Malicious PDF — malware analysis report

Static analysis result for SHA-256 06ae04f8f998c63d…

MALICIOUS

PDF

83.5 KB Created: 2021-09-16 11:01:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: 9de22e3a0391e15c1465c69caf6fb903 SHA-1: 46c5742fa26914a15c2ab39d16bd80903a34f6c2 SHA-256: 06ae04f8f998c63d96c41d94a8ed25651805385e619bf1fe8daab491d29ef3d8
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, with one specifically identified as part of a link farm designed to redirect users to potentially harmful content. The PDF structure and embedded links suggest it is used as a lure, likely for phishing or to download further malicious payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 https://ketchas.ru/uplcv?utm_term=gta+online+obey+tailgater PDF link annotation
    • https://worldmedglobal.com/userfiles/files/fowufuzazasebarew.pdfIn PDF document text
    • https://aletihad-group.com/userfiles/files/34878783160.pdfIn PDF document text
    • http://dichvutheapec.com/upload/FCK/file/68759792581.pdfIn PDF document text
    • https://sadhankendra.org/erc/media/papadixetubulasedina.pdfIn PDF document text
    • https://humanistbeauty.com/wp-content/plugins/super-forms/uploads/php/files/bchep1kscscarep4rabpaf58m8/jemidefakuviximow.pdfIn PDF document text
    • http://alhambra.kopanramen.com/uploads/files/62475811812.pdfIn PDF document text
    • https://edu-mate.kr/_UploadFile/Images/file/gobojemowomozo.pdfIn PDF document text
    • http://violetstudio.in/userfiles/file/belexijubipu.pdfIn PDF document text
    • https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/161422a8d5b4c9---mapetixowubij.pdfIn PDF document text
    • http://022-web.cn/uploadfile/file/20210911052940872.pdfIn PDF document text
    • http://obasekiestates.com/UserFiles/file/balevafododadurizat.pdfIn PDF document text
    • http://jingyilin.org/uploads/file/78720464572.pdfIn PDF document text
    • https://subarini.ro/mm/file/goxuvofuzokitedub.pdfIn PDF document text
    • http://dentalcenterstudio.it/userfiles/files/52119158681.pdfIn PDF document text
    • http://ks-system.co.uk/ckfinder/userfiles/files/15971884153.pdfIn PDF document text
    • http://ayrh.internet-match.com/upload/files/62690258081.pdfIn PDF document text
    • https://gitedu.in/ckfinder/userfiles/files/detaxivosilamugujutifubox.pdfIn PDF document text
    • http://bsp-oblspl.org/ckfinder/userfiles/files/gumixilogubefibajuzewexos.pdfIn PDF document text
    • http://obchodsezlatem.cz/upload/files/virovaxitalukemev.pdfIn PDF document text
    • http://packamate.com/userfiles/45439572211.pdfIn PDF document text
    • https://bepxuyenviet.com/upload/files/jukapadijedex.pdfIn PDF document text
    • http://sung1.com/upload/files/99819852475.pdfIn PDF document text
    • https://ekinyalitim.com/depo/sayfaresim/file/samiridovufopatujizomu.pdfIn PDF document text
    • https://simplehome.ro/ckfinder/userfiles/files/33114862571.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_off0000de17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE17 10408 bytes
SHA-256: 71ac05cda574167e49645138a333eb02a243b081e205e561ccdddf8dab4f6bc2
font_01_sfnt_off0000f5d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5D1 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00010de3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DE3 19052 bytes
SHA-256: 855b1656e7a3cf9fa358c9cf0171b82e3521fb5511f89200f79937cce3fc6491

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