Malicious PDF — malware analysis report

Static analysis result for SHA-256 db1f265d52a247c3…

MALICIOUS

PDF

83.2 KB Created: 2021-09-21 12:19:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 006da9cf60638cb6f08772dbb67448ba SHA-1: fb4ad5c1b3f49539424047c8db3489bf2eadc62c SHA-256: db1f265d52a247c362b62dbe4556ca075e68019bddb67df542e6cc9864292a71
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected by ClamAV as Pdf.Phishing.Trojan and flagged by an ML classifier, indicating malicious intent. The PDF contains numerous embedded URLs pointing to various domains, with one heuristic identifying it as a link farm on disposable hosting. While no scripts were explicitly extracted, the PDF structure and the presence of external URIs suggest it's designed to lure users into clicking links that likely lead to phishing sites or malware downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://ropesadventure.com/d/files/mimefonoxisakurazasujo.pdf In PDF document text
    • https://jordan.si/dokumenti/file/subowomafaviragikifa.pdfIn PDF document text
    • https://rajatotogroup3.com/contents/files/lobelazu.pdfIn PDF document text
    • https://atlastoursntravels.com/userfiles/file/95985426947.pdfIn PDF document text
    • http://saltokisport.com/uploads/files/fodezadonidezewuguxazoki.pdfIn PDF document text
    • https://djhelaly.com/wp-content/plugins/super-forms/uploads/php/files/3a62b49aa8ba30cdcfe35e1986df25d8/zugogizulepivirabamipo.pdfIn PDF document text
    • http://premo.at/userfiles/file/buvuruxe.pdfIn PDF document text
    • https://mauspro.net/upload/files/mokizaxapumuwelotuga.pdfIn PDF document text
    • http://ministryofrum.com/memlogos/file/vagubamarewizibekuza.pdfIn PDF document text
    • https://gfwofficial.com/ck_imgs/files/60188335695.pdfIn PDF document text
    • https://costarica4d.com/contents/files/borizelomivojugi.pdfIn PDF document text
    • http://live-net.it/file/rorozo.pdfIn PDF document text
    • https://betalinktech.com/blmedia/file/84417212588.pdfIn PDF document text
    • https://sledovani.gpshlidac.cz/www/userfiles/files/7832365725.pdfIn PDF document text
    • http://888spirits.com/userfiles/file/22625479268.pdfIn PDF document text
    • http://mintaialuminum.com/d/files/miseb.pdfIn PDF document text
    • https://tttinox.com/upload/userfiles/files/rizoseles.pdfIn PDF document text
    • http://uteambio.com/upload/files/bebulemupikikuxiwogalapun.pdfIn PDF document text
    • http://hotelborgodeipoeti.com/userfiles/files/8260502210.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613de0dc19b2c---vobevejopadab.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=kalki+malayalam+movie+torrent+magnetPDF link annotation
    • 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_off0000e0d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0D1 10548 bytes
SHA-256: e47c761edfc47eb93a1a9393ba12e7b578eb44f5267ef3b84e7fdcb3c72a1a7e
font_01_sfnt_off0000f8d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8D3 17764 bytes
SHA-256: 78133febbc1fac117b73d15b9199a3ca993348fd9463ae95929cf6f667e4f6f7
font_02_sfnt_off0001274e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1274E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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