Malicious PDF — malware analysis report

Static analysis result for SHA-256 0cc0ad949fec8937…

MALICIOUS

PDF

89.7 KB Created: 2021-03-19 06:35:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: b6a1e7ea46312f98ea87aef07d13a4d8 SHA-1: 3c700791b90811d9ac60eada3e481aefdd5fe789 SHA-256: 0cc0ad949fec89379336e4698df26efd123b2535b12267cc49d8f66c892e8370
156 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 a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://midufefew.ru/strik?utm_term=individual+development+plan+examples+for+leadership PDF link annotation
    • https://kavavori.weebly.com/uploads/1/3/4/0/134012315/b02fb6.pdfIn PDF document text
    • http://sifimomikev.sportsontheweb.net/saint_augustine_confessions_summary_book_7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449616/normal_60009efbbd02e.pdfIn PDF document text
    • http://nafigunagofadab.getenjoyment.net/40994565791.pdfIn PDF document text
    • https://totofogekof.weebly.com/uploads/1/3/5/3/135327731/481a4e44.pdfIn PDF document text
    • http://pogibofabut.getenjoyment.net/bibby_coupling.pdfIn PDF document text
    • http://sozimaxetupow.mywebcommunity.org/present_continuous_tense_practice.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426415/normal_5fd96f2326c5c.pdfIn PDF document text
    • http://wisatemubudu.medianewsonline.com/basic_italian_phrases_youtube.pdfIn PDF document text
    • http://fosavaxenu.mypressonline.com/miller_cst_280_price_in_uae.pdfIn PDF document text
    • https://bekariniwoxisit.weebly.com/uploads/1/3/2/7/132710774/2761281.pdfIn PDF document text
    • https://bifugojatomawak.weebly.com/uploads/1/3/1/4/131437093/tinasufeko.pdfIn PDF document text
    • https://gubulugovidenu.weebly.com/uploads/1/3/1/4/131406252/jomaw_ziputivo_renodawezila_ledupokogupub.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://4f0754e2-f0c4-47db-826b-83042027646c.filesusr.com/ugd/7a11b0_248ce061b27c487187fee28545bc3073.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/lakadutof/android_app_barcode_scanner_to_spreadsheet.pdfIn PDF document text
    • https://s3.amazonaws.com/gixawetopoli/aditya_hridaya_stotra_in_english.pdfIn PDF document text
    • https://dbb1fad9-9c05-458f-9e32-bc0b7f65d7ec.filesusr.com/ugd/451461_89ab08a6d04b45e9ad88234c4cffa659.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/liwafo/reading_plus_level_e_answer_key.pdfIn PDF document text
    • http://panexorumilogim.myartsonline.com/woputeg.pdfIn PDF document text
    • https://s3.amazonaws.com/murudute/ximeb.pdfIn PDF document text
    • http://manuwakagekewu.onlinewebshop.net/kemitekaziraj.pdfIn PDF document text
    • https://s3.amazonaws.com/zozuxukoxo/on_becoming_a_person_by_carl_r._rogers.pdfIn PDF document text
    • https://4bc473c2-84d0-4913-8b4e-281bf44fba2e.filesusr.com/ugd/a25dbd_52466c4ed446466c9d08fc08c8eef2b1.pdf?index=trueIn 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_off000120c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x120C2 5344 bytes
SHA-256: 9f6b2cd5effa602df57fe38eaaba222ef99c3ac4208bbfd07de7f52bfaa75a1b
font_01_sfnt_off000132d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x132D0 11288 bytes
SHA-256: 079ccc51f7e09520221ee2adcad11590d9d5ae5ce1e8d409f904536b89fa0931

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