Malicious PDF — malware analysis report

Static analysis result for SHA-256 02b269ae77ad8040…

MALICIOUS

PDF

81.4 KB Created: 2021-09-08 05:52:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 2d078a5a85c8a5aa7b8baad28a2c81ba SHA-1: 8269dbe7ca47c5aa011d498a1a73cabed3d38ba9 SHA-256: 02b269ae77ad804070ed835cd63f3950cba70e6be1e73839f09b511103752df0
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. While no scripts were explicitly extracted, the PDF structure and URL patterns are consistent with techniques used to lure users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

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://drafthe.ru/uplcv?utm_term=social+and+emotional+development+of+child+and+adolescent+pdf PDF link annotation
    • http://yourbuilding.ru/userfiles/files/30444946686.pdfIn PDF document text
    • http://firegallery.ru/img/upload/18672934920.pdfIn PDF document text
    • https://makemycake.gr/wp-content/plugins/super-forms/uploads/php/files/j2d0aeuupeko2l3u8qjjrng37s/20253009468.pdfIn PDF document text
    • http://biaikatolikus.hu/files/file/furum.pdfIn PDF document text
    • https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074ff5e07310---zegipexinabe.pdfIn PDF document text
    • https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/acd48cd8de604f87958936a3ae832e34/pogubekimulosuzi.pdfIn PDF document text
    • http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/160edd48c748c6---vapazefataxif.pdfIn PDF document text
    • http://vasvaripalmuzeum.hu/upload/file/47931219092.pdfIn PDF document text
    • https://moniimpex.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610baf93d16eb---povexageses.pdfIn PDF document text
    • https://comesa.com.pe/wp-content/plugins/super-forms/uploads/php/files/kbe10ep2aruk7k6qb8ua1drla6/17372376620.pdfIn PDF document text
    • http://igabana.com/upfolder/e/files/20210620194606.pdfIn PDF document text
    • https://cubic.is/userfiles/file/29817185434.pdfIn PDF document text
    • https://tradingphrases.net/userfiles/files/76488583801.pdfIn PDF document text
    • https://valve-toho.com/userfiles/file/50923624462.pdfIn PDF document text
    • http://omeofest.eu/userfiles/files/gupuma.pdfIn PDF document text
    • http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/1ch0hvp03tj2jdmcjulhdvi4t2/38139238118.pdfIn PDF document text
    • https://www.engltg.com/wp-content/plugins/super-forms/uploads/php/files/16ef23bf8587f80f32a63e729626f9b2/zodakukudar.pdfIn PDF document text
    • https://arihantgranites.in/wp-content/plugins/super-forms/uploads/php/files/aeitb4h0psre431mqjitkqgkp6/benoronodor.pdfIn PDF document text
    • http://arcdesantmarti.com/biocop/Images/images-editor/file/71560362186.pdfIn PDF document text
    • https://balajihighfields.in/userfiles/file/vasabibekofabumulemifefim.pdfIn PDF document text
    • https://stefandes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ab2f97a3c5---lerinemanijarenivuwi.pdfIn PDF document text
    • http://richmore.kr/uploadfile/fckeditor/file/marusumiz.pdfIn PDF document text
    • http://sieuthibongda.net/ckfinder/userfiles/files/wuzezafatusifumaxudodaze.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_off0000d822.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD822 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000f039.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF039 10928 bytes
SHA-256: 158a8828b335663e5adda4845e90af52cb396ba9995671c36d5d65b2df7993e7
font_02_sfnt_off0001094e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1094E 17852 bytes
SHA-256: 58665556e4b3f0bf3fb8a41c17759dc4e9965542cacfc1f2898af49ed6ccdcf3

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