Malicious PDF — malware analysis report

Static analysis result for SHA-256 9fd55663045433f8…

MALICIOUS

PDF

70.3 KB Created: 2021-03-05 13:00:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: fceebe6dd272f268afa52fd803988b60 SHA-1: 30ff4dc7b4a9872a3d1a95f985a0dc105bdc3db0 SHA-256: 9fd55663045433f8c8de6852fdee8bc4099001d2b34f111e0ef406d9cfff1521
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • 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.
  • 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://druttle.ru/wix?keyword=universal+gravitation+phet+lab+answer+key PDF link annotation
    • https://tisitijalazog.weebly.com/uploads/1/3/6/0/136017937/9622426.pdfIn PDF document text
    • https://tujozidu.weebly.com/uploads/1/3/4/6/134694944/9097719.pdfIn PDF document text
    • https://poxatekegevu.weebly.com/uploads/1/3/4/7/134753674/fazofipoduw-pajam-nudemabodavuli.pdfIn PDF document text
    • https://nivosuvadifo.weebly.com/uploads/1/3/5/3/135384950/makorolitemoba.pdfIn PDF document text
    • https://sajolunuweto.weebly.com/uploads/1/3/1/4/131407571/xuzisakofuli_wukopegeg_rukariz_zuzexa.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/9be51a69-4d11-436e-bbbe-26c7aefbcb5b/stihl_br-800_c-e_magnum_backpack_blower_reviews.pdfIn PDF document text
    • https://s3.amazonaws.com/kiguteperilodu/kugawizevazuwizopiba.pdfIn PDF document text
    • https://737bf953-b780-43bc-8af0-312ed5328a40.filesusr.com/ugd/017c44_01f1325cde85432baccddcfb418318a4.pdf?index=trueIn PDF document text
    • http://mupevisad.epizy.com/netgear_n600_wndr3700v2_firmware_update.pdfIn PDF document text
    • https://s3.amazonaws.com/nakuzafol/family_timeline_template.pdfIn PDF document text
    • https://s3.amazonaws.com/luworizesupox/binary_to_decimal_conversion_method.pdfIn PDF document text
    • https://855e1e5b-0daf-4dce-aa73-dfad2bfec5df.filesusr.com/ugd/ced2dc_39a77858d8824c629f4d7f49b396cc70.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jezobasit/rupiripokosagixemobarupu.pdfIn PDF document text
    • http://vorawaforase.epizy.com/13912864928.pdfIn PDF document text
    • https://011f98f8-b45f-4578-a2fd-466b530f7845.filesusr.com/ugd/74e905_b7183093a8e04e7db91128284e604e93.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9c0afc1-186d-49d8-9f9f-7cda6cfddfc6/zatabanogi.pdfIn PDF document text
    • https://s3.amazonaws.com/lixuzo/stihl_chainsaw_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/fivebo/85993309140.pdfIn PDF document text
    • https://s3.amazonaws.com/bewibiwat/dutinowepawanepojuxusasif.pdfIn PDF document text
    • https://s3.amazonaws.com/potamotaz/49920359659.pdfIn PDF document text
    • http://xuwuxubemepimox.rf.gd/welabaso.pdfIn PDF document text
    • https://s3.amazonaws.com/luropi/55661810401.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_off0000d4cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4CD 5532 bytes
SHA-256: 3817c83b798ff6dd2a89199fda0e74bec072238e2c8e5bc904cecad74549fab0
font_01_sfnt_off0000e7b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7B0 10504 bytes
SHA-256: 55867d095d4f208012917414ad8dd4743d20804b652228a578009a862cd0c3f7

Open this report in the interactive analyzer, or submit your own file for analysis.