Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2548b9f67146968…

MALICIOUS

PDF

35.8 KB Created: 2021-06-25 05:07:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 2edfdfb34cce76fb9bad61baf6162149 SHA-1: b60d4ef70b6f5c529d7537bc03e12058649be88b SHA-256: b2548b9f671469681c4bb2650dcd695965abb3239adc590d0ed451684d491011
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple links and references to game hacks and cheats, specifically for Roblox. The primary link, http://netcdn.co/app/431946152/roblox-no-clip-in-cheat-engine-2021-game-hack, suggests a lure to download or access potentially malicious software disguised as a game cheat. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to trick users into executing harmful content.

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/roblox-no-clip-in-cheat-engine-2021-game-hack PDF link annotation
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/fightfor-glorton-free-l-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/free-roblox-account-2021-december_GM431946152.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/hacking-the-final-stands-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/how-to-hack-the-roblox-developer-console_GM431946152.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/download-a-free-gater-for-robux-generator_GM431946152.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/minecraft-win-10-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/free-shards-shard-seekers-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/free-robux-working_GM431946152.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/cara-menjual-barang-free-menjadi-pakai-robux-di-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/hacks-para-traspasar-paredes-en-ccualquier-juego-de-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/money-cheat-roblox-rocitizens_GM431946152.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/robuxian-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/claim-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/sword-burst-2-cheats-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/free-roblox-clothes-for-your-avatar_GM431946152.pdfIn PDF document text
    • https://elearning.mtsusbbatam.com/__statics/gudangsoal/files/how-to-get-free-roblox-gear-2021_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_off00003356.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3356 22500 bytes
SHA-256: 1c1beabfb7c536bc91fec7caf8bac908241610ada990ef1e2cccc655a3a15d8f
font_01_sfnt_off00006577.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6577 19488 bytes
SHA-256: f1f5fa3fd4ab8ac366a9d9e3f2285fb554bdbc4cc1049d79e319f53a3a68f0f6

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