Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0f6b59a540a7e37…

MALICIOUS

PDF

35.1 KB Created: 2021-06-19 00:11:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 75d1baf1098e99989fab5ea44ade90fa SHA-1: 6924e37733d58c6df5723ee6aac55876d8815493 SHA-256: a0f6b59a540a7e37e8d481f09d2fefce597f5140104ee6077a4c8c823694df0b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to websites that promise free in-game currency or hacks for popular games, such as Roblox and Coin Master. These links are identified as malicious redirectors, indicating a phishing or scam attempt. The document body, though partially corrupted, contains references to these lures and embedded URLs, reinforcing the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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-jailbreak-get-free-money-game-hack In PDF document text
    • https://lesegais.ru/images/get-free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • https://lesegais.ru/images/robux-fun-hack_GM431946152.pdfIn PDF document text
    • https://lesegais.ru/images/free-skin-roblox-download_GM431946152.pdfIn PDF document text
    • https://lesegais.ru/images/free-robux-no-human-verification-or-survey-or-download_GM431946152.pdfIn PDF document text
    • https://lesegais.ru/images/coun-master_GM406889139.pdfIn PDF document text
    • https://lesegais.ru/images/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
    • https://lesegais.ru/images/how-to-get-free-roblox-gift-cards_GM431946152.pdfIn PDF document text
    • https://lesegais.ru/images/coin-master-32-mod-hack-unlimited_GM406889139.pdfIn PDF document text
    • https://lesegais.ru/images/roblox-miscreated-hacks_GM431946152.pdfIn PDF document text
    • https://lesegais.ru/images/hacking-my-brothers-roblox-acaawaant_GM431946152.pdfIn PDF document text
    • https://lesegais.ru/images/free-robux-master_GM431946152.pdfIn PDF document text
    • https://lesegais.ru/images/minecraft-app-store-free_GM479516143.pdfIn PDF document text
    • https://lesegais.ru/images/free-robux-generator-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://lesegais.ru/images/roblox-redeem-card-codes-free_GM431946152.pdfIn PDF document text
    • https://lesegais.ru/images/roblox-mod-apk-unlimited-robux-2021-download-free_GM431946152.pdfIn PDF document text
    • https://lesegais.ru/images/gain-free-bux-for-roblox-free-download-2021_GM431946152.pdfIn PDF document text
    • https://lesegais.ru/images/5-real-roblox-games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • https://lesegais.ru/images/roblox-free-play-no-install_GM431946152.pdfIn PDF document text
    • https://lesegais.ru/images/how-to-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • https://lesegais.ru/images/free-robux-generator-no-verification_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_off00003133.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3133 22340 bytes
SHA-256: 8f0703db9a8f6679cca1a0c9aebae7437f124996cb5c299b94afb278b0ba1d6d
font_01_sfnt_off0000633a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x633A 19400 bytes
SHA-256: 0aff6ce8c18c9ca62a4b441a17a1ab9ab6acd2dbe4494e4fd73e33dcb3870358

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