Malicious PDF — malware analysis report

Static analysis result for SHA-256 824cc064f7596a1e…

MALICIOUS

PDF

75.8 KB Created: 2021-03-14 16:24:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: 41e38e21065b4f9e9a440e636f7358ca SHA-1: cd9a4184d30f5df30bb019ff10024d3dbb6961d8 SHA-256: 824cc064f7596a1e6a3312ac53ad7b60227160da3c403b53f9bee6653872b14a
146 Risk Score

Malware Insights

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

This PDF document was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The presence of numerous external URIs, many hosted on disposable domains or link farms, strongly suggests a phishing or scam attempt. The document body, though heavily obfuscated, contains what appears to be a search query, further supporting the lure-based attack pattern. No scripts were extracted, but the overall structure and URL patterns are indicative of a malicious phishing document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

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 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) documents that carry no urgency or charge/dispute escalation.
  • 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://jumiwimov.ru/strik?utm_term=where+is+panic+button+on+simplisafe+key+fob PDF link annotation
    • https://cdn.sqhk.co/wobuwozavenu/WAhjtuJ/lifeafter_gameplay_2020.pdfIn PDF document text
    • https://pajodutakimileg.weebly.com/uploads/1/3/4/4/134474341/5203184.pdfIn PDF document text
    • http://ratonawe.iblogger.org/31139649963.pdfIn PDF document text
    • http://winovigamaj.mygamesonline.org/podunofo.pdfIn PDF document text
    • https://guwawafike.weebly.com/uploads/1/3/5/3/135338161/lorixutuj-jugubi-levetajud.pdfIn PDF document text
    • http://rumafelaneli.mygamesonline.org/zupaxut.pdfIn PDF document text
    • https://xuvelufuxilo.weebly.com/uploads/1/3/5/3/135387868/e744553b4bd0.pdfIn PDF document text
    • https://pixelisikug.weebly.com/uploads/1/3/1/4/131407736/tuzaxetenovimow_vetibikunu_nimetinopulatum_limijufaxowe.pdfIn PDF document text
    • https://cdn.sqhk.co/datawafag/fichjH2/sheetrock_lift_extension.pdfIn PDF document text
    • http://tulomodev.getenjoyment.net/where_are_american_home_sewing_machines_made.pdfIn PDF document text
    • https://vatifogogunubit.weebly.com/uploads/1/3/4/7/134725392/lozukitago_masekaxemivaj_dunirosuneni_pixopobefofef.pdfIn PDF document text
    • https://cdn.sqhk.co/gixelotopa/zehjieE/rudipijigunole.pdfIn PDF document text
    • https://nokogijesa.weebly.com/uploads/1/3/1/4/131452879/5109cb7481892.pdfIn PDF document text
    • https://kobamaputoruv.weebly.com/uploads/1/3/1/4/131409310/bidimipekiti.pdfIn PDF document text
    • http://budokudepa.scienceontheweb.net/wizujawirud.pdfIn PDF document text
    • http://ravovenovibu.medianewsonline.com/what_does_old_pawn_navajo_mean.pdfIn PDF document text
    • https://cdn.sqhk.co/jomonufo/Hgbgghh/download_psx4droid_apk_bios.pdfIn PDF document text
    • http://lebojabufi.medianewsonline.com/rijibav.pdfIn PDF document text
    • https://cdn.sqhk.co/dasoxitif/hb6tigi/development_class_10_questions_and_answers.pdfIn PDF document text
    • https://nofixemi.weebly.com/uploads/1/3/6/0/136082439/9c34d0318def371.pdfIn PDF document text
    • http://fevofawemuwa.medianewsonline.com/when_is_sony_rx10_v_coming_out.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nisetekotixob.myartsonline.com/3048268711.pdfIn PDF document text
    • http://dezologukow.rf.gd/chalte_chalte_movie_song_ming.pdfIn PDF document text
    • http://pudofifomabevin.rf.gd/m-audio_fast_track_windows_10_drivers.pdfIn PDF document text
    • http://tujatubaniza.epizy.com/mekanisme_kerja_amoksisilin.pdfIn PDF document text
    • http://voturugivorajop.onlinewebshop.net/vandana_shiva_soil_not_oil.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_off0000e81d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE81D 5576 bytes
SHA-256: 44939fa3c49e257d5c2953786269960205388a3c65946bc71f4f33b5e85a4e42
font_01_sfnt_off0000fafb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAFB 10732 bytes
SHA-256: 1ed77128fc606d6c9ed508991873cec7f6457ecae499af5fd888fc1cc2e588a1

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