Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a0f96fb4063fa1c…

MALICIOUS

PDF

87.1 KB Created: 2021-08-05 07:52:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 050793242a9ef75c51e248eebd9e2fb6 SHA-1: ca988e4adac9c99e3799fd02c40b40f6bc9202b0 SHA-256: 0a0f96fb4063fa1ccc476a0f15802ab5b6c3c7a26d225a267411722bcc9c60b8
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of links, many pointing to compromised or disposable domains, indicating it functions as a link farm. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution through these links. No scripts were extracted, and the document body was unreadable binary data.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9957

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 http://ellev.fr/upload/files/wijekosuxitiziza.pdf In PDF document text
    • https://xuanhongkhang.com/upload/files/2304441753.pdfIn PDF document text
    • https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/51263828f69aac76bcabf3cf58f6f67d/xifimuwa.pdfIn PDF document text
    • https://alatheir.com/atheirwsfiles/file/pemalojuw.pdfIn PDF document text
    • https://baohohoanglong.com/userfiles/file/62725145351.pdfIn PDF document text
    • http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080c85058c8a---86842882107.pdfIn PDF document text
    • http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e0a6984dff---jesefiropiluzoteful.pdfIn PDF document text
    • https://www.abaco-engineering.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608672bf3f5b7---12673715597.pdfIn PDF document text
    • http://kzlo.pl/fotki/fotki/file/18224802452.pdfIn PDF document text
    • http://aliglobshop.com/userfiles/file/11402023301.pdfIn PDF document text
    • http://copingconversations.com/userfiles/file/36707604101.pdfIn PDF document text
    • https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b206f15997---kuxomedow.pdfIn PDF document text
    • http://www.argentum.com/wp-content/plugins/super-forms/uploads/php/files/65q9t22b9v8to131223k6ene6p/jazulekidama.pdfIn PDF document text
    • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/16079197c3f6c5---13928824335.pdfIn PDF document text
    • http://www.petersmetalstitching.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160bc3254db969---kenebegifamuzipesaguwovot.pdfIn PDF document text
    • http://ylgems.com/file_media/file_image/file/selatatozezetozapodun.pdfIn PDF document text
    • https://nergizleryapi.com/image/files/61143633230.pdfIn PDF document text
    • http://visit-pune.com/userfiles/file/62710668068.pdfIn PDF document text
    • https://lightingsystemscol.com/wp-content/plugins/super-forms/uploads/php/files/5d71576e3c9ebb1b6bb9b1e3dcf4e715/90197312955.pdfIn PDF document text
    • https://neksav.com/upload/ckfinder/files/tuvuvozuj.pdfIn PDF document text
    • https://larioenergy.net/uploads/file/fasifefibevuvu.pdfIn PDF document text
    • http://geoplan.su/userfiles/file/85495587552.pdfIn PDF document text
    • http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/160a5766b84b75---fixus.pdfIn PDF document text
    • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/2h1li9e13q8qkq9l8disa4tajr/9726545110.pdfIn PDF document text
    • http://elijasprojekts.lv/files/file/gilolosuredavilatesefoge.pdfIn PDF document text
    • https://aonetreks.com/uploads/file/rudipegojewiwofe.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=gta+5+cayo+perico+camera+bugPDF 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_off0000f161.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF161 16824 bytes
SHA-256: 92b262fb124c25bb55e9f4a2dec33b694ca1dfb879f50596675f7d33b552d422
font_01_sfnt_off00011d06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D06 10924 bytes
SHA-256: 982f52c896520664eaf424ca481fe7c5e9586082651b44a9f95be1f53700ca36
font_02_sfnt_off00013641.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13641 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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