Malicious PDF — malware analysis report

Static analysis result for SHA-256 062a6d8b82d657a2…

MALICIOUS

PDF

85.9 KB Created: 2021-06-29 15:17:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-22
MD5: d1a3945233510aad787f6ad0ebea4e45 SHA-1: e55a5b9e8cc5ac27d213afd7ed02e077a0f4f971 SHA-256: 062a6d8b82d657a2b4452bc2aa8be3b016bc2d78bac171182449197a3a73de22
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable hosting, indicating a link farm designed to redirect users. The ClamAV detection as 'Pdf.Phishing.Trojan' strongly suggests a malicious intent, likely phishing or malware distribution through these links. No scripts were extracted, but the structure and URL patterns are indicative of a malicious PDF.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3778

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://irlanc.ru/uplcv?utm_term=best+toad+in+the+hole+recipe+for+2 PDF link annotation
    • https://www.dartmusicfestival.co.uk/wp-content/plugins/super-forms/uploads/php/files/ae265bfa71c496dba3a15bb62c114e8c/dosewejeb.pdfIn PDF document text
    • https://www.fecomerciomg.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/160aba04e623a7---vifas.pdfIn PDF document text
    • https://envomask.com/wp-content/plugins/super-forms/uploads/php/files/4226ba8c7209ee2c8e2d741b6f3282ec/9187297689.pdfIn PDF document text
    • https://maggies-handmade.com/UserFiles/files/buvadapuk.pdfIn PDF document text
    • http://goksirkrupskimlyn.pl/img/upload/files/70737559699.pdfIn PDF document text
    • https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/f5a36f0588ca92008dd0784a8222dbcc/fodipitidu.pdfIn PDF document text
    • http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d8a6e038d4a---490062554.pdfIn PDF document text
    • https://goldenparadisestsimons.com/wp-content/plugins/super-forms/uploads/php/files/7e273cfbee3eda5ade46d14364f74063/mofaxugejugotuzuliji.pdfIn PDF document text
    • https://srp-galabau-rostock.de/wp-content/plugins/super-forms/uploads/php/files/6p1n822drb8cqo4mcqmnb9jan3/23230576261.pdfIn PDF document text
    • http://nature-revive.org/files/file/28419939898.pdfIn PDF document text
    • http://southportrubbish.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073c57e8da63---bavoredomozudom.pdfIn PDF document text
    • https://benchmarktransitions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d81eec41a06---xikomituvilobagonunisumo.pdfIn PDF document text
    • http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b5276396400---95520848186.pdfIn PDF document text
    • https://www.bistro-e.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f34e882911---waronavisivigeta.pdfIn PDF document text
    • http://tulsamemorialclassof71.com/clients/84987/File/baziribesizodutenufup.pdfIn PDF document text
    • http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607195dea6fe1---gatiwabakomik.pdfIn PDF document text
    • http://perfectthesale.com/wp-content/plugins/formcraft/file-upload/server/content/files/160786554e5a85---97966760301.pdfIn PDF document text
    • https://cwlighting.com/wp-content/plugins/super-forms/uploads/php/files/ee35b5324b2960ba146505ad32bed440/salimavuwowexirabowat.pdfIn PDF document text
    • http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160beb63dd66ec---biwadomumopifulanarozid.pdfIn PDF document text
    • https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1609bf409ac6a6---36474192942.pdfIn PDF document text
    • http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b30bf963c55---32461854412.pdfIn PDF document text
    • http://novussiteyonetimi.com/uploads/file/wenirupot.pdfIn PDF document text
    • http://www.zopfitravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bfe8abc0998---rinatap.pdfIn PDF document text
    • http://ash-graphy.com/userfiles/file/sadizi.pdfIn PDF document text
    • 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_off00010765.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10765 17488 bytes
SHA-256: e9509b889a0236e7594db717eab68650831d360d46c3699eaf3b088f49f566fd
font_01_sfnt_off000135ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x135AD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1