Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd1d309e3451b4c6…

MALICIOUS

PDF

264.1 KB Created: 2021-06-25 20:57:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 32c33cc78238c521168bd648041ac8cb SHA-1: 34844349025c56260194d08e5d6193fb7ff59a16 SHA-256: fd1d309e3451b4c6e283a5cf415857f05bffc809141bd8367d29ba51372e016f
174 Risk Score

Malware Insights

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

This PDF document is classified as malicious, exhibiting characteristics of an advance-fee scam lure. It contains multiple links to external resources, some hosted on compromised WordPress sites, suggesting an attempt to redirect users to malicious content or download further payloads. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9748

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.
  • 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 https://uaqbakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160777a0d85ad0---78328497049.pdf
    • http://pi-consulting.ch/download/89394397063.pdf
    • http://www.mediacomriccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/160abd557a3f8c---tepifuxonafofakexevoke.pdf
    • https://nikosdimos.gr/userfiles/file/turoxo.pdf
    • https://wpsqld.com.au/wp-content/plugins/super-forms/uploads/php/files/20b57db5c8213ac1b31c130e975f56b5/58434023987.pdf
    • http://teechart.com/uploads/images/files/5536550071.pdf
    • http://www.thebetterinsurance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a96a3d344a3---dosofiwujegazojofupu.pdf
    • https://mrmusicfoundation.org/wp-content/plugins/super-forms/uploads/php/files/97tjrj0sph4mhibencfd41ldja/2874034646.pdf
    • http://piau-po21inn.com/CKEdit/upload/files/sesud.pdf
    • http://ourhkg.com/UPFILE/userfiles/files/48436408110.pdf
    • https://extremetour74.ru/wp-content/plugins/super-forms/uploads/php/files/d0d2542b39da0700458cd481d0855036/28361199705.pdf
    • http://botanicgardenscafe.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16084a40d189ad---2137361355.pdf
    • http://hongdacable.com/d/files/nodipuxeli.pdf
    • http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/160960462002db---fezovam.pdf
    • https://adsbudget.net/userfiles/file/49298883080.pdf
    • http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/39f9dec2c0423d8f467978f3eaf84d8f/zelegadefonuru.pdf
    • http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071c80d06655---76205079258.pdf
    • https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/a42j5ul4kh9qvkvj12rpola0cu/fukopifefeleja.pdf
    • https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609ee74942696---kupemegite.pdf
    • http://omonetach.pl/foto/ilustracje/file/36593344906.pdf
    • http://www.jindatunnel.com/up_files/file/legufadumave.pdf
    • https://avigailpekelman.com/sites/default/files/file/zizesibi.pdf
    • http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/1606f6825600aa---babuvivog.pdf
    • http://lotuscourtpune.com/wp-content/plugins/super-forms/uploads/php/files/v3lfcp5c68pqlu8ru30bpkgk64/55335089036.pdf
    • http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/95f83480537d3d4686d459fda3edc842/11479849818.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=dghs+technical+manual+transfusion+medicine+pdf
    • 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_off0003aec0.bin
56368e918fba9ddf480dae1f0b12f62c320ec5ceabac75316129aa1b1650d640
pdf-font-stream PDF embedded font (sfnt) at offset 0x3AEC0 18432 bytes
font_01_sfnt_off0003dfc1.bin
c930538bc6fd83d7065414bb8ab77961f71856f58a1e8253fea7d7d6ccd9dea7
pdf-font-stream PDF embedded font (sfnt) at offset 0x3DFC1 11168 bytes
font_02_sfnt_off0003f979.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x3F979 16792 bytes