Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0e0f834f5c43814…

MALICIOUS

PDF

71.4 KB Created: 2021-02-07 10:54:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: b0d5c451a69d24d1e3a5d1ee54d0960d SHA-1: 6cbee462b69e5e438ac0ad86e24a3522671613a3 SHA-256: e0e0f834f5c43814f2830ee2057353302fed8ed2845a82532724c61404dedbf8
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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/wb?keyword=manual%20canon%20eos%20rebel%20sl2 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4460241/normal_5feb1ab293d2f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4391898/normal_60063fc0324b5.pdfIn PDF document text
    • https://xadaxiwunitari.weebly.com/uploads/1/3/0/8/130814235/9928544.pdfIn PDF document text
    • https://cdn.sqhk.co/davusegeb/OCiguKT/street_racing_syndicate_car_list.pdfIn PDF document text
    • https://cdn.sqhk.co/rotelizedo/7iegc06/burger_king_deals_3_for_3.pdfIn PDF document text
    • https://cdn.sqhk.co/kewukapugino/jajj0ua/92314918057.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474176/normal_600d0411e72bd.pdfIn PDF document text
    • https://cdn.sqhk.co/pubamegumox/ibifhjB/sutefimaxojusupogenobewez.pdfIn PDF document text
    • https://cdn.sqhk.co/xozawimepod/Cjcmgj4/puzzle_bobble_switch_2_player.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464532/normal_5fe6bf7d2eb5d.pdfIn PDF document text
    • http://natorg.fun/adderall_vs_adderall_xr_dosage_equivalents2s9ai.pdfIn PDF document text
    • https://molisepav.weebly.com/uploads/1/3/5/3/135347716/b06f1d5a83.pdfIn PDF document text
    • https://cdn.sqhk.co/siwemawatu/hgxgidi/95533640969.pdfIn PDF document text
    • http://triple-doska3.club/lock_screen_dont_touch_my_phone_stitch_wallpapernbgmg.pdfIn PDF document text
    • https://cdn.sqhk.co/duxapotor/YAm8Ecc/simple_bucket_list_ideas_for_couples.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_off0000dcdd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCDD 5068 bytes
SHA-256: 9b0a591786ba80d1bea39d81a6430bc388998a2a92ff250923e25e7ad5f246e4
font_01_sfnt_off0000ee31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE31 10272 bytes
SHA-256: 64fbf28785be11c3a211b149825ebe457e0db85f24dfd1ccc26ee4dd7a50cf1b

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