Malicious PDF — malware analysis report

Static analysis result for SHA-256 5472775c7f708246…

MALICIOUS

PDF

66.5 KB Created: 2021-09-24 16:00:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: 29254a4090fc95f3019bb70362ca340c SHA-1: 1f351428714cb80e84a718e0560bd3620974cf7b SHA-256: 5472775c7f7082463a8104362122b21d43c89852132ed476d327e4b0ddb8aafd
146 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF employs an image-only lure, a common tactic for phishing or malware delivery. It contains numerous external URIs, including one pointing to 'pixomot.ru', suggesting a redirection to a malicious site. The ClamAV detection and ML classifier strongly indicate malicious intent, likely involving the execution of embedded JavaScript to facilitate further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9908

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
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 66 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://pixomot.ru/uplcv?utm_term=different+types+of+bible+translations PDF link annotation
    • http://bassbasement.org/userfiles/file/8714852246.pdfIn PDF document text
    • https://binarbaidrealestate.com/public_html/userfiles/file/38650671719.pdfIn PDF document text
    • https://rusepress.com/uploads/wysiwyg/files/rojapejolulakerimexol.pdfIn PDF document text
    • http://jpind.pl/userfiles/file/lexal.pdfIn PDF document text
    • http://hotelbellevuepalermo.com/userfiles/files/16667539113.pdfIn PDF document text
    • https://sahyadrisevasanstha.in/userfiles/file/53502044510.pdfIn PDF document text
    • http://cn-junsheng.com/upload/file///202191125830656.pdfIn PDF document text
    • http://lrm.mcdonalds.ua/ckfinder/userfiles/files/91128605858.pdfIn PDF document text
    • http://bnblspecialities.com/userfiles/files/panovevibe.pdfIn PDF document text
    • https://ebooksweb.net/files/file/sejejiwenezu.pdfIn PDF document text
    • http://azs-szermierka.pl/zdjecia/fck/file/52969474205.pdfIn PDF document text
    • http://www.emploi.nat.tn/ckeditor/ckfinder/userfiles/files/87136831432.pdfIn PDF document text
    • http://janaturismointegrato.com/uploads/file/6276796699.pdfIn PDF document text
    • https://kolorubursztynu.kolorubursztynu.pl/web/uploads/files/pawiwubonegifud.pdfIn PDF document text
    • http://bilateralmatters.org/userfiles/file/80797491356.pdfIn PDF document text
    • http://dreamsurgeryen.net/ckupload/files/96146260253.pdfIn PDF document text
    • https://gadd-asso.org/userfiles/file/karimuwifixetawemeder.pdfIn PDF document text
    • http://synergienetwork.net/userfiles/file/67152160919.pdfIn PDF document text
    • https://zapret-rf.org/web/img/podborky/files/21924781559.pdfIn PDF document text
    • http://internationalnetworksolutions.net/files/In PDF document text
    • https://newcar-rental.com/uploads/files/202109121805135464.pdfIn PDF document text
    • https://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/911arapblcflj4516fn57tnood/fubokavedasakagupimaveliv.pdfIn PDF document text
    • https://dauglita.lt/components/com_mijoshop/opencart/image/data/files/36734666548.pdfIn PDF document text
    • https://semangkabiji.com/contents/files/40771704047.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://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_off0000ad5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD5F 14160 bytes
SHA-256: e1cc436948071929db0280d2b128d142babbcea94fc4e02dada00769feb6e075
font_01_sfnt_off0000d09f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD09F 10608 bytes
SHA-256: bae4659ca7f6700576873ec1f6c837070b5ac194121889d71d94be8560380eeb
font_02_sfnt_off0000e8d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8D1 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

Open this report in the interactive analyzer, or submit your own file for analysis.