Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c204da4ce9d2aca…

MALICIOUS

PDF

35.9 KB Created: 2021-07-07 01:52:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 057f0673e1528776234f47bb29f6d403 SHA-1: c328cc5419c25b0ecd5612766f481ec910d81929 SHA-256: 7c204da4ce9d2aca820d5d5464122fa085218fbb0a42d7a6fcbc30bb2f410933
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-risk heuristic firing for a 'free generator / game hack' redirector, pointing to a suspicious URL. The document body also contains this URL, reinforcing the lure. This suggests the PDF is designed to trick users into visiting a site that likely hosts further malicious content or exploits.

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/431946152/is-it-possible-to-get-free-robux-game-hack PDF link annotation
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-cards_GM406889139.pdfIn PDF document text
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/how-to-hack-coin-master-apple_GM406889139.pdfIn PDF document text
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/roblox-trolling-hack_GM431946152.pdfIn PDF document text
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/guy-cheats-on-irl-girlfriend-with-roblox-girlfriend_GM431946152.pdfIn PDF document text
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/free-spins-coin-master-march-2021_GM406889139.pdfIn PDF document text
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/pubg-uc-center_GM1330123889.pdfIn PDF document text
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/how-to-get-free-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/microsoft-bing-robux_GM431946152.pdfIn PDF document text
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/minecraft-free-unblocked_GM479516143.pdfIn PDF document text
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/coin-master-spin-link-today-free_GM406889139.pdfIn PDF document text
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/best-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/coin-master-freebies_GM406889139.pdfIn PDF document text
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/coin-master-apk-mod-free-download_GM406889139.pdfIn PDF document text
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/roblox-font-free_GM431946152.pdfIn PDF document text
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/op-rewards-free-robux_GM431946152.pdfIn PDF document text
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/roblox-game-free-download_GM431946152.pdfIn PDF document text
    • https://learning.mansatupadangpanjang.sch.id/__statics/gudangsoal/files/coin-master-free-spins-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
font_00_sfnt_off0000351f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x351F 22580 bytes
SHA-256: 4d67ccbcb23526e8b9a38162329165dd35d2def36bda27ae404126c5609ca321
font_01_sfnt_off0000673b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x673B 19168 bytes
SHA-256: f24a5ada971d965804af58b04ee5b9b6367f2e4ca5c866edee18a0a4d3da7d81

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