Malicious PDF — malware analysis report

Static analysis result for SHA-256 b82990e24c1e7afa…

MALICIOUS

PDF

72.5 KB Created: 2021-02-06 06:19:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 571068efd70c16e696feb4cb5f5db15c SHA-1: 6652bed14b94c642b668c32a95f4525117ef5331 SHA-256: b82990e24c1e7afa6362c1f4682966f0e5dd64b251d6f2093a46d11684d77588
194 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
  • 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/wb?keyword=butterfly%20inlay%20template%20pdf In PDF document text
    • https://votadewigul.weebly.com/uploads/1/3/0/7/130775387/buwusisu-lunejabelejisos-simajosirudul-reroxapagumuk.pdfIn PDF document text
    • https://tefojemitadu.weebly.com/uploads/1/3/1/6/131606809/basojoperamel.pdfIn PDF document text
    • https://fidojosamesevuf.weebly.com/uploads/1/3/4/5/134594598/8242475.pdfIn PDF document text
    • https://sibanixo.weebly.com/uploads/1/3/1/3/131380297/ranekim.pdfIn PDF document text
    • http://shortsomfj.space/gpsc_syllabus_2020_download46vmv.pdfIn PDF document text
    • http://ig-verifiedsbadge.com/69149381837lmjw3.pdfIn PDF document text
    • http://copyright-central-media.com/unblocked_games_dirt_bikeyzic8.pdfIn PDF document text
    • http://trokot-shtorki.online/joxuxasogededuwitozt7xxy.pdfIn PDF document text
    • https://pipedexow.weebly.com/uploads/1/3/4/8/134852679/rapobit-kiravezeviv-fazurelemeju.pdfIn PDF document text
    • http://itwomen.space/namapaxepapajibizadilujapn0l25.pdfIn PDF document text
    • http://pubguckazan.com/yugioh_card_guide_link_monstersyrtiw.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/bisute/tejesunuzapowub.pdfIn PDF document text
    • https://s3.amazonaws.com/juvuraguvutoxif/5490071744.pdfIn PDF document text
    • https://s3.amazonaws.com/kagedatabujo/hssc_lab_attendant_answer_key_evening.pdfIn PDF document text
    • https://s3.amazonaws.com/tevomenil/punekimoxokupukufujawu.pdfIn PDF document text
    • https://s3.amazonaws.com/turip/chrome_version_60.pdfIn PDF document text
    • https://s3.amazonaws.com/rotowan/dark_messenger_apk_ios.pdfIn PDF document text
    • https://s3.amazonaws.com/dosalapasenow/7826168277.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000de9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE9D 5160 bytes
SHA-256: f0d9cc483283874d479286068d1ed7eef9fd8bb9c51ed2dac812959b952ba114
font_01_sfnt_off0000f021.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF021 10848 bytes
SHA-256: 30c58ef80fc697e47364cab95c5370e1f6bf5ed69d81f3966174597af30c96a9

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