Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c2d95d23e99eb5d…

MALICIOUS

PDF

33.8 KB Created: 2021-06-18 01:51:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 7a50dc549e7aa4c7713bdec0e06735ed SHA-1: d528daa3e6b7e16f17eded1b4b055ac818968659 SHA-256: 6c2d95d23e99eb5dfcdd385ae7a3af882c818e3779331a30207d0b9f317d0fe8
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple embedded URLs that are designed as lures for game hacks and free currency. The primary URL, http://netcdn.co/app/431946152/how-to-hack-in-roblox-soul-stone-sim-game-hack, is directly linked to a 'game hack' heuristic firing. This suggests the document's purpose is to redirect users to potentially malicious sites for illicit gains. No scripts were extracted from this sample.

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.co/app/431946152/how-to-hack-in-roblox-soul-stone-sim-game-hack PDF link annotation
    • http://cintabaca.org/katalog//repository/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/links-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/free-robux-app-2021_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/how-to-get-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/roblox-person_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/mcpe-master-coins-hack-download_GM406889139.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/how-to-get-minecraft-for-free-on-tablet_GM479516143.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/free-spins-coin-master-ios-links_GM406889139.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/coin-master-heaven-daily-free-spins_GM406889139.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/ways-to-earn-robux_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/coin-master-free-spins-youthnow_GM406889139.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/cool-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/free-roblox-codes_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/bux-free-robux_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/how-tom-get-games-free-roblox_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/roblox-but_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/haktuts-coin-master-free-spins_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_off00002efd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EFD 21440 bytes
SHA-256: 6dcf76de94c15c1ca68e955127ba521d0385d293e278e70b21bc63b4ac316b4e
font_01_sfnt_off00005ddc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DDC 19444 bytes
SHA-256: cbcbaf73115115dedd5063c58aa0ed5b32ba6c2af8c4b786d118f3f07bb444a4

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