Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1ccd4e783829d6d…

MALICIOUS

PDF

90.2 KB Created: 2021-08-01 03:08:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-24
MD5: c25adf3bf9323695c94aa4e441adc03a SHA-1: fd4ee029bb5def46d0727862d843d2d633b97d25 SHA-256: e1ccd4e783829d6d020e09dd63c631f62c9e309f43fa659f43869ebdb511afb8
156 Risk Score

Malware Insights

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

This PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a phishing or malware distribution attempt. It contains numerous links, many pointing to compromised WordPress sites or disposable hosting, disguised as a movie download. The primary attack pattern involves luring users to these malicious URLs, likely to host further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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
  • 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://artpolinakuzina.ru/pict/file/dafajexinu.pdf In PDF document text
    • https://www.alertgy.com/wp-content/plugins/super-forms/uploads/php/files/7a44d7f99a725a832a9b0fb9e2fe5fae/3037477892.pdfIn PDF document text
    • https://noble-worldwide.com/wp-content/plugins/super-forms/uploads/php/files/af85382d03f5f0cc72a3b75d27303cde/49895602821.pdfIn PDF document text
    • https://cafesca.com/ckfinder/userfiles/files/79344034187.pdfIn PDF document text
    • http://jubileejec.com/userfiles/files/72195564989.pdfIn PDF document text
    • https://fallsplat.se/file/befipenabokedifef.pdfIn PDF document text
    • https://dermo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5531c030b8---47757271620.pdfIn PDF document text
    • http://puppies-4u.com/clients/e/e7/e7f09595da74c05d2059c741134300d2/File/6175911400.pdfIn PDF document text
    • https://lokmangal.co.in/wp-content/plugins/super-forms/uploads/php/files/2884e148f52835f374185c77b37c8975/jimadorizuvaniniroxu.pdfIn PDF document text
    • http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16098f72000432---82670902362.pdfIn PDF document text
    • http://redwoodpwr.com/wp-content/plugins/super-forms/uploads/php/files/ieurkjesbe3i2e3svpo81phvg6/26215543756.pdfIn PDF document text
    • https://laps.pl/userfiles/file/26740032811.pdfIn PDF document text
    • https://athensviptour.com/wp-content/plugins/super-forms/uploads/php/files/69fdbd6a09496bcf18aa677c22fc1a38/88159244014.pdfIn PDF document text
    • https://suprizpin.com/calisma2/files/uploads/sesefadomo.pdfIn PDF document text
    • https://ises.ca/phpsites/vertical_living/uploads/file/3271902147.pdfIn PDF document text
    • http://wildpflanzen-planung.de/file/27923113921.pdfIn PDF document text
    • https://familienbilstrup.dk/userfiles/file/gajuzelakepuvezeji.pdfIn PDF document text
    • https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/88a47a0e897fefe733a846bbde928b2d/40980167012.pdfIn PDF document text
    • https://www.entornopublicitario.com/wp-content/plugins/super-forms/uploads/php/files/f183a7412f35eb32e18adc68a51e4cc3/kupesekoneguvutoxakafez.pdfIn PDF document text
    • http://aksaxena.com/bpms/includes/fckeditor_uploads/userfiles/file/54106639830.pdfIn PDF document text
    • https://aneri12.eu/res/file/23530516628.pdfIn PDF document text
    • https://jagamimpi.com/contents//files/katimifomepizefibefikajur.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=baaghi+movie+mp4+download+2016PDF link annotation
    • https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/a46192e473d909cdfd010565dfa49f49/garasasurupujevulajata.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fccb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCCB 11216 bytes
SHA-256: 749f44fba6ddc1c9dec21858d1d2698025e61ac34000133bad2b62d0b78a2487
font_01_sfnt_off000116c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116C8 16960 bytes
SHA-256: ffbeaec2dc8e7a0c4d65582578006644471cc354943f6102d95100d9c9264451
font_02_sfnt_off000142d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x142D1 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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