Malicious PDF — malware analysis report

Static analysis result for SHA-256 633be58f6a826e20…

MALICIOUS

PDF

44.0 KB Created: 2021-06-03 09:39:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 3e5a0158a781952d725b549da5328809 SHA-1: 51c109589b9fdfe08a18a9fd268541ec91bc264e SHA-256: 633be58f6a826e20aad0fda6e547d5e7df6cfa844b3d2266455f3bf7370ca893
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file contains a high-severity heuristic indicating it links to a 'free generator / game hack' lure. The document body, though heavily obfuscated, contains URLs pointing to similar game hack content. The primary attack pattern observed is social engineering to trick users into visiting a potentially malicious external resource.

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.online/app/406889139/coin-master-spin-free-game-hack PDF link annotation
    • https://ethraa.ae/userfiles/files/hack-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/free-minecraft-bedrock-server_GM479516143.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/games-for-robux_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/moon-active-games_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/can-you-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/coin-master-hacks-android_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/how-to-get-free-spins-on-coin-master-android_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/free-tiktok-video_GM835599320.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/minecraft-pe-015-0-apk-free-download_GM479516143.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/free-spins-generated-from-coin-master_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/how-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/how-to-get-real-robux_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/is-minecraft-bedrock-free_GM479516143.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/cool-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/minecraft-server-hacks_GM479516143.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/coin-coin-master-hack_GM406889139.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_004_off0000505f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x505F 25908 bytes
SHA-256: a9d50a2fd6c046639034085b9cb7445da9238b0f1530cef5caee96f8e6f64720
font_01_sfnt_off00008a7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A7B 17884 bytes
SHA-256: f64f8d8cd546afe107dcd88d9ce91258665e3d619825ef5ba403a2abc0c27184

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