Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec1d75e5b3270be8…

MALICIOUS

PDF

85.5 KB Created: 2021-09-20 11:47:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: 081909f4112b8ae9fb9d6c467f16b1c9 SHA-1: 2690455ab3b75b9769db0e08a956631668a26e8d SHA-256: ec1d75e5b3270be8a5963ae41fe32a139f2125beed0eeeee8aa14d118803e8cb
164 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, containing numerous embedded URLs that redirect to potentially compromised websites. The presence of a 'download button' lure suggests an attempt to trick users into clicking these links, which could lead to phishing or further malware downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

Heuristics 7

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://wastran.ru/uplcv?utm_term=dream+league+soccer+2014+game+data PDF link annotation
    • http://noahmission.org/dataroom/file/xuliwaditi.pdfIn PDF document text
    • https://www.iieng.org/editor/ckfinder/userfiles/files/44360279902.pdfIn PDF document text
    • http://temple.mo/userfiles/file/zomisiretutakuxedatinixo.pdfIn PDF document text
    • http://bunny888.com/ckfinder/userfiles/files/xojerupop.pdfIn PDF document text
    • http://edwardfmcgintypa.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/futinifexipexetegax.pdfIn PDF document text
    • http://iglozawiercie.pl/zdjecia/file/33090088369.pdfIn PDF document text
    • http://preprod.app-nomads.com/ugecam/admin/ckfinder/userfiles/files/vitomonajabafibumixi.pdfIn PDF document text
    • https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16141f26fba8b1---pasenoze.pdfIn PDF document text
    • http://www.specemc.ru/upload/files/56264144494.pdfIn PDF document text
    • https://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/161358628a6b51---39343705602.pdfIn PDF document text
    • http://nuyewpilot.academy/wp-content/plugins/super-forms/uploads/php/files/1af1bd4233d62f3d5d85df4b5d5b44aa/zifegubatogela.pdfIn PDF document text
    • http://giayviettri.com/img-ftec/files/71721063865.pdfIn PDF document text
    • https://yam-token.com/business_school/uploads/file/80362352764.pdfIn PDF document text
    • https://vivaldiroberto.com/img/files/mediafiles/file/woluvamuvurenuvez.pdfIn PDF document text
    • http://ecolservizinettuno.com/userfiles/files/zowowe.pdfIn PDF document text
    • https://gadd-asso.org/userfiles/file/zorevotezukuguwaw.pdfIn PDF document text
    • http://quick-thailand.com/images/uploads/file/wuvoxetumaxetatamadug.pdfIn PDF document text
    • http://studiofagiani.eu/userfiles/files/45064855244.pdfIn PDF document text
    • http://ucg-eg.com/userfiles/file/3174276496.pdfIn PDF document text
    • https://flardochform.se/userfiles/file/xatov.pdfIn PDF document text
    • https://mingyi-lock.com/data/file/userfiles/files/53813249063.pdfIn PDF document text
    • http://ohappy.org/userData/board/file/tumuduguzadinesixu.pdfIn PDF document text
    • http://kayapaliinsaat.net/file/97462702622.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_off0000e611.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE611 19000 bytes
SHA-256: af3411c45eceecd156c027fabd36536a7c0047361882bfe5388c858b7d648594
font_01_sfnt_off000116e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116E0 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012ef7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12EF7 10988 bytes
SHA-256: dfd46ca86095bec4f61adeefd2ae3c8d34e4f448f152fca6b52918b0e97face4

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