Malicious PDF — malware analysis report

Static analysis result for SHA-256 25ce82493ddb9cd6…

MALICIOUS

PDF

32.9 KB Created: 2021-07-08 23:07:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 24901fbfd2e1c280798a5c780762bc3a SHA-1: 1a442a35a266ddb307ecc134c1236618bb1682ac SHA-256: 25ce82493ddb9cd627c1fda78c514baae6062e834ae9de54c575bbb5629799bb
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/479516143/minecraft-hacker-skin-game-hack PDF link annotation
    • http://cintabaca.org/katalog/repository/how-to-get-free-robux-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/robuxhub-net_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/50-free-spins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/coin-master-free-online_GM406889139.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/free-robux-hack-2021-computer_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/coin-master-club-hack_GM406889139.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/ad-why-cant-have-robux-for-free_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/roblox-accounts-for-sale-free_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/hacks-for-jailbreak-beta-roblox_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/coin-master-free-spins-no-verification_GM406889139.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/hack-roblox-cs-go_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/prisonbreaker16-hack-script-roblox_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/fly-hack-roblox-lumber-tycoon-2-francais_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/coin-master-card-hack_GM406889139.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/free-robux-rixty-code-hack-march-2021-updated_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog/repository/roblox-its-free-sparta-remix_GM431946152.pdfIn PDF document text
    • http://cintabaca.org/katalog//repository/free-coin-master-spin-app_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_off00002e21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E21 22180 bytes
SHA-256: 96d6814a8e250efcde3f02ed76e176daca7a33d90648beaf3c814c626b22f653
font_01_sfnt_off00005eed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EED 18024 bytes
SHA-256: a7bd85aded9e794133e08073d83a45875edf97b13575354264ab13ae1688af66