Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6df2cdf14bae3bc…

MALICIOUS

PDF

92.0 KB Created: 2021-06-29 14:19:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: aa1de25b33639f3824c24accef340bc3 SHA-1: ee5cde26128082816e55db297acbf13c3c56110a SHA-256: e6df2cdf14bae3bccebc04298e7d07147ea54e02f1a14e633b90ce424f43b695
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file is identified as malicious by ML classifiers and ClamAV, exhibiting characteristics of an advance-fee scam. It contains numerous links to external websites, many hosted on compromised or disposable domains, suggesting an attempt to redirect users to malicious content or phishing pages. The document's structure and the presence of multiple URLs indicate a lure designed to trick users into downloading further malicious files or divulging sensitive information.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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 https://irlanc.ru/uplcv?utm_term=consignee+meaning+in+kannada
    • http://alnadaoil.com/userfiles/file/dogulilekipanakufagedodiw.pdf
    • http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/fd40e6b7944b4e489bdbd352300e9845/fozavonomev.pdf
    • http://ahkjt.com/upfile/file/vanepimolofizexuna.pdf
    • http://biotop-zamosc.pl/userfiles/file/74383027725.pdf
    • http://sam-global.info/files/file/raliragubigavana.pdf
    • http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9d5c17978---43560686405.pdf
    • http://drjoecarver.com/clients/49355/File/38138653618.pdf
    • https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/160a764fc3cb48---44803170811.pdf
    • http://agendatourvietnam.com/hinhanh/file/59968656927.pdf
    • http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/160926337dbb0f---zumolawaviverejomukefiram.pdf
    • https://acryl-bg.com/userfiles/file/22261221532.pdf
    • https://www.kalirich.com/wp-content/plugins/super-forms/uploads/php/files/4tap798ct5fodte76ftbit41m0/rewabutetajizoban.pdf
    • https://asiaviews.org/wp-content/plugins/super-forms/uploads/php/files/b5ql7rdpf3eqdm2r936ii96rk2/22578695457.pdf
    • https://minutesnap.com/wp-content/plugins/super-forms/uploads/php/files/eefd1a8e50121614d83eca32b921ec1f/16399260343.pdf
    • https://gresathouse.com/wp-content/plugins/super-forms/uploads/php/files/335e72360f968178cc3c999d645c2530/munilolujirajodoguk.pdf
    • http://internationalnetworksolutions.net/files/29990270543.pdf
    • https://feldmann-spedition.de/pics/userfiles/file/ladikato.pdf
    • https://www.dynasil.com/wp-content/plugins/super-forms/uploads/php/files/a6217f99c14922776c3446fba7dfc85b/zesigirazekixapijixi.pdf
    • https://sancarspune.com/wp-content/plugins/super-forms/uploads/php/files/7768442732d2535b3a8a8f948c2c756c/zokasebupomanuduse.pdf
    • http://theettiares.com/clients/f/f0/f03dfc1790708d0b03c48e9879ef2ea6/File/bafujogabe.pdf
    • https://www.marthatrotts.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160b3c3a70a463---33465385357.pdf
    • http://silmalogistics.com/sitename/app/webroot/uploads/ckuploads/files/66072222288.pdf
    • http://bualuang101.com/backoffice/upload/files/gibiletav.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_off0000fa55.bin
c54c59edd6b7dbfe7fbbb666e35ade27edb7c166667f468ddcbb6f7e1b0ca65c
pdf-font-stream PDF embedded font (sfnt) at offset 0xFA55 21704 bytes
font_01_sfnt_off0001331a.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x1331A 16792 bytes
font_02_sfnt_off00014b31.bin
b4cf4f277d5c6160167bd5e153d9e3d927fd5e2d2eb536645647963888a4fefc
pdf-font-stream PDF embedded font (sfnt) at offset 0x14B31 10468 bytes