Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2da204da038d0c0…

MALICIOUS

PDF

73.0 KB Created: 2021-10-04 09:59:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: f9eb70d5b1afa9cc51e35890fc0c70ab SHA-1: 76b81fd4ff3d8d8e94eeeafdd22bbb990a39fdc9 SHA-256: e2da204da038d0c0fe5593cc11ec94129e72e28824c99c7795f77e1dd0da9763
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 external URLs, with one specifically identified as a potential phishing lure related to betting tips. The PDF structure and embedded links suggest it is designed to redirect users to malicious websites, likely for phishing or to download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9963

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 https://pixomot.ru/uplcv?utm_term=real+bet+vip+betting+tips+apk PDF link annotation
    • http://mrpokedb.com/uploads/files/figalugatubiguxogalovesun.pdfIn PDF document text
    • https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/161375565735fc---4626756918.pdfIn PDF document text
    • http://mrcookie.tw/upload/editor/file/290505067919.pdfIn PDF document text
    • http://speckletrack.com/update/editor/file/najudivejujafi.pdfIn PDF document text
    • http://zsdbiopharm.com/upload/files/kexapuk.pdfIn PDF document text
    • http://www.wm-meyer.de/meyer/admin/editor/ckfinder/userfiles/files/45162725829.pdfIn PDF document text
    • http://ccsl.asia/files/tigufuf.pdfIn PDF document text
    • https://surupaceanu.ro/ckfinder/userfiles/files/85080350805.pdfIn PDF document text
    • http://katyababash.com/images/uploads/file/gedapuli.pdfIn PDF document text
    • https://apagar.cinemadossertoes.com/ckfinder/files/jabanabuzali.pdfIn PDF document text
    • http://scea.edu.mn/ckfinder/userfiles/files/83200850326.pdfIn PDF document text
    • http://xn--66-6kc8bfmkmjd.xn--p1ai/admin/ckfinder/userfiles/files/sovuwebinagi.pdfIn PDF document text
    • https://un7un9b3rl1pa7-99.com/contents/files/kipafixipoganupe.pdfIn PDF document text
    • https://tectrongim.com/uploads/file/81883245664.pdfIn PDF document text
    • http://vina2002.com/uploads/files/duripoba.pdfIn PDF document text
    • http://tyextractor.com/d/files/pimurezixejufukekepidigu.pdfIn PDF document text
    • http://hgbs.de/userfiles/file/bipanaxajisi.pdfIn PDF document text
    • https://x-leather.com/radsportfiles/file/94797804713.pdfIn PDF document text
    • http://pvvc.cz/files/xideke.pdfIn PDF document text
    • https://kham.vn/userfiles/file/kojoga.pdfIn PDF document text
    • http://neodev.space/wp-content/plugins/formcraft/file-upload/server/content/files/161595ed31c268---raxusosekorenesaxono.pdfIn PDF document text
    • http://thebankcardservice.com/uploads/files/90764831932.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_off0000b51b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB51B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000cd32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD32 10548 bytes
SHA-256: 0dd1c9587790f329d9dd8aba44fb0c8aee7d565ed2fdfe5bd58671c1c6478dd2
font_02_sfnt_off0000e52c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE52C 19084 bytes
SHA-256: e6937b53fd3ed8380eccfe4fdbb9ba8b0fe5ad693da2a87893b5805d317ac941

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