Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d3d5e5ed7369bed…

MALICIOUS

PDF

79.0 KB Created: 2021-10-07 00:03:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: b63eaedee77024bc11f43b9e64f79519 SHA-1: 3bbcb3b59a1522a5a1e987720de6ae79920974b3 SHA-256: 2d3d5e5ed7369bed8de82ce80c91042b587033556ce250a3675cfbb8e9c69397
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links, many of which point to disposable hosting or compromised CMS upload directories, indicating a link farm designed to redirect users. ClamAV detection as 'Pdf.Phishing.Trojan' further supports its malicious nature. The file's structure and link distribution suggest it's part of a phishing campaign, likely delivered as an attachment.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4210

Heuristics 5

  • 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
  • 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://epicridesnepal.com/files/rofeserekijosas.pdf In PDF document text
    • https://rubfila.in/files/file/tiruxe.pdfIn PDF document text
    • http://www.communityheroesproject.org/wp-content/plugins/formcraft/file-upload/server/content/files/1615e0e89d015f---57126214868.pdfIn PDF document text
    • https://snapstudios.ca/userfiles/file/11539698989.pdfIn PDF document text
    • http://ankaraeksioglu.com/resimler/files/sogijusofovomefupas.pdfIn PDF document text
    • http://iwayman.com/uploadfiles/file/2109240743227889978y26mv.pdfIn PDF document text
    • https://isabellepieman.com/userfiles/file/vuxojisoleku.pdfIn PDF document text
    • http://orchid-daikanyama.com/userfiles/file/ferokuw.pdfIn PDF document text
    • http://bjzjygj.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/tefabema.pdfIn PDF document text
    • http://sh8ke.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614bfb8977314---2626020271.pdfIn PDF document text
    • http://feuerwehr-mittenwalde.de/mediathek/files/gunorutavafutavevinaraku.pdfIn PDF document text
    • https://forumsevens.com/images/file/12190217867.pdfIn PDF document text
    • http://tech-sub.com/userfiles/file/81645841349.pdfIn PDF document text
    • http://chaputlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/67942690422.pdfIn PDF document text
    • https://thefertilizerequipment.com/d/files/loluzefegituzibamilex.pdfIn PDF document text
    • http://teplorium.su/userfiles/file/62546004607.pdfIn PDF document text
    • http://laboratoriodiprogettazione-ve.it/userfiles/files/91381739840.pdfIn PDF document text
    • http://urbariatprasice.sk/upload/file/tenifutirubasif.pdfIn PDF document text
    • http://inggeo.eu/userfiles/files/98008903891.pdfIn PDF document text
    • http://abnig.friendship-match.com/upload/files/19803271063.pdfIn PDF document text
    • http://tmkb.org.tr/ckfinder/userfiles/files/welasezuwabaloxuvatikekiw.pdfIn PDF document text
    • http://www.everhouse.lt/wp-content/plugins/formcraft/file-upload/server/content/files/1614b29254fe72---tivel.pdfIn PDF document text
    • http://giahung.tincorner.com/uploads/files/75767790494.pdfIn PDF document text
    • http://phongkhamthienhoa.vn/images/files/xaposulagafoxun.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=accounting+equation+problems+and+solutionsPDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e87e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE87E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00010090.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10090 17952 bytes
SHA-256: fb586fc29829fb03adf6fcc781cd6d7fe99122142fcae276bb3ae3faee82a9b3

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