Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7675ab87c5b28de…

MALICIOUS

PDF

69.4 KB Created: 2021-02-23 03:47:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: c4af69d0b86fbd2ad00cae331617a2da SHA-1: a55281ac67a9b6dcaaa87ffc614c9088ec24501d SHA-256: d7675ab87c5b28de1f16a1ad661cb6254d85ffa2121f15df9a58e74558b9c2ac
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://baarspo.ru/wix?keyword=super+mario+sunshine+cheat+codes+dolphin PDF link annotation
    • http://italiahot.fun/gorogibawafafgtpn.pdfIn PDF document text
    • https://cdn.sqhk.co/pibusupi/jfxhhhg/93022457467.pdfIn PDF document text
    • http://samelike.site/kenmore_gas_range_burner_grate_replacement0zvfg.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387920/normal_5fdc03d0b2c62.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482426/normal_5ffa74d1595dd.pdfIn PDF document text
    • http://idealicaitalia-official.site/pugipitunetazevizojovlccan.pdfIn PDF document text
    • https://cdn.sqhk.co/rufosopufu/I9dhfgd/alien_shooter_gift_codes_ios.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484812/normal_5fc80b592e274.pdfIn PDF document text
    • http://ctyr.ru/varodijakifed9vm5u.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450148/normal_5fd089a55d7f7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475382/normal_5fe9abf348069.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d3d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3D2 5416 bytes
SHA-256: 0c5d53691be242cb610a6aa2508485d22e9a69d866d57cf326d99d5a16ae6fc7
font_01_sfnt_off0000e60b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE60B 10296 bytes
SHA-256: 439680fdd51ad558cbdc92e47126e0147171a445bb14072523b4e11da7aa232a