Malicious PDF — malware analysis report

Static analysis result for SHA-256 4488069c470d6b3a…

MALICIOUS

PDF

81.0 KB Created: 2021-02-20 14:47:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 39d7ef89d35fd79f46ad4b3a11b14e67 SHA-1: c0cbb4b29ff1fddca06840d1f017e1fc27f5a42b SHA-256: 4488069c470d6b3ad71cdda8b760871ad30a1c678c0acadc5f81f973d2bd6d44
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains numerous external URIs, many of which are hosted on disposable domains and utilize UTM parameters, suggesting a link farm designed to redirect users to malicious content. The presence of a 'download button' heuristic further supports a phishing or scam-related attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://bologen.ru/123?utm_term=99+names+of+allah+in+urdu+pdf+free+download PDF link annotation
    • http://sunny-web.ru/862712697536kg0y.pdfIn PDF document text
    • http://korsabarca.com/biochar_production_technologyhgqhh.pdfIn PDF document text
    • https://cdn.sqhk.co/gafisasiwu/bhbibtR/84790556662.pdfIn PDF document text
    • http://firstsecu-paypal.com/705047702277yp8k.pdfIn PDF document text
    • http://jigefur.iblogger.org/85138184739.pdfIn PDF document text
    • http://ideaita.fun/aws_essentials_student_guidepap50.pdfIn PDF document text
    • https://cdn.sqhk.co/rikopekela/aBQhdx7/idle_car_clicker_game_hack_apk.pdfIn PDF document text
    • http://yoga-italy.space/722388962i5jmz.pdfIn PDF document text
    • https://cdn.sqhk.co/lolumebitana/DBhjhh0/best_target_archery_arrows.pdfIn PDF document text
    • https://cdn.sqhk.co/tiwopaperuv/gdhalhc/reset_sprint_drive_password.pdfIn PDF document text
    • http://reweder.site/lipotguarx.pdfIn PDF document text
    • http://pollsexpert.com/ps4_racing_games_that_use_steering_wheeli2c0l.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/rudelazifizuvo/borrowing_base_worksheet.pdfIn PDF document text
    • http://xegunapajom.epizy.com/rujaguzeziguwu.pdfIn PDF document text
    • http://vaviweposaroku.rf.gd/baixar_musicas_mp3_gratis_para_celular_iphone.pdfIn PDF document text
    • https://s3.amazonaws.com/jezaxojipevu/65803944616.pdfIn PDF document text
    • https://s3.amazonaws.com/tufujifinobiro/49402610688.pdfIn PDF document text
    • http://xuxidiso.epizy.com/39918958436.pdfIn PDF document text
    • https://s3.amazonaws.com/wisuw/84283728485.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://scripts.sil.org/OFLIn 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dae5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAE5 5236 bytes
SHA-256: 6a97325e26c612d04c2c229a0b4dc310573f1353293910f79d127b93abf095ec
font_01_sfnt_off0000ec81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC81 10348 bytes
SHA-256: 654d18043bbc0634b48e27d4eae0d9e2b133d7982a394acecc90c220b05e3782
font_02_sfnt_off0001100c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1100C 16880 bytes
SHA-256: 7d7e6798569c1cb05b0b90b20325ca23c511c1b25506c1ad0dc1b746b5e40a30
font_03_sfnt_off000127d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x127D4 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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