Malicious PDF — malware analysis report

Static analysis result for SHA-256 580fbd638422ff21…

MALICIOUS

PDF

397.7 KB Created: 2021-04-30 19:30:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: b1b41af3f9815ad18f436e096b03721f SHA-1: e535551d30a9809c9009c75ad5e9c5debec06cfe SHA-256: 580fbd638422ff21d6305280db1079c2b901c7035742564afde22503beb7705f
104 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9311

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://kuzutuzo.ru/strik?utm_term=star+wars+galaxy+of+heroes+newbie+guide PDF link annotation
    • https://tunuwowidu.weebly.com/uploads/1/3/4/6/134606858/kukisewafujalipupe.pdfIn PDF document text
    • https://botiwugagow.weebly.com/uploads/1/3/1/8/131872238/9e35fced9c485.pdfIn PDF document text
    • https://duwaxitim.weebly.com/uploads/1/3/4/3/134312722/8395939.pdfIn PDF document text
    • https://vawudida.weebly.com/uploads/1/3/4/8/134890241/jeribage.pdfIn PDF document text
    • https://nusikunamapuger.weebly.com/uploads/1/3/0/8/130874430/nojotegimibe_pixenilu_xeledavifixida_wiwuxatopebilag.pdfIn PDF document text
    • http://fatemalitu.iblogger.org/bescherelle_la_conjugaison_12020_verbes.pdfIn PDF document text
    • https://jamakebowixon.weebly.com/uploads/1/3/4/4/134477175/3937015.pdfIn PDF document text
    • http://xuzetekuka.22web.org/2954948093.pdfIn PDF document text
    • https://zorisurirumu.weebly.com/uploads/1/3/4/6/134600588/makedopovetoxekidob.pdfIn PDF document text
    • https://bodupakodekafas.weebly.com/uploads/1/3/2/6/132680796/a9063a5ee4b0.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/jovekus/calculator_for_windows_8._1_64_bit.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibebulosaxug/ketogenic_diet_for_beginners.pdfIn PDF document text
    • https://5a8aee2d-3d68-4c09-98ed-743c9c56d6fd.filesusr.com/ugd/460efe_f1a73dac9fa24bffbd06b85efa0dbe22.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/wixatax/50_cent_mp4_songs_free.pdfIn PDF document text
    • https://s3.amazonaws.com/nonipesikiri/jazuvibovizuxalosibapa.pdfIn PDF document text
    • https://02796127-04ec-4c85-b270-c6f7310ebb18.filesusr.com/ugd/ce0e6d_ad049abd2cb643ffac66e790d3ce6448.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/fokapikow/chemistry_elements_chart.pdfIn PDF document text
    • https://74bb8966-1fc2-43cb-a641-24c20f380d28.filesusr.com/ugd/84c7b5_f9b92c716fee43aca817610024c31bfc.pdf?index=trueIn PDF document text
    • https://5fa60de5-32ab-41ac-ba65-77330e21e623.filesusr.com/ugd/2e16aa_e2810e11f38744a98d049af74af6f6c7.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/ligole/book_of_enoch_online.pdfIn PDF document text
    • http://vazavaxajude.rf.gd/joxurodemusadetigifuvimej.pdfIn PDF document text
    • https://s3.amazonaws.com/jotogorurekuro/philips_juicer_hr1861_user_manual.pdfIn PDF document text
    • https://d1b6b380-f15b-462b-86b5-0b089ba7d90d.filesusr.com/ugd/f99a33_61a263e9769040ae80b5d98063929f00.pdf?index=trueIn 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_off00057bb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57BB2 22740 bytes
SHA-256: d64f65f2b7bb62f5203a448203c754004d25cf1a9eccb2041d8a8ccfd753c4d2
font_01_sfnt_off0005c490.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C490 5676 bytes
SHA-256: 4b99209a7fa142e5d41ae196a3dcc3bed789b91472f660e11883d5aca7a22269
font_02_sfnt_off0005d7ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D7ED 19320 bytes
SHA-256: a617ea0d7614ccdcd830406185bb621b803620133325d5f2e68a824101812d10
font_03_sfnt_off000610f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x610F8 16252 bytes
SHA-256: 05bb007068516c24842d7f4862c39c4549e4b503da32a1401d1b9dfedd44a307

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