Malicious PDF — malware analysis report

Static analysis result for SHA-256 0481019108792719…

MALICIOUS

PDF

46.3 KB Created: 2021-06-09 09:10:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: bc5d7441ec54d0e107316e5af4929f30 SHA-1: 1ff2ede1f2fb1787ec32c3673e9f3b7105c572cc SHA-256: 04810191087927194f42b1383b0a074f9d3726253daff4a0b88cf1e132c9fe5e
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 0.9832

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 https://netcdn.tw/app/431946152/free-vip-server-roblox-build-a-boat-2021-game-hack PDF link annotation
    • http://jdlwealth.com/images/are-there-any-coin-master-hacks-that-actually-work_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/4-tik-tok-free-followers_GM835599320.pdfIn PDF document text
    • http://jdlwealth.com/images/pokemon-go-fest-free_GM1094591345.pdfIn PDF document text
    • http://jdlwealth.com/images/free-robux-link_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/roblox-ghost-simulator-infinite-money-hack_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/free-star-codes-roblox_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/how-to-hack-roblox-accounts-on-phone_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/hack-xp-net-generators-coin-master_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/robux-generator-that-works_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/free-coin-and-spin-for-coin-master_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://jdlwealth.com/images/minecraft-launcher-download-free_GM479516143.pdfIn PDF document text
    • http://jdlwealth.com/images/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • http://jdlwealth.com/images/free-minecraft-capes_GM479516143.pdfIn PDF document text
    • http://jdlwealth.com/images/minecraft-survival-hacks_GM479516143.pdfIn PDF document text
    • http://jdlwealth.com/images/coin-master-shield-hack_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/coin-master-spins-gratis_GM406889139.pdfIn PDF document text
    • http://jdlwealth.com/images/free-cracked-minecraft-server-hosting_GM479516143.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_off000050fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50FC 26860 bytes
SHA-256: bad2907e0e494322ac94fa9e4bec97d4302d4f4bfa3d9dfd2181a742e3c20f0d
font_01_sfnt_off00008eac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EAC 19540 bytes
SHA-256: e8f3a1dc079732b3b2bacc67e5c401361e8a1e1cd1bd5972934256bcdc003e1e