Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3a6b8c9755ed95f…

MALICIOUS

PDF

78.9 KB Created: 2021-07-25 09:09:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 2a96d8fab4d2875fa0a95ee318019e53 SHA-1: 8d292615c4efe553fcc0845127650da3d7ac826a SHA-256: d3a6b8c9755ed95faecabd90cffff422c9f2618d0a4d3a532845eaceee33d152
154 Risk Score

Malware Insights

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

This PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It functions as a link farm, containing numerous URLs that point to potentially compromised websites or disposable hosting. The primary purpose appears to be directing users to malicious content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8488

Heuristics 5

  • 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
  • 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://ttmplus.com/userfiles/files/36702557675.pdf In PDF document text
    • http://thaidicattery.com/clients/f/f7/f7b4890cfba443994123e46b8078d6bd/File/60519033311.pdfIn PDF document text
    • https://protechlighting.com/wp-content/plugins/super-forms/uploads/php/files/604d9cf0ecd05fe6059032cb724d9a7f/zefadoporifuvesinadi.pdfIn PDF document text
    • http://www.gaviprintpack.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d2b8122c62---99530249834.pdfIn PDF document text
    • https://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/a34ee29ec290eed1578c45eddf690e83/savusunalatevavufebipebeb.pdfIn PDF document text
    • https://fceresources.com/ckfinder/userfiles/files/10036614676.pdfIn PDF document text
    • http://desushibar.com/userfiles/file/15505464172.pdfIn PDF document text
    • http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160be4770065b5---35791885954.pdfIn PDF document text
    • https://www.siemers-deutschmann.de/wp-content/plugins/super-forms/uploads/php/files/qb8p4l4oo58fnlnm09q83er2qe/fonubuj.pdfIn PDF document text
    • http://kokalietudarbnica.lv/files/files/nonedeneximokabez.pdfIn PDF document text
    • http://kimhoatra.com/upload/fckimagesfile/49201628289.pdfIn PDF document text
    • https://brahmagnanam.org/fck_uploads/file/21801930514.pdfIn PDF document text
    • http://hasici-pristroje-eshop.cz/files/file/babepid.pdfIn PDF document text
    • http://reinforcingourheritage.com/clients/0/08/0860c2a235168fe7e4a745c824023bdd/File/borigapofunez.pdfIn PDF document text
    • https://webtechnocrats.com/upload/file/5045073127.pdfIn PDF document text
    • http://africa-emergence2019.com/userfiles/file/91576266115.pdfIn PDF document text
    • https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c89a5f1f80---32288344910.pdfIn PDF document text
    • http://angelescare.com/userfiles/file/8719038270.pdfIn PDF document text
    • http://luxmeterthai.com/ckfinder/userfiles/files/savebi.pdfIn PDF document text
    • https://aradovan.com/userfiles/file/vuwilidiferuse.pdfIn PDF document text
    • http://parzenica-bialka.pl/userfiles/files/15161775739.pdfIn PDF document text
    • https://mymango.ru/wp-content/plugins/super-forms/uploads/php/files/55c186c4a909efa9b420dd5fee5bfd51/40207013209.pdfIn PDF document text
    • http://yuha.be/_files/file/fowupugumumapuwazedujunu.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=stickman+rpg+cheats+unlimited+money+unblockedPDF link annotation
    • https://mediaget.com/userfiles/files/57957557891.pdfIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f56c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF56C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00010d83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D83 11484 bytes
SHA-256: 206166e90c522535d838bb9f748bc5af35b267b06a5953ae44972fed173c3a08

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