Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bed997b051390bf…

MALICIOUS

PDF

180.8 KB Created: 2021-06-27 21:09:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-08-25
MD5: dd48b73d7771b69de1f22015e753f3bb SHA-1: f373b63570f2641cd1307a4262af48ab24e6dfca SHA-256: 2bed997b051390bfee51758e77d28721710a4a27efaed24b5e8783c325f97da8
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a phishing or malware distribution attempt. It functions as a link farm, containing numerous URLs that point to compromised websites and potentially disposable hosting. The primary goal appears to be directing users to external, untrusted resources, likely for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8457

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://cructi.ru/uplcv?utm_term=shin+chan+in+tamil+new+episodes+2019+funny PDF link annotation
    • https://clickkedai.com/userfiles/file/67090458156.pdfIn PDF document text
    • https://nmcs.ca/userfiles/files/38809008704.pdfIn PDF document text
    • https://burgas-remonti.com/userfiles/file/bafimamuminexamik.pdfIn PDF document text
    • https://media-get.ru/userfiles/files/puxinofesomaxasobipo.pdfIn PDF document text
    • http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160765c5e7291d---mirusoz.pdfIn PDF document text
    • http://beloit1962.com/clients/8/83/8368a4f838dea3176655029ae9e337da/File/51346314726.pdfIn PDF document text
    • https://www.getfitcrew.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b76b73990e9---58242201072.pdfIn PDF document text
    • http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/10cf62b41a293bb4f7d3a372744fb1a9/zuzewigopukugejif.pdfIn PDF document text
    • https://actorconseil.com/files/file/bezob.pdfIn PDF document text
    • https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/ioa1j3i092fbv423soju7v4umc/baruzadexutelexuxusawob.pdfIn PDF document text
    • https://lapalettedesarts.fr/gestion/file/42481599669.pdfIn PDF document text
    • https://drmarlenebothma.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606c65ba0f7cc---kizekefep.pdfIn PDF document text
    • http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/1606cebbd674fd---baxexabejezerelike.pdfIn PDF document text
    • https://www.fmworks.com.tr/wp-content/plugins/super-forms/uploads/php/files/ukiq3141snepu91ou9ir1r5ntb/sapux.pdfIn PDF document text
    • https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/160cf2306e5cc7---78398635993.pdfIn PDF document text
    • https://campermagazine.tv/public/file/9003378265.pdfIn PDF document text
    • https://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/44bc9q255gth53kghpb9sb8fut/vetevi.pdfIn PDF document text
    • http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/422beb9316da004cb574aa623c24de01/nogajiwipamudi.pdfIn PDF document text
    • https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/1609348ade30f2---78775406111.pdfIn PDF document text
    • http://growlink.biz/userfiles/file/dojafujudonok.pdfIn PDF document text
    • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/160c1d9cae212d---rigogovosikazizogopubub.pdfIn PDF document text
    • https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/he0bt3mo0j3gdfd6751ps5nt6o/6553934067.pdfIn PDF document text
    • http://endustriyelkiralama.com/wp-content/plugins/super-forms/uploads/php/files/flpsl9n7bgt32bnp2b16sdp1r2/31841732103.pdfIn PDF document text
    • https://funkydrop.shop/wp-content/plugins/super-forms/uploads/php/files/2e53b0017269df161a4fa0f9c28f3c50/90204820126.pdfIn PDF document text
    • http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609836a965b3b---84412224900.pdfIn PDF document text
    • https://ivanamihic.com//files/7517377651.pdfIn PDF document text
    • http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c14d5c9010---nisegutilaputerafakolobir.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001a2c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A2C4 11624 bytes
SHA-256: e2fe5cf930353fb1073b94eaab130a4701e594d33653d17b4fee9a99db7577f9
font_01_sfnt_off0001be53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BE53 23088 bytes
SHA-256: 44011afe2abd32d09aa364c0285e10a2ce772aed901f32427042227713fc8835
font_02_sfnt_off0001f660.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1F660 57556 bytes
SHA-256: 33a3973aede90988ab26e42ad4d4542b28d69224c087e05425d39ecc818d78ed
font_03_sfnt_off0002928a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2928A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_04_sfnt_off0002aa9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AA9B 16740 bytes
SHA-256: a62f46d68671784eeaf94d6433eb3980cce5980484d9dc77b3055278d6711449

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