Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f7fabc55016dfba…

MALICIOUS

PDF

80.9 KB Created: 2021-02-16 06:17:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 9fa301e101afbdc6aae3e4eef26b496d SHA-1: 25d06c1de4d1b03bbeae62c10f7450e90299ea90 SHA-256: 9f7fabc55016dfbaf4d7731fe6b6d8b99f05ebfa5021c5994e5dbdaa7c59d697
116 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier, with a high-risk score. Heuristics indicate it contains an external URI and a callback phishing lure, suggesting a scam or phishing attempt. The document body, though heavily obfuscated, contains text related to 'free rp in league of legends 2021', aligning with the lure to visit the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/strik?utm_term=how+to+get+free+rp+in+league+of+legends+2021 PDF link annotation
    • http://penaxuwilamufo.iblogger.org/ranupuvaj.pdfIn PDF document text
    • http://gedawuxofawu.iblogger.org/dogeketabaduziroke.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481161/normal_601c630e3ee88.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403273/normal_5fe4d8f927ca6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477651/normal_60208492491df.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dimizisunope.epizy.com/74746707288.pdfIn PDF document text
    • http://bupozefi.epizy.com/game_assassin_creed_identity_apkpure.pdfIn PDF document text
    • https://s3.amazonaws.com/nelizenejakarug/cute_girly_wallpaper.pdfIn PDF document text
    • https://s3.amazonaws.com/gewisetug/39884734061.pdfIn PDF document text
    • https://s3.amazonaws.com/wezukep/pokemon_battle_dimension_episodes.pdfIn PDF document text
    • http://xemubuso.epizy.com/bittorrent_pro_latest_version_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/nosepevozux/muzam.pdfIn PDF document text
    • https://s3.amazonaws.com/vavabi/deed_of_appointment_of_new_trustee_form.pdfIn PDF document text
    • https://s3.amazonaws.com/rujimidujek/logezoliv.pdfIn PDF document text
    • http://dupikupujetilu.rf.gd/appvalley_2._0_ios.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fb8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB8C 5588 bytes
SHA-256: 22597599afb8db764a577bb62707a650551f37975208a1e00ad99367ad3253b8
font_01_sfnt_off00010ebb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EBB 11616 bytes
SHA-256: ed3030fe90bef7e31431a5e5726515d06d88d7c4353dddef3f114caacb572b48

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