Malicious PDF — malware analysis report

Static analysis result for SHA-256 eddaf3f2a3d1489a…

MALICIOUS

PDF

72.6 KB Created: 2021-03-03 02:01:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2f199e67ddbce2ae9c82d36247a90139 SHA-1: 3a7b03da35e0dc2906c3f98a99d678a49100505b SHA-256: eddaf3f2a3d1489a77d3ba87307ad0c08f1c8a32948f8bb403e75cd21965f959
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://fokemale.ru/award?keyword=how+to+fix+printer+error+canon PDF link annotation
    • https://cdn.sqhk.co/xanovixewin/T9ieiS7/bird_stack_jumping.pdfIn PDF document text
    • https://cdn.sqhk.co/dawupana/CPjjiiu/16831999267.pdfIn PDF document text
    • https://pegogelixuj.weebly.com/uploads/1/3/0/8/130813965/4605961.pdfIn PDF document text
    • http://betmoy56.com/wupipatatebopifig2ma4e.pdfIn PDF document text
    • https://cdn.sqhk.co/zojixemem/yUheLWk/coupon_barcode_scanner_apple.pdfIn PDF document text
    • https://cdn.sqhk.co/jivonaxadu/Tjdgc3o/the_chosen_app_for_mac.pdfIn PDF document text
    • https://vusexojepaxeva.weebly.com/uploads/1/3/4/0/134096357/zarut_fowawut.pdfIn PDF document text
    • https://cdn.sqhk.co/sudizatase/ifhfNqI/atlantic_bubble_start_date.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/pululusodogi/80495375617.pdfIn PDF document text
    • https://s3.amazonaws.com/wutisigila/centos_8_beta_iso.pdfIn PDF document text
    • https://s3.amazonaws.com/jujadodedaruxix/antivirus_online_android.pdfIn PDF document text
    • https://s3.amazonaws.com/mexavofezoxi/desipanafibifipazokuwet.pdfIn PDF document text
    • https://s3.amazonaws.com/zuwosil/49478551232.pdfIn PDF document text
    • https://s3.amazonaws.com/gekixadonuru/emporio_armani_ar1808_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/kevava/vlookup_between_two_sheets_vba.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_off0000e135.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE135 4920 bytes
SHA-256: 318423f9298c00f8d89fe4c5246c01a386c0d08d35cb144921b476a7b28a6672
font_01_sfnt_off0000f21b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF21B 10428 bytes
SHA-256: 269a7c63d9b3c14966ea6271588118c0576ab0fd69ccb800e678fe9398ea6c0d