Malicious PDF — malware analysis report

Static analysis result for SHA-256 2eabae9092d3cb93…

MALICIOUS

PDF

72.0 KB Created: 2021-09-08 11:25:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: ff9658af04893c4e86cfaeb320a68f6b SHA-1: 7fa26244e80f41c25b4c8689b3bc11e31765ba0e SHA-256: 2eabae9092d3cb93e0a00ae2a319ee9872ef257979246ebbc2679afd7b7d86b9
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to potentially compromised WordPress upload directories or disposable hosting, suggesting a link farm designed for phishing or malware distribution. The ClamAV detection and ML classifier strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and URL patterns are consistent with techniques used to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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://auto-rujo.com/images-editor/file/mamamekejetiw.pdf In PDF document text
    • http://thesprotia.gr/uploads/file/fifuxaso.pdfIn PDF document text
    • https://regenerativetherapyforpain.com/wp-content/plugins/super-forms/uploads/php/files/d19f3746581523f3b334d5d04467f3d3/1838908120.pdfIn PDF document text
    • https://gregoryshow.ru/files/file/15027746530.pdfIn PDF document text
    • https://lakeshoresmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/511g60ed642svgj2u3f038dhp2/21843393264.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a413ddd25e2---rofimubebiledaxapajodesi.pdfIn PDF document text
    • http://www.cascinasorigherio.it/wp-content/plugins/formcraft/file-upload/server/content/files/160da298f1001d---waburinugasiso.pdfIn PDF document text
    • http://colorfusion.us/admin/images/file/12509864940.pdfIn PDF document text
    • http://resetimpianti.it/reset/public/file/43623249910.pdfIn PDF document text
    • https://isabellepieman.com/userfiles/file/12950567923.pdfIn PDF document text
    • http://alliance-ltd.com/userfiles/gogize.pdfIn PDF document text
    • https://sedefartphotography.com/resimler/files/guponaj.pdfIn PDF document text
    • http://gamboeng.com/assets/ckfinder/userfiles/files/54973799551.pdfIn PDF document text
    • http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c5e72dc161---pomavasejabegerirabu.pdfIn PDF document text
    • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/pn9k0foo16b3cah6d11epqm850/teratifibagig.pdfIn PDF document text
    • https://umutisi.com/umut/upload/files/21183908508.pdfIn PDF document text
    • http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1608e09a9f3968---vujasegukajonenokafin.pdfIn PDF document text
    • http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16079586029329---jakelapojejarizum.pdfIn PDF document text
    • https://chetanaus.org/bheru/uploadfiles/file/9712424614.pdfIn PDF document text
    • http://akkoryazilim.com/userfiles/file/fatogedutimutivas.pdfIn PDF document text
    • http://vncdata.net/app/webroot/uploads/files/zeniroxaruvuluvo.pdfIn PDF document text
    • http://gatewayhotelbangkok.com/upfile_hotel/files/sureboramufalukifa.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=making+inferences+worksheet+for+grade+7PDF 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_off0000b764.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB764 16056 bytes
SHA-256: 178ff41f413d36010063d1696b285ae4dc3cda8e3c14bded116d88a84997eaf0
font_01_sfnt_off0000e0c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0C9 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000f8e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8E0 10928 bytes
SHA-256: 9baf456c66ab3d9234c3120a5e818f157aea6ebe6557489d2965293daaf93d35

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