Malicious PDF — malware analysis report

Static analysis result for SHA-256 d030238a201c6daa…

MALICIOUS

PDF

82.4 KB Created: 2021-09-20 05:55:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: a576a1420edca4fcc1a65b41eb6ea020 SHA-1: bda2b8135238941b84640de03bbc9684981e8beb SHA-256: d030238a201c6daa10e1d32c74ab9f83b91fd0615ef6ce397dd144fbafe7e422
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The 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 uploads, suggesting an attempt to distribute fraudulent content. The document's structure and heuristic firings strongly indicate a phishing or scam lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://aaaexpressac.com/userfiles/file/webosugibip.pdf
    • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/duniwikemaluver.pdf
    • https://maconlux.ovh/userfiles/files/pokeruk.pdf
    • http://goksirkrupskimlyn.pl/img/upload/files/sumikutosepogotedowapi.pdf
    • https://hafa-verein.de/wp-content/plugins/super-forms/uploads/php/files/5c2e9109e7ca1b7109979d743de4ebd2/89111347533.pdf
    • https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/161389c4ade76f---58132370017.pdf
    • http://tungalag.mn/userfiles/files/xasejeviw.pdf
    • http://www.sport-konyv.hu/userfiles/file/81958280142.pdf
    • http://dotacjedlaoze.pl/userfiles/file/maragiziguwawubogevutivam.pdf
    • http://3colorjazz.com/fckeditor/userfiles/image/81926849995.pdf
    • http://moscowfashion.net/content/xuploadimages/file/34154993198.pdf
    • https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/b26422a442998bfbb3217743b1295aa6/sunumujovorapew.pdf
    • http://nguyenphat.com/public/default/ckeditor/files/19436481887.pdf
    • https://bdlvn.com/steel/upload/files/ginego.pdf
    • https://precisionautoandac.com/wp-content/plugins/super-forms/uploads/php/files/e5ec099ecb00d3c9b2cc0bb8e199d6d8/defalebo.pdf
    • https://mami-m.com/Uploads/userfiles/files/bovomilameferixonatom.pdf
    • http://weilandensemble.nl/ckfinder/userfiles/files/sowakalaloliro.pdf
    • http://faizleathergloves.com/userfiles/files/rezavaboxinodov.pdf
    • http://maradonasalud.com.ar/ckeditor/ckfinder/userfiles/files/17249539677.pdf
    • http://sinosteelcode.com/filespath/files/20210919101852.pdf
    • https://ever-progress.com/upload/files/9168224480.pdf
    • https://hophamthaibinh.com/upload/files/87166722683.pdf
    • http://aldo-ins.com/userfiles/file/77233689718.pdf
    • http://agro-partner.com/Image/files/45201419186.pdf
    • http://marta-galan.com/files/varios/file/24381312643.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=how+do+i+send+an+email+on+my+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_off0000dae2.bin
30dbd6027804426cd3b59b42e82570b5c9ab4dbe15d38f29defc1d731881be06
pdf-font-stream PDF embedded font (sfnt) at offset 0xDAE2 10748 bytes
font_01_sfnt_off0000f35d.bin
41652313e887617b50342b19ec1cf4c12e149483bd664338731ecbbb7d1a2e2a
pdf-font-stream PDF embedded font (sfnt) at offset 0xF35D 18340 bytes
font_02_sfnt_off0001230b.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x1230B 16792 bytes