Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9727087d439cad9…

MALICIOUS

PDF

71.5 KB Created: 2021-02-19 10:48:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 1083cf80e7479f3002140b3f2d34f09a SHA-1: 5df51d47a6be30fc461b06593f87603b3887fe8c SHA-256: d9727087d439cad9688e6ed50650f11100afe537f018a2b6788e5502c03e02b8
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://druttle.ru/wix?keyword=rodeo+stampede+hack+apk+1.22.2 PDF link annotation
    • https://runumoviw.weebly.com/uploads/1/3/4/8/134854062/a8e4f7d38.pdfIn PDF document text
    • https://mejatuwunuzawe.weebly.com/uploads/1/3/0/7/130775850/c6a70e.pdfIn PDF document text
    • https://jumomemokipus.weebly.com/uploads/1/3/0/8/130874307/manowefezizoj.pdfIn PDF document text
    • https://lorudopop.weebly.com/uploads/1/3/4/3/134315835/902d722e5a.pdfIn PDF document text
    • https://fufiwixafuwisu.weebly.com/uploads/1/3/4/7/134770326/06e88e3c94c.pdfIn PDF document text
    • https://bodumiwi.weebly.com/uploads/1/3/1/4/131406735/8771387.pdfIn PDF document text
    • https://lumirofelefepo.weebly.com/uploads/1/3/4/8/134892557/kamotaki-wezadezutuwo-ximituluwonuzer-gabej.pdfIn PDF document text
    • https://fakavenudir.weebly.com/uploads/1/3/4/0/134042443/mixugerare.pdfIn PDF document text
    • https://tererenigi.weebly.com/uploads/1/3/1/4/131405956/tuwujagawo.pdfIn PDF document text
    • https://kuweperiti.weebly.com/uploads/1/3/4/9/134904821/pitiran.pdfIn PDF document text
    • https://dosupara.weebly.com/uploads/1/3/1/3/131380612/zuludidipezida-zijenamosopikef-rudewevi.pdfIn PDF document text
    • https://gawofatofuwe.weebly.com/uploads/1/3/1/3/131380275/volinoxu.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/gebukil/62045829123.pdfIn PDF document text
    • https://s3.amazonaws.com/kikunojulejuj/84324062644.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxefemebidaz/peavey_classic_30_head_weight.pdfIn PDF document text
    • https://s3.amazonaws.com/makumapikeze/digital_storage_oscilloscope_theory.pdfIn PDF document text
    • https://s3.amazonaws.com/vabemavuputenif/bonafide_certificate_format_for_college_students.pdfIn PDF document text
    • https://s3.amazonaws.com/wifiduxezo/3416044259.pdfIn PDF document text
    • https://s3.amazonaws.com/remavuj/90219883801.pdfIn PDF document text
    • https://s3.amazonaws.com/xasovewipeje/handwriting_without_tears_sample_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/kaxukok/bifabijabene.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_off0000da47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA47 5472 bytes
SHA-256: 3ae5d5e5a3a884110172cf23c7b3c694dfb6dc660074723d9ee9e5244ed3215f
font_01_sfnt_off0000ecd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECD3 10380 bytes
SHA-256: 31e93d35e23e1bcdc267734ffc3c38d456edc36e419fb8b90efe8168cb679056

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