Malicious PDF — malware analysis report

Static analysis result for SHA-256 30e2434c95ad598d…

MALICIOUS

PDF

81.0 KB Created: 2021-09-03 16:57:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: f18e658fb37b72ea5fab068d47e312e0 SHA-1: 0774185a2d4c79e4d30c45f332a6ec02c56803bf SHA-256: 30e2434c95ad598d8808b949b090367a6b8b444415733e6335f20053616cb589
176 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF document contains numerous external URIs, many pointing to compromised WordPress uploads and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. No scripts were extracted, but the structure and URL patterns are indicative of a downloader or phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9949

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://pixomot.ru/uplcv?utm_term=pyramid+principle+book+pdf PDF link annotation
    • http://noxsun.com/jingkelun/userfiles/files/20210619161250.pdfIn PDF document text
    • http://www.morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f671ee308c---15313013284.pdfIn PDF document text
    • http://kadh.kr/bobod/upload/file/benitidisuvut.pdfIn PDF document text
    • https://majorsagilekvaros.hu/uploads/file/fuminagatopepukasiw.pdfIn PDF document text
    • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/a0ehj7s9re00efoodvk4860k10/86365150779.pdfIn PDF document text
    • http://140.121.125.49/ckfinder/userfiles/files/20210803_172614.pdfPDF link annotation
    • http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/160a0b7d24f082---38879265875.pdfIn PDF document text
    • http://accessiblevehicleservices.com/userfiles/file/jiwaletijaferapunadokod.pdfIn PDF document text
    • https://rippa.pt/files/file/majojiwelaligexav.pdfIn PDF document text
    • https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160cba408e64b6---mupuledenide.pdfIn PDF document text
    • http://taiwan-tsai.com/upload/files/xapavazugorukutemubi.pdfIn PDF document text
    • https://communeouchamps.fr/userfiles/file/2033168649.pdfIn PDF document text
    • https://zhansq.cn/upload/file/98059084900.pdfIn PDF document text
    • https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/16105b47ab07a3---19810574080.pdfIn PDF document text
    • https://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/3f878a780e10857d0e3ab944da1cec83/78452231368.pdfIn PDF document text
    • http://ranjitabiswas.com/userfiles/files/18951828187.pdfIn PDF document text
    • https://garraldaarquitectura.com/garralda_userfiles/files/66171891662.pdfIn PDF document text
    • https://ldoris.com/upfile/files/20210903090302.pdfIn PDF document text
    • http://sl-light.ru/design/img/upload/file/38849848591.pdfIn PDF document text
    • http://lamarchesainterita.be/lamarchesainterita/imgdb/news/files/vanokosexezasipoboxoga.pdfIn PDF document text
    • http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/pap9pih30jh6imhmavgdlnsdv6/topodedef.pdfIn PDF document text
    • http://recruiters-zone.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b76f0bc7539---86612378538.pdfIn PDF document text
    • https://www.growxponential.com/wp-content/plugins/super-forms/uploads/php/files/s09h6eis6reiskcqed0epr5nh3/49785048531.pdfIn PDF document text
    • http://music-summer-courses.eu/upload/files/mitafiz.pdfIn PDF document text
    • http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/160bfbddb9bcba---26081555711.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

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_off0000d910.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD910 10864 bytes
SHA-256: 2e744c3aab33b1c90fa2c37b32c247921dd3685d458145e343d9aff04a3c9587
font_01_sfnt_off0000f1e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1E1 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000109f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109F3 17248 bytes
SHA-256: 54b0eef18c817aa91f29772b7bcb959af79d7027f2eadaac2a4a9cf7e8a4ab77

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