Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fe13dbc0813ca59…

MALICIOUS

PDF

94.7 KB Created: 2021-07-07 23:27:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 3f7c21934fe28f3dfae185f5936e1979 SHA-1: 8fc2d34f99ef790a7debe740c5c7ddba50587920 SHA-256: 2fe13dbc0813ca592350a45124dcf564f9b1fc32a58a38849d0f0c827cbf84dc
156 Risk Score

Malware Insights

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

The PDF file contains a large number of external URIs and is identified as a link farm, with many links pointing to compromised WordPress sites. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. No scripts were extracted, but the numerous URLs serve as the primary indicators of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9820

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 https://philabc.ru/uplcv?utm_term=physical+jobs+that+pay+well PDF link annotation
    • http://nanumed.ro/uploads/files/fivopezajukeropafem.pdfIn PDF document text
    • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160e330606ed40---kadidajuzi.pdfIn PDF document text
    • https://songhong.info/userfiles/file/vusexafipebirodegiw.pdfIn PDF document text
    • http://controldellaves.com/app/webroot/arxius/file/josodokozagowalavin.pdfIn PDF document text
    • http://bonfiremadigan.com/uploads/fckeditor/file/70067187505.pdfIn PDF document text
    • https://alihuata.com/userfiles/file/zesogunafibavasuxela.pdfIn PDF document text
    • https://www.digitalsofts.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a9d38e99e4---51299397565.pdfIn PDF document text
    • http://fashioncenterpoint.com/wp-content/plugins/super-forms/uploads/php/files/dfa712c432cc93b0e3b873b8a19dfac9/xonabo.pdfIn PDF document text
    • http://kstarsmall.net/userfiles/file///gejurimibojonak.pdfIn PDF document text
    • http://jcon-aps.dk/userfiles/file/81633003991.pdfIn PDF document text
    • https://abeess.com/userfiles/file/dapanobotirubemo.pdfIn PDF document text
    • http://canxetaidientu.com/images/file/madoninesusurumi.pdfIn PDF document text
    • http://progfin.pl/userfiles/file/koluzivikefixinuvep.pdfIn PDF document text
    • http://sazjah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609681781c858---31697732486.pdfIn PDF document text
    • http://fine-cottage.ru/userfiles/files/21872097990.pdfIn PDF document text
    • http://www.jamesbgriffinlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073d6d99ed29---9929009048.pdfIn PDF document text
    • https://kantankacreative.com/wp-content/plugins/super-forms/uploads/php/files/823835928969bad36e1c7fe70a6a8190/joxedazegibopoxopusesa.pdfIn PDF document text
    • https://promocionesnma.com/wp-content/plugins/super-forms/uploads/php/files/783864053dd322aea3a116eb6a8695c3/fixokusi.pdfIn PDF document text
    • https://mygamedaysports.com/wp-content/plugins/super-forms/uploads/php/files/597b2b50a1de3b460064bbfb9b3b4716/85806485707.pdfIn PDF document text
    • https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609dd0ee0b06d---xebabasebepilojabu.pdfIn PDF document text
    • http://fw-simple.com/uploads/files/19523719054.pdfIn PDF document text
    • http://nandeestationery.com/userfiles/files/85295912486.pdfIn PDF document text
    • https://fenixfalt.com/userfiles/file/varivusopaxewazigibabi.pdfIn PDF document text
    • https://www.thecandystoresudbury.com/wp-content/plugins/super-forms/uploads/php/files/4o6jifuublkv48cfqa2biqd0hq/33658632277.pdfIn PDF document text
    • https://dijitalsanat.link/upload/files/sobanerimawar.pdfIn PDF document text
    • http://vom-ragnaroek.de/uploads/file/37467393499.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011018.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11018 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0001282a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1282A 17024 bytes
SHA-256: 94873e3e26cdae24f4d2848b3e879d60f6ac8ebf53cc4f606a82919141138308
font_02_sfnt_off0001549e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1549E 10736 bytes
SHA-256: d7a691fe9abb80813375a64e573b17c60f0677dc077409bb21a288100de51312

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