Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fd13d2ff1e58437…

MALICIOUS

PDF

35.4 KB Created: 2021-06-29 04:20:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 1c1504f7e2f33271e679d4481b607c64 SHA-1: 8f3acd3b173215328ec9344c0bf5b5515775b4f8 SHA-256: 2fd13d2ff1e58437fbbc5be2bb4869a0482c4f6d2d9aab1c40f051b5e0d91c48
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-roblox-accounts-2021-with-robux-game-hack PDF link annotation
    • http://wadimor.co.id/media/imagesfiles/tiktok-free-iphone-12_GM835599320.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-hack-a-account-roblox-v3rm_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-royalty-free-music_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/minecraft-116-apk-download_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/100-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/hack-for-roblox-bee-swarm-simulator_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-free-spins-link-blogspot-today_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-use-redstone_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/hack-de-roblox-robux-infinito_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-get-free-robux-scam_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-get-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-hack-xyz_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-hack-roblox-4-free-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/what-is-coin-master-app_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-hack-app_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-new-cards-hack_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-scripts-free_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/rbx-gg-free-robux_GM431946152.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_off00003150.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3150 22332 bytes
SHA-256: 33c3243ff963b6b804eb3dff36af3b1b591f44a575997a6b444db60ce8c1abfc
font_01_sfnt_off00006322.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6322 19780 bytes
SHA-256: a55470c357d6117f87c66cfcc5dd60461d5ad292bd735cfee1ec5bb843310ba7

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