Malicious PDF — malware analysis report

Static analysis result for SHA-256 69fe2e708cf99cf2…

MALICIOUS

PDF

44.2 KB Created: 2021-05-11 05:08:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 4a23b3778f191e83d3efde3216550028 SHA-1: 48e77e57efa438686dd350874bd35e1f171ae2ca SHA-256: 69fe2e708cf99cf274fc65551e71f561c505e2c2fa3e632efeb3e92514d6a6b7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a high-severity heuristic indicating it links to a game hack lure, specifically directing users to 'https://netcdn.xyz/app/406889139/coin-master-spin-pattern-game-hack'. This URL is likely part of a phishing or scam campaign designed to trick users into downloading malware or providing personal information. The document body, though partially corrupted, also contains references to this URL and other suspicious links, reinforcing the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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-spin-pattern-game-hack PDF link annotation
    • http://www.ocic.hr/files/how-to-make-clothes-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://www.ocic.hr/files/coin-master-free-chest-link_GM406889139.pdfIn PDF document text
    • http://www.ocic.hr/files/www-cheatsk-com-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.ocic.hr/files/hack-robux_GM431946152.pdfIn PDF document text
    • https://www.ocic.hr/files/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • http://www.ocic.hr/files/get-me-free-robux_GM431946152.pdfIn PDF document text
    • https://www.ocic.hr/files/how-to-cheat-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.ocic.hr/files/robux-generator-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://www.ocic.hr/files/coin-master-tips_GM406889139.pdfIn PDF document text
    • http://www.ocic.hr/files/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • https://www.ocic.hr/files/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • http://www.ocic.hr/files/roblox-free-models_GM431946152.pdfIn PDF document text
    • http://www.ocic.hr/files/how-to-hack-coin-master-apple_GM406889139.pdfIn PDF document text
    • http://www.ocic.hr/files/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
    • https://www.ocic.hr/files/robux-free-robux_GM431946152.pdfIn PDF document text
    • https://www.ocic.hr/files/free-coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://www.ocic.hr/files/coin-master-free-generator_GM406889139.pdfIn PDF document text
    • https://www.ocic.hr/files/legitimate-coin-master-free-spins-apk_GM406889139.pdfIn PDF document text
    • http://www.ocic.hr/files/wurst-minecraft_GM479516143.pdfIn PDF document text
    • http://www.ocic.hr/files/how-to-get-free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004997.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4997 24844 bytes
SHA-256: 5fc6f56970438cee82068cd638d36d2bd97d218d0c323cfe2d771a66199ed2b4
font_01_sfnt_off00008177.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8177 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off00008b62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B62 17876 bytes
SHA-256: bd22fd35e13567494ff4a803842d6b5fa952e975cd9e2293b3775db85ba13e50

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