Malicious PDF — malware analysis report

Static analysis result for SHA-256 69dfb848abf837ec…

MALICIOUS

PDF

86.2 KB Created: 2021-09-02 10:29:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 9bfc9d9145faa234f99f7fceed24e8e2 SHA-1: 44afc6c50cc8cf6b02951f2c6ddb4d6258044913 SHA-256: 69dfb848abf837ecb5315f8e8dbc0c014caa95369648e6e570175a1ce6d7014f
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, pointing to numerous compromised websites, many of which are hosted on disposable domains or utilize vulnerable CMS plugins. While no scripts were directly extracted, the nature of the link farm suggests it is designed to lure users to malicious content, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9957

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 http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/1609876329d184---36169506628.pdf In PDF document text
    • http://shsuorui.com/uploadfiles/fckeditor/20210622/file/16243840551544.pdfIn PDF document text
    • https://bevillelecomte.ovh/ckfinder/userfiles/files/7934498999.pdfIn PDF document text
    • http://msinternationalbeautypageant.com/clients/8/8c/8c0f0497d7166b07b5568c04be8084ca/File/67563801941.pdfIn PDF document text
    • https://www.multilandtours.com/assets/ckfinder/userfiles/files/33325207100.pdfIn PDF document text
    • http://heatexchangersolution.com/upload_fck/file/2021-8-17/20210817064633514731.pdfIn PDF document text
    • http://sip7.online/wp-content/plugins/super-forms/uploads/php/files/3554af4d238c24afce0208c57acbbd01/jutixotuzutovopejewuzigak.pdfIn PDF document text
    • http://vinmexindia.com/uploads/56738642106.pdfIn PDF document text
    • https://www.harnoordesigns.com/wp-content/plugins/super-forms/uploads/php/files/22j9v54dro70a5tvs02gcoo5k3/getom.pdfIn PDF document text
    • http://e-kva.ru/admin/ckfinder/userfiles/files/rivejadomobosixuriwu.pdfIn PDF document text
    • http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/16100374a54cfd---90889814273.pdfIn PDF document text
    • https://cihangirhotel.com/upload/ckfinder/files/34980713000.pdfIn PDF document text
    • https://elpmarketing.ca/wp-content/plugins/super-forms/uploads/php/files/3e006c6eaa1f865d8521409befbe8480/luvetaso.pdfIn PDF document text
    • https://kachhiproperties.com/wp-content/plugins/super-forms/uploads/php/files/sfcum21oi6sb0th5k31s4ibh21/93157269430.pdfIn PDF document text
    • https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/0c9725344a0b6f4ff7e56321ed5b1296/8406610477.pdfIn PDF document text
    • https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160e7ddd19dd51---45022493124.pdfIn PDF document text
    • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/g0kra4h8jh0bgr97ntsh6sfcih/fifidazin.pdfIn PDF document text
    • http://rebeccaosborne.com/uploads/63224462654.pdfIn PDF document text
    • http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160fe45a81071a---15338253024.pdfIn PDF document text
    • http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077d884e46da---42648889581.pdfIn PDF document text
    • http://nitexprofi.cz/userfiles/file/19682101713.pdfIn PDF document text
    • https://baconbites.com/wp-content/plugins/super-forms/uploads/php/files/i0qtpnnn7v9lqenbh2jmjkpf16/larafona.pdfIn PDF document text
    • http://tcgardening.com/userfiles/file/2021080304490473499.pdfIn PDF document text
    • http://ilovehikari.com/uploads/files/87605531889.pdfIn PDF document text
    • http://cathyknightwaite.com/ckfinder/userfiles/files/sezitareteroxi.pdfIn PDF document text
    • https://www.tyrtaios.gr/ckfinder/userfiles/files/xusasoregipefo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=what+is+equalityPDF 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_off0000ede5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDE5 10232 bytes
SHA-256: b3340f4475a91b5e9e7eb3ce9746dec79a0106669cbc6c5a77e240765da1324c
font_01_sfnt_off0001050d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1050D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011d1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D1F 17736 bytes
SHA-256: e1845876f906f82923edd575d33d8d5652d333888caebf1ef3d4c22e8c216166

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