Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0d38c49d12969dc…

MALICIOUS

PDF

78.5 KB Created: 2021-04-02 18:42:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 6ad063d2d97a562ff898b55d4f8cf138 SHA-1: babcd60fd3cd34a9ae9f1806886924b887cc06da SHA-256: a0d38c49d12969dc64dac9ee788641a65878bffcd7c49ab822d8f701c410161f
136 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a high-severity 'PDF_SEO_UTM_REDIRECTOR_LINK' and a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The document body contains a lure related to 'car tyre repair' and a link to a redirector URL, indicating a phishing or malware distribution attempt. No scripts were extracted, but the presence of embedded URLs and the overall detection suggest a malicious intent to redirect users to harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://bologen.ru/strik?utm_term=car+tyre+repair+near+me+open+sunday PDF link annotation
    • http://wodekenizowa.getenjoyment.net/17510687482.pdfIn PDF document text
    • http://kimisorunutom.medianewsonline.com/belzona_1311.pdfIn PDF document text
    • http://hookup157.online/zitodaxevosimapovapazekuzk6l57.pdfIn PDF document text
    • http://rulogojaratimad.22web.org/grading_sheet_deped_tambayan.pdfIn PDF document text
    • http://form-lnstagramverificationbadge.com/xepexudopijomulisekanozyzjtf.pdfIn PDF document text
    • http://nizavevorupuj.mywebcommunity.org/57403286161.pdfIn PDF document text
    • http://constructionhouse.info/stars_live_wallpaper_picker_apkpurenvgcc.pdfIn PDF document text
    • http://vigirorimikana.medianewsonline.com/lng_bunkering_procedure.pdfIn PDF document text
    • http://fawikenaxalu.scienceontheweb.net/mufutemazisonakipo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/nafibanefexex/bexal.pdfIn PDF document text
    • http://nabotiwufonego.epizy.com/pupcet_admission_form.pdfIn PDF document text
    • https://s3.amazonaws.com/dinigugaxej/zelubexudiredojodolij.pdfIn PDF document text
    • http://danetuxu.rf.gd/piping_isometric_drawing_book.pdfIn PDF document text
    • https://s3.amazonaws.com/tobobowu/how_to_plant_loose_leaf_lettuce_seeds.pdfIn PDF document text
    • http://vigexosav.myartsonline.com/60857302969.pdfIn PDF document text
    • http://tidusuf.rf.gd/bracket_html_editor.pdfIn PDF document text
    • https://s3.amazonaws.com/sowewazulejewi/47765296038.pdfIn PDF document text
    • https://s3.amazonaws.com/risisipajole/detugarivebuvedoxezodux.pdfIn PDF document text
    • https://s3.amazonaws.com/likerajatob/70660656149.pdfIn PDF document text
    • https://s3.amazonaws.com/xovekolamoxe/welof.pdfIn PDF document text
    • https://s3.amazonaws.com/rikolesafuwofar/zizulenosudisaremuv.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f741.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF741 5080 bytes
SHA-256: 13a686d05322c711de0cae22eccb1b17a27c945e796c5420d651222210385ff4
font_01_sfnt_off00010878.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10878 10688 bytes
SHA-256: ea738f10f63a94846a5c1a748bb9a3734c347935bc471b37b59fb73a639447d4

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