Malicious PDF — malware analysis report

Static analysis result for SHA-256 482a6d118b7cffd3…

MALICIOUS

PDF

87.4 KB Created: 2021-08-13 15:26:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 68f28666bcf0ec48f7a2bfa86abfda30 SHA-1: 4a4b816ad3e18c5e3b9ab0107eaff4d69e16d848 SHA-256: 482a6d118b7cffd3a759775a80acd8a8b858bcf89651a74d8b683952699ded3b
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document contains numerous links, many pointing to compromised WordPress sites, and one URL specifically mentions 'gta san andreas hack download', suggesting a lure for users seeking game cheats. The presence of these links and the overall structure indicate the document is designed to redirect users to potentially malicious content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9962

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://huntic.ru/uplcv?utm_term=gta+san+andreas+hack+download PDF link annotation
    • https://lightupalife.org.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160e54d05c1916---39690481180.pdfIn PDF document text
    • http://stuarteisbrucklaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/68273641981.pdfIn PDF document text
    • http://perlawarmii.pl/userfiles/file/gezenetevifofogikamiz.pdfIn PDF document text
    • https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160ce5cce4be33---zapanepuxinasinapu.pdfIn PDF document text
    • http://whuntex.ru/userfiles/file/sujejamomadoka.pdfIn PDF document text
    • https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/sr4cligmj83sc12g1c1vkipgs7/93653766264.pdfIn PDF document text
    • http://chiengthai.com/file_media/file_image/file/84056786012.pdfIn PDF document text
    • http://steps4cancer.org/clients/a/a7/a78c374070a178914b502abaf3db82b8/File/monazaregizipunuti.pdfIn PDF document text
    • http://uniroll.pl/user_images/file/13313352987.pdfIn PDF document text
    • http://thompsonhigh1980.com/clients/4/48/48b9e10b24f1ac3c627dfd5bb8c45987/File/kosizumepixilobudegu.pdfIn PDF document text
    • http://penzion-u-zamku.cz/files/file/rojomevimokirekoj.pdfIn PDF document text
    • http://perilatomsk.ru/ckfinder/userfiles/files/26943673243.pdfIn PDF document text
    • http://www.dj-csnl.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16075a6ac68762---17446486446.pdfIn PDF document text
    • https://feriaesotericadeatocha.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b04bf3ac79---tomapoxumujijujixukixub.pdfIn PDF document text
    • http://dichvu12h.net/userfiles/file/98986227727.pdfIn PDF document text
    • http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087466ceb7d2---66235417826.pdfIn PDF document text
    • http://uptownchantilly.com/uploads/files/denotubobifepafilukif.pdfIn PDF document text
    • http://steclotildehorton.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160c8e19cf3bd0---55577063151.pdfIn PDF document text
    • http://casaperferiesantamariagoretti.com/writable/public/userfiles/file/vosowonatazotetug.pdfIn PDF document text
    • https://atcotourismtravel.com/userfiles/file/vowofobedapikitire.pdfIn PDF document text
    • http://waelfawzy.com/userfiles/file/vivonezuloxifuxebo.pdfIn PDF document text
    • http://55thocscompany.com/clients/62662/File/baligamibimimoni.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e943.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE943 17512 bytes
SHA-256: 2c9deedbb6bd5eef38fa4fb82a0acbb3008aebc94cda0da47a2c1a04d2c70485
font_01_sfnt_off000116db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116DB 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012ef2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12EF2 10592 bytes
SHA-256: b4342087ffb65617be447961f359b15b5a57c279116599e78870d0775bd0c54e
font_03_sfnt_off0001472a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1472A 1744 bytes
SHA-256: 16c61f9d967f3fece9b6a22a95496a8a81954608bb3421ed03468d991ac109f9