Malicious PDF — malware analysis report

Static analysis result for SHA-256 63f34cc522ded9f2…

MALICIOUS

PDF

71.8 KB Created: 2021-02-20 18:51:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: c801bc557ea5077709716bdc0faf69c7 SHA-1: 969bb694baf2dbe604f3074bcfa36ad0cf982398 SHA-256: 63f34cc522ded9f28cc122e96a27ceb438cf54aebe13f9aa66633758689ff369
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://leonvi.ru/123?utm_term=d+and+d+2nd+edition+player%2527s+handbook+pdf PDF link annotation
    • http://jelolizabuvixi.22web.org/numbers_in_spanish_1-_1000.pdfIn PDF document text
    • http://rajedat.iblogger.org/peseri.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475582/normal_5fce3445bcbaa.pdfIn PDF document text
    • http://vafakewa.iblogger.org/34426505181.pdfIn PDF document text
    • http://riwuveroxuwox.66ghz.com/rupinder_gandhi_3_film.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/wozowuledij/58815145721.pdfIn PDF document text
    • https://s3.amazonaws.com/fatisake/gijunakut.pdfIn PDF document text
    • https://s3.amazonaws.com/gajabedafot/html_form_action_attribute_empty.pdfIn PDF document text
    • https://s3.amazonaws.com/zidenigad/top_paid_apps_android_2018.pdfIn PDF document text
    • http://sedobuxekazadi.rf.gd/can_you_use_a_normal_sd_card_in_a_ps_vita.pdfIn PDF document text
    • http://fevunurinowigi.epizy.com/how_many_calories_in_2_cups_red_leaf_lettuce.pdfIn PDF document text
    • https://s3.amazonaws.com/batiku/anorexia_nervosa_causes.pdfIn PDF document text
    • https://s3.amazonaws.com/tozaduliwubega/naxunesuzetogow.pdfIn PDF document text
    • https://s3.amazonaws.com/robumuduluwise/email_wireframe_template_psd_free.pdfIn PDF document text
    • http://damewanobojojo.rf.gd/the_weeknd_spread_out_on_the_sheets.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_off0000da01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA01 5600 bytes
SHA-256: df431fa45f279981568d4d79c779136f0c729236f328366042cd71c2dd0087cb
font_01_sfnt_off0000ed17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED17 10900 bytes
SHA-256: 8e5c8d24df7f34ee47e63e09fce5638ba1f5b94169afd8ee5f5f22ab300188bf