Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a0c3d9def31cb44…

MALICIOUS

PDF

74.7 KB Created: 2021-02-22 22:39:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: dfc70721b2ebab447d84177356c89e20 SHA-1: 7b820069324ec9e2cc4dffa9ab6b9188d899eb32 SHA-256: 6a0c3d9def31cb44deabb90674e66a00326ce2875306ba1c9ef6ae90c63b03cc
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://jottigo.ru/wb?keyword=ariens%20compact%2022%20engine%20oil PDF link annotation
    • https://cdn.sqhk.co/fijajiles/idM7vV0/new_top_100_ringtones_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/xafiguzi/jjRticB/juvojikavozem.pdfIn PDF document text
    • http://summ-ita.space/rutejowatibomerijejufasl5efm.pdfIn PDF document text
    • http://max-lifting.store/how_to_use_the_control_solutiona4c1k.pdfIn PDF document text
    • https://cdn.sqhk.co/bemoranoz/ggJiiig/94728823487.pdfIn PDF document text
    • http://grampus-shop.com/suburban_rv_furnace_issuesiu7uk.pdfIn PDF document text
    • http://gnoogle.site/follow_up_email_template_to_recruiterwsqkf.pdfIn PDF document text
    • https://cdn.sqhk.co/pivugisaxap/Ihdg2yu/fojufozerisodewuge.pdfIn PDF document text
    • https://cdn.sqhk.co/gizivapejoko/dmib7HQ/blitz_bubble_gun_instructions.pdfIn PDF document text
    • https://cdn.sqhk.co/luwokiseg/C2jeif8/nebarofukuwi.pdfIn PDF document text
    • http://merovew.xyz/97813070540ojg6u.pdfIn PDF document text
    • https://cdn.sqhk.co/banamasuvaj/ji3suRu/used_mobile_homes_for_sale_ludowici_ga.pdfIn PDF document text
    • https://cdn.sqhk.co/vufuvevu/Zieig8n/paper_toss_2._0_ios.pdfIn PDF document text
    • https://cdn.sqhk.co/vifamepupib/Iycgcha/download_shoujo_city_anime_game_mod_apk.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/fixararololu/68574476283.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_off0000eaf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAF0 5372 bytes
SHA-256: 15bdf56106ccf3f1fbb553cb7243f903c2a30cb65e231152e99b8c3f0cd9446a
font_01_sfnt_off0000fd20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD20 9676 bytes
SHA-256: e8b0241c4d15611ebcd06fe20dce9ebff29aeb1523af16cdf712e0ec0b4b59c7