Malicious PDF — malware analysis report

Static analysis result for SHA-256 00d6a40db7bcb5ab…

MALICIOUS

PDF

43.1 KB Created: 2021-05-19 20:59:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 4f71d067bfd00f5eaaeff45967f7161f SHA-1: 49f23b5a6afefc070c4fa64343d1b55f4a912a5a SHA-256: 00d6a40db7bcb5abb53be00ae51682ae5e01483e6f034f94efd8fe77c9994080
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 0.9971

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.xyz/app/479516143/minecraft-windows-10-edition-free-with-java-game-hack PDF link annotation
    • https://www.shin.ge/images/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/generator-robux_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/coin-master-free-stuff_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/how-to-get-stuff-that-cost-coins-free-mpe-master_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/roblox-robux-generator_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/how-to-get-free-spins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/free-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/claim-roblox_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/spin-and-coin_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/how-to-hack-roblox-accounts-passwords_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/pokemon-go-gameplay-free-online_GM1094591345.pdfIn PDF document text
    • https://www.shin.ge/images/coin-master-hack-tool-without-verification_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • https://www.shin.ge/images/info-roblox-com-robux_GM431946152.pdfIn PDF document text
    • https://www.shin.ge/images/how-to-get-free-robux-com_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
stream_003_off00004a01.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A01 25464 bytes
SHA-256: f5c9f32b389017f82058a695df645ee3367204be8f492f641aaaf21851d6edff
font_01_sfnt_off000083f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83F3 18972 bytes
SHA-256: 6c20506a37f57d149a2d60f903306920f0d4438cf2101358cedc4e984bc12f18

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