Malicious PDF — malware analysis report

Static analysis result for SHA-256 74f36060b4963dda…

MALICIOUS

PDF

90.1 KB Created: 2021-09-11 09:04:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: c822582fca7f2a88d56a8a7286e6a864 SHA-1: b261c9e81bc47c7d7ef50f9a3958b2cf51536327 SHA-256: 74f36060b4963ddaf1eab0329114e813029d9c97f785262d7ce85dd3b2ae4988
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains numerous external links, many pointing to compromised WordPress uploads and disposable hosting, indicating a link farm designed to redirect users. ClamAV detected this file as a phishing trojan, supporting the assessment that the links are intended for malicious purposes such as phishing or malware distribution. No scripts were extracted, and the document body was unreadable binary data.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4399

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 https://pixomot.ru/uplcv?utm_term=stream+blair+witch+2016 PDF link annotation
    • http://birdwatching.sk/media/file/gabevejokunenevijowakudir.pdfIn PDF document text
    • http://straps.by/ckfinder/userfiles/files/pukenokijadobad.pdfIn PDF document text
    • https://www.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/qk0lmv4ppsmkvmrbmnmvli8bp3/55276601875.pdfIn PDF document text
    • http://jiachuankeji.com/upload_fck/file/2021-9-7/20210907084805691353.pdfIn PDF document text
    • http://www.reeder.ee/files/filemanager/10813479999.pdfIn PDF document text
    • http://konikanarrowfab.com/ckfinder/userfiles/files/61089360403.pdfIn PDF document text
    • https://haciendaloscipreses.cl/upload/file/54185157984.pdfIn PDF document text
    • http://capitolmetrophysicaltherapy.com/userfiles/file/waniziloxuwoxijejij.pdfIn PDF document text
    • https://maggievanostrand.com/uploads/media/file/ravuroxutadazazaxu.pdfIn PDF document text
    • http://heryeryesil.com/resimlerfiles/xorivifiwebesarimurubi.pdfIn PDF document text
    • http://files.ibiza-ferien.de/file/gumidosukovekolejagepe.pdfIn PDF document text
    • http://creptiles.dk/userfiles/file/72360428799.pdfIn PDF document text
    • https://ksmt.edu.np/assets/ckfinder/userfiles/files/nivavarabixuk.pdfIn PDF document text
    • https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/9e7d91e956e84d8c691cadec55f24898/wotalo.pdfIn PDF document text
    • http://streathamtaxi.com/survey/userfiles/files/kifizamobanavelovaj.pdfIn PDF document text
    • https://myagenda.myagenda.cz/pictures/editor/files/nogapupudepixewakere.pdfIn PDF document text
    • https://myclubowners.travelenvogue.com/userfiles/files/42386674570.pdfIn PDF document text
    • http://apsara.ru/userfiles/file/meragulevamij.pdfIn PDF document text
    • http://chromowane.com/userfiles/file/92971690620.pdfIn PDF document text
    • http://ing-ka.com/user_img/file/ziputamimagofaju.pdfIn PDF document text
    • https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1612e9ed1e8e4c---34067432407.pdfIn PDF document text
    • http://agataklimowska.pl/userfiles/file/sogubetepinikivepija.pdfIn 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011bea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BEA 10868 bytes
SHA-256: ee2a932aa423bb6ecbbcde90ac9d7537a2436cd96f2ea76cd2a3efec4e3fe3fa
font_01_sfnt_off0001352c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1352C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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