Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d9086484797f49e…

MALICIOUS

PDF

94.5 KB Created: 2021-08-18 07:28:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: df80f7db64efac0c2452b7ccf73b1131 SHA-1: b44a14b359450184d22fabedd49f4afdfd22ba92 SHA-256: 0d9086484797f49e2b872cf99785023e750b716cb4fc2943f09f652d0bce6f95
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of links, many pointing to compromised WordPress upload directories, indicating a link farm designed to host or redirect to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and URL patterns are indicative of a malicious document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9897

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://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/1606d2fb41f140---47116229900.pdf In PDF document text
    • http://vmkmsz.hu/userfiles/file/21853112658.pdfIn PDF document text
    • http://www.molinoag.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c64d13a7661---70341475746.pdfIn PDF document text
    • https://adikkedua.com/contents//files/rudisusawufogupekoguw.pdfIn PDF document text
    • https://cupanghitam.com/contents//files/333706222.pdfIn PDF document text
    • http://automotiveenergy.cz/userfiles/file/21741760235.pdfIn PDF document text
    • https://kitapkaplama.com/upload/ckfinder/files/dekuwevokilutovi.pdfIn PDF document text
    • http://www.homefacelifters.com/wp-content/plugins/super-forms/uploads/php/files/801f7104dab52076e4d55f59e54c4b4b/75118579276.pdfIn PDF document text
    • http://kedehg.com/ckfinder/userfiles/files/budoputiwele.pdfIn PDF document text
    • https://baohohoanglong.com/userfiles/file/47220200521.pdfIn PDF document text
    • https://bursakaynak.net/userfiles/file/mojewaxeteropurirajujin.pdfIn PDF document text
    • http://emotionpicturesfestival.gr/userfiles/file/62641005514.pdfIn PDF document text
    • https://skinrepublic.vn/webroot/img/files/57729699140.pdfIn PDF document text
    • http://hotelbelleepoque.bg/userfiles/file/nafededidita.pdfIn PDF document text
    • https://petroblend.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cfaf66da3ca---62758086076.pdfIn PDF document text
    • https://www.arc-welding.co.uk/wp-content/plugins/super-forms/uploads/php/files/oqcctngif0vp6nohbdf1je54q9/24354993074.pdfIn PDF document text
    • http://gw73patriots.com/clients/1/1e/1ed986c9d410becccfd9995a8318e329/File/bagolepanarewikax.pdfIn PDF document text
    • https://flycam.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1607025d4883e6---xewirixeka.pdfIn PDF document text
    • https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1608bf07dbcd92---75806250873.pdfIn PDF document text
    • http://www.meglobalinc.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1608151c64b3c0---76849434278.pdfIn PDF document text
    • http://steclotildehorton.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160b121ae921ba---33056565309.pdfIn PDF document text
    • https://thuanxuongmonmb.com/admin/webroot/upload/image/files/91556636448.pdfIn PDF document text
    • https://feng-shuiworld.com/userfiles/file/87618151118.pdfIn PDF document text
    • http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160797561e137b---momigesezifigozapoxapa.pdfIn PDF document text
    • http://itfind.ru/uploads/file/xagojasimuxewa.pdfIn PDF document text
    • https://seataclightingalaska.com/wp-content/plugins/super-forms/uploads/php/files/1bc20d20fe6d04e7faed77429a1d5891/xerenarobiregib.pdfIn PDF document text
    • http://andreaslasnik.com/data/files/12178948429.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=what+years+did+suzuki+make+the+ozark+250PDF 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_off00010837.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10837 11100 bytes
SHA-256: 9b179f58202c4a6cbdf104b44396e9df0441fb4a50410f11b72c76bb8a379171
font_01_sfnt_off0001224f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1224F 18608 bytes
SHA-256: 4585de0a7ce32b00642c474164ba5deb66e18e34c910b70e774ad9588d78d9e9
font_02_sfnt_off00015407.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15407 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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