Malicious PDF — malware analysis report

Static analysis result for SHA-256 a29b6ddca46a62d3…

MALICIOUS

PDF

59.5 KB Created: 2021-09-07 14:14:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: dd9297c6d794006f00c64e06c7a009dc SHA-1: 822a7175b397cf3aeb1a4190008c4ecc26767880 SHA-256: a29b6ddca46a62d361573c5326f1ad1889f12e30e0207d1b625c59d30b6550ea
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is identified as malicious by ClamAV, indicating it's a Pdf.Phishing.Trojan. Static analysis reveals numerous URLs embedded within the document, many pointing to compromised WordPress sites used for hosting PDF files. This suggests the document functions as a link farm, likely intended to redirect users to phishing sites or download further malicious content.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4143

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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
  • 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://allytemp.ru/uplcv?utm_term=cracking+the+genesis+code+pdf PDF link annotation
    • http://www.champcaregivers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160fd1f503bd24---domatelosawetubamoxaz.pdfIn PDF document text
    • https://www.hintonassociates.com/wp-content/plugins/super-forms/uploads/php/files/8aa07b11bc886c5a405928583fdf3870/gowobog.pdfIn PDF document text
    • https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/7f65a9a5a873b2b61999e74c74dae35a/sizale.pdfIn PDF document text
    • https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/2ca1718c914f8c97fcd3e199b855a4d6/gugexelizutax.pdfIn PDF document text
    • http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160fd9f4706fc0---70792922331.pdfIn PDF document text
    • https://nestuby.com/userfiles/file/tujopavivefupasonexo.pdfIn PDF document text
    • http://hometextiles-consultant.com/ckfinder/userfiles/files/25195754247.pdfIn PDF document text
    • https://wlao.on.ca/wp-content/plugins/super-forms/uploads/php/files/77d86de16c83daae78a5ab43107f1375/korodileli.pdfIn PDF document text
    • http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/s1scoblnspsilmkucugqc6kp05/71428244876.pdfIn PDF document text
    • https://incoyun.com/calisma2/files/uploads/54731673956.pdfIn PDF document text
    • https://thieumaunao.vn/workspace/develop/uploads/ck_upload/files/48746075431.pdfIn PDF document text
    • http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16089c24e90bda---nuvatelasixezubodevono.pdfIn PDF document text
    • https://bibliothequeanglaise.org/upload/files/xenitajogawimodebilo.pdfIn PDF document text
    • http://jakpaisanestate.com/images/upload/files/latat.pdfIn PDF document text
    • https://estidevelopers.com/wp-content/plugins/super-forms/uploads/php/files/d0349c344aa27d668eb1ee2158b562a4/ratidivegigifun.pdfIn PDF document text
    • http://goteneplast.se/files/images/file/83040967227.pdfIn PDF document text
    • http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/1609219e8988f9---xulevolovewotos.pdfIn PDF document text
    • https://tonmathunglan.vn/upload/files/wijavagerigovux.pdfIn PDF document text
    • http://aal.tw/uploads/htmlupload/files/voluneverewoladabudot.pdfIn PDF document text
    • http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b83de6873bf---vutapamavutagowutopi.pdfIn PDF document text
    • https://www.sesc.com.ua/wp-content/plugins/super-forms/uploads/php/files/jhs7s34e13ef9tc7p1071p0up2/9314733540.pdfIn PDF document text
    • https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9a7f06ca6---94075167388.pdfIn PDF document text
    • http://dianacb.cz/userfiles/file/bexidusijax.pdfIn PDF document text
    • https://bhiringisamsankalimandir.org/userfiles/file/36219413693.pdfIn PDF document text
    • https://www.ccps.mx/wp-content/plugins/super-forms/uploads/php/files/11bd55d546ade924426c3870f85ba5ab/20860931115.pdfIn PDF document text
    • https://mimpidia.com/contents/files/1598437276.pdfIn PDF document text
    • https://buka.ru/sadm_files/kizuduzabevotaposijepo.pdfIn PDF document text