Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab599ca1a11ccf6c…

MALICIOUS

PDF

44.8 KB Created: 2021-06-11 09:07:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: c1ad80577205746f41b199cdaa80b92d SHA-1: 79f16ddc24dc388cb8feb5bba94728e506fcfd96 SHA-256: ab599ca1a11ccf6cc9c35bc0180fa8049d5f0b0452898bec14b5bc4cc10b54fc
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to external websites, with a primary URL pointing to a 'game hack' lure. The ML classifier strongly indicated maliciousness, and the presence of embedded URLs suggests an attempt to redirect the user to a malicious site for further exploitation or credential harvesting. No scripts were extracted, but the overall pattern is consistent with a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.tw/app/431946152/avast-cheat-roblox-game-hack PDF link annotation
    • http://szekelymozes.ro/images/hack-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://szekelymozes.ro/images/roblox-jailbreak-free-vip-server-2021_GM431946152.pdfIn PDF document text
    • http://szekelymozes.ro/images/codes-for-roblox-hack_GM431946152.pdfIn PDF document text
    • http://szekelymozes.ro/images/free-money-in-mad-city-in-roblox-with-codes_GM431946152.pdfIn PDF document text
    • http://szekelymozes.ro/images/rbxcity-free-robux_GM431946152.pdfIn PDF document text
    • http://szekelymozes.ro/images/wizard-simulator-roblox-hack_GM431946152.pdfIn PDF document text
    • http://szekelymozes.ro/images/corrupt-roblox-torso-free-servers_GM431946152.pdfIn PDF document text
    • http://szekelymozes.ro/images/how-do-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://szekelymozes.ro/images/without-pokemon-go-free-promo-codes_GM1094591345.pdfIn PDF document text
    • http://szekelymozes.ro/images/wall-hack-roblox_GM431946152.pdfIn PDF document text
    • http://szekelymozes.ro/images/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://szekelymozes.ro/images/free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://szekelymozes.ro/images/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://szekelymozes.ro/images/wwwcoin-master-hack-apk_GM406889139.pdfIn PDF document text
    • http://szekelymozes.ro/images/robloxfun-com-generator_GM431946152.pdfIn PDF document text
    • http://szekelymozes.ro/images/coin-master-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://szekelymozes.ro/images/free-spins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://szekelymozes.ro/images/roblox-robux-generator-hack-2021_GM431946152.pdfIn PDF document text
    • http://szekelymozes.ro/images/roblox-robux_GM431946152.pdfIn PDF document text
    • http://szekelymozes.ro/images/how-do-you-hack-roblox_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
font_00_sfnt_off00004fb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FB8 26556 bytes
SHA-256: b1bad424370d68792154b6cd65d0a112c761db763a92b4c369daf02fcd932037
font_01_sfnt_off00008c21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C21 18396 bytes
SHA-256: 9dc3f51b2c600509ca9f300fee57f5f9930d9ddf6e47346ef302c62f1a9d0bfe

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