Malicious PDF — malware analysis report

Static analysis result for SHA-256 6197d67a527e2c06…

MALICIOUS

PDF

60.9 KB Created: 2020-11-06 22:44:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-11
MD5: b51d58afa10c2654c0e319c538849e3b SHA-1: 3cfeda8f42f18358e364251f6b20fb96be37019b SHA-256: 6197d67a527e2c06b972504245cc79e0e2f8dbde1e8c2efc40f6732eeb8ec148
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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://traffset.ru/aws?keyword=loramore+casino+bonus+codes+2019 PDF link annotation
    • https://pifejidulilev.weebly.com/uploads/1/3/4/4/134480865/danilarumake.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412154/normal_5fa1c457af181.pdfIn PDF document text
    • https://kofukupapakube.weebly.com/uploads/1/3/4/5/134586312/vumavu_tixenekuz_rugilu_munuwazifari.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://zojemadej.files.wordpress.com/2020/11/73587489466.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/272f7ab1-6388-492d-ada7-8bdae5e09dfb/forgiven_solo_tu_eres_dios_letra.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f34db062-70dc-42b8-8c2a-4de197623c56/56317021052.pdfIn PDF document text
    • https://s3.amazonaws.com/kosipefojaw/critical_value_calculator.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e12124be-5df5-4f75-bed5-32453f0a4965/94888866723.pdfIn PDF document text
    • https://s3.amazonaws.com/rijaliwiguvex/osprey_hub_stockton.pdfIn PDF document text
    • https://s3.amazonaws.com/vuliwisuwig/datuxemuketewuladowejep.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000971c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x971C 5616 bytes
SHA-256: c10e530471b42aa8735d629f5072ea1f567fd88ab309e28f0ba04f4926339ba7
font_01_sfnt_off0000aa15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA15 11320 bytes
SHA-256: 764aae238cad13e93db5736de0cf4c0f59e99051d76977a735c42b954d343027
font_02_sfnt_off0000d0d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0D7 16272 bytes
SHA-256: 86fb2657700afc5d919b095ca6b998d3f23986197df0d95a25bd8e298c7a0eec