Malicious PDF — malware analysis report

Static analysis result for SHA-256 43307d1524c73c31…

MALICIOUS

PDF

33.8 KB Created: 2021-07-03 12:50:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 0a824271c2619465c8aee80f2b084ba9 SHA-1: d0baa6302ad17dc38d2324b65b2a8151a6ceb222 SHA-256: 43307d1524c73c31325919f0aa5c562a6f7d7447e84bac1163455c0ed81d2f92
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.tw/app/479516143/free-minecraft-addons-game-hack PDF link annotation
    • http://sttlets.education/senayan/repository/hack-tiktok-fans-free_GM835599320.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-robux-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/roblox-games-free-download-for-android_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-shields-coin-master_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/obby-that-gives-you-free-robux_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/getrobux-come_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/how-to-download-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/coin-master-free-shield_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-robux-games-obby_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/robux-hack-proof_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/fart-attack-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/can-you-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/descargar-menu-de-hacks-para-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/roblox-hack-apk_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/robux-hack_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/coin-master-hack-spin-ios_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/roblox-hack-peoples_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-robux-for-roblox-generator-no-human-vertification_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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_off00003041.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3041 22300 bytes
SHA-256: 7ca1b2600f2a2a745f17fe937eb74e0484abc1f63efaa0fb5dc7cd1ba43c1482
font_01_sfnt_off000061dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61DC 18172 bytes
SHA-256: f2b502c1f7fdc586459d018faaa780361b03439c740158c4dfbe15d97db793b4

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