Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbc2d41e77d5ceef…

MALICIOUS

PDF

42.5 KB Created: 2021-05-15 04:09:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 3f1b3349cb6952cad8343e4cb6f4b31b SHA-1: e9de7e01c9a9b78ab9520406f20a759e7367f0ce SHA-256: bbc2d41e77d5ceef338b8f45da3fa13e60a759aed19d7ba74838377021c1eaf6
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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-extra-spins-game-hack PDF link annotation
    • http://halitbayramoglu.com.tr/images/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/how-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/coin-master-hack-twitter_GM406889139.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/free-roblox-card-codes_GM431946152.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/coin-master-free-gift-link-2021_GM406889139.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/coin-master-raid-hack_GM406889139.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/free-roblox-generator_GM431946152.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/coin-master-free-spins-daily-link-game-mod_GM406889139.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/are-there-any-coin-master-hacks-that-actually-work_GM406889139.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/minecraft-pvp-hacks_GM479516143.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/coin-master-free-coins-and-spins-link-today_GM406889139.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/free-roblox-clothes_GM431946152.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/how-do-you-install-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/rewardex-robux_GM431946152.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/free-robux-survey_GM431946152.pdfIn PDF document text
    • http://halitbayramoglu.com.tr/images/can-you-get-robux-for-free_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_off00004a9d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A9D 26036 bytes
SHA-256: f62ebd57e6445a66cae54775f92c8ed97721b10ad25525dc3e2245f7a3c331a6
font_01_sfnt_off000084bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84BF 17932 bytes
SHA-256: e4978cd717731c86087c350f2d5b7f64f0cbe84d579e2f10df1b5c46c99d20e9

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