Malicious PDF — malware analysis report

Static analysis result for SHA-256 11e9cfa53a3626c4…

MALICIOUS

PDF

179.3 KB Created: 2021-06-29 01:35:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: df4fa57cf42823600571c11afe322f0d SHA-1: e3624bd7756dcca33fa0856204abea1f8557d7f5 SHA-256: 11e9cfa53a3626c41b0e745e5c140f888aec2be30e94dd426de420cf9a52838e
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ML classifiers and ClamAV, exhibiting characteristics of an advance-fee scam lure. It contains an external URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. Although no scripts were explicitly extracted, the PDF structure and heuristic firings suggest it is designed to exploit users through deceptive content and potentially deliver a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9906

Heuristics 6

  • 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.
  • 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://cructi.ru/uplcv?utm_term=20+seconds+to+die+unblocked
    • http://growlink.biz/userfiles/file/fojipemaraletim.pdf
    • https://atl-50.com/files/file/78524418898.pdf
    • https://boucherienabli.com/uploads/FCK_files/file/21680693948.pdf
    • http://epoxidice.ro/mm/file/nirazowofusovewitof.pdf
    • http://ne-moloko.ee/wp-content/plugins/super-forms/uploads/php/files/ee5cb6c36fb8595ac4784d02d38609c5/zasubegemenozik.pdf
    • http://kahounova.cz/userfiles/file/diduwosotarekajazovuzu.pdf
    • https://www.myjamaicais.com/wp-content/plugins/super-forms/uploads/php/files/633c9c775dd7f57795b33f60e4a2f025/lewiterabituru.pdf
    • https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609de9ca2e691---lukivopafokanigaxavam.pdf
    • http://studiolorenzino.eu/userfiles/files/60153772279.pdf
    • https://www.tangelo.no/wp-content/plugins/formcraft/file-upload/server/content/files/1607a5852ab8f7---rarizidokopig.pdf
    • https://camile.vn/wp-content/plugins/super-forms/uploads/php/files/0br910pcg4tujal4cppoch6hlr/lirote.pdf
    • http://ahlhy.com/uploads/file/070621537538.pdf
    • https://afd.me.uk/wp-content/plugins/super-forms/uploads/php/files/p4bjfibabblekm337avmtep1o4/juvepuvile.pdf
    • https://www.kadeavenue.com/wp-content/plugins/super-forms/uploads/php/files/b3795fc898387fe4f1f02ed0f0f5ef0c/riwijipemiji.pdf
    • https://tatsolarlight.com/uploads/files/21895688753.pdf
    • https://service-panev.com/userfiles/97426228145.pdf
    • https://www.grecosalesinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cd8583934fa---51049632498.pdf
    • https://earthideasawnings.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607966b81ec8e---79865132408.pdf
    • http://alnoorcity.com/userfiles/file/gujinoro.pdf
    • https://aonetreks.com/uploads/file/ragubetokafilodugeda.pdf
    • http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160a07d5364c78---ninopegojexeda.pdf
    • https://ehblending.com/wp-content/plugins/super-forms/uploads/php/files/c38a4e3e061f4436aaafd582847440d7/metaw.pdf
    • http://www.alfainstal.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160b55e545694a---75204969089.pdf
    • https://k2salight.com/wp-content/plugins/super-forms/uploads/php/files/c23f11928bfffb50d8b390c7b8a649bd/puwat.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_off00025968.bin
e2ef916c8d96dc450fdef7cdf91d960d17bb57eb85fba1037f2431c9c8df204f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25968 10580 bytes
font_01_sfnt_off000271b5.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x271B5 16792 bytes
font_02_sfnt_off000289c7.bin
7feae160aed24e57bcc37754ef1d828de815c33159e8a77fa11ab3593a9dfc63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x289C7 21212 bytes

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