Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0269af71190e78b…

MALICIOUS

PDF

77.3 KB Created: 2021-07-17 12:48:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-08-20
MD5: 2f6130bab0bfccff57b0b19b4d347fd7 SHA-1: fe89e9f19fc816580a60375a37e4293f20814bf7 SHA-256: d0269af71190e78b0a8c78f0cbcf9a2e1f813fe6b4eb6717c3be30e4f084c078
156 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It functions as a link farm, containing numerous URLs pointing to compromised websites and potentially malicious PDF files, likely intended to lure users into downloading further malware or submitting sensitive information. The presence of multiple distinct hosts and disposable hosting suggests an effort to evade detection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9840

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 https://bititechnika.com/uploads/file/bepixet.pdf In PDF document text
    • http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609ea3821ca1b---zunajekad.pdfIn PDF document text
    • http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16092844eb39d6---23376315386.pdfIn PDF document text
    • http://thaimassagemodel.com/ckfinder/userfiles/files/24037304926.pdfIn PDF document text
    • http://redactron.com/userfiles/file/25613573827.pdfIn PDF document text
    • http://smeclassof1987reunion.com/clients/37165/File/pifefikeluf.pdfIn PDF document text
    • https://shayangroup.net/wp-content/plugins/super-forms/uploads/php/files/2c025962642b90db7129065be71e9077/fejekimodezokewuwekamonax.pdfIn PDF document text
    • https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f7373b7763---32010111386.pdfIn PDF document text
    • http://ownlines.com/upfiles/file/63765407110.pdfIn PDF document text
    • https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/160c973469d0de---suliwo.pdfIn PDF document text
    • http://www.danvillern.com/wp-content/plugins/super-forms/uploads/php/files/gp3pt7hcoehrjb15h8dv0m9r97/86516276736.pdfIn PDF document text
    • https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083d826196b1---wiwasofufumabudepumininif.pdfIn PDF document text
    • http://kingalbertltd.com/uploadedfiles/file/benodelowibovub.pdfIn PDF document text
    • https://www.lowdoc-loans.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160902febb4d12---32391953606.pdfIn PDF document text
    • http://www.adanakursmerkezi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ccddd26044---81770459857.pdfIn PDF document text
    • https://www.sadcmedia.com/wp-content/plugins/super-forms/uploads/php/files/4lmbig2hm96kf1m8sd7hhfm5l4/18220143301.pdfIn PDF document text
    • http://www.hkqi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a099ecc309b---bifojalejaf.pdfIn PDF document text
    • https://hoffmanowska.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16072c7686fad2---91923981554.pdfIn PDF document text
    • http://china-zzld.com/uploadfile/file///2021062909010413.pdfIn PDF document text
    • https://theatresaucinema.fr/uploads/file/kerojagubuxoxapomibi.pdfIn PDF document text
    • http://longarmacademy.net/fckeditor/userfiles/file/fobimilit.pdfIn PDF document text
    • https://cashofferoregon.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cd3f935e157---bitixipilaxov.pdfIn PDF document text
    • https://www.areatransfers.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cf087971e7---59471613439.pdfIn PDF document text
    • http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c3c51248e11---likorulazijegekilozoruper.pdfIn PDF document text
    • http://uat.ideadunes.com/projects/ideadunes-portfolio-site/wp-content/plugins/formcraft/file-upload/server/content/files/160789210e2313---84120360501.pdfIn PDF document text
    • http://alemotta.com/resources/original/file/3110919117.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=assembly+and+details+machine+drawing+pdfPDF 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_off0000cb64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB64 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e37b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE37B 11268 bytes
SHA-256: 93cdd4f2b049dd422fd5783c2af6fb7b756b3242df676d99f96e4922cf78c2ef
font_02_sfnt_off0000fd62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD62 16496 bytes
SHA-256: b1c6c2a0253adf572eb96f9a105de3f89cf8c2ef2b0e0c32f7b8e433c9817fda

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