Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2d471e1a68809c3…

MALICIOUS

PDF

45.1 KB Created: 2021-06-07 12:04:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: a746a0c840caae28b841146911bf3ad0 SHA-1: 760129ee64a92f42d124ccd70f27c89336015c7c SHA-256: e2d471e1a68809c3228304641378263a61eeaf3e71358d66be7c5c558eded32c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple links that redirect to websites advertising game hacks and generators. The ML classifier and specific heuristics strongly indicate malicious intent, likely to trick users into downloading malware or engaging in scams. The primary lure is the promise of in-game advantages, a common social engineering tactic.

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/roblox-speed-hack-download-2021-game-hack PDF link annotation
    • https://shimony.net/images/coin-master-free-attack-link_GM406889139.pdfIn PDF document text
    • https://shimony.net/images/minecraft-free-android_GM479516143.pdfIn PDF document text
    • https://shimony.net/images/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • https://shimony.net/images/free-robux-rewards_GM431946152.pdfIn PDF document text
    • https://shimony.net/images/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • https://shimony.net/images/free-coin-master-spins-and-coins-for-daily_GM406889139.pdfIn PDF document text
    • https://shimony.net/images/minecraft-world-free-download_GM479516143.pdfIn PDF document text
    • https://shimony.net/images/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
    • https://shimony.net/images/coin-master-free-spins-hack-without-human-verification_GM406889139.pdfIn PDF document text
    • https://shimony.net/images/minecraft-java-free-download_GM479516143.pdfIn PDF document text
    • https://shimony.net/images/minecraft-server-hacks_GM479516143.pdfIn PDF document text
    • https://shimony.net/images/how-to-play-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://shimony.net/images/free-robux-no-anti-bot-verification_GM431946152.pdfIn PDF document text
    • https://shimony.net/images/free-spin-link_GM406889139.pdfIn PDF document text
    • https://shimony.net/images/roblox-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://shimony.net/images/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://shimony.net/images/free-roebucks-no-human-verification_GM431946152.pdfIn PDF document text
    • https://shimony.net/images/coin-master-free-spin-today-2021_GM406889139.pdfIn PDF document text
    • https://shimony.net/images/actual-free-robux_GM431946152.pdfIn PDF document text
    • https://shimony.net/images/optifine-pe_GM479516143.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_off000050e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50E3 25316 bytes
SHA-256: 00b52170f12cdf07251eeff0388aea2e09df5b905f84ff83d18bba8d776c76d5
font_01_sfnt_off00008a43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A43 19264 bytes
SHA-256: 54b38f2765d362cd9ae827221d00057a2b9e923a633d6a0c6ccaf3ecd9539414

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