Malicious PDF — malware analysis report

Static analysis result for SHA-256 75fc8f725172ea10…

MALICIOUS

PDF

34.5 KB Created: 2021-06-26 19:15:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 4f88c9b9db4956648adc896e52b7f243 SHA-1: ab61444eae45cf5e0537049f321975d39a040f01 SHA-256: 75fc8f725172ea1081846e54990d95454811dcd7a9e2219265550562763add2b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. 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 4

  • 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.
  • 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/hack-de-robux-100-real-game-hack PDF link annotation
    • https://tnupacktour.com.tw/image/data/files/how-to-hack-a-minecraft-server_GM479516143.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/minecraft-free-reddit_GM479516143.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/coin-master-free-spins--coins-2021_GM406889139.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/free-cartoon-maker-online-roblox_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/coin-master-apk-hack-32_GM406889139.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/free-robux-websites-no-human-verification_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/coin-master-hack-spins-free_GM406889139.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/how-to-earn-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/pubg-uc-key_GM1330123889.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/robux-for-kids_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/hack-coin-master-android_GM406889139.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/roblox-svg-free_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/coin-master-free-coins-and-spins-group_GM406889139.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/free-robux-hack_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/coin-master-cheat-engine-hack_GM406889139.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/coin-master-free-spins-link-2021-april_GM406889139.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/how-to-hack-golden-card-in-coin-master_GM406889139.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ea5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EA5 22672 bytes
SHA-256: 970f645832ceb8a7248d4f3318e1c78c4f432435addc97b55f44e761911ee404
font_01_sfnt_off0000610a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x610A 19244 bytes
SHA-256: 1995656317661203ef13f21518e75fa03361fba3371d0920bb023fa057d8a273

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