Malicious PDF — malware analysis report

Static analysis result for SHA-256 c38deb581cdf2e58…

MALICIOUS

PDF

43.6 KB Created: 2021-05-14 11:18:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 191f6616cbd943bd8b83f7f8e4f48676 SHA-1: 0b9b4538c2cb251f85cddaed8a3776db701d4410 SHA-256: c38deb581cdf2e5817d582325c70228bd1a1f05f0f838abcedaf3ba824675c90
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs and a prominent link within its body text, all pointing to websites offering game hacks and free currency. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates a social engineering tactic to trick users into visiting these sites. While no scripts were explicitly extracted, the nature of the lures and the embedded URLs suggest a potential for further malicious activity, such as downloading additional payloads or redirecting to phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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-daily-free-spins-link-2021-today-game-hack PDF link annotation
    • http://pizzeria-rosso.pl/images/freerobux-co_GM431946152.pdfIn PDF document text
    • http://pizzeria-rosso.pl/images/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://pizzeria-rosso.pl/images/minecraft-for-ipad-free_GM479516143.pdfIn PDF document text
    • http://pizzeria-rosso.pl/images/how-to-create-group-in-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://pizzeria-rosso.pl/images/robux-free-gift-card_GM431946152.pdfIn PDF document text
    • http://pizzeria-rosso.pl/images/free-800-robux_GM431946152.pdfIn PDF document text
    • http://pizzeria-rosso.pl/images/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://pizzeria-rosso.pl/images/roblox-script-executor-free_GM431946152.pdfIn PDF document text
    • http://pizzeria-rosso.pl/images/robux-free-online_GM431946152.pdfIn PDF document text
    • http://pizzeria-rosso.pl/images/coin-master-free-spins-hack-download_GM406889139.pdfIn PDF document text
    • http://pizzeria-rosso.pl/images/hack-robux_GM431946152.pdfIn PDF document text
    • http://pizzeria-rosso.pl/images/coin-master-free-spins-fb_GM406889139.pdfIn PDF document text
    • http://pizzeria-rosso.pl/images/free-roblox-gift-card_GM431946152.pdfIn PDF document text
    • http://pizzeria-rosso.pl/images/how-to-get-free-robux-fast_GM431946152.pdfIn PDF document text
    • http://pizzeria-rosso.pl/images/get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://pizzeria-rosso.pl/images/blox-supply-free-robux_GM431946152.pdfIn PDF document text
    • http://pizzeria-rosso.pl/images/my-roblox-account-was-hacked_GM431946152.pdfIn PDF document text
    • http://pizzeria-rosso.pl/images/hack-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://pizzeria-rosso.pl/images/how-to-get-free-roebucks-without-verification_GM431946152.pdfIn PDF document text
    • http://pizzeria-rosso.pl/images/free-robux-generator-no-human-verification-2021_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
stream_003_off00004810.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4810 27124 bytes
SHA-256: 5c43a7650862cac8a6af40ad78fc5689b7f8f4f654132a04edbe64bd6ca827d4
font_01_sfnt_off000085b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85B6 19052 bytes
SHA-256: eaae1ca97f535f7f19a3027bb05b0c0b9ff144311ff5366650acbeeb70d65258

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