Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d21e844e0608d1a…

MALICIOUS

PDF

90.5 KB Created: 2021-02-06 11:55:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: bbaeb13502ba9d304363cf7698b12e93 SHA-1: 626285da0cca1089e1b60610e1c436fc42e2f91e SHA-256: 5d21e844e0608d1a60af35b7a244f8be06746d5d11fb19ac23f72227a4759ce3
104 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of a download button lure and an embedded URL pointing to a phishing site suggests a phishing attack. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed to trick users into downloading further malware or visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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://jacksth.ru/123?utm_term=the+simpsons+tapped+out+hack+old+items PDF link annotation
    • https://cdn.sqhk.co/bifoligi/bkijDL9/mafedu.pdfIn PDF document text
    • https://cdn.sqhk.co/malevevipali/kijjgZN/2__5.pdfIn PDF document text
    • https://cdn.sqhk.co/kabevapixox/gdcwPlp/racing_in_city_hack_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/wejawujagi/ejjvjeK/realistic_driving_school_simulator.pdfIn PDF document text
    • https://cdn.sqhk.co/gabogivoxavi/uijUOZy/average_cost_of_health_insurance.pdfIn PDF document text
    • https://cdn.sqhk.co/pazakazagoz/aVgx7hj/imo_skype_video_call_free_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427821/normal_601da42d4d001.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384046/normal_5febc0983a6fa.pdfIn PDF document text
    • https://cdn.sqhk.co/dedogupazib/e076ifQ/baking_recipes_that_use_heavy_cream.pdfIn PDF document text
    • https://cdn.sqhk.co/titabofasika/jljeieZ/paradise_island_apartments_jacksonville_fl_32256.pdfIn PDF document text
    • https://cdn.sqhk.co/fepexeguma/jeggZjf/beastboyshub_zombie_shooter_game_download_for_android.pdfIn PDF document text
    • https://cdn.sqhk.co/zoxinugokas/jZhfLig/air_hockey_table_kidstuff.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372740/normal_5fed78bc2dd5c.pdfIn PDF document text
    • https://cdn.sqhk.co/ruxuvedije/c6Q8hga/rollerball_pen_kits.pdfIn PDF document text
    • https://cdn.sqhk.co/giboxikewev/dxwkhbP/gavejonu.pdfIn PDF document text
    • https://cdn.sqhk.co/feletitami/biigjTT/stochastic_divergence_trading_strategy.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374852/normal_5fd042bd55d7f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bolovopizonuki/38380524307.pdfIn PDF document text
    • https://s3.amazonaws.com/xoferuzu/buwosatekar.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010a1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A1C 5228 bytes
SHA-256: d3e0cab2304227033f0b47ee102bb2cc7e3797695744a008d48cfd62323ed99d
font_01_sfnt_off00011bb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BB9 13212 bytes
SHA-256: 8e5f35ef52ace8237ffb29488f5e86376ef0ed5f8ae9370bef82dfd21b3afc0b
font_02_sfnt_off00014685.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14685 16352 bytes
SHA-256: a235935b7da1a3e0dfb4386fa22d70075346861adeac55da3f8f322ddd140fe5

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