Malicious PDF — malware analysis report

Static analysis result for SHA-256 02f60d1463e1ba6b…

MALICIOUS

PDF

66.4 KB Created: 2021-02-02 07:43:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 24723ca2bf02726cb18554cec50336e3 SHA-1: c385870554fb7c86d796f34084e376ddb7f2789a SHA-256: 02f60d1463e1ba6bee8f429c58a1423a3e087c822f96bee26fadaafd3e8b14f0
254 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
  • 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.
  • 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.
  • 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/wb?keyword=cover%20orange%20players%20pack%202 In PDF document text
    • https://motutipe.weebly.com/uploads/1/3/4/6/134674000/bevefef_lobaxukade_lepesesilupane.pdfIn PDF document text
    • https://volafonozus.weebly.com/uploads/1/3/0/7/130775232/a0d268.pdfIn PDF document text
    • http://rankingcoach-seo.com/nozobusewelisenenovom75rh.pdfIn PDF document text
    • https://sobemifukoku.weebly.com/uploads/1/3/4/8/134887972/4c3419a2.pdfIn PDF document text
    • https://cdn.sqhk.co/muwazubivotu/TheGh1c/26968528576.pdfIn PDF document text
    • https://giridoxaxe.weebly.com/uploads/1/3/4/7/134703098/9147d478ba.pdfIn PDF document text
    • https://cdn.sqhk.co/gabadifofibo/jjghgg7/free_mp3_download_for_android_online.pdfIn PDF document text
    • https://cdn.sqhk.co/pivokazi/4Oicehf/70281960760.pdfIn PDF document text
    • http://lavkavkusa.store/nibofevasidolatok2cpa0.pdfIn PDF document text
    • https://zezevibowavaki.weebly.com/uploads/1/3/4/8/134854125/nosepexidoxez.pdfIn PDF document text
    • https://roxuxafuz.weebly.com/uploads/1/3/0/8/130813852/8824f29f473d45.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/wudibirewuduto/vemabilenotofu.pdfIn PDF document text
    • https://s3.amazonaws.com/rewepalazamiso/svb_informatique_monaco.pdfIn PDF document text
    • https://s3.amazonaws.com/tubukeganuji/jogos_gratis_para_pc_windows_7.pdfIn PDF document text
    • https://s3.amazonaws.com/mulerux/endorsement_template_candidate.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_off0000c5c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5C5 5364 bytes
SHA-256: 1cdf022c640df90abfffe8648732c2f44ee1c9571745262b2668c430b1d7f33d
font_01_sfnt_off0000d825.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD825 11684 bytes
SHA-256: 980ceadc7227ba7861f44cf2e0a31333e54a1f0093e83ad96c616bf4fd92744c

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