Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b60e6086e07294a…

MALICIOUS

PDF

92.0 KB Created: 2021-03-09 01:26:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: a3e1b8b8b368ea119c9a25381c635ebb SHA-1: 5e2964b38fec2310b72f0df4de8239685f03ec76 SHA-256: 2b60e6086e07294a2945fb7d621c3769baef13a69bb75a6e6a799a247212ac27
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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jottigo.ru/123?utm_term=cell+membrane+transport+biology+worksheet PDF link annotation
    • http://nupesupo.mypressonline.com/digital_product_designer_salary_uk.pdfIn PDF document text
    • http://mesovaronelabob.iblogger.org/8452055262.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374853/normal_60373607ef776.pdfIn PDF document text
    • http://potobol.22web.org/math_symbols_meaning.pdfIn PDF document text
    • http://widonatozeg.mypressonline.com/guxudetizofajoderoma.pdfIn PDF document text
    • http://dotavulilego.mypressonline.com/33783117288.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4443356/normal_5ff3e485511c4.pdfIn PDF document text
    • http://kazotapojiwi.mywebcommunity.org/40485287585.pdfIn PDF document text
    • http://kesuvajeb.scienceontheweb.net/why_does_my_kitchenaid_dishwasher_not_drain.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472793/normal_5fc9984120754.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4386824/normal_60465fcb35d4f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dipagepe.atwebpages.com/randomized_algorithms_tutorialspoint.pdfIn PDF document text
    • http://zejagusip.rf.gd/poxera.pdfIn PDF document text
    • http://kewakapukuz.rf.gd/macintosh_s_lament_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/dobikasukavu/75315015157.pdfIn PDF document text
    • https://s3.amazonaws.com/regufojalojaza/game_bn_sng_sinh_tn_android.pdfIn PDF document text
    • https://s3.amazonaws.com/tolivajupeku/nunetiku.pdfIn PDF document text
    • http://bogalibamadom.myartsonline.com/37229748629.pdfIn PDF document text
    • https://s3.amazonaws.com/sazixipame/galoro.pdfIn PDF document text
    • https://s3.amazonaws.com/wobuzisibal/41332591537.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_off00012d16.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12D16 5536 bytes
SHA-256: 2d8e6eca5c1360b9d1dbf917ad07c72fc7dfaa443090ecfd0df7d7482c995b7c
font_01_sfnt_off00013fc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13FC8 10128 bytes
SHA-256: de079347ad39d9701afd53a5c7b63a0773141e50bd25bb149e35209bd7055eeb

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