Malicious PDF — malware analysis report

Static analysis result for SHA-256 24064732aa10477e…

MALICIOUS

PDF

97.5 KB Created: 2021-08-12 05:50:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: d78304093a1ee6defebbe3f17dceb6fb SHA-1: 95f06035c1aeebcacf108c5de27c3812a80a881a SHA-256: 24064732aa10477e0c798c2eff41f1da79eeb7cb8976ec3cf45fca81ad333af1
164 Risk Score

Malware Insights

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

The PDF was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. The document contains numerous links to compromised websites and disposable hosting, suggesting a link farm or phishing attempt. The presence of a 'download button' heuristic further supports a malicious intent to trick the user into downloading further content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9897

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
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://bawwabatrizq.com/userfiles/file/42933243086.pdf In PDF document text
    • https://parisautotravel.com/wp-content/plugins/super-forms/uploads/php/files/62qjfogajtdf7ut9lvqs7ava40/17222122627.pdfIn PDF document text
    • https://cooperspick.com/files/badusaxoxevupetijabi.pdfIn PDF document text
    • https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/5dl1dfg43kio3v8o6ul8n47j9o/gosisigujosej.pdfIn PDF document text
    • https://law.myvzl.com/wp-content/plugins/super-forms/uploads/php/files/k7tfhk58lgqkldq3dk0rboag5k/najip.pdfIn PDF document text
    • http://tlumacz-bialystok.pl/pliki/file/musapegavesumowik.pdfIn PDF document text
    • https://atl-50.com/files/file/fepetopagifibupajagigu.pdfIn PDF document text
    • http://domingo.hu/ckfinder/userfiles/files/vizimupejosorewabatog.pdfIn PDF document text
    • https://hurghadalife.net/userfiles/files/53894830850.pdfIn PDF document text
    • http://www.slenderclub.cz/ckfinder/userfiles/files/xipowajujoz.pdfIn PDF document text
    • http://griswoldremgmt.com/uploads/files/nolukopuvaronob.pdfIn PDF document text
    • http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071a7ffc36cf---nolijinizigufuwatazire.pdfIn PDF document text
    • http://prinsart.ro/uploads/files/15215241524.pdfIn PDF document text
    • http://herodumpsterrental.com/wp-content/plugins/super-forms/uploads/php/files/70c1a3196c3cf7c32fd2301684cf35a0/48428769079.pdfIn PDF document text
    • https://chicagoportablexray.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070d225515e7---56470173553.pdfIn PDF document text
    • https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160c8611f4ed6e---2795514132.pdfIn PDF document text
    • https://www.havanasalsa-dance-tours.com/wp-content/plugins/super-forms/uploads/php/files/6d7dfac9e603601ff900eee9c09820f4/12517648753.pdfIn PDF document text
    • http://nordicwalkingturak.hu/_user/file/xarerapepaku.pdfIn PDF document text
    • http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a8063e15da---34252206379.pdfIn PDF document text
    • http://elmiraclassiccountry.com/wp-content/plugins/super-forms/uploads/php/files/3133f03902bfc2d1c09ec1d3fa093951/nubopufosula.pdfIn PDF document text
    • https://apexforestservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a69b930cca9---tuvotufojimej.pdfIn PDF document text
    • https://www.kadeavenue.com/wp-content/plugins/super-forms/uploads/php/files/61caab62e144af817a9d59b97c1de222/bilazevanujodaxuri.pdfIn PDF document text
    • http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/umumnh4fpr97uie9j3pce36ko5/35274170860.pdfIn PDF document text
    • http://quocteanviet.com/img-chamthi/files/36734039253.pdfIn PDF document text
    • http://whkmradio.com/userfiles/file/36804205249.pdfIn PDF document text
    • https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607122732206e---10325850356.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=how+to+get+unlimited+pokecoins+in+pokemon+goPDF 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_off0001170b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1170B 17784 bytes
SHA-256: 5b7f9460eb03074c5b25e2448ee4693c05740f86819d31ede8978843e2608bbb
font_01_sfnt_off00014550.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14550 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00015d67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15D67 10864 bytes
SHA-256: 1f823025966ccf9bc662dec7989e83eaf3aeda6e9adb3d4078ba5ea1e1d4d752

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