Malicious PDF — malware analysis report

Static analysis result for SHA-256 9dd9feb40e56a230…

MALICIOUS

PDF

80.4 KB Created: 2021-03-26 01:48:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 123d231c20ca0c00361d65168283cb0f SHA-1: 9c2568424e0506a3d31d00b7c510d66c08be7b5e SHA-256: 9dd9feb40e56a2308371704707f58678dfe3bd5a3a8c28f5df883ae519fd928a
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, which is likely used to deliver a secondary payload or redirect the user to a phishing site. The document body, though heavily obfuscated, suggests a lure related to a 'socio economic and caste census 2020 report pdf'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/award?keyword=socio+economic+and+caste+census+2020+report+pdf PDF link annotation
    • https://cdn.sqhk.co/vidujubotaf/JeMjcku/star_picket_driver_honda.pdfIn PDF document text
    • https://cdn.sqhk.co/nupumusu/HojdcX5/cashback_mobile_phone_deals_carphone_warehouse.pdfIn PDF document text
    • http://petersikdar.com/how_to_set_up_a_delonghi_portable_air_conditionery478d.pdfIn PDF document text
    • http://differencecheats.net/48741124484i4r1i.pdfIn PDF document text
    • https://cdn.sqhk.co/fovipobex/hiyvhj6/guided_reading_level_chart_dra.pdfIn PDF document text
    • http://raxewaponoxiv.mygamesonline.org/fenumutojuxe.pdfIn PDF document text
    • https://cdn.sqhk.co/letarezetap/CtjdgtM/fast_money_halftime_report_cnbc_fix.pdfIn PDF document text
    • http://xegisepereti.mygamesonline.org/sadibujuz.pdfIn PDF document text
    • http://fovikoxesaweziz.medianewsonline.com/bivavapisexenejukufatode.pdfIn PDF document text
    • http://zarabatyivat.ru/52718717498usb8t.pdfIn PDF document text
    • http://fekevopimibun.sportsontheweb.net/dakosifapox.pdfIn PDF document text
    • https://cdn.sqhk.co/menasimax/aNhfijI/vunuwafovuzirivama.pdfIn PDF document text
    • http://lalikexitaxixix.getenjoyment.net/booty_band_workouts.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/jakujakula/classification_of_acne_vulgaris.pdfIn PDF document text
    • https://s3.amazonaws.com/bogijexu/13108744590.pdfIn PDF document text
    • https://s3.amazonaws.com/zusevamasor/nizemagizetujoj.pdfIn PDF document text
    • https://s3.amazonaws.com/juvuraguvutoxif/97713389465.pdfIn PDF document text
    • https://s3.amazonaws.com/tigewibejageju/invitation_letter_for_training_program_template.pdfIn PDF document text
    • http://bopubedoru.myartsonline.com/cables_and_wires.pdfIn PDF document text
    • https://s3.amazonaws.com/zamemigojat/gunipotavuvamefozavogu.pdfIn PDF document text
    • http://sopexalibip.onlinewebshop.net/critical_theory_very_short_introduction.pdfIn PDF document text
    • https://s3.amazonaws.com/wapabefizosumi/jiwakejarivixib.pdfIn PDF document text
    • https://s3.amazonaws.com/gixirojozogufux/wexumajexutujaxopawitu.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_off0000fa39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA39 5648 bytes
SHA-256: 70a61596c04f719b5f527a3bd3ab6feaf84fb1c7e1496f74fe334e264c31b9de
font_01_sfnt_off00010d57.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D57 11704 bytes
SHA-256: c068a3381feb1e6b7658a78b6bea861304f68a630d997e86ca52b71757aab054

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