Malicious PDF — malware analysis report

Static analysis result for SHA-256 cdeed600a779a9ed…

MALICIOUS

PDF

73.0 KB Created: 2021-02-14 03:09:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 08678b1485405b125eac5b7a07fe6f7c SHA-1: 17cd1a78c31e18f028efd7073a6c1b659eb70cda SHA-256: cdeed600a779a9edc01d0805b24058190dea21863ab7fc3b84d6e94499704c3d
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wix?keyword=third+crusade+map In PDF document text
    • http://vannabanyavsedela.xyz/lilagowoxoso8v2xx.pdfIn PDF document text
    • http://italysummer.fun/41963439818xkgxp.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495246/normal_600a767a17d98.pdfIn PDF document text
    • http://lalat.space/criminal_case_lookup_njj8234.pdfIn PDF document text
    • http://domensita.fun/analog_efex_pro_2_presets26lgy.pdfIn PDF document text
    • https://cdn.sqhk.co/dibitarebizu/iihhgpZ/26420053344.pdfIn PDF document text
    • https://cdn.sqhk.co/kobadaxo/hVjagiA/land_rover_discovery_300tdi_off_road_for_sale.pdfIn PDF document text
    • http://cetop.xyz/applications_of_cloud_computing_in_educationi0jhl.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/babetafaperaxov/application_software_functions.pdfIn PDF document text
    • https://s3.amazonaws.com/zuwimadaneb/background_wallpapers_for_picsart.pdfIn PDF document text
    • https://s3.amazonaws.com/bopuxosavubare/come_on_get_happy_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/jasipefulaxiduj/40294277977.pdfIn PDF document text
    • https://s3.amazonaws.com/zidosozawok/battlefield_4_premium_ps3_free.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_off0000e369.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE369 5232 bytes
SHA-256: 10bf65f3c558024e6d01dfa45c443fbd623440c51a4252d89fe897e7c1ca8175
font_01_sfnt_off0000f503.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF503 10028 bytes
SHA-256: 13eb3515c168e586d84acd092881416eacf25594cf313c9f525cbb123a85a775