Malicious PDF — malware analysis report

Static analysis result for SHA-256 27514bbc2ff7f232…

MALICIOUS

PDF

65.1 KB Created: 2021-02-13 18:01:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 1156efd757b3cb0480a467a2fc73c0aa SHA-1: f82c4a637e900e3455b8d9929c577d7fa2abe8b8 SHA-256: 27514bbc2ff7f232a0068283c7f23358caaed726fa5d50f4fb8963e1e3d4b777
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://leonvi.ru/aws?utm_term=anglo+saxon+gods+and+goddesses+worksheets PDF link annotation
    • https://cdn.sqhk.co/mafowixodi/Zjbggig/damusawifunekuwewu.pdfIn PDF document text
    • http://nelitip.22web.org/call_blacklist_call_blocker_pro_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/mojesoje/cCvIDjh/lipenopuwoselirogajafo.pdfIn PDF document text
    • https://cdn.sqhk.co/zikufivol/aWjjfid/hits_rock_en_espanol_90.pdfIn PDF document text
    • https://cdn.sqhk.co/josurowelimu/jhf0eQB/15490769295.pdfIn PDF document text
    • http://vatasefapulik.iblogger.org/nebowebegupem.pdfIn PDF document text
    • https://cdn.sqhk.co/wugunifikezu/jfytajj/evertile_flooring_company.pdfIn PDF document text
    • https://cdn.sqhk.co/fuwunikuneg/3ggjhNf/51878940105.pdfIn PDF document text
    • https://cdn.sqhk.co/kerutadit/7EZmyhi/big_container_ship_simulator_extremes.pdfIn PDF document text
    • https://cdn.sqhk.co/numokafas/2asLINX/liziniwidimumori.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mowigefugitixa.epizy.com/ecosa_bamboo_sheets_review.pdfIn PDF document text
    • https://s3.amazonaws.com/fatikonavori/gepodepopunaper.pdfIn PDF document text
    • https://s3.amazonaws.com/luramamelolem/gymnastics_photoshop_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/mawesenasijoser/sulewud.pdfIn PDF document text
    • http://gagonunanu.epizy.com/adobe_photoshop_cs6_for_mac.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_off0000c2c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2C4 5300 bytes
SHA-256: 43003d706c48ea12819fe457b45a0843877968642aed2e51bcbc27a2f9920dfb
font_01_sfnt_off0000d4db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4DB 10156 bytes
SHA-256: 132506b05f442b56ceeda963112c34e9dbf8eac7b233b60728e7df6d0564b3f5