Malicious PDF — malware analysis report

Static analysis result for SHA-256 17a2bb4b2298936c…

MALICIOUS

PDF

69.7 KB Created: 2021-02-26 03:26:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 602a3063f98415e6b9b7602ad2c8fbb7 SHA-1: 6f82d01443fa83a724279f69a9f317d628551c24 SHA-256: 17a2bb4b2298936cebeab82a8d8c81e16b6fab52c28f0e2d7264df20f3a18591
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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.
  • 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.
  • 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=wii+lens+cleaning+kit+alternative In PDF document text
    • https://static.s123-cdn-static.com/uploads/4415326/normal_5fe172166b0a4.pdfIn PDF document text
    • http://pawusofadezozep.22web.org/oru_kuttanadan_blog_collection_report.pdfIn PDF document text
    • https://talidifixuj.weebly.com/uploads/1/3/5/3/135390844/bonasofo-dedulalinivumup-juviwaziv-widolisugo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448343/normal_6022b4e39ae1b.pdfIn PDF document text
    • http://lobabinuladeri.medianewsonline.com/6946848092.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414153/normal_5fcf313e5374a.pdfIn PDF document text
    • http://zonizubiro.getenjoyment.net/foxagafabinedofiv.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480402/normal_60112ec1c3b0f.pdfIn PDF document text
    • http://finipupote.mywebcommunity.org/53284582158.pdfIn PDF document text
    • https://danolanefute.weebly.com/uploads/1/3/4/8/134873411/ba5a3eb15d.pdfIn PDF document text
    • http://bibuzikufaje.mygamesonline.org/intel_display_audio_driver_windows_7_64_bit_dell.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4423431/normal_60222aeef33e7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4428335/normal_5fe760532ab6c.pdfIn PDF document text
    • https://vakilelem.weebly.com/uploads/1/3/1/3/131379598/4bc31c.pdfIn PDF document text
    • http://xunajoza.22web.org/tadesufefepapi.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451754/normal_5ff9c0ec32fa5.pdfIn PDF document text
    • https://wiwufupa.weebly.com/uploads/1/3/2/8/132814928/6050530.pdfIn PDF document text
    • http://mitutepoka.medianewsonline.com/rem_1187_review.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://luvabokinoleg.onlinewebshop.net/35236839307.pdfIn PDF document text
    • http://xufenazaliwe.epizy.com/kojobixijatizolebu.pdfIn PDF document text
    • http://zexubadisaki.rf.gd/68738961937.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_off0000d3fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3FA 5104 bytes
SHA-256: d07e6c8a04e32c6f2fd193debdf2d4006b08a44e61142c3fa5014ae06fc8ca90
font_01_sfnt_off0000e581.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE581 10428 bytes
SHA-256: faf1f92e7ac19751a62befa64f5e59a554f8a34ad32d727716fd31971ec89d3b

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