Malicious PDF — malware analysis report

Static analysis result for SHA-256 10f8d592ba3650c9…

MALICIOUS

PDF

70.3 KB Created: 2021-07-24 02:29:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 1dc26a4db7f91b2c161f6ddfd3d88c18 SHA-1: 90b5e3ea51e4928c4398fae72a753a00e3b56a52 SHA-256: 10f8d592ba3650c95d363aeb18fb9cc7ad19dfa795dabc208f92baafe8c7f8a2
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating it likely exploits a vulnerability to execute code. It functions as a link farm, presenting numerous URLs that point to potentially compromised WordPress upload directories or disposable hosting, suggesting an attempt to redirect users to malicious content or phishing sites. The presence of these links and the overall structure strongly suggest a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6611

Heuristics 5

  • 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
  • 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://wawa757.com/uploads/files/tuxevir.pdf In PDF document text
    • https://aduanaldelvalle.com/userfiles/file/97029229375.pdfIn PDF document text
    • https://emmaushuis.org/pages/7631402871.pdfIn PDF document text
    • http://www.sunarmisir.com.tr/wp-content/plugins/super-forms/uploads/php/files/rrc0fgrga9n8mbqo0pvnfkr6g3/womezejokisobajoga.pdfIn PDF document text
    • http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160f48a7d8de08---60776488766.pdfIn PDF document text
    • https://drmiamiconnect.com/wp-content/plugins/super-forms/uploads/php/files/a40175072e20c65cd872150d824bad5f/45454319289.pdfIn PDF document text
    • https://luxartparquet.com/wp-content/plugins/super-forms/uploads/php/files/3e5d7b1801cd64e7184a5ff3b417f554/voxafogawisokit.pdfIn PDF document text
    • http://basaritarim.net/admin/editor_resim/file/73424904531.pdfIn PDF document text
    • http://fhhsclassof70.com/clients/4/42/42ce21dc30e429aa976ba070b22ccf93/File/68168805488.pdfIn PDF document text
    • http://wernitznigg.at/files/kofopirunuzujigenun.pdfIn PDF document text
    • http://jsushibrea.com/uploads/files/67004940167.pdfIn PDF document text
    • https://publicbridge.pl/userfiles/file/kexajeke.pdfIn PDF document text
    • https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080ccbb0ce0c---60999582807.pdfIn PDF document text
    • http://pvsystreports.com/wp-content/plugins/super-forms/uploads/php/files/nk1vhm0cob43iop8rtgl24rva1/nofirajonabe.pdfIn PDF document text
    • http://aps-mes.com/files/file/sugulotopujudutizefubig.pdfIn PDF document text
    • https://narimasu-chintai.net/jcfiles/file/85981199258.pdfIn PDF document text
    • http://aep-tc.com/cache/fck_files/file/wapepurujibupukafex.pdfIn PDF document text
    • https://xn--80aaaglcftt5alesfkk7f.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/6d4c5b3eef90cab8622f72dfa7bc1be9/47553175836.pdfIn PDF document text
    • https://comiconfezioni.it/file/22310826672.pdfIn PDF document text
    • https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f3dece1bc9---55374478783.pdfIn PDF document text
    • https://lukili.ch/UserFiles/files/tovizegagos.pdfIn PDF document text
    • https://www.sehersirin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607748e4b5943---rojofixopuwoselusogaxa.pdfIn PDF document text
    • http://miroslaws.com/ckfinder/userfiles/files/32445094307.pdfIn PDF document text
    • https://motoquadro.de/userfiles/file/75952596163.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=how+to+buyout+a+partner+in+llcPDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e8a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8A2 16584 bytes
SHA-256: aa0f6eeffb34a1bd90634d9b524ea0182dbe70ccbf7b6f0e005612326ffb0bd6

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