Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f45bdb09a55af7a…

MALICIOUS

PDF

41.1 KB Created: 2021-05-16 21:54:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: bb627b3699c1a14c0ab27b12fcc2872c SHA-1: 6f71be9724e3c59eba414f21889611ca58caab28 SHA-256: 2f45bdb09a55af7a12c373ce703bb1d637e7103d07a8315f2e86f3655fa127e3
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-free-spins-2021-generator-game-hack PDF link annotation
    • http://doganov.be/images/robux-get-com_GM431946152.pdfIn PDF document text
    • http://doganov.be/images/how-to-get-free-robux-on-iphone_GM431946152.pdfIn PDF document text
    • http://doganov.be/images/coin-master-gifts_GM406889139.pdfIn PDF document text
    • http://doganov.be/images/blogger-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://doganov.be/images/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://doganov.be/images/how-to-hack-coin-master-with-lucky-patcher_GM406889139.pdfIn PDF document text
    • http://doganov.be/images/coin-master-free-spins-fb_GM406889139.pdfIn PDF document text
    • http://doganov.be/images/roblox-hack-me_GM431946152.pdfIn PDF document text
    • http://doganov.be/images/coin-master-free-spin-facebook-link_GM406889139.pdfIn PDF document text
    • http://doganov.be/images/free-roblox-dominus_GM431946152.pdfIn PDF document text
    • http://doganov.be/images/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://doganov.be/images/spin-coin-master-free_GM406889139.pdfIn PDF document text
    • http://doganov.be/images/coin-master-game-free-play-online_GM406889139.pdfIn PDF document text
    • http://doganov.be/images/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://doganov.be/images/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://doganov.be/images/free-roblox-codes-2021_GM431946152.pdfIn PDF document text
    • http://doganov.be/images/coin-master-cheat-engine-hack_GM406889139.pdfIn PDF document text
    • http://doganov.be/images/my-minecraft-account-was-hacked_GM479516143.pdfIn PDF document text
    • http://doganov.be/images/coin-master-free-spins-23-march-2021_GM406889139.pdfIn PDF document text
    • http://doganov.be/images/how-do-you-get-robux_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 23840 bytes
SHA-256: dc6846aa359452ce4b6c72ca0004d1d014b7dfec6845bcfab1ad282f6da23494
font_01_sfnt_off00007e20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E20 18288 bytes
SHA-256: 6314f2259b06a943d64bd11b5da4e77269207e3939d52c12000c78136d7b4f6c

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