector link. The document body, though partially corrupted, contains text related to 'Barstool bets android app', likely serving as a lure for a phishing or scam campaign. The embedded URL points to a redirector, which is a common technique for delivering malicious payloads or leading users to fraudulent sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/aws?utm_term=barstool+bets+android+app PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4369161/normal_5fdeb8acdaafb.pdfIn PDF document text
    • https://cdn.sqhk.co/liwewajawab/2giFXIK/mijefokixafevagofos.pdfIn PDF document text
    • https://cdn.sqhk.co/sejujona/hgjgfjc/pexuduzogozigi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369765/normal_5f8ded8bc81a4.pdfIn PDF document text
    • https://cdn.sqhk.co/muzexeragod/icjeuAb/2460656569.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/b908a314-4081-4b59-a5d6-5b6a0c4f29d3/71060519806.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5d96319d-6d28-4802-9f76-16b26441a6a5/74667870694.pdfIn PDF document text
    • https://s3.amazonaws.com/lixasifasi/materialismo_racional_bachelard.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/410bd13b-f0f4-404e-b63e-6cea601880c5/legion_of_angels_images.pdfIn PDF document text
    • https://s3.amazonaws.com/lukepepe/48601969789.pdfIn PDF document text
    • https://s3.amazonaws.com/warapagefasovi/55478549128.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2fd72c9d-9a99-461e-8449-b7e931b218c9/7400361688.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 4

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_off0000dd3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD3F 5140 bytes
SHA-256: 29c4410861c4e8ad8d0e68c85b645c09b306b0b78da0576e6645c6781b18fc79
font_01_sfnt_off0000eeb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEB5 4216 bytes
SHA-256: 90f612232781e044d40614c8dd7b9e13a6d0b9e27332957a90dcc15f0df3658a
font_02_sfnt_off0000f9ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9EF 11312 bytes
SHA-256: d1a93e9bf0c32384f003a354b8062170a2035bb164d91a5debcd1618d2173cc4

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