Malicious PDF — malware analysis report

Static analysis result for SHA-256 76514a022658ca72…

MALICIOUS

PDF

90.7 KB Created: 2021-07-21 01:08:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-14
MD5: e04cd6a9ba0d5aa79288d20e12b56498 SHA-1: 8c192e6f8fd2507cc3a75d564bbac6ecd62a0e1f SHA-256: 76514a022658ca721b1dca9d9776190a9256aa0a8abaff9c174edaf6b9860b76
164 Risk Score

Malware Insights

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

The PDF contains numerous external links, many pointing to compromised CMS upload directories, suggesting a link farm or phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were extracted, the structure and URL findings point towards a malicious document designed to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9822

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://osheamaloneynylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/xejil.pdf In PDF document text
    • http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4a516ae424---10614842030.pdfIn PDF document text
    • https://vrindaindia.com/php/joseph/uploads/file/nidurirudoloxisukoxorule.pdfIn PDF document text
    • http://xn--l3cbpp3gh4a5g5c.com/userfiles/files/74588848762.pdfIn PDF document text
    • https://www.edutechusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608aca0eb635d---xawiwazafumasavudiz.pdfIn PDF document text
    • http://fandimnarodaku.cz/upload/file/bogem.pdfIn PDF document text
    • https://maydongy.com/wp-content/plugins/super-forms/uploads/php/files/c3m2vrvbf1d3tlsgkih5l12tm3/65302340854.pdfIn PDF document text
    • https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/nt9co4ak5mjjohspdsmgvapcjp/15183289901.pdfIn PDF document text
    • https://forthepeoplegov.com/userfiles/file/13663061321.pdfIn PDF document text
    • http://www.pirac.org/wp-content/plugins/super-forms/uploads/php/files/aca45af51c139041dad5c2c3eab41a4c/31196229541.pdfIn PDF document text
    • https://rybczewice.pl/userfiles/file/51102695383.pdfIn PDF document text
    • http://royalgroup.at/tmp/livezituzuxanigowox.pdfIn PDF document text
    • https://www.letspassdriving.co.uk/wp-content/plugins/super-forms/uploads/php/files/e766uf3echjr80rj25eck2b6mp/61659576801.pdfIn PDF document text
    • http://idcla.net/upload/files/29709076505.pdfIn PDF document text
    • https://peltonfell.org.uk/ckfinder/userfiles/files/24558047720.pdfIn PDF document text
    • https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/cd6600566e726ad4799001b96e1ffef7/72327020854.pdfIn PDF document text
    • http://matkinhantai.com/luutru/files/josevawugigimipiwifemupu.pdfIn PDF document text
    • http://www.tobywells.org/media/fckdir/file/difozejexowu.pdfIn PDF document text
    • https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/5d3454f7ebe5466375c7ea80e78d78e6/laginorenodod.pdfIn PDF document text
    • http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c7998629cb2---rirukazekexezubob.pdfIn PDF document text
    • http://www.goldenlantern.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160b45142e0b87---runimi.pdfIn PDF document text
    • http://bainihu.com/upfiles/editor/files/pufaturesatotuwubekidil.pdfIn PDF document text
    • https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c10ee975b39---wapidomuberoxifoni.pdfIn PDF document text
    • https://www.davidcosz.de/wp-content/plugins/super-forms/uploads/php/files/0qg6mra0cjjk8jur6l7smhf58b/wujifuriwa.pdfIn PDF document text
    • https://fedico.ca/upload/editor/file/53309365339.pdfIn PDF document text
    • http://www.drop-lok.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e020cd55fd---tipakafafaxu.pdfIn PDF document text
    • http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608cb85e5f3dd---42909139924.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=growing+peony+in+potPDF 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000102ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102CE 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00011ae0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11AE0 16676 bytes
SHA-256: c981d43c4419d21dfb070f6e17f27953e097d87057048091f7fb9f2a3f29a27c
font_02_sfnt_off0001462e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1462E 10288 bytes
SHA-256: 11325d4aae069941f976e4fe9f651df9c2f620e7c01532a4e7734019ee321e88

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