Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f60c909b5d726b8…

MALICIOUS

PDF

243.5 KB Created: 2021-07-02 09:53:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-13
MD5: a7f357aaf38fce3e18d109b77000aac8 SHA-1: 07399864978a775b75171d98a3d6cbb3c6fbbd20 SHA-256: 2f60c909b5d726b84ad80f99a06cc46361dda34d2bb79839aabc94f149b1aedf
166 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF was detected as malicious by ClamAV and an ML classifier, exhibiting characteristics of an advance-fee scam. The document contains numerous links to external resources, many of which point to compromised WordPress sites, suggesting a distribution network for malicious content. The primary lure appears to be related to parcel delivery or lottery winnings, a common tactic for advance-fee fraud.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9850

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
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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.
  • 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://infrive.ru/uplcv?utm_term=outline+of+psalm+78 PDF link annotation
    • http://bukharageorgia.com/sites/default/files/file/morenezezoxunatusodoloxi.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160abdfb073270---mavarubixopakorut.pdfIn PDF document text
    • http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/160c69f2d1caac---93474246282.pdfIn PDF document text
    • https://mojer.bg/files/numolamifez.pdfIn PDF document text
    • http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/659kcvn0eohbs7ja4hu14d7bv0/12503887291.pdfIn PDF document text
    • http://www.peopleoftheheath.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c3e3d8815a2---28335926222.pdfIn PDF document text
    • https://gwynharmon.com/home/gwyn/public_html/ckfinder/userfiles/files/91348882844.pdfIn PDF document text
    • http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160d47c2808ee7---84635334026.pdfIn PDF document text
    • https://ipcare.nl/wp-content/plugins/super-forms/uploads/php/files/7g25j46ue7ddtdpl0cv4t0da3q/biwijasaxamaw.pdfIn PDF document text
    • http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096c810738f4---783325239.pdfIn PDF document text
    • https://denimder.org/resimler/files/92118845031.pdfIn PDF document text
    • https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ce86287c424---94963754915.pdfIn PDF document text
    • https://creativesilhouettes.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607eb5ae678fc---zazomopivi.pdfIn PDF document text
    • https://dalilak1.com/userfiles/file/sunutuzolewuwusas.pdfIn PDF document text
    • http://webinaris.org/ckfinder/userfiles/publics/files/zenabuse.pdfIn PDF document text
    • http://www.caribbeandentist.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ee9b1d2510---8037962635.pdfIn PDF document text
    • http://eprdel.cz/userfiles/file/kurukom.pdfIn PDF document text
    • http://esoftland.com/userfiles/file/godinosugirinot.pdfIn PDF document text
    • https://akarchlight.com/wp-content/plugins/super-forms/uploads/php/files/3ddc80732ed92c9256e6457f2738a48c/5949104582.pdfIn PDF document text
    • https://www.areatransfers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7e92fb77e2---18587916019.pdfIn PDF document text
    • http://alpha-cp.com/userfiles/file/74729142096.pdfIn PDF document text
    • https://gfow.om/wp-content/plugins/super-forms/uploads/php/files/3gue8535sto50ealpp3dnupliu/nujatiwagufexagur.pdfIn PDF document text
    • https://athensviptour.com/wp-content/plugins/super-forms/uploads/php/files/f15587cc5be4f43f054782c204e3fd7f/rosuperenigifepaf.pdfIn PDF document text
    • http://amctop.com/board_data/editor_img/file/202106090546.pdfIn PDF document text
    • https://pablohernandes.com/wp-content/plugins/super-forms/uploads/php/files/48a95d5f9616543bbbfeb006d8f42011/39902334484.pdfIn PDF document text
    • http://billedbutikken.dk/articlefiles/file/zireworerajasobugef.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_off000361dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x361DD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off000379f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x379F4 10800 bytes
SHA-256: 6e237e758274f0b460055b5474152279ab8209596d7a0d9d25a1275c95cd3d06
font_02_sfnt_off000392ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x392ED 17248 bytes
SHA-256: fae020d018edefe4cbab819e393fc39bedf5155673d35b99fbacb3bdf39d7b7a

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