Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0d2d2e6c1d44e0f…

MALICIOUS

PDF

82.3 KB Created: 2021-09-18 17:02:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: ec39ef6b694f77db082a0e029ac46405 SHA-1: 68bc9919c4eaa983a4c1927c7908f36db4fde67b SHA-256: d0d2d2e6c1d44e0f2bbc3f902b91b872ea6f82bc3eaa25d033e9e4b2462e3e98
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1539 Steal or Forge Credentials

This PDF file was detected as malicious by ClamAV and an ML classifier, exhibiting characteristics of a credential harvesting lure. The document's structure suggests it is part of a link farm, with many URLs pointing to potentially compromised CMS upload directories or disposable hosting. The primary goal appears to be tricking the user into providing sensitive information through a fake MFA or one-time code prompt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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://quangcaosms.org/media/ftp/file/23264251061.pdf In PDF document text
    • https://gamletaarnhuset.no/wp-content/plugins/formcraft/file-upload/server/content/files/16145251b8e806---tukosowetovofutor.pdfIn PDF document text
    • https://goactive.hu/wp-content/plugins/super-forms/uploads/php/files/ba3813914010f4bfd8c9f856d5082e79/poludozar.pdfIn PDF document text
    • http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ebac2d4c67---falupajirogadodizew.pdfIn PDF document text
    • http://elliptical-trainers.ru/ckfinder/userfiles/files/talusepuzifok.pdfIn PDF document text
    • https://daks-96.com/f/uploads/files/20772088626.pdfIn PDF document text
    • https://pollackmihalyiskola.hu/ckfinder/userfiles/files/41667914011.pdfIn PDF document text
    • http://aleshashop.net/uploaded_files/userfiles/files/gopebino.pdfIn PDF document text
    • http://styropapex.pl/userfiles/file/94374408991.pdfIn PDF document text
    • http://truhlarstvi-strakonice.cz/files/file/76068142927.pdfIn PDF document text
    • http://xpeedon.net/userfiles/file/20210912150307.pdfIn PDF document text
    • https://discovercefalu.it/_data/images/file/32263194940.pdfIn PDF document text
    • https://editionsitaliques.com/userfiles/file/xelujezokubuzefojuda.pdfIn PDF document text
    • http://digivideos.net/ckfinder/userfiles/files/pugisufogokibapim.pdfIn PDF document text
    • http://lovesushiscv.com/uploads/files/15141676227.pdfIn PDF document text
    • https://gres-k.cat/userfiles/file/82097166744.pdfIn PDF document text
    • http://vnndt.com/Images_upload/files/38760370621.pdfIn PDF document text
    • https://infoenergie-loire.org/userfiles/file/84835566100.pdfIn PDF document text
    • http://k9careclinic.in/ckeditor/ckfinder/userfiles/files/pusipojosewekirowom.pdfIn PDF document text
    • http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/16141997714ece---46862523476.pdfIn PDF document text
    • http://przystaneknida.pl/data/aktualnosci_imgs/file/46805921942.pdfIn PDF document text
    • https://bdprescription.com/ci/userfiles/files/71093761484.pdfIn PDF document text
    • http://z-sinpro.com/upload/files/63101916740.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=free+movie+sites+androidPDF 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_off0000de7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE7A 10408 bytes
SHA-256: 8e799cc04bb59d6f2d964945eddcc7ad007b8bf333ece2a937c65389d132591e
font_01_sfnt_off0000f60d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF60D 17936 bytes
SHA-256: 9137a08f377b4bd47fcf5c2bfaeec62b4f6f67f87d36a33c965d9bf108e8adca
font_02_sfnt_off000123fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x123FD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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