Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee29a471bcb617ec…

MALICIOUS

PDF

84.7 KB Created: 2021-06-25 12:58:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 01a0b6bbf43e707b8c3401a63ff048d6 SHA-1: 4a843f3eb7f5cb36e5c1b4672a5fdbd65172d08a SHA-256: ee29a471bcb617ec794f772e2b68cc8cf4c6aaea1764786856e203053ad4523e
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains numerous embedded URLs, many of which point to compromised CMS upload directories or disposable hosting, indicating a link farm designed to redirect users to malicious content. ClamAV detection as 'Pdf.Phishing.Trojan' and ML classification further support its malicious nature. The primary function appears to be directing users to potentially harmful external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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 http://travelshops.pl/userfiles/file/32610158088.pdf
    • http://ptairsupply.com/userfiles/file/dewemaj.pdf
    • https://playgametoday.ru/wp-content/plugins/super-forms/uploads/php/files/0eef73dc136c254072ce65d7902f1c8e/49589346379.pdf
    • https://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/defe2cuh47t1i5ou3o6lo4nk4p/benododuxipatuzivonulizom.pdf
    • http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae99852e3e0---jabikejetalufakiwepofasaj.pdf
    • https://proxus.nl/file/49484421896.pdf
    • http://aaz.sk/editor_uploads/files/risebevufokifonavore.pdf
    • https://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160707676c4214---36432555501.pdf
    • http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607579bc5151d---zaxorusixupi.pdf
    • http://lawngo.net/fckfiles/jifololigesojuxetepix.pdf
    • http://awkontrakt.pl/ckfinder/userfiles/files/kuzefevitirudolibotebaleg.pdf
    • https://studio45.live/wp-content/plugins/super-forms/uploads/php/files/9ivo6nbhtrgo8defa03501mruo/ditana.pdf
    • https://www.rowtheerne.com/wp-content/plugins/super-forms/uploads/php/files/969e449b467bc2d1d02d370959514877/50992420630.pdf
    • http://thinhhoanggia.vn/Images_upload/files/83035963821.pdf
    • https://www.horisunmauritius.com/wp-content/plugins/super-forms/uploads/php/files/393cc9faae4dd2801bd406b77fa3a59e/27284125179.pdf
    • http://gz-theoutfit.com/UploadFiles/FCKeditor/20210603140329.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=governance+and+public+policy+mcqs+pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e29c.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE29C 16792 bytes
font_01_sfnt_off0000faae.bin
a575726966a314c2fdda59004dd2b41718133662efd8a8f33d8591dff1ff593f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFAAE 18012 bytes
font_02_sfnt_off00012a5f.bin
c3f39a0257be05fee9e94fc87ea474b6e5d126f5608362c3ef0c9f661c12ab39		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12A5F 11288 bytes

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