Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5a7e6a0e19250ca…

MALICIOUS

PDF

71.6 KB Created: 2021-02-14 04:59:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 59f214e7cc3c9d9d165b8cdb82f7462d SHA-1: b68c20a4e6c4d8cae3e6b35bf9cb755607735ee2 SHA-256: a5a7e6a0e19250ca35eee08a3d4d5661922c4efa5f07356a7ba72ad3b1aa13d3
136 Risk Score

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://druttle.ru/wix?keyword=cub+cadet+ltx+1046+kw+service+manual PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4366987/normal_5ff7d40769552.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489237/normal_5fd12d848f0de.pdfIn PDF document text
    • http://milansit.space/hack_pvz_2_androidnsjmd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4373788/normal_5ffae8ace5dbc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366357/normal_60269b977a067.pdfIn PDF document text
    • http://arthromedro.xyz/basic_algebra_worksheets_and_answersz4y0x.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427499/normal_5fdf38e47de5e.pdfIn PDF document text
    • https://zagefejov.weebly.com/uploads/1/3/2/7/132710748/898cf8b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/risalenefazozo/attributes_of_transformational_leadership_style.pdfIn PDF document text
    • https://s3.amazonaws.com/wifiduxezo/cheesecake_factory_nutrition_information.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwisigetizoxif/gatifeniwezomaxogi.pdfIn PDF document text
    • https://s3.amazonaws.com/visagogijulep/47571309666.pdfIn PDF document text
    • https://s3.amazonaws.com/sefabe/vexitodazoxokotokolapip.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000db02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB02 5848 bytes
SHA-256: 28d6baf26f348228922ce285a45bbc1aa0a6411923975a597e30856958320a1e
font_01_sfnt_off0000eef1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEF1 10072 bytes
SHA-256: 5ce6974a37ada99f93a7afc0ad638582035d4f92efb8b6c8a60a302f6ba288b7