Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7d80eeb06d4bc6f…

MALICIOUS

PDF

92.0 KB Created: 2021-07-08 07:46:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 3eba3c3ba9478b4fe8a111a32e6a26fb SHA-1: bfda59fe18320909dae69c2078b0b1c71d6d0a17 SHA-256: a7d80eeb06d4bc6fd9823c05304ed6649090db93e7238fbe8337aaaa6d9ea419
176 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous embedded URIs and link farms pointing to potentially compromised WordPress sites and disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The presence of external URIs suggests an attempt to redirect the user to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9937

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
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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 https://drafthe.ru/uplcv?utm_term=red+and+black+scorpion PDF link annotation
    • http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/1609baeaac5775---jupitupivubivomuzukew.pdfIn PDF document text
    • https://boldvision.tv/wp-content/plugins/formcraft/file-upload/server/content/files/160c32e45b53f5---69373137447.pdfIn PDF document text
    • http://cdmatik.com/uploads/file/77039933811.pdfIn PDF document text
    • http://pocatellocampfire.com/wp-content/plugins/super-forms/uploads/php/files/d0j2gag1qi7ha23gvaet1s2l79/14659666964.pdfIn PDF document text
    • http://sentezetutmerkezi.com/upload/ckfinder/files/72646901082.pdfIn PDF document text
    • https://georgiamusicpartners.org/wp-content/plugins/super-forms/uploads/php/files/0a727d0bc5185777086d401194884882/18532156041.pdfIn PDF document text
    • https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160796dc620874---wojof.pdfIn PDF document text
    • http://hoondb.com/wp-content/plugins/formcraft/file-upload/server/content/files/160779ae455465---kamupejevemuzorexu.pdfIn PDF document text
    • http://sherwoodchambergolf.com/ckfinder/userfiles/files/22355961104.pdfIn PDF document text
    • https://fullmagicweekend.com/ckfinder/userfiles/files/gezatinevalijapuma.pdfIn PDF document text
    • https://giltmorestukko.hu/ckfinder/userfiles/files/vojapugusesadi.pdfIn PDF document text
    • https://sklep-pinokio.pl/web/uploads/files/19256126920.pdfIn PDF document text
    • http://www.radioemka.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b207e348ec---gokonirulufize.pdfIn PDF document text
    • https://prana.video/wp-content/plugins/super-forms/uploads/php/files/u15heplqosb575u4u02apti7er/nafinexami.pdfIn PDF document text
    • http://kusadasidentalclinic.com/img/userfiles/files/96492316369.pdfIn PDF document text
    • https://www.lamuccacompany.com/wp-content/plugins/super-forms/uploads/php/files/be509ab3e1408880d49429a742548d42/14415757714.pdfIn PDF document text
    • https://www.harasportcenter.com/wp-content/plugins/super-forms/uploads/php/files/mhg0g57hu7joj7dbsh5irdk496/vezonugapanijagagamun.pdfIn PDF document text
    • http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160b8808aaa702---89495991764.pdfIn PDF document text
    • https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/8018b587b7c5264ff59db1dcc753b061/tuxaxoledozisigegiloxejis.pdfIn PDF document text
    • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/16091d8291edd8---40676834088.pdfIn PDF document text
    • https://fisheaglesafaris.net/pics/user/file/80412906038.pdfIn PDF document text
    • http://www.wallisandemmanuel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f4deead574---91273033820.pdfIn PDF document text
    • http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/160856a0a8ef6a---71080895869.pdfIn PDF document text
    • https://triptoboloyfoundation.org/editorsfiles/files/48335668249.pdfIn PDF document text
    • http://157.230.241.115/image/upload/File/17253717641.pdfPDF 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_off0001050f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1050F 17292 bytes
SHA-256: 3748342e7e4897220525cb3884c78df3cf7fb08021a48fe8ad346c86f23caf95
font_01_sfnt_off0001322e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1322E 10688 bytes
SHA-256: 3742c77fb692577a92c328fc0aa01fad709c0c8b77e2096f5e9c1880e602d7ad
font_02_sfnt_off00014a85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14A85 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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