Malicious PDF — malware analysis report

Static analysis result for SHA-256 c108d47cd5ba28fb…

MALICIOUS

PDF

78.9 KB Created: 2021-03-01 06:47:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: c7d7ae0c25e4b1d693de46563cd456c9 SHA-1: d6bbf2b94d8491a36a2c3ae2982df2e81fc8fb05 SHA-256: c108d47cd5ba28fb87994161e37591f931e8dd94d4eb4719ed22742474b31fad
96 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 and an ML classifier, indicating malicious intent. The embedded URL, https://botokaw.ru/123?utm_term=how+to+make+green+eggs+and+ham+with+food+coloring, likely leads to a phishing or malware distribution site. Although no scripts were explicitly extracted, the PDF structure and embedded URI heuristic suggest it's designed to redirect the user to a malicious external resource, likely as part of a phishing campaign.

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://botokaw.ru/123?utm_term=how+to+make+green+eggs+and+ham+with+food+coloring PDF link annotation
    • http://rrrrkkkkk.space/taxilobejalozowown454q.pdfIn PDF document text
    • http://souve.me/56127992711mgyzv.pdfIn PDF document text
    • http://komaxinatobofe.medianewsonline.com/84807610295.pdfIn PDF document text
    • http://toolsbestpricemicrometer.site/christian_meaning_of_the_number_6048rpbs.pdfIn PDF document text
    • http://gedatidigog.sportsontheweb.net/maytag_3000_series_washer_drain_pump.pdfIn PDF document text
    • http://dektesheff.xyz/abcd_tamil_dubbed_movie_in_isaiminizhhtn.pdfIn PDF document text
    • http://lokubakodo.getenjoyment.net/thermador_oven_manual.pdfIn PDF document text
    • http://brandframeb.com/quarterly_payroll_taxes_form_941d64mg.pdfIn PDF document text
    • http://kikababono.mywebcommunity.org/20214413338.pdfIn PDF document text
    • http://xojuxelase.medianewsonline.com/87037839253.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pogetowem.onlinewebshop.net/13118057738.pdfIn PDF document text
    • https://s3.amazonaws.com/pafiganovavi/39512351212.pdfIn PDF document text
    • https://s3.amazonaws.com/fajetufekejo/cell_structure_diagram_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/wusone/sijosezarawa.pdfIn PDF document text
    • https://s3.amazonaws.com/wekibik/tedipejupagajifovefobame.pdfIn PDF document text
    • https://s3.amazonaws.com/sizabo/vubemebafetonor.pdfIn PDF document text
    • http://zogosugo.onlinewebshop.net/47955192603.pdfIn PDF document text
    • https://s3.amazonaws.com/xijuxosisomuna/difference_between_affect_and_effect_worksheet.pdfIn PDF document text
    • http://zuvuzevo.atwebpages.com/how_much_is_a_70_inch_tv_at_best_buy.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_off0000f75c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF75C 5552 bytes
SHA-256: 02f1f9f479edf9e4e525c675d79e551491a025c7fddcddb4de31f1ccf75f2e8f
font_01_sfnt_off00010a20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A20 10504 bytes
SHA-256: b5f722443e0fd6e80e33b8599f287b2f8cb696329fc0dcae511d8e5ce81951ef