Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d02158ed7dcc0a6…

MALICIOUS

PDF

71.2 KB Created: 2021-09-26 05:45:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: 926a50262aac2ab69ddae65353b63b91 SHA-1: f90507acfb68684d39d2ca39bb8a97cd1dc8a0ed SHA-256: 0d02158ed7dcc0a66a0718fe945af6f9d64638dfa999159fc0b5e02382e7400d
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs that lead to disposable domains, suggesting a link farm designed to redirect users to potentially harmful content. The presence of these URLs and the overall structure indicate an attempt to trick users into downloading files under the guise of game downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9950

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://tanriovermensucat.com/uploads/genel/files/56237590793.pdf In PDF document text
    • https://aymsoft.us/aym_image/files/61636476843.pdfIn PDF document text
    • http://toanlinh.vn/upload/files/40904227437.pdfIn PDF document text
    • https://designmaster.in/scgtest/eec-new/codelibrary/ckeditor/ckfinder/userfiles/files/zosukosafu.pdfIn PDF document text
    • http://dotbamboo.com/file_media/file_image/file/mipajimowopurovodesawe.pdfIn PDF document text
    • https://dmshospital.com/mm_engg/files/29266295703.pdfIn PDF document text
    • http://excitechem.com/userfiles/file/11999856288.pdfIn PDF document text
    • https://claudiodituri.it/uploads/99557763284.pdfIn PDF document text
    • http://globalfeedindustry.com/upload/files/razise.pdfIn PDF document text
    • http://kvarkeno56.ru/userfiles/file/kunitiw.pdfIn PDF document text
    • https://www.shipgo17.com/plugin/ckeditor/ckfinder/userfiles/files/23620491903.pdfIn PDF document text
    • http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16142e7c92005f---pezutegopu.pdfIn PDF document text
    • http://softtox.pl/new/userfiles/file/putes.pdfIn PDF document text
    • https://nvsrolko.org/ckfinder/userfiles/files/3194882586.pdfIn PDF document text
    • https://finliz.lt/i/File/45380640120.pdfIn PDF document text
    • http://hamyarsanatco.com/ckfinder/userfiles/files/vanorilomowudexiga.pdfIn PDF document text
    • http://bukharaalpharetta.com/sites/default/files/file/40392851086.pdfIn PDF document text
    • http://ingmarcofaedi.com/userfiles/files/tolelimebowino.pdfIn PDF document text
    • http://effekt-film.de/files/file/97071123272.pdfIn PDF document text
    • https://xn--80aggmy8c6c.net/UserFiles/File/22652511869.pdfIn PDF document text
    • http://proallprint.com/userfiles/files/15432190876.pdfIn PDF document text
    • http://homespakistan.net/magzine/uploadfiles/file/sewozolas.pdfIn PDF document text
    • http://airserbia2009.vs.rs/multimedia/file/12498064209.pdfIn PDF document text
    • http://colegiosantarosa.com/uploads/imagem/file/senidebanufure.pdfIn PDF document text
    • http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/9428db69637c67131b49b08f5444c172/bisamudularezawo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=gta+5+2gb+ram+game+download+androidPDF 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_off0000b106.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB106 16732 bytes
SHA-256: ab3b571580915836742bbcf9e86af3cd12ebcde8d8feacf8f3be946902ac6a92
font_01_sfnt_off0000dbf7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBF7 10944 bytes
SHA-256: 5673e9dac96ec1b09dfec9724f550142f9bbf55e38d7e1496c0290bbb5a3a219
font_02_sfnt_off0000f546.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF546 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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