Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7b5083023407a8e…

MALICIOUS

PDF

79.4 KB Created: 2020-11-11 20:35:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 0a184c3acfc49aa73619e05ad5065766 SHA-1: db1c2f6bc5e5bf7677b7f7e4ba4e2970889668bb SHA-256: c7b5083023407a8e71c5045fd11e2aafb2ec98bf6cd6ae36ea72d2d7083f7d75
96 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 external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://traffking.ru/aws?utm_term=definicion+de+bulimia+y+anorexia+pdf PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/48f4221e-551f-40e9-8556-92ca2ee21a22/replacement_glass_for_patio_table_top.pdfIn PDF document text
    • https://s3.amazonaws.com/simujix/inner_loop_vs_outer_loop_495.pdfIn PDF document text
    • https://s3.amazonaws.com/jozetej/buyest_opinion_meaning.pdfIn PDF document text
    • https://s3.amazonaws.com/wotodedaruzuk/nininobemozunaguki.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d96fbb3a-2425-4de0-8490-a84493459ca2/esv_illuminated_bible_art_journalin.pdfIn PDF document text
    • https://s3.amazonaws.com/pugomonapoxuxe/45378202610.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7e0747f-28c2-4390-863d-6e958b303b02/56432130297.pdfIn PDF document text
    • https://s3.amazonaws.com/dalava/ccnp_bgp_interview_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/zuguvoxoki/lunogesasofasoleral.pdfIn PDF document text
    • https://s3.amazonaws.com/julaxel/west_sacramento_business_license_lookup.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0200d220-a871-45ba-a097-d823be3a75bd/fibareniwi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c0e9ff3-8e60-4c5d-abf6-218ca773f1bc/pawud.pdfIn PDF document text
    • https://s3.amazonaws.com/divikufifir/milton_nh_elementary_school_website.pdfIn PDF document text
    • https://s3.amazonaws.com/tezofuretejom/caciquismo_en_mexico.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB23 5232 bytes
SHA-256: b2dfad52c55e14edc84ab52c9602264467029b1b3ae81007c3010d15b41d5978
font_01_sfnt_off0000fcd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCD6 11536 bytes
SHA-256: c367f311d48444e817fac2a5443682c0c6925c2177946b4df7a3a1681fdc0cf6
font_02_sfnt_off00012299.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12299 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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