Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c2512e5be60169b…

MALICIOUS

PDF

83.3 KB Created: 2021-07-04 04:45:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: bafa62f5fede410e46af565931919508 SHA-1: 7df7828a4aaf58460387d16e88d22bc8c72cdf08 SHA-256: 7c2512e5be60169b94fc03328662683c513f4f3d8c7a8bb641c8c60ce074675c
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous links to external websites, many of which are hosted on compromised WordPress sites or appear to be on disposable domains. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The presence of link farm heuristics and the nature of the URLs suggest a deliberate effort to direct users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9946

Heuristics 6

  • 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.
  • 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://bahtiyardishekimi.com/fckfiles/file/wapaparilijipegag.pdf In PDF document text
    • http://conwaychristian.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b705ba9a0d7---52338516313.pdfIn PDF document text
    • https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/prtggp4dhcpi2826p5113dqc30/wuboxovizenobedovexupidow.pdfIn PDF document text
    • https://archltginc.com/wp-content/plugins/super-forms/uploads/php/files/67bbc99137e6fac47ffcf8883db183a8/xazagoxusuxuxojuvugona.pdfIn PDF document text
    • https://antoinepanau.com/wp-content/plugins/super-forms/uploads/php/files/40ab0ef580280d6e06b5aa24a9610f84/26893729696.pdfIn PDF document text
    • https://www.parkgest.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160b3046476764---gerugogim.pdfIn PDF document text
    • http://nationalcoopadvisors.com/userfiles/files/14891304845.pdfIn PDF document text
    • https://law.com.sg/wp-content/plugins/super-forms/uploads/php/files/a3d17250805d07b2de1af0afb51b37e5/84779863288.pdfIn PDF document text
    • http://studioarchperissinotto.eu/userfiles/files/lefuvo.pdfIn PDF document text
    • http://kinel-hunter.ru/upfiles/file/26470726615.pdfIn PDF document text
    • http://accronline.com/userfiles/file/21929495679.pdfIn PDF document text
    • http://creptiles.dk/userfiles/file/jufifolul.pdfIn PDF document text
    • http://serramentisiciliano.it/userfiles/files/43330028556.pdfIn PDF document text
    • http://minhanh.com/files/kewirelanej.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085f6cf0176d---bazimiwu.pdfIn PDF document text
    • http://springswellness.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c66a6844ff9---33697126372.pdfIn PDF document text
    • https://accuratesearch.com/userfiles/file/65299442597.pdfIn PDF document text
    • https://webmodels.studio/wp-content/plugins/formcraft/file-upload/server/content/files/16072a3a0bc51b---losadezokakipul.pdfIn PDF document text
    • https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/ab22f8dc9a3ad59912a51a928c0a6e61/luvuwebafuwobinewijakenim.pdfIn PDF document text
    • https://sgdivorcelawyers.com/wp-content/plugins/super-forms/uploads/php/files/f79d746de0fc9670c230a878e9a05549/74486483274.pdfIn PDF document text
    • http://teraval.cz/res/file/63801739521.pdfIn PDF document text
    • https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/8603a6eb8bb77fa743d2a751d3bc5697/2262594358.pdfIn PDF document text
    • https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/a41aa35665239c46d0e1435fcb1716bf/38548303252.pdfIn PDF document text
    • http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607186e7774b9---76808189842.pdfIn PDF document text
    • http://oreade-breche.fr/userfiles/file/zurilokusaguvudifulikubek.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=int+21h+assemblyPDF 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_off0000d482.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD482 23260 bytes
SHA-256: 36e8dd6296261fa338f5528b57b7eba69793eb9bb27e5b7a11a8c25143c166d5
font_01_sfnt_off00010e49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E49 10436 bytes
SHA-256: 718c6b332abfb5d4547be251ea11879c8942e2ffdf1fe5a6c3fb740a73ff7d78
font_02_sfnt_off000125ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x125EA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1