Malicious PDF — malware analysis report

Static analysis result for SHA-256 78512906c14a6afd…

MALICIOUS

PDF

44.2 KB Created: 2021-06-03 11:30:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 13498b0646364227fb8c8d8672ad7b13 SHA-1: 24d50d409dc4b8770dd858c7ea87818db7e62b79 SHA-256: 78512906c14a6afdc963a87ccbaeac47d3fa82f363bb6622be39aa18052c2e5b
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 0.9865

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.online/app/406889139/coin-master-hacks-free-spins-game-hack PDF link annotation
    • https://katalog.smkn1glagah.sch.id/repository/coin-master-hack-pro_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/free-minecraft-accounts-2021_GM479516143.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/coin-master-free-spins-april-2021_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/coin-master-free-link-facebook_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/coin-master-game-hunter_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/free-minecraft-codes_GM479516143.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/roblox-t-shirt-free_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/coin-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/how-to-get-robux-fast_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/free-rare-cards-for-coin-master-christmas_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/coin-master-hack-program_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/wurst-112_GM479516143.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/tiktok-free-update_GM835599320.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/how-to-get-unlimited-robux-2021_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/how-to-get-coin-master-card-free_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/robux-app_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/roblox-free-roblox_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_004_off000052ab.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52AB 24524 bytes
SHA-256: 90411fd76e65e45daae4fe0ec19f43c51285881456b397c53ad99ccb81839a9b
font_01_sfnt_off00008ac8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AC8 18056 bytes
SHA-256: 12d79a7ddbb75c7a0854102822057d5441bee2ca4a20c79f8211a3d0b9a1f375

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