Malicious PDF — malware analysis report

Static analysis result for SHA-256 472d7689ea73a10d…

MALICIOUS

PDF

69.4 KB Created: 2021-03-01 07:40:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: d52581097c31ccf0bb318498283726c8 SHA-1: c4b54a3dfc12bfcae9443a9aecf07281e65a5c1a SHA-256: 472d7689ea73a10dce536dbb95a9029ae2fc503c6ec5b8d6aa59ec5114b727c3
204 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/award?keyword=polaris+3900+filter+bag In PDF document text
    • http://mujabelor.mywebcommunity.org/roxewisoxidoxuxirozilibo.pdfIn PDF document text
    • http://bitividap.22web.org/wovonufuketuvigedezojol.pdfIn PDF document text
    • http://temilops.xyz/angular_tutorial_point7tw65.pdfIn PDF document text
    • http://lunatan.medianewsonline.com/functional_analysis_psychology_example.pdfIn PDF document text
    • http://ketosimple.online/navy_blue_balloon_garland19e8b.pdfIn PDF document text
    • http://nurokojo.mypressonline.com/1_to_1000_number_chart.pdfIn PDF document text
    • http://befotuke.mywebcommunity.org/nowadizifafiritife.pdfIn PDF document text
    • http://rawoxaxevog.mygamesonline.org/kokosax.pdfIn PDF document text
    • http://blockingscenery.com/mp3xd_descargar_musica_gratis_para_celular_androidisymx.pdfIn PDF document text
    • http://migerov.xyz/4012662855j8438.pdfIn PDF document text
    • http://probnik1313.tech/25258581563jda73.pdfIn PDF document text
    • http://jabilevij.mypressonline.com/finch_and_cotter_custom_constellation_map_poster.pdfIn PDF document text
    • https://javesuput.weebly.com/uploads/1/3/0/8/130873829/kajinokewipij_bujupaja_bemuroxox.pdfIn PDF document text
    • https://pokotozumunas.weebly.com/uploads/1/3/1/4/131453498/bisavosadub.pdfIn PDF document text
    • http://gopadaxin.mywebcommunity.org/one_for_the_money_book_club_questions.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kasisexa.rf.gd/69232757371.pdfIn PDF document text
    • http://tewidunutazi.rf.gd/vikiro.pdfIn PDF document text
    • http://bibobega.epizy.com/kikiviromabaxikasozerexa.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_off0000d34f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD34F 5540 bytes
SHA-256: 2bc4a6bc7a84401b84a156d5676b58832a62f6c6379caa310c47f5a85ea7ac22
font_01_sfnt_off0000e626.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE626 10028 bytes
SHA-256: 736d0b58a0320373f05de4bf51aef744d684a5047fb66216c22ffa9eeab62a27