Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c7bc033ba1009c2…

MALICIOUS

PDF

74.8 KB Created: 2021-02-10 06:56:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 320b7f5b2832f9e9fda0dc68cba591f1 SHA-1: d522b9c5c6086dc4ad16000d47954e5fba3a7bb3 SHA-256: 2c7bc033ba1009c24945b8d5fc006d5349d4dc60e94f0f00bd4bf916b2949efc
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://jacksth.ru/123?utm_term=concilio+de+nicea+787 PDF link annotation
    • http://wiinorama.space/gakunowejiroponuwug4r.pdfIn PDF document text
    • https://cdn.sqhk.co/jumupebuvi/iYSicoT/ligiba.pdfIn PDF document text
    • http://fanogizakelime.iblogger.org/7701801784.pdfIn PDF document text
    • https://cdn.sqhk.co/zawileveruz/bgijjgd/frontline_commando_d_day_mod_apk_apkhouse.pdfIn PDF document text
    • http://bettermoneytips.com/fruit_slice_master_appqowvb.pdfIn PDF document text
    • https://cdn.sqhk.co/kixobaza/eIhjNii/revezuj.pdfIn PDF document text
    • https://cdn.sqhk.co/jovowosifo/evjejfp/bird_of_paradise_plant_pics.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/subopukomanaw/17638531246.pdfIn PDF document text
    • https://s3.amazonaws.com/farowug/47598207265.pdfIn PDF document text
    • http://wezexezawudev.rf.gd/belladonna_of_sadness_free.pdfIn PDF document text
    • https://s3.amazonaws.com/domegagowevag/axton_guide_bl2.pdfIn PDF document text
    • https://s3.amazonaws.com/jevedijadiki/16447366832.pdfIn PDF document text
    • http://donovebar.rf.gd/parenthood_season_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/jasipefulaxiduj/abrahamin_santhathikal_malayalam_movie_in_tamilrockers.pdfIn PDF document text
    • https://s3.amazonaws.com/ziwuvijevo/7366817681.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_off0000e7a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7A1 4836 bytes
SHA-256: 9596218b750c020cc63ea6acc1257bdfa7ff7b302a334fdb2e61ff4c35f5d491
font_01_sfnt_off0000f828.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF828 11988 bytes
SHA-256: 82458157a808dad58a91d519829e1ab7f5a997d73a614a31eefa607d08c15334