Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2c38df582438aaf…

MALICIOUS

PDF

41.5 KB Created: 2020-11-06 00:43:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-15
MD5: 6232dd0a940015b9c15d09c739a758a5 SHA-1: 325178fabdec1b5c6dfa3129ec08adf4aa3710ef SHA-256: d2c38df582438aaf9d84e33117c3e78343d74b14d199ef7297541a70f4f1dc2e
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/123?keyword=matthew+ward+the+stranger+pdf+free PDF link annotation
    • https://rozazokosu.weebly.com/uploads/1/3/0/8/130813972/165573.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369783/normal_5f9b6aee85922.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391634/normal_5fa07a9cb0222.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385415/normal_5f8d6baad3d8f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374188/normal_5f94ef044a8a9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369936/normal_5f92e3adb7b6e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368504/normal_5f8ba70e46cf3.pdfIn PDF document text
    • https://sowofinonapira.weebly.com/uploads/1/3/4/3/134361296/7bb42af0a9dbf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381766/normal_5f97e9e124000.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/6992d744-0016-4737-9b46-1ce49b633019/mti_player_download.pdfIn PDF document text
    • https://s3.amazonaws.com/vukumesoj/27302545445.pdfIn PDF document text
    • https://s3.amazonaws.com/lewuli/sim_freeplay_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a0effa36-5bc0-4e27-9b3f-26d186a3fe37/83221200126.pdfIn PDF document text
    • https://s3.amazonaws.com/waxapoz/liwuwopuzipiwili.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_off00006146.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6146 5368 bytes
SHA-256: 276f378df23a8bffb8ad61c24e5775967624d73618457b83abbb06f94baa5f84
font_01_sfnt_off000073a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73A3 11156 bytes
SHA-256: c400f0e11240db0351efcdc4bbb3f146ee6c33dd3f9dc22a72ed546bdcabacc8