Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf7cb45e8709d3aa…

MALICIOUS

PDF

73.2 KB Created: 2021-02-28 18:10:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: baea2889301ad0cf9a7deb02c8a89df3 SHA-1: e1db06eaf4e9a1813b4a896e637d6672da1f5b78 SHA-256: bf7cb45e8709d3aa91e1f3c87e4d5ad8d82e62a575bf3af16bc66253e0b9de6d
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://xezojetit.ru/award?keyword=rinnai+tankless+water+heater+rl75i+manual PDF link annotation
    • http://girameluxo.iblogger.org/blackberry_link._exe_free.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4428331/normal_5ff48a98e51b6.pdfIn PDF document text
    • http://fufibubesex.iblogger.org/toner_do_hp_laserjet_1320n.pdfIn PDF document text
    • https://cdn.sqhk.co/ponesigis/IGjajau/taguvunilelilekizufavuza.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458854/normal_5fe4a5be1d993.pdfIn PDF document text
    • https://cdn.sqhk.co/bulelovuroga/9qb8idL/current_space_missions_to_mars.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380214/normal_5fe271963b237.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475215/normal_6023ec453bfc5.pdfIn PDF document text
    • http://memimusisat.getenjoyment.net/does_lawn_boy_still_make_2_cycle_mowers.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374021/normal_5fe43f2609f6b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393180/normal_5fc6b34a9189a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407994/normal_602023e90e473.pdfIn PDF document text
    • https://cdn.sqhk.co/pifajaloro/OuLjggh/good_pizza_slice_midtown.pdfIn PDF document text
    • http://gowanenutik.mypressonline.com/40938818194.pdfIn PDF document text
    • https://cdn.sqhk.co/gazamara/jdUXSib/92887537185.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477400/normal_5fe13b08a198b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372982/normal_5ffd7c4649f17.pdfIn PDF document text
    • https://cdn.sqhk.co/merabuvi/gigh4G5/jifikitubaxo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jabodegodonirad.atwebpages.com/buborekugukez.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_off0000e12f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE12F 5292 bytes
SHA-256: 18dbddad3d05bb266c2d01fc97e74b29334d27e6a373aa205e9ffbc59579132d
font_01_sfnt_off0000f32b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF32B 10596 bytes
SHA-256: 0264855c8b62c373db0e7f24b5e1dc8d16e595af3f10bc710b4e640e5a2ad7f9