Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce5e40aafaabc106…

MALICIOUS

PDF

84.8 KB Created: 2021-09-08 19:15:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: 86ffab9c986b8e47b59de034b48633f5 SHA-1: 15441b0f3b8e9fd68caff58ec7b158fdb476befc SHA-256: ce5e40aafaabc10660fd3243dd704ba81340773fed28da37cf82574f60b0ecd6
126 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous embedded URLs, with one heuristic specifically identifying it as a link farm on disposable hosting. This suggests the primary purpose is to redirect users to potentially malicious content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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
  • 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://getdol.com/page_data/file/tifakobiz.pdf In PDF document text
    • https://www.educationsexuelle-ecole.ch/ck/ckfinder/userfiles/files/76746895901.pdfIn PDF document text
    • https://yaslibakicisi.net/userfiles/file/89052015326.pdfIn PDF document text
    • https://educhina.mn/editor/files/pinituvetez.pdfIn PDF document text
    • http://mrtowing.ca/Lawyers/userfiles/file/mozexitalut.pdfIn PDF document text
    • http://inbond-cn.com/userfiles/file/59712071636.pdfIn PDF document text
    • http://htwy.com/upload/file/10375707986.pdfIn PDF document text
    • http://1careglobal.com/upload/files/kiraxoxijoreset.pdfIn PDF document text
    • http://fk-fudosan.1nino3.com/app/webroot/img/userfiles/files/81809294201.pdfIn PDF document text
    • http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161348d6a4921f---31721539129.pdfIn PDF document text
    • https://mgs-on-track.com/uploads/misc/files/6020344822.pdfIn PDF document text
    • http://sxhk365.com/uploads/file///kuguzotisodatuvokusamon.pdfIn PDF document text
    • https://ceccarmaramures.ro/userfiles/file/24795675314.pdfIn PDF document text
    • https://samowar.ch/upload/file/wataf.pdfIn PDF document text
    • https://iohrp.org/f_files/files/basetateruj.pdfIn PDF document text
    • http://doremimarlikinsaat.com/userfiles/file/woranewazufofozopibugefa.pdfIn PDF document text
    • https://ahl2005.com/ckfinder/userfiles/files/xeruxiluzokedafoduj.pdfIn PDF document text
    • http://gancza.pl/userfiles/file/91249331925.pdfIn PDF document text
    • http://heathrowairporttaxi.website/userfiles/file/8964024027.pdfIn PDF document text
    • http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/161385b74e8122---wotivewovamebu.pdfIn PDF document text
    • https://honkakuji.jp/honkakuji/images/ckfinder/files/nejexefowanuzudotul.pdfIn PDF document text
    • http://kuehllawpc.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/17014849995.pdfIn PDF document text
    • https://pmeds.us/userfiles/file/81284097910.pdfIn PDF document text
    • http://eubeer.vn/uploads/files/81612358866.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=michelangelo+buonarroti+biografia+pdfPDF 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_off0000e351.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE351 10964 bytes
SHA-256: 8ba389d7034544c5187ebef301aeeb13bc88cd7b62d7c1e6018297652ecc05eb
font_01_sfnt_off0000fc3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC3D 18648 bytes
SHA-256: 64c0ead46858261323539de13d7d2dfe940ebc89cda017634eed05ada87f6ae2
font_02_sfnt_off00012d4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12D4A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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