Malicious PDF — malware analysis report

Static analysis result for SHA-256 48349574e7bd06c6…

MALICIOUS

PDF

192.9 KB Created: 2021-06-27 21:35:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 78fcfa23d3332a08d4c23659f1bfb008 SHA-1: e01013eee323094dcc28750c736912abd8e81d30 SHA-256: 48349574e7bd06c61e8cf687c72e575f399df55405e70ab8a1d6b53d4c29f08b
204 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains heuristics indicating it is part of an advance-fee scam, likely impersonating a parcel delivery service. It also contains numerous links to potentially compromised websites, suggesting it is used to distribute further malicious content. The ML classifier strongly flags this PDF as malicious, and ClamAV also detects it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9906

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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 http://ipceurope.eu/assets/file/69941582459.pdf
    • https://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/a40d55a68464e28b161c5082409fd867/relilolitobabajirav.pdf
    • http://recamonde.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160d7312c4e5a6---pijepenixegurudixek.pdf
    • http://vizit-k.net/uploads/editor/files/39941061957.pdf
    • http://glina-master.ru/admin/ckfinder/userfiles/files/nidevexasexapuporupiruf.pdf
    • http://www.cerel.eu/images/wyswig_images/file/fojekatawosevorubigavi.pdf
    • http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16075fd5a2d75b---69340014567.pdf
    • http://goref.ru/files/file/38335905433.pdf
    • https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/0252374619c7701602ccff32f3c01e16/43528718671.pdf
    • http://curry-box-deluxe.de/userfiles/file/nenuxolu.pdf
    • http://etcad.net/np/upfile/file/31649806958.pdf
    • http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607c21bceefe9---mimajabetoto.pdf
    • http://copy2d.com/ftp/image/file/javepolopesolenaxujo.pdf
    • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160ac13fbbbf20---ketemibewoxepe.pdf
    • https://mmszke.hu/files/file/23644383165.pdf
    • https://evenimentecastel.ro/wp-content/plugins/super-forms/uploads/php/files/t7kadf9pv9qe9rnff38m7aajhk/mojazuzamubusepal.pdf
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f6ac5bce4e---55665062480.pdf
    • https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7836c67be7---tebixutas.pdf
    • http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/1606fde48189a5---30437243732.pdf
    • https://myhoorayhealth.com/wp-content/plugins/super-forms/uploads/php/files/mkq5flon8uur87v1kf43hqnq25/wotewinitazotafixij.pdf
    • https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/c4c1977a24ba96864f9dcde16d6472e3/3899486432.pdf
    • https://lynnesnaturaltreats.com.au/wp-content/plugins/super-forms/uploads/php/files/f707ac8a836a16f2e2fd57b2e623db11/32766824734.pdf
    • http://3xlove.com/uploadfile/file/8492056955.pdf
    • https://givemeit.ru/wp-content/plugins/super-forms/uploads/php/files/e6974bc2c4f7986d2bb47080982c977d/mibojexu.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=causes+of+physiological+jaundice
    • 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_off000291dc.bin
60d6c1cb5013268fc50e155b6998aca57d59135a06876f69df3ef3f61b912d37
pdf-font-stream PDF embedded font (sfnt) at offset 0x291DC 11076 bytes
font_01_sfnt_off0002ab66.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x2AB66 16792 bytes
font_02_sfnt_off0002c378.bin
9e7fa43a635983f3e34aee735725f0684fa4c18be74dd3ffc427c8637fa8480c
pdf-font-stream PDF embedded font (sfnt) at offset 0x2C378 18352 bytes