Malicious PDF — malware analysis report

Static analysis result for SHA-256 12d6b4c9a28d250a…

MALICIOUS

PDF

34.2 KB Created: 2021-07-05 20:21:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 28acaedf9cb160be0ddedaefb5c06175 SHA-1: d0320c8ff977d44414627b87b235d9689f42f5e0 SHA-256: 12d6b4c9a28d250ae000ef991b6cde8c212e5f8a4da92e07f238f925b54286e7
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 0.9980

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 http://netcdn.tw/app/406889139/how-to-earn-free-stars-on-coin-master-game-hack PDF link annotation
    • http://library.forda-mof.org/katalog/repository/roblox-character-free_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/minecraft-nintendo-switch-digital-code-free_GM479516143.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/public-enemy-sun-prairie-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/how-do-you-earn-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-robux-no-human-verification-or-survey-2021-on-ipad_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/tiktok-free-textbooks_GM835599320.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/robux-free-co_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/pokemon-go-free-zip_GM1094591345.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-free-spins-app-android_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-hack-with-lucky-patcher_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/gg-robux-free-generator_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/is-there-any-tricks-or-working-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/roblox-hack-week-2021-2_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-games-like-coin-master_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/roblox-svg-free_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/free-roblox-hair-names_GM431946152.pdfIn PDF document text
    • http://library.forda-mof.org/katalog/repository/robux-hack-no-survey-and-no-user-id_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
font_00_sfnt_off00003051.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3051 22808 bytes
SHA-256: bb89df6ca433d88526caec961490d021d06cb8d8c8e920cfb6a24ff4795f7abe
font_01_sfnt_off00006358.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6358 18164 bytes
SHA-256: 206ec2fa2beec61bc2963600def69606a77f0c86fc91077dfbcf01872e6f56c0

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