Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b869bd9962085d6…

MALICIOUS

PDF

83.6 KB Created: 2021-02-12 22:00:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 9ee18cf733fe5bc327309684523ef387 SHA-1: 6effc0aafb8529428e147cfdaeb1d1da25afad35 SHA-256: 8b869bd9962085d6c21389aa719881b1d3f1ad794f3c2d681e345c7f93558c84
104 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF document contains an embedded URI pointing to 'baarspo.ru', which is flagged as a potential phishing or malware distribution site. Heuristics indicate the use of urgency lures, suggesting a phishing attempt. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect the user to the malicious URL for further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://baarspo.ru/wix?keyword=beautiful+widgets+pro+apk+2020 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4479710/normal_5fe6433f0033d.pdfIn PDF document text
    • http://roduvogixaxo.66ghz.com/cateye_micro_wireless_manual_cc-_mc100w.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447278/normal_601ac48cbe7ac.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369323/normal_5ff97d7d397fe.pdfIn PDF document text
    • http://manetebanax.22web.org/60088340141.pdfIn PDF document text
    • http://davavemoj.66ghz.com/sparkle_background_free.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
    • http://pugijomo.epizy.com/icloud_unlocker_zip.pdfIn PDF document text
    • https://s3.amazonaws.com/gotitibekovi/sinaduzijijuge.pdfIn PDF document text
    • https://s3.amazonaws.com/nolarifaforuxop/despicable_me_2_sub_indo.pdfIn PDF document text
    • https://s3.amazonaws.com/pogolo/belufalapogerebis.pdfIn PDF document text
    • https://s3.amazonaws.com/jagux/79790297689.pdfIn PDF document text
    • http://fimogaselan.rf.gd/sazuxutet.pdfIn PDF document text
    • https://s3.amazonaws.com/debamijizozexo/97705099478.pdfIn PDF document text
    • http://madujenorenugax.epizy.com/4528449023.pdfIn PDF document text
    • https://s3.amazonaws.com/lupuvogotog/bogan_2_tamil_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/gupawupigawono/vibotexiw.pdfIn PDF document text
    • https://s3.amazonaws.com/bededuxotulapil/ppt_templates_free_timeline.pdfIn PDF document text
    • https://s3.amazonaws.com/xijilesuzuxo/34581394891.pdfIn PDF document text
    • https://s3.amazonaws.com/setaxilitozuko/ahpra_psychology_registrar_program_progress_report.pdfIn PDF document text
    • https://s3.amazonaws.com/kalanejaxutilif/pijutuxadoveju.pdfIn PDF document text
    • https://s3.amazonaws.com/wolawatin/xovizirelofejow.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_off0000fb43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB43 5464 bytes
SHA-256: 69565d43f915fac11c56958a920fe2d7e0f7b8b132475a2b158797ac6e019a1c
font_01_sfnt_off00010e09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E09 10644 bytes
SHA-256: 22a04b61513e5f5f933d205d9d25a0739596f1bee5797d6c84f2f18109e679cf
font_02_sfnt_off0001326a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1326A 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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