Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ea02c1bfb290301…

MALICIOUS

PDF

78.7 KB Created: 2021-09-23 04:09:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: 61c12278814d02ea3661ed06c29fd207 SHA-1: 8027a14e2685823a8734c2278474d50cad086307 SHA-256: 9ea02c1bfb290301b7adb4eedd1c4f1c2d71b6d5c3cc5c8e58ca4a8032b23c2a
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs that point to disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URIs and the overall structure indicate an attempt to trick users into downloading further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9953

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://philabc.ru/uplcv?utm_term=cat+goes+fishing+download+free+android PDF link annotation
    • http://uniquehotelsolutions.com/files/others/milibivilorigetamebeg.pdfIn PDF document text
    • http://rassadaspb.com/new/files/file/gavalozufomavukujerudob.pdfIn PDF document text
    • http://avandcie-energy.fr/ckfinder/userfiles/files/59228005394.pdfIn PDF document text
    • http://cascinamana.it/userfiles/file/29927675971.pdfIn PDF document text
    • http://telecycling.org/files/file/zisisalojijizuxawi.pdfIn PDF document text
    • http://bassonconsulting.mc/userfiles/file/noxidepojujupimezenu.pdfIn PDF document text
    • http://vektor-bezpeki.com/userfiles/files/58567331452.pdfIn PDF document text
    • http://ninda.vn/userfiles/files/45602199420.pdfIn PDF document text
    • http://aminotp.com/upload/files/98001025714.pdfIn PDF document text
    • http://mega.kz/media/upload/files/44268768962.pdfIn PDF document text
    • https://jurad.eu/files/file/dokumofusazatovu.pdfIn PDF document text
    • https://inprovitcaribe.com/ckfinder/userfiles/files/30496866564.pdfIn PDF document text
    • http://www.ville-dammarie.com/ckfinder/userfiles/files/56546268575.pdfIn PDF document text
    • http://jowinbio.com/upload/files/202109031401553225.pdfIn PDF document text
    • https://petpetmates.com/files/editor/file/77988443970.pdfIn PDF document text
    • http://spostojow.pl/userfiles/file/jivodivefiritogodol.pdfIn PDF document text
    • http://moutierrozeille.fr/userfiles/file/55240788795.pdfIn PDF document text
    • http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/16138267a044d2---52261025461.pdfIn PDF document text
    • http://marine-inox.com/i/File/98178417060.pdfIn PDF document text
    • https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/28604c0f16f02aa3e94809b4998a9d58/nulideli.pdfIn PDF document text
    • http://donghotam.com/luutru/files/juxedur.pdfIn PDF document text
    • http://domplus.su/userfiles/files/89391338412.pdfIn PDF document text
    • https://alusol-kw.com/ckfinder/userfiles/files/zejixogenezofusamer.pdfIn PDF document text
    • https://securincasso-online.nl/ckfinder/userfiles/files/51708304506.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_off0000d09a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD09A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e8b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8B1 10748 bytes
SHA-256: f1901e2c34aeb9eaeaedeef96f05fe4c3207d3c9a17cc17b087889be977ad39c
font_02_sfnt_off0001013b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1013B 17248 bytes
SHA-256: 6bdb338c7e8bd4b2c76f648d138bed6e47f0c7e55d151a35df3dd31f169a3fbe

Open this report in the interactive analyzer, or submit your own file for analysis.