Malicious PDF — malware analysis report

Static analysis result for SHA-256 eabdf31825a2e756…

MALICIOUS

PDF

35.0 KB Created: 2021-06-26 15:54:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 0c537c1e41c551a46429ec3e1710bb26 SHA-1: ab66037ea824dbb923d461372868fb52f0697e48 SHA-256: eabdf31825a2e7564db300787e56ed891cf9c7385cb73203e2c59bb6a46e9481
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. It uses a callback-phone (TOAD) lure. The file routes users through malicious redirector infrastructure and 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 0.9980

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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.
  • 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
  • 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 http://netcdn.co/app/431946152/free-robux-legit-no-virus-click-here-game-hack PDF link annotation
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/minecraft-xbox-360-free-download-code_GM479516143.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/minecraft-hax-download-no-virus_GM479516143.pdfIn PDF document text
    • https://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/can-i-have-robux_GM431946152.pdfIn PDF document text
    • https://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/roblox-hack-download_GM431946152.pdfIn PDF document text
    • https://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/free-coin-master-spin-daily-link_GM406889139.pdfIn PDF document text
    • https://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-no-survey-not-clickbait_GM431946152.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/wwe-backpack-roblox-free_GM431946152.pdfIn PDF document text
    • https://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/get-free-cards-coin-master_GM406889139.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/how-to-get-followers-on-tiktok-for-free_GM835599320.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/roblox-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/haktuts-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/how-to-hack-ninja-legends-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/minecraft-free-download-iphone_GM479516143.pdfIn PDF document text
    • https://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/free-coins_GM406889139.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/minecraft-pe-free_GM479516143.pdfIn PDF document text
    • https://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/master-free-spin_GM406889139.pdfIn PDF document text
    • https://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/need-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003186.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3186 22200 bytes
SHA-256: baedc83eca2f696ba5b6cb58d2e508cc1277b689a36e504374b52216178981a0
font_01_sfnt_off0000630c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x630C 19316 bytes
SHA-256: a1199420b99def05ee35b4adfb6a186860c562780105834b568c07e418de1c29

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