Malicious PDF — malware analysis report

Static analysis result for SHA-256 75d3e4a52e8c300a…

MALICIOUS

PDF

121.6 KB Created: 2021-07-05 07:48:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 18ab8a66ec58494abeeed301a5ac6a85 SHA-1: caecc90b3a511f2b6a95bd2d23d7d2f2f0435468 SHA-256: 75d3e4a52e8c300acf1321276afec36007abf7996e66ddfdc0d2a15338077617
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was identified as malicious by ML classifiers and ClamAV, and exhibits characteristics of an advance-fee scam. It contains numerous links to disposable hosting and compromised CMS upload storage, suggesting an attempt to distribute malicious content or phish for credentials. Although no scripts were explicitly extracted, the PDF structure and link farm indicate a lure for financial fraud.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9915

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
  • 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.
  • 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://policylic.com/uploads/files/13576374448.pdf
    • http://stylist.in.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160dca62d40c4d---goliratam.pdf
    • http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16070085613bb4---kinumuvowisugijek.pdf
    • https://www.denisonlandscaping.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e2f5b346b0---sekesugadepekogojomofamaz.pdf
    • http://trenermichal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607c0e3230c53---93730370627.pdf
    • http://www.allatpatikapecs.hu/images/file/94808168252.pdf
    • http://artgraf24.pl/userfiles/file/vagonafegunagizod.pdf
    • http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b20a3866e9---wiwubenuk.pdf
    • http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16071ca76ebd1a---femoturimugu.pdf
    • https://eyestech.in/wp-content/plugins/super-forms/uploads/php/files/t5pmi9ehheigb4i0udil2no4d2/gewegamixoregenowalujoror.pdf
    • http://www.elitagida.com.tr/wp-content/plugins/super-forms/uploads/php/files/59qfho7g7ifns1ga8nokni3oe0/20250170085.pdf
    • https://www.pennlighting.com/wp-content/plugins/super-forms/uploads/php/files/aa213766dac41b35ca4b9dc269b510c9/komiberemovofewin.pdf
    • http://www.britocunhaadvocacia.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/160830c30d2f8d---25526409888.pdf
    • http://euro520.net/userfiles/file/162128964662007474.pdf
    • https://okazdedziecko.pl/_files/Media/file/5469404680.pdf
    • http://www.adatechotomasyon.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608cc46685e70---fodowuz.pdf
    • https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609c9a07e3d28---fobigenanepusaze.pdf
    • https://www.traveltimevipp.com/wp-content/plugins/super-forms/uploads/php/files/fb4f783e11b528cf3294e2f0e5f4eb72/71636960095.pdf
    • http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609df8fb79636---3685701547.pdf
    • http://m2m2design.com/userfiles/48797841053.pdf
    • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160c2d308cda2d---javoroxanivixukubogulado.pdf
    • http://eko-inwest.eu/upload/file/kixozemaputuruzafu.pdf
    • https://space1500.com/wp-content/plugins/super-forms/uploads/php/files/d2f4313a62017a3e6bd7275869a6e38a/27336104898.pdf
    • https://www.tessilgiada.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609ef3c301e8d---36939294058.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=heredity+and+genetics+unit+test+answers
    • 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00015e5f.bin
79acf63e6d7d19197432efc643633ed0c6e4ee8f4f6a7824e86a6543d59f8870		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15E5F 10672 bytes
font_01_sfnt_off000176c8.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x176C8 16792 bytes
font_02_sfnt_off00018eda.bin
0a9fbfa24ca9f7d4751a9e8af52fbb5bf35a7b5ac95b6c820198c06fd92be735		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18EDA 20144 bytes
font_03_sfnt_off0001c351.bin
325c5f5cda05429ae92d15c23118ca1b8712e485108c584e1e30b0ff615913b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1C351 16084 bytes

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