Malicious PDF — malware analysis report

Static analysis result for SHA-256 a5aedb47f2ada758…

MALICIOUS

PDF

69.3 KB Created: 2021-02-22 02:06:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 692a4944109d6854933d5ab05fcc6c63 SHA-1: 6bc5493d9bed0397a61be22b575c998715e1bb46 SHA-256: a5aedb47f2ada758312bcf3e34bad4d2b1ed819c12666339b761e0ad64ea0fd9
214 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wix?keyword=tlf+fggl024+uv+bulb In PDF document text
    • https://cdn-cms.f-static.net/uploads/4403410/normal_6019a2791041e.pdfIn PDF document text
    • http://pinegrvuig.fun/ripejugosumawerarofibeb6q8sy.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449424/normal_5ffd7daa2e106.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443292/normal_5fccd144dadba.pdfIn PDF document text
    • https://cdn.sqhk.co/xujifomevesa/dq3iaC7/jexopegorizolatile.pdfIn PDF document text
    • http://devgame.design/gfp_chromophore_formationyg6zb.pdfIn PDF document text
    • http://1xbet-sportstavki.fun/14330427457hcks2.pdfIn PDF document text
    • https://cdn.sqhk.co/wifukatar/bjhIfPA/bird_paradise_hours.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4401985/normal_60055e3e569f3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391893/normal_602786dc473a7.pdfIn PDF document text
    • http://yeswins.space/97910057952xbdym.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369930/normal_5ff31f1291267.pdfIn PDF document text
    • https://cdn.sqhk.co/salasereki/Sjiifn4/30728570066.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484999/normal_5ffed318a9ff1.pdfIn PDF document text
    • https://cdn.sqhk.co/miloxuso/vhigcig/mage_hero_mod_apk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://rifavewo.epizy.com/can_you_hack_comcast_cable_box.pdfIn PDF document text
    • http://getorisatenazu.rf.gd/83481174340.pdfIn PDF document text
    • http://reduxaxu.epizy.com/25919370089.pdfIn PDF document text
    • https://s3.amazonaws.com/woneketelak/klasifikasi_rhizopus_oryzae.pdfIn PDF document text
    • https://s3.amazonaws.com/vifusupegiza/butagabojevule.pdfIn PDF document text
    • http://sibubixusa.epizy.com/efftronics_written_test_papers_with_solutions.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_off0000d09f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD09F 4964 bytes
SHA-256: c0124bd710fd222fab35d38c59e7a8457ef36bc4cb21a14f0fe98cfbf01e1fd8
font_01_sfnt_off0000e1b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1B7 11232 bytes
SHA-256: a64e2eefb24f616427b02ed1723775d832dfd60854821c21c3e09f13ef9e2a6f