Malicious PDF — malware analysis report

Static analysis result for SHA-256 f362bf5f5768a126…

MALICIOUS

PDF

74.3 KB Created: 2021-09-11 01:27:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-27
MD5: acf0a5275def56204dbeb167a80721b7 SHA-1: 56c3ac3bbfd055a51c20690a6044f3afea3cf626 SHA-256: f362bf5f5768a1264340ad45660972e69e333a0330074b71813d182770ea8e73
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous links to external websites, many of which are structured as link farms. One prominent URL, 'https://pixomot.ru/uplcv?utm_term=minecraft+free+install+for+android', suggests a lure for downloading software. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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=minecraft+free+install+for+android PDF link annotation
    • http://xmzhj.com/UserFiles/file/xinidupifoxadevovulituzu.pdfIn PDF document text
    • http://debten.net/UserFiles/File/dunifalivuda.pdfIn PDF document text
    • https://99shayari.in/userfiles/files/1683052001.pdfIn PDF document text
    • http://china-engine.net/ckfinder/userfiles/files/dilanediwalegakigegeti.pdfIn PDF document text
    • https://szekszardportal.hu/userfiles/file/biwobalajajufibewurekogo.pdfIn PDF document text
    • https://associazionemusicaviva.it/uploads/file/juletebebuzokogela.pdfIn PDF document text
    • https://sportuna.be/ckfinder/userfiles/files/49997994820.pdfIn PDF document text
    • https://vieclamday.com/userfiles/file/xepadifepedu.pdfIn PDF document text
    • http://haitrungkim.vn/uploads/userfiles/file/16572553607.pdfIn PDF document text
    • http://galenbio.com/images/upload/file/vokuxogojolelusozaxi.pdfIn PDF document text
    • http://xsteelstock.com/d/files/94614324977.pdfIn PDF document text
    • http://jszl-rolls.com/filespath/files/20210905161424.pdfIn PDF document text
    • http://polishingmarblefloor.it/userfiles/files/43334246058.pdfIn PDF document text
    • http://www.teeintact.com/admin/fckeditor/editor/filemanager/connectors/php/img/file/47470451226.pdfIn PDF document text
    • http://dakmoto.cz/obrazky/file/92401831051.pdfIn PDF document text
    • http://slxiang.com/v15/Upload/file/20219817711129.pdfIn PDF document text
    • http://kondicionery-pushkino.ru/upload_picture/file/xurebaliwidazuzukusepe.pdfIn PDF document text
    • http://www.farmaciabergua.com/userfiles/files/visibebire.pdfIn PDF document text
    • http://inter-travel.hu/_user/file/45170751242.pdfIn PDF document text
    • https://pustelnik-budownictwo.pl/ckfinder/userfiles/files/darosonilobabojafoba.pdfIn PDF document text
    • http://xszhuhai.com/uploadfiles/files/levegel.pdfIn PDF document text
    • https://gbp.dropship-online.com/userfiles/files/vuxonetasoluwajenu.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c148.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC148 16628 bytes
SHA-256: f8eeb2f95625b3e3576da8e8bb1ecdd65fdda19f6a108bee53a84ad53a88dead
font_01_sfnt_off0000ebb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBB1 10460 bytes
SHA-256: 95ae2cb615247bfa405b20fd337a0a9c8a8aed8f53673a2d262a4c68425ec8d2
font_02_sfnt_off0001038e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1038E 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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