Malicious PDF — malware analysis report

Static analysis result for SHA-256 065fdafe3bdbad41…

MALICIOUS

PDF

87.1 KB Created: 2021-07-19 04:47:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-14
MD5: 5b8c5de0f7d9534b17d1a2f1996952f6 SHA-1: bcb3e33d486bb09c28cef655ba3b6651691a623e SHA-256: 065fdafe3bdbad41b016b5d84b398c01b7137305c5329e9c5d18a1c4e6b507e8
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics as malicious, including a payment redirection lure and a ML classifier. It contains numerous links to external websites, many hosted on compromised or disposable domains, suggesting a phishing or credential harvesting attempt. The ClamAV detection further supports its malicious nature, identifying it as a Pdf.Phishing.Trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9952

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
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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://magooferta.pl/uploads/fck/file/47212348975.pdf In PDF document text
    • https://refour.dk/wp-content/plugins/super-forms/uploads/php/files/b7510034a2e386f9a32d9c14ccbd0fa9/xesadidivobilozone.pdfIn PDF document text
    • http://clarasonic.com/upload/file/32511112430.pdfIn PDF document text
    • http://ginzaoakland.com/uploads/files/93553284523.pdfIn PDF document text
    • https://swift-tw.com/lcc/upload/files/94576083460.pdfIn PDF document text
    • https://namastehealth.in/wp-content/plugins/super-forms/uploads/php/files/tj0fs67duejjkgfcsjh2f9bc3n/xajuj.pdfIn PDF document text
    • http://chipublichouse.com/ckfinder/userfiles/files/66870216300.pdfIn PDF document text
    • http://smart-ventures.ch/upload/Editor_Images/files/41577819413.pdfIn PDF document text
    • https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c47a7b3516---jerazog.pdfIn PDF document text
    • https://funkydrop.shop/wp-content/plugins/super-forms/uploads/php/files/e5cba0f63f517c01e3f7a24e8e6b6779/63206991132.pdfIn PDF document text
    • http://nedirajtebosnu.net/userfiles/file/6028203043.pdfIn PDF document text
    • http://dhs1970.com/clients/9/98/98bceae81adeaace0f0761aa7b0d12fa/File/naledetuvitutiwevowu.pdfIn PDF document text
    • http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160d306eee42fb---nuwirapojasokanorosut.pdfIn PDF document text
    • https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/160aa27a382ea9---64014821445.pdfIn PDF document text
    • https://realestateconnect.pro/wp-content/plugins/super-forms/uploads/php/files/klg29990lnrfudsgqfd4knn0v7/pimukato.pdfIn PDF document text
    • http://www.jamesbgriffinlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095d71ba3ce5---67208244042.pdfIn PDF document text
    • http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/ia8etmli3bm9la4ks521619bs3/85122980140.pdfIn PDF document text
    • https://tocgia247.com/wp-content/plugins/super-forms/uploads/php/files/vlimbkaina807at1uiijvlu5ac/medavubiketugixi.pdfIn PDF document text
    • http://sosnovgeo.ru/userfiles/file/23007217867.pdfIn PDF document text
    • http://thanuyentea.com/ckfinder/userfiles/files/93708400369.pdfIn PDF document text
    • https://www.democratum.com/wp-content/plugins/super-forms/uploads/php/files/4336bcee07d5fb1788c3acc2a5bcae15/zomebepag.pdfIn PDF document text
    • http://yaqeen-eg.com/userfiles/file/tijirazidexagejerunire.pdfIn PDF document text
    • http://falconfam.com/ckfinder/userfiles/files/20385171541.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=paying+tithes+in+new+testamentPDF 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_off0000f35e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF35E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00010b70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B70 16928 bytes
SHA-256: a5d7b04627fa7fcff84afa982f082aa24076acc79f0b04c3474f8214a5decc4d
font_02_sfnt_off000137a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x137A9 10492 bytes
SHA-256: 197ce2da9c33a16e6d413a5b13e3df0ba63faf893f679754088699f498514fe9