Malicious PDF — malware analysis report

Static analysis result for SHA-256 f195b3f0a49ecca2…

MALICIOUS

PDF

41.4 KB Created: 2021-05-17 15:45:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 0b1e787e4f577dd2a6ad8c066e395996 SHA-1: 38acf59009098c157712b7d9989e6e4fda6d0719 SHA-256: f195b3f0a49ecca2fb108ad7d77e6e59f933bf7eb66709d6c80f8e73baaa48d9
82 Risk Score

Malware Insights

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

The PDF contains multiple embedded links and a heuristic firing for a game hack lure, directing users to URLs that likely host further malware or phishing content. The document body, though partially corrupted, also contains references to game hacks and a suspicious URL, reinforcing the malicious intent. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/406889139/coin-master-hack-ios-app-game-hack PDF link annotation
    • http://www.valenciamaids.com/userfiles/files/coins-master-hack_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/coin-master-website_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/how-to-get-minecraft-pe-for-free-ios_GM479516143.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/www-robux-com_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/robux-free-gift-card_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/coin-master-hack-download-apk_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/if-you-delete-minecraft-can-you-redownload-it-for-free_GM479516143.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/www-rubux_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/how-do-u-hack-roblox_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/free-minecraft-survival-server_GM479516143.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/roblox-character-free_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/show-me-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/coin-master-70-spin-link-today_GM406889139.pdfIn PDF document text
    • http://www.valenciamaids.com/userfiles/files/minecraft-bedrock-server-hosting-free_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
stream_003_off0000485e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x485E 24680 bytes
SHA-256: f19780623002f7527cef33bd061a2cfbdb8a6c353a8a59d28d495ecc916ecb1e
font_01_sfnt_off0000809d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x809D 17892 bytes
SHA-256: c18f05485291fd9dd2d982fa815b69c2a1f9afc9df9b250f8ccfc4cbb8514acf

Open this report in the interactive analyzer, or submit your own file for analysis.