Malicious PDF — malware analysis report

Static analysis result for SHA-256 9066fcbd2874bf42…

MALICIOUS

PDF

83.4 KB Created: 2021-09-16 11:53:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: 5455953361edc24f1a1ad56ff4f1ee0f SHA-1: e2e1b64ea92f6a93886ac3359484379a9b2bf7b4 SHA-256: 9066fcbd2874bf42c99ef9b021c5d954fa95303732275133cc1616d93dd81095
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs pointing to external sites, many of which are hosted on compromised CMS platforms or disposable domains, indicating a link farm or phishing lure. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the PDF structure and URL patterns are consistent with phishing or malware distribution campaigns.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9911

Heuristics 6

  • 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
  • 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://allytemp.ru/uplcv?utm_term=reflection+of+light+from+curved+surface+spherical+mirror PDF link annotation
    • https://gites-les-bardots.com/userfiles/file/73540927208.pdfIn PDF document text
    • https://unaizahic.com/Files/files/39579552210.pdfIn PDF document text
    • http://universalgroupautos.com/files/others/takomefoj.pdfIn PDF document text
    • http://mylivediamondinventory.com/uploads/files/40031921547.pdfIn PDF document text
    • https://ckmusicdesign.nl/userfiles/file/pojazugideb.pdfIn PDF document text
    • http://arci-mp.fr/admin/File/60363174527.pdfIn PDF document text
    • https://almentispharma.com/ckfinder/userfiles/files/80830089213.pdfIn PDF document text
    • http://lindendirect.com/tempimg/file/rugovaloxed.pdfIn PDF document text
    • http://cungcapbaoduongcuanhatban.com/upload/files/77644571956.pdfIn PDF document text
    • http://nagyberki.hu/sites/default/files/fck_uploads/file/67113037472.pdfIn PDF document text
    • http://dainindo.com/Uploads/userfiles/files/47874848981.pdfIn PDF document text
    • http://unionasset.net/file_upload/spaw_upload/file/20210908181634.pdfIn PDF document text
    • http://xn--b1amishc2fb.xn--p1ai/ckfinder/userfiles/files/metegofopagunoxazubarugak.pdfIn PDF document text
    • https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f9d85f2434---17538918040.pdfIn PDF document text
    • https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613a2a5f4eb8c---wuvuwigotevotik.pdfIn PDF document text
    • http://cl-metalparts.com/d/files/matuwuwifidevigamibojim.pdfIn PDF document text
    • http://akiisushi.com/uploads/files/28798759175.pdfIn PDF document text
    • http://aquitaine.annuaire-regional.com/ckfinder/userfiles/files/57760514847.pdfIn PDF document text
    • https://eagle-aviation.com/userfiles/files/jovigokinezumip.pdfIn PDF document text
    • https://playerpress.com/ckfinder/userfiles/files/xitamulegemojujazuval.pdfIn PDF document text
    • http://we2meeting.com/ckfinder/userfiles/publics/files/lexiju.pdfIn PDF document text
    • http://lmtechsolution.com/userfiles/nivedesix.pdfIn PDF document text
    • http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/8krdqqb2kvsc82sndk5in9j577/44897178214.pdfIn PDF document text
    • http://emrc.ie/upload/imagecontent/file/ridagewepafepegorun.pdfIn PDF document text
    • http://zerosquareonline.com/file/8567125694.pdfIn PDF document text
    • https://tabularasa.lv/sites/tabularasa/uploads/documents/files/73278078956.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132009c27dc4---30650952980.pdfIn PDF document text
    • http://triple-a.co.th/ckfinder/userfiles/files/palubulujogajin.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_off0000e359.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE359 11276 bytes
SHA-256: 11e87396ac0a0fc2ba771f7dde9f530a4295f4ed5a0016c4cf5a25024507a16c
font_01_sfnt_off0000fd76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD76 16156 bytes
SHA-256: 9ff7818f055c20f09320a4009b9799f6127fb329e55d68303eed92e90a22fcd9
font_02_sfnt_off00012704.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12704 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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