Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e6bca8a2fe33dde…

MALICIOUS

PDF

94.0 KB Created: 2021-07-03 23:21:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: a49ab001efbc1a2c8ea3349d1d02d206 SHA-1: 8a425bc1a625b1a00d9322c7483142ecfa077206 SHA-256: 0e6bca8a2fe33ddeba0cead1393fadc2dce94e6e670214542a16b42a5ae5d9f3
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous embedded URLs pointing to compromised websites, many of which are hosted on disposable domains or use WordPress upload vulnerabilities. The primary function appears to be redirecting users to malicious sites, likely for phishing or to download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9820

Heuristics 6

  • 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
  • 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 https://oniceh.ru/uplcv?utm_term=world+thinking+day+quotes PDF link annotation
    • https://premiumvipbusiness.com/wp-content/plugins/super-forms/uploads/php/files/ef7946dfa0c6025271e9cfb68e3e71d3/27817598312.pdfIn PDF document text
    • https://rugsinc.in/UserFiles/files/bilisagixevinagibimep.pdfIn PDF document text
    • http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e8d52475f8---kamobelevo.pdfIn PDF document text
    • http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16080a10557da2---kadizo.pdfIn PDF document text
    • https://calmoinc.com/upload/editor/file/64122193352.pdfIn PDF document text
    • https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b63f15ac0d7---47106169297.pdfIn PDF document text
    • http://degrossier.nl/uploads/file/29505399706.pdfIn PDF document text
    • https://www.temsilcisitesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5f9d935adb---5161100490.pdfIn PDF document text
    • http://rubensova16.cz/files/file/43162555094.pdfIn PDF document text
    • https://profbuhotchet.ru/wp-content/plugins/super-forms/uploads/php/files/4d57e1c53cdbfabdbbf355117a541f0d/14033358724.pdfIn PDF document text
    • http://princeworldwide.com/multimedia/userfiles/file/suxojexijijuxuzowiso.pdfIn PDF document text
    • http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f34fce16d8---gigamemuxiluvizawegiz.pdfIn PDF document text
    • https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/jj1obefefk3h5bjthcb0sstbfe/janilome.pdfIn PDF document text
    • https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160746e45c6215---32287291286.pdfIn PDF document text
    • https://hijaulumut.com/contents//files/fotudaxigikuto.pdfIn PDF document text
    • http://decom.pro/admin/ckfinder/userfiles/files/foratumitivevaj.pdfIn PDF document text
    • http://www.assignproject.com/wp-content/plugins/formcraft/file-upload/server/content/files/16097390d08b10---75874966287.pdfIn PDF document text
    • https://cgeminfos.ma/upload/file/77091708141.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a81483bd4f7---domanemuti.pdfIn PDF document text
    • https://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/smrir6990b9gh4nbdpn1c3pgnq/vebogepofodukanilofoxiwi.pdfIn PDF document text
    • http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/160c2a63a9cac1---4235403273.pdfIn PDF document text
    • http://praguetransfer.com/files/file/lizigasurizenusa.pdfIn PDF document text
    • http://hesexpo.com/img/editor/image/file/popoju.pdfIn PDF document text
    • https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160a8ff489ba94---83631375949.pdfIn PDF document text
    • http://asesorialuishervas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d9336709c9e---sibudomiwabuxufuvat.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609644963620a---76629026659.pdfIn PDF document text
    • 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_off00010e8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E8C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off000126a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x126A3 10972 bytes
SHA-256: 1de5557bbe04ddfd1beaef66e1a2a602932df649f802d5cd3c83506a78372dd0
font_02_sfnt_off00013f8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13F8A 17128 bytes
SHA-256: f29c3b52dae84202409f7d42ae7a94c7ae8b42b119b2f7499a23613280aa07d4