Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebe22f7365d7ad28…

MALICIOUS

PDF

201.3 KB Created: 2021-07-25 06:41:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 06e52f1850cc464f7573d80034294c72 SHA-1: 5653827caa6af2c0e12bb285f842bc41e9f8f22f SHA-256: ebe22f7365d7ad2877651017d66773e41f2f6f7005cc6b1d569905f02a803bc8
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link farm pointing to compromised WordPress upload storage, indicating an attempt to host and distribute malicious files. ClamAV detection and ML classification strongly suggest malicious intent. The presence of embedded URLs, though many are benign, supports the overall phishing and malware distribution theme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9800

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.
  • 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 http://pogologistics.com/ckfinder/userfiles/files/ragovigejiwizuk.pdf In PDF document text
    • http://fouladsazanco.com/Upload/file/35340655247.pdfIn PDF document text
    • https://c4ir.ae/wp-content/plugins/super-forms/uploads/php/files/o67aqp1cr216o4vmj4j7rf99c6/84670725502.pdfIn PDF document text
    • https://traveletrust.com/basefile/traveletrustcom/files/41850195629.pdfIn PDF document text
    • http://hyderabadibiryanicorner.com/admin/images/file/lajeboterikodewaku.pdfIn PDF document text
    • http://daydreamspin.com/userfiles/file/wegeluwikexumutatufokes.pdfIn PDF document text
    • https://masterpieces-mallorca.com/wp-content/plugins/super-forms/uploads/php/files/6a9b1a259c1d51a06cfe02aa3142ce1a/32938093850.pdfIn PDF document text
    • https://blueridgelightingandcontrols.com/wp-content/plugins/super-forms/uploads/php/files/4a86969df71a5b73f13d0cf024f170b6/20274055905.pdfIn PDF document text
    • https://stiff.pl/ckfinder/userfiles/files/zovubazavonudini.pdfIn PDF document text
    • http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609202f50fb35---bemafizogepelapetaximob.pdfIn PDF document text
    • https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090475c99d58---69694041181.pdfIn PDF document text
    • https://baobihungphu.com/media/ftp/file/78387065332.pdfIn PDF document text
    • http://vinhomeshaiphong.net/app/webroot/img/files/sukupunupej.pdfIn PDF document text
    • https://glowskincare.net/wp-content/plugins/super-forms/uploads/php/files/3935b3b19498b20b073f0380e0b0b7ff/49860599840.pdfIn PDF document text
    • http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607afa66884ea---19002400335.pdfIn PDF document text
    • http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/160786d8916e31---36758081496.pdfIn PDF document text
    • http://standrewsparishhighschoolclassof1964.com/clients/70428/File/52154801265.pdfIn PDF document text
    • http://gumberryoleschool.com/clients/33891/File/99149186539.pdfIn PDF document text
    • http://legendtec-eg.com/wp-content/plugins/super-forms/uploads/php/files/m3fpdi2ne31rlkr154lmfpg546/72786777848.pdfIn PDF document text
    • http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609b52d7737d9---meguboz.pdfIn PDF document text
    • https://roadtoring.com/wp-content/plugins/super-forms/uploads/php/files/7080c44727eac9ebc52e95a5c8ec0d3f/37299708288.pdfIn PDF document text
    • http://barcabianca.eu/upload/file/94799694694.pdfIn PDF document text
    • https://gpuhub.net/wp-content/plugins/super-forms/uploads/php/files/83t9tetib8pbod2jder8o3mf5q/ridupolenijifani.pdfIn PDF document text
    • http://danies.ru/ckfinder/userfiles/files/zotimimifowof.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=are+you+working+at+the+moment+%28change+the+sentence+into+negative+form%29PDF 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_off0002b382.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B382 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0002cb99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB99 11332 bytes
SHA-256: 4440d96fb70a54210f59c33bd09c614a9581c150b47488f5214969cca2e6f051
font_02_sfnt_off0002e659.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E659 18540 bytes
SHA-256: a1b8e2688dab6d6805eda34f020d2d1602ac8ac5bd8da68b1dc72b8440dcb6c9