Malicious PDF — malware analysis report

Static analysis result for SHA-256 006e7e4bba304f74…

MALICIOUS

PDF

84.4 KB Created: 2021-09-18 06:01:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 993c6cb40190d9ddafc91976d948642a SHA-1: cc60f61824eadf86be9679d4884a96f761a454df SHA-256: 006e7e4bba304f7438cd30148fdd919341862ffe1ca67c4da49b441fb2f3c7c2
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged by ML classifiers and ClamAV as malicious. The 'SE_CLICKFIX' heuristic indicates a social engineering attack that instructs users to execute commands directly, likely to bypass macro restrictions and download further payloads. Numerous URLs were extracted, many pointing to compromised websites or disposable hosting, suggesting a link farm designed to host or redirect to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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=cara+mengetahui+posisi+orang+lewat+hp+android PDF link annotation
    • https://sunarchegypt.com/userfiles/file/wibinogatumov.pdfIn PDF document text
    • http://agriturismolionsfarm.it/userfiles/files/jigepivuvifigux.pdfIn PDF document text
    • https://dakotaterritorydevelopment.com/ckfinder/userfiles/files/21841336093.pdfIn PDF document text
    • https://blugarden.eu/file/namadosutenapovoxa.pdfIn PDF document text
    • http://studioarchoggianiepartners.it/userfiles/files/kubugorexobokezifoked.pdfIn PDF document text
    • https://mamproducciones.es/wp-content/plugins/formcraft/file-upload/server/content/files/1612fe302253bc---91947007972.pdfIn PDF document text
    • http://mizuho-co.net/file/ck/files/20249855556.pdfIn PDF document text
    • https://perleyparish.org/wp-content/plugins/super-forms/uploads/php/files/2153e32ebf80c44f328d00a2b26c3f04/41851006288.pdfIn PDF document text
    • https://ritascreation.com/userfiles/file/93116203240.pdfIn PDF document text
    • http://arndt-fahrschule.de/userfiles/file/64625071106.pdfIn PDF document text
    • http://ksnjl.com/userfiles/files/17721796971.pdfIn PDF document text
    • https://livbiopharma.com/userfiles/file/tujoxivulototamopakifani.pdfIn PDF document text
    • http://chanakol.com/ckfinder/userfiles/files/peladeg.pdfIn PDF document text
    • http://rem-proekt.com/f/file/28322742675.pdfIn PDF document text
    • https://sanipro.ma/app/webroot/uploaderfiles/pasafuzolufepaseravota.pdfIn PDF document text
    • http://epoptavky.com/is/images/FCKeditor/File/velojosunu.pdfIn PDF document text
    • https://mimpishiodua.com/contents/files/34369509227.pdfIn PDF document text
    • https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a13f47e321---22819815726.pdfIn PDF document text
    • http://ombs.ru/uploads/files/87156089687.pdfIn PDF document text
    • https://popa.com.br/wp-content/plugins/super-forms/uploads/php/files/46a88a4197057fb1230e8c564e943f87/gililuvexazedagikoxopok.pdfIn PDF document text
    • http://camelliafb.com/uploads/files/202109160505055994.pdfIn PDF document text
    • http://indecomavo.pl/userimg/inc/74209409129.pdfIn PDF document text
    • http://architettobotteonpierpaolostudioabacus.it/userfiles/files/xavukoperetajizukabezegaf.pdfIn PDF document text
    • https://huuphongplastic.vn/uploads/images/files/jilowugake.pdfIn PDF document text
    • https://zemiigori.com/uploads/file/lumibaket.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_off0000e42a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE42A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000fc41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC41 11056 bytes
SHA-256: 007adb92b56fbf9b1061199b6dad325e1eff29fc6f4c754e50ee827d352d6327
font_02_sfnt_off0001159e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1159E 16912 bytes
SHA-256: 8fcabcb0a9c52a1d58b20eebc802b130a0c68493052040393ac21d56e9e33e96

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