Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5922e09e38d168c…

MALICIOUS

PDF

74.7 KB Created: 2021-02-28 07:31:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 3fce8426c908f9d4f909db055f391bfb SHA-1: 6d329c29697f0dc570ec69c62b93a14eacd19331 SHA-256: e5922e09e38d168cc3a31b96269446a06d6e58456bdb6e17230a88a891665470
186 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/123?utm_term=schwinn+mountain+bike+at+walmart PDF link annotation
    • https://cdn.sqhk.co/ferobisuw/8DLQcij/how_to_write_on_file_windows_10.pdfIn PDF document text
    • https://jezulusawuse.weebly.com/uploads/1/3/4/0/134000263/5f3c531.pdfIn PDF document text
    • http://espacecmb.xyz/keva_contraptions_guide_booktgezy.pdfIn PDF document text
    • https://libexezelidod.weebly.com/uploads/1/3/1/4/131454359/a8f2b6147e6b.pdfIn PDF document text
    • http://tdsevsvet.ru/sap_basis_tutorial_for_beginnersm6qgz.pdfIn PDF document text
    • https://kovexinuzik.weebly.com/uploads/1/3/0/8/130815277/xelalaxovite_vadikigako_ponofugexodab_zovemerosorije.pdfIn PDF document text
    • https://lodikesilir.weebly.com/uploads/1/3/4/8/134868057/4410995.pdfIn PDF document text
    • https://bizitaninajoki.weebly.com/uploads/1/3/5/3/135316521/3734660.pdfIn PDF document text
    • https://bonopabugo.weebly.com/uploads/1/3/4/5/134581776/38eb6d2a5.pdfIn PDF document text
    • https://gebijodefilamoz.weebly.com/uploads/1/3/1/4/131406109/pazebapipawevewutari.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486748/normal_603a026891221.pdfIn PDF document text
    • http://begiguvok.iblogger.org/rafuperodikezuxeb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385228/normal_6007fd45e82c7.pdfIn PDF document text
    • http://bufaturofonoko.22web.org/icy_veins_wow_warrior_leveling_guide.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://legumanob.rf.gd/jutivizipibalep.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_off0000e7d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7D6 5260 bytes
SHA-256: c077befff2b3ca4b4272ea038bb30c92c9863f8904c79b050a24d32a893ac7f8
font_01_sfnt_off0000f9a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9A3 10644 bytes
SHA-256: 1ab0f82a179cb329c1aa0f668fdef4957534b2d68c5de4ef55e6559aaf1614b3