Malicious PDF — malware analysis report

Static analysis result for SHA-256 090225975f12e3a0…

MALICIOUS

PDF

77.5 KB Created: 2021-03-18 22:59:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 9fa455e413944f1d6489c4eec4470d30 SHA-1: 5d97e8ddeb490b1c4b0ba221d5bab6ce1eef1598 SHA-256: 090225975f12e3a0b1c31ac646c374b81827fbed09b72b1db544c0cc3fac5aeb
134 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/award?keyword=sony+action+cam+hdr+as50+manual+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4490746/normal_5feb570742c2d.pdfIn PDF document text
    • http://wegaturagifo.getenjoyment.net/download_twilight_saga_eclipse_in_hindi_filmyzilla.pdfIn PDF document text
    • http://woziwowariv.sportsontheweb.net/panasonic_microwave_oven_nn-sn766s.pdfIn PDF document text
    • http://zawopim.mygamesonline.org/21180750748.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487423/normal_5fdeb086de43e.pdfIn PDF document text
    • http://vilopeg.xyz/singer_touch_and_sew_7462_reviewsjrmm9.pdfIn PDF document text
    • http://niwadeg.mywebcommunity.org/mcgraw_hill_answers_science.pdfIn PDF document text
    • http://lawexape.mygamesonline.org/schindler_s_list_theme_sheet_music.pdfIn PDF document text
    • http://3-bureaureport.info/81674773557imbsq.pdfIn PDF document text
    • http://cosmostil.top/tipos_de_normasdqnm8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461250/normal_600e8d0f43146.pdfIn PDF document text
    • http://de-bewertung-id2842384.icu/pioneer_avh-x3600bhs_appslg59n.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470532/normal_6049ef5492508.pdfIn PDF document text
    • http://dotavulilego.mypressonline.com/echo_srm_230_carb_adjustment.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://9c12218e-e157-4070-b33f-4467b3cb42bb.filesusr.com/ugd/0c60a0_f8254d6aeec140739901896581217392.pdf?index=trueIn PDF document text
    • http://seroroxunabolu.onlinewebshop.net/origami_dinosaur_skeleton.pdfIn PDF document text
    • http://palexibibiw.atwebpages.com/juxivejejebibet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7655c9c3-9604-464b-b6af-a5373ab6859b/my_first_summer_in_the_sierra_john_muir_summary.pdfIn PDF document text
    • https://18e99e0c-7034-4a8c-9069-267580a295b8.filesusr.com/ugd/b337f5_803fb29eede04690bd117f0830be8fe4.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/d067aa09-b5c3-460c-bd71-16b719524f7f/nowabirejo.pdfIn PDF document text
    • https://679cd94f-bb1f-411a-9684-d99498fe93d6.filesusr.com/ugd/ce16d4_ca23a005863c4664b96fbf584e92578d.pdf?index=trueIn 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_off0000e9d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9D3 5864 bytes
SHA-256: acef63c5399ef83710e9d5c0ffad7ae8b502040032fb8bd12d21ced054f2d65d
font_01_sfnt_off0000fdad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDAD 12360 bytes
SHA-256: b736c0f196ffd628ae9a2a73ae8bc1b1b4555171da3871a1c450265126f97360

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