Malicious PDF — malware analysis report

Static analysis result for SHA-256 8bf0ea72b380bc23…

MALICIOUS

PDF

67.4 KB Created: 2021-03-13 20:36:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 87ad994534ef09079b89119644dffdca SHA-1: 43008d0e1633b38b2d9109d71cf2a599c009308f SHA-256: 8bf0ea72b380bc23553c7128fd9a6b7d52bcbadda9c01e1617a185f193278f23
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URI pointing to a suspicious domain, likely intended to trick the user into visiting a malicious site. The document body, though heavily obfuscated, appears to be a garbled attempt to present search-like content, reinforcing the phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://leonvi.ru/strik?utm_term=how+to+use+rug+doctor+on+upholstery PDF link annotation
    • http://wegansit.space/87162033841a3ffr.pdfIn PDF document text
    • https://cdn.sqhk.co/xekemini/SgigiHU/10593124877.pdfIn PDF document text
    • https://cdn.sqhk.co/ketofebem/TgMjeYD/68599229077.pdfIn PDF document text
    • http://topfrag.rip/easy_guitar_songs_with_2_or_3_chordstxg2w.pdfIn PDF document text
    • https://cdn.sqhk.co/zezoxomop/eLxgfG1/2490293917.pdfIn PDF document text
    • http://taptopbot.com/dogodob001j7.pdfIn PDF document text
    • https://cdn.sqhk.co/roxirali/gc1ifdv/nonijuvodolixametatofezu.pdfIn PDF document text
    • https://cdn.sqhk.co/zoturisa/gghBIij/kuzidovageka.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/baxunaf/benefits_of_quitting_smoking_timeline.pdfIn PDF document text
    • https://s3.amazonaws.com/widofafane/21967206039.pdfIn PDF document text
    • https://s3.amazonaws.com/vuzotisenixava/68768206818.pdfIn PDF document text
    • https://s3.amazonaws.com/nelizenejakarug/modal_verbs_upper_intermediate_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/donarepemi/kefupizopawo.pdfIn PDF document text
    • https://s3.amazonaws.com/zerejibixupav/aerobic_exercise_weight_loss_video.pdfIn PDF document text
    • https://s3.amazonaws.com/kisagoz/50483715594.pdfIn PDF document text
    • https://s3.amazonaws.com/voropa/solidworks_sheet_metal_tutorial_2019.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e7b1547b-48bb-407a-b3a2-ab443007c751/pupare.pdfIn PDF document text
    • https://s3.amazonaws.com/farowug/capone_n_noreaga_the_war_report_blogspot.pdfIn PDF document text
    • https://s3.amazonaws.com/sasufufa/wexovowagofezilakisis.pdfIn PDF document text
    • https://s3.amazonaws.com/mupukesunobaga/academic_cv_template_overleaf.pdfIn PDF document text
    • https://s3.amazonaws.com/lorerexeg/kesaxozanesewegutij.pdfIn PDF document text
    • https://s3.amazonaws.com/rojalexipokadaz/regadokenelowu.pdfIn PDF document text
    • https://s3.amazonaws.com/wujodibu/motabafukon.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c593dcd1-dfa4-4e09-853e-17eed98a8262/nifaginolunevexa.pdfIn PDF document text
    • https://s3.amazonaws.com/dazovosugev/narasimha_naidu_cinema_songs.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

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_off0000c3b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3B7 5116 bytes
SHA-256: 82bb8036334519e8168f9aac9cb77ec6a0c3617718319102617ca47383cf0d0a
font_01_sfnt_off0000d526.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD526 8640 bytes
SHA-256: eeda4f48486783816bb03f97a6da58879b25bf914ad14115128182d8d7839677
font_02_sfnt_off0000f298.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF298 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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