Malicious PDF — malware analysis report

Static analysis result for SHA-256 9aeea338d9567b80…

MALICIOUS

PDF

76.1 KB Created: 2021-09-24 11:26:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-23
MD5: dfd19a7469feb0eddf9fe00645e12f3c SHA-1: bd1bd9c6716f97be5bb9f5af4a0f7dc419e61c1b SHA-256: 9aeea338d9567b802b5cbe249134758ab3d9b3e7ee7c8dcdee744d36d8c0869d
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9908

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
  • 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://archism.ru/uplcv?utm_term=pewdiepie+tuber+simulator+hack+apk+download PDF link annotation
    • http://sgyscom.com/upload_fck/file/2021-9-17/20210917165255359529.pdfIn PDF document text
    • https://portalbime.com/UploadedFiles/New/file/wufegajetalagetel.pdfIn PDF document text
    • http://sunway.me/uploads/file/151033222264.pdfIn PDF document text
    • http://vanhacollection.com/images/files/11324238155.pdfIn PDF document text
    • http://bookblog.kr/data/file/files/94387852643.pdfIn PDF document text
    • http://12shio5.com/contents/files/xuwajibepuv.pdfIn PDF document text
    • http://kotolantopeni.cz/file/42917295088.pdfIn PDF document text
    • https://crcnueva.naturasoftware.com/uploads/images/files/92927275575.pdfIn PDF document text
    • http://poney-club-romilly-aigre28.fr/userfiles/file/bapogewogufunufunev.pdfIn PDF document text
    • https://generalaudit.pl/eurostyl/photos/file/sudadiwafakolamuvukef.pdfIn PDF document text
    • http://ck-kutnahora.cz/gais/image/file/sapunifisugogabuwagevogat.pdfIn PDF document text
    • http://gongotour.com/FileData/ckfinder/files/20210914_5F0B1A1AD3E33E49.pdfIn PDF document text
    • https://www.hdontheroadnapoli.it/wp-content/plugins/formcraft/file-upload/server/content/files/16143d70383c55---56095602335.pdfIn PDF document text
    • http://haki.tincorner.com/uploads/files/suxez.pdfIn PDF document text
    • http://dekoblickfang.de/userfiles/file/50185491289.pdfIn PDF document text
    • http://www.hgekc.com/media/userfiles/file/89316546821.pdfIn PDF document text
    • https://ckfinder.pamlskovnik.cz/ckfinder/userfiles/files/bikirikuzo.pdfIn PDF document text
    • http://kcemsp.org/upload/editor/file/80333029159.pdfIn PDF document text
    • http://ngoinvest.com/uploads/ckfinder/files/98059209472.pdfIn PDF document text
    • http://achwvs.love-mrt.com/upload/files/77099585883.pdfIn PDF document text
    • https://htfcompact.com/wp-content/plugins/super-forms/uploads/php/files/ae7f9779b19acabdb018f99b90f1fdea/numusiwigituzulubodudivo.pdfIn PDF document text
    • http://www.ruben.pl/ckfinder/userfiles/files/zedobavi.pdfIn PDF document text
    • http://alompar.hu/uploads/content_files/files/16713449677.pdfIn PDF document text
    • http://csc-021.com/userfiles/file/20210909053704_a2h6ym.pdfIn PDF document text
    • http://www.look4job.gr/images/_user_na/file/geruwemomerolepijapi.pdfIn PDF document text
    • https://lexcyberia.com/userfiles/files/40472319631.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c631.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC631 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000de48.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE48 11196 bytes
SHA-256: 1dd040dc65695ec23429a37e55f8ddeb0900e8f07f9e4a39f18ed29f5007103b
font_02_sfnt_off0000f829.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF829 16452 bytes
SHA-256: a53f1c243a108f24b3f25a8edb1374b56915356abfe7b86c89922fe3c82e3613

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