Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c5d2ce10a311e68…

MALICIOUS

PDF

79.1 KB Created: 2021-04-20 04:12:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 70b7f72c7f2bf3c92b643a77bd75c48f SHA-1: 2743077c29ecd6638dfbe66f1c90a70cf83efb98 SHA-256: 6c5d2ce10a311e685acc5fa86a026be0641a534811363d04319377fd5b218b0c
126 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The document body, though heavily obfuscated, contains text related to connecting a Bluetooth mouse to a Mac, likely a lure to direct users to malicious URLs. The presence of numerous external URIs, many hosted on disposable domains, further supports a phishing or malware distribution intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9961

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
  • 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.
  • 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/strik?utm_term=how+do+i+connect+my+bluetooth+mouse+to+my+mac PDF link annotation
    • https://cdn.sqhk.co/xogovofofi/Hhdgheh/olympic_archery_bow_for_sale.pdfIn PDF document text
    • http://fisareboveda.getenjoyment.net/accounting_standards_meaning.pdfIn PDF document text
    • http://s-tochka.ru/bezier_curve_sketchup_free6zrpo.pdfIn PDF document text
    • https://cdn.sqhk.co/wuvotalek/jb96Ehg/42986396430.pdfIn PDF document text
    • http://filanion.online/33098399735ry42u.pdfIn PDF document text
    • https://cdn.sqhk.co/biwezabob/jhYijjb/radio_italia_anni_60_frequenza_napoli.pdfIn PDF document text
    • http://rajukilodagoje.mygamesonline.org/72613671701.pdfIn PDF document text
    • http://tertov.xyz/all_american_pressure_cooker_921cpoqn.pdfIn PDF document text
    • http://nakozek.mypressonline.com/who_makes_shop_vac_motors.pdfIn PDF document text
    • http://questotzvezd.space/the_book_of_fate_brad_meltzer69hye.pdfIn PDF document text
    • https://cdn.sqhk.co/soxuwutitaw/aggW6gg/4144262052.pdfIn PDF document text
    • http://xokapik.mywebcommunity.org/little_caesars_pizza_job_application.pdfIn PDF document text
    • https://cdn.sqhk.co/muxigatatini/jghiVie/lakonipulazawuwolo.pdfIn PDF document text
    • http://tenopokas.22web.org/dewalt_20_volt_max_xr_brushless_drill.pdfIn PDF document text
    • https://cdn.sqhk.co/nemazuwigumo/jjEgjha/piano_adventures_level_1_my_pony.pdfIn PDF document text
    • http://xulubapatoso.scienceontheweb.net/what_constitutes_a_breach_of_trust_and_confidence.pdfIn PDF document text
    • https://cdn.sqhk.co/penazavoxu/OIljeQz/lara_croft_relic_run_apk_mod_obb.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/medaliwifufugel/60944108490.pdfIn PDF document text
    • http://vezapuro.rf.gd/24879877846.pdfIn PDF document text
    • http://zuvolape.epizy.com/free_after_effects_templates_wedding_titles.pdfIn PDF document text
    • https://s3.amazonaws.com/kelageketisefuv/65592183768.pdfIn PDF document text
    • https://s3.amazonaws.com/labitajaxatufib/sap_abap_guide.pdfIn PDF document text
    • http://sisizovomejefi.epizy.com/les_aventures_prodigieuses_de_tartarin_de_tarascon.pdfIn PDF document text
    • https://s3.amazonaws.com/luramamelolem/vemoxofif.pdfIn PDF document text
    • https://s3.amazonaws.com/jevopemosod/dbms_stats.gather_schema_stats_example_12c.pdfIn PDF document text
    • http://gimezevu.epizy.com/english_worksheet_for_grade_4.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_off0000f4e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4E1 5380 bytes
SHA-256: 9e67ef434faeba5b74a6daeac5905bc481cf1cac6a92de2d66e0d35c8efa7509
font_01_sfnt_off00010716.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10716 11500 bytes
SHA-256: c7c27ee326a154aaf34618dd23903182e046524b582f37da979662f15acdc709

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