Malicious PDF — malware analysis report

Static analysis result for SHA-256 564bb9985090210c…

MALICIOUS

PDF

86.0 KB Created: 2021-06-27 00:50:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 73dceb39369e0645e7454f7d121b2cd2 SHA-1: 8cba04fe793125017b4c631b7577696d6d77bfa6 SHA-256: 564bb9985090210cc02f57579233ba77fa21e2e42fd3f6f9e5ffbbc704a72135
156 Risk Score

Malware Insights

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

The PDF contains a link farm with numerous URLs pointing to compromised WordPress sites, a common tactic for phishing or distributing further malware. The ML classifier and ClamAV detection strongly indicate malicious intent. The file's structure and embedded links suggest it is designed to lure users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

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://harpethvalleypto.org/wp-content/plugins/super-forms/uploads/php/files/a836033086c5babefc64c91925620bc7/77730515566.pdf
    • https://agermag.ro/mm/file/55209385458.pdf
    • https://www.bouldersudbury.org/wp-content/plugins/formcraft/file-upload/server/content/files/16097797030034---fupifasokebuma.pdf
    • https://terravistahometeam.com/wp-content/plugins/super-forms/uploads/php/files/8f7d808a2bb3789f7809372819c734a8/57749245591.pdf
    • https://athensviptour.com/wp-content/plugins/super-forms/uploads/php/files/7033e178e4f400bbf4da79fa623cdc92/3770845683.pdf
    • http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/16094d5dfc70a7---7919698181.pdf
    • https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/16092002a23df0---nototurenudozaxupodaxi.pdf
    • https://www.siemers-deutschmann.de/wp-content/plugins/super-forms/uploads/php/files/3q8j11d6oeh4lvame9eh3k12mu/gokowasakasun.pdf
    • https://www.helpfulhunks.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609f7b24e15d4---nebeduromefodeni.pdf
    • https://bgmediation-flm.com/userfiles/file/jutefabadujixegamurewuv.pdf
    • https://islandsvefir.is/wp-content/plugins/super-forms/uploads/php/files/sn2j78pqnooo1baokpugq35vcv/22265689817.pdf
    • http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607adf25c657a---lekopekapiposu.pdf
    • http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aca68f97bf5---95147355219.pdf
    • https://vaytieudungtragop.com.vn/wp-content/plugins/super-forms/uploads/php/files/eslk7tsrauu9hp8oco5ck0l3v9/88531526162.pdf
    • https://www.kadinlarsitesi.org/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc65c99e99---sumerotedejotuzigip.pdf
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c4d2c998551---94630885653.pdf
    • http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/160ba53d034812---wedoxivamofowokofu.pdf
    • http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/1607131eeacf0b---21717534267.pdf
    • https://avigailpekelman.com/sites/default/files/file/dodagatepebogakonuw.pdf
    • http://tlxzkj.com/uploads/file/17020859253.pdf
    • https://storage-in-motion.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d6326b16dbd---78912863132.pdf
    • http://www.annaleehuber.com/content_files/file/xelugiduwefudubebesurufum.pdf
    • https://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/da47a27a7e2f0da63e3f22eb2cc1f59b/26796192574.pdf
    • http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160adffdc24197---93277428799.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=the+royal+family
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ef10.bin
664f3115b5aa63fdc9a0177c135b220912f68df14b54be86e5007ef1ec027105		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEF10 17308 bytes
font_01_sfnt_off00011c40.bin
9630680f5bc26d0c04525c5db29b47351edabec14341e2bb2f5daa3584ee231a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11C40 10184 bytes
font_02_sfnt_off0001330f.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1330F 16792 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.