Malicious PDF — malware analysis report

Static analysis result for SHA-256 92595c277c27931a…

MALICIOUS

PDF

83.0 KB Created: 2021-09-22 09:59:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: ccdc937e141c6edee42dae5609c9d6a0 SHA-1: 7d279915887c4a14b0d8b1c540a0a2e98c085016 SHA-256: 92595c277c27931a8c1e6124c727e49ea0bb21ebd16197b3f049fda89d9cf124
196 Risk Score

Malware Insights

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

This PDF was detected as malicious by ClamAV and an ML classifier, exhibiting characteristics of an advance-fee scam. It contains numerous links to disposable hosting, suggesting an attempt to distribute malicious content or phish users. The document's structure and heuristic firings strongly indicate a lure for financial fraud.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

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://israel-aliya.com/wp-content/plugins/super-forms/uploads/php/files/e32a85b38777b45d2325ae987d741c9a/lufuje.pdf
    • http://ticketsperiodico.com/galeria/files/zorezawurasobezibolevuv.pdf
    • http://nmways.com/uploads/fckupload/file/xunosuri.pdf
    • http://www.marcelasemper.com/wp-content/plugins/formcraft/file-upload/server/content/files/161472745810ef---nigazebufurevo.pdf
    • http://jeyadhurgatemple.com/userfiles/file/netebesowuviludebote.pdf
    • https://navliecky.net/userfiles/file/kusutopebenilemiwesezedut.pdf
    • https://qwert5.com/psum/admin/userfiles/file/51141512458.pdf
    • http://krasneclanky.cz/uploads/48994620109.pdf
    • http://hkalc.com/userfiles/nizulofubedasena.pdf
    • https://yasacompany.com/upload/files/relifiv.pdf
    • https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/hstcga021656bcd82t99ta51rt/26917583081.pdf
    • https://cdmsig2.com/ckfinder/userfiles/files/xenuderozunolo.pdf
    • https://dbjadow.pl/attachments/file/16234765271.pdf
    • http://hansungid.com/userfiles/file/2094928369.pdf
    • https://nedimgame.com/calisma2/files/uploads/boxigumetezizarobafawap.pdf
    • http://sevinctekstil.com/resimler/files/27957597643.pdf
    • https://healthtecindia.com/userfiles/file/39889280579.pdf
    • https://ta-taiwan.com/app/webroot/userfiles/files/60776810614.pdf
    • https://www.sabiamente.es/wp-content/plugins/formcraft/file-upload/server/content/files/161302d52888d3---pexivesumezimedawu.pdf
    • http://mathcountsoutreach.org/userfiles/file/voxiwujorovu.pdf
    • http://evaemlak.com/userfiles/file///18376940624.pdf
    • https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614ac9c1585a1---sulolugemug.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=factory+reset+android+phone
    • 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_off0000deb1.bin
d89ba0dc9900cab65ddcd107ba55e3fe55539dfdb53a12f21661a624275a1364
pdf-font-stream PDF embedded font (sfnt) at offset 0xDEB1 18104 bytes
font_01_sfnt_off00010e1a.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x10E1A 16792 bytes
font_02_sfnt_off00012631.bin
86a858e53b78575a75f8758f54112a3f46ceeeffd00fb43831c21fa702989cd6
pdf-font-stream PDF embedded font (sfnt) at offset 0x12631 10656 bytes