Malicious PDF — malware analysis report

Static analysis result for SHA-256 a93ad67ff0711536…

MALICIOUS

PDF

68.9 KB Created: 2021-10-03 18:19:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: d1f6d2e3550cb4512e4b4298012b7cad SHA-1: a3152db2f766d0dc9dcfaad5028a4e7b71fca954 SHA-256: a93ad67ff0711536f61897968b6e4b15a701aae7a8113bfe927c57dac5d24c86
146 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 1 text block(s), carries a click-outward action, and is only 68 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/16150604f3c2a6---genibojagolonuzuzado.pdf In PDF document text
    • https://dortmundpools.com/contents/files/45849638150.pdfIn PDF document text
    • http://cctechlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/debaxufigudutitatunora.pdfIn PDF document text
    • http://www.sname.org.tw/sname/ckfinder/userfiles/files/67131425605.pdfIn PDF document text
    • https://quangcaowebsitecomvn.xemlaco.com/uploads/files/nowizuzevitutifaxisaro.pdfIn PDF document text
    • http://portaldeaquidauana.com.br/ckfinder/userfiles/files/wafizopilebeda.pdfIn PDF document text
    • http://dancephoto.ru/userfiles/files/bonivikivikomof.pdfIn PDF document text
    • http://yansyuan.com/UserFiles/images/files/58252556555.pdfIn PDF document text
    • http://logistra.fr/ressource/site-image/files/depisedonasubunikejime.pdfIn PDF document text
    • http://metalltechnik-kutschi.at/84544651078.pdfIn PDF document text
    • http://zimmerei-possert.at/fuwemetesepedasapodido.pdfIn PDF document text
    • http://dubossari.es-pmr.com/constructor/dubossari/ckfinder/userfiles/files/sasowuvoje.pdfIn PDF document text
    • https://mimpishio2.com/contents/files/56815387687.pdfIn PDF document text
    • http://www.itidharamshala.in/images/uploads/files/29587179207.pdfIn PDF document text
    • http://autoservizimensi.it/images/fck/file/58248150935.pdfIn PDF document text
    • http://www.orarestauratorisaf.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613d01e84f7a1---67188846583.pdfIn PDF document text
    • http://ch-bovi.com/upload/files/10470831733.pdfIn PDF document text
    • https://jamuiboe.com/webroot/upload_media/sabigu.pdfIn PDF document text
    • http://espacioschillout.es/images/admin/file/ziwukoweke.pdfIn PDF document text
    • http://www.gleason.com.au/application/third_party/ckfinder/userfiles/files/66188133830.pdfIn PDF document text
    • http://njuhome.pl/ckfinder/userfiles/files/88677465230.pdfIn PDF document text
    • http://fueandhair.com/userfiles/files/97513916706.pdfIn PDF document text
    • http://ipayon.com/root/FCKeditor/file/92331976621.pdfIn PDF document text
    • http://1carl.com/userfiles/file/javotirar.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=vowels+and+consonants+in+tamilPDF link annotation
    • 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_off0000b1ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB1EC 14316 bytes
SHA-256: bb99df81f48299ef1b43fb90b14c2dba76e5ba72747fbddf3c71848a9f78efae
font_01_sfnt_off0000d592.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD592 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000eda9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDA9 10484 bytes
SHA-256: 78661476001fb0849cb1a73fb8dca38a0936f4427d4ca7183b04840e6bb361ff