Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7fd70934eba73c7…

MALICIOUS

PDF

80.6 KB Created: 2021-01-20 13:18:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 38a719128e1db8eb5f787db0bd2fe29e SHA-1: cc089026c8a9971e19de02e25affdca33805c84e SHA-256: e7fd70934eba73c7810326012bcb5b769535fec6d5f0e4d3cabf97aff9c29e4f
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://leonvi.ru/aws?utm_term=sairat+2+full+movie PDF link annotation
    • https://cdn.sqhk.co/waxipefimafa/1tm3AjC/ben_ten_mod_minecraft_1._7._10.pdfIn PDF document text
    • https://popajilosofov.weebly.com/uploads/1/3/0/7/130776408/rakonewupes-vivabe-bolawoxolafuzod.pdfIn PDF document text
    • https://cdn.sqhk.co/wabajevebe/geTjaoc/wupixaganadaxonirowu.pdfIn PDF document text
    • https://cdn.sqhk.co/pobumepova/oDoVhc3/66142858542.pdfIn PDF document text
    • https://cdn.sqhk.co/lufelumad/ide29wk/marshmello_fortnite_skin.pdfIn PDF document text
    • https://nisixokavenofaf.weebly.com/uploads/1/3/4/8/134891603/3240566.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408711/normal_5fb6ea14306a5.pdfIn PDF document text
    • https://cdn.sqhk.co/kinibemazoz/dhhkjia/katafewutufijoro.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413867/normal_5fc7a7820c095.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451756/normal_5fa31a7ed18b1.pdfIn PDF document text
    • https://cdn.sqhk.co/pibegufuxova/zUghrhj/33029613972.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415740/normal_5f968b532aac2.pdfIn PDF document text
    • https://cdn.sqhk.co/xakawituk/jjgeMcN/44381313076.pdfIn PDF document text
    • https://sarotokatot.weebly.com/uploads/1/3/2/6/132682281/pokawate.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416805/normal_5ff115ed6a575.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403429/normal_5f9a9fb101113.pdfIn PDF document text
    • https://cdn.sqhk.co/nokotadi/e0hjurP/gaming_wallpaper_hd_download_for_android_mobile.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389104/normal_5fab5442589b0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000ff2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF2E 5028 bytes
SHA-256: f89ed61b96001fe7846f8d7b52bc798ed13fe5fd767c9936c39c1a7e412db467
font_01_sfnt_off0001103d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1103D 11116 bytes
SHA-256: ddfcb3b28fe3418186d420afcf3943d064fa84ccfe553dbd7ca47f3a69ba3602

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