Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d4632288e00ab1a…

MALICIOUS

PDF

42.3 KB Created: 2021-05-20 00:36:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: a40328a7731548842d6229debbac1a2b SHA-1: 9818b620165852bfa07d18695acb2c67305dfb5b SHA-256: 3d4632288e00ab1af1fac202d4ca42881e7b096a323326613bdc870ca42bee6a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of free game currency and hacks to entice users. It contains multiple embedded URLs, including a primary malicious redirector at `https://netcdn.xyz/app/1330123889/pubg-uc-ykleme-bedava-game-hack`. The ML classifier strongly flagged this PDF as malicious, and the presence of a download button lure further supports a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/1330123889/pubg-uc-ykleme-bedava-game-hack PDF link annotation
    • http://www.perpustakaan.smansa-bdl.sch.id//repository/free-coins-and-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id/repository/hack-coin-master-android-2021_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id//repository/without-pokemon-go-free-pokeballs_GM1094591345.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id/repository/coin-master-online-hack-link_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id//repository/free-coins-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id//repository/coin-master-hack-spin-generator-tool_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id//repository/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id/repository/is-roblox-free-on-nintendo-switch_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id/repository/spin-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id//repository/how-to-get-minecraft-for-free-2021_GM479516143.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id/repository/tiktok-free-likes-and-followers-2021_GM835599320.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id/repository/free-spin-coin-master-new-link_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id//repository/coin-master-free-spins-link-today-hack_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id/repository/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id//repository/coin-master-hack-download-2021_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id//repository/free-robux-picture_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id//repository/coin-master-hack-online-cheat_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id//repository/www-coin-master_GM406889139.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id/repository/get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://www.perpustakaan.smansa-bdl.sch.id//repository/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004869.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4869 24436 bytes
SHA-256: b36fd34deec303f3373906558908fb89c84a25c7bdd624c7f5ae745bd5b67b44
font_01_sfnt_off00008067.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8067 19080 bytes
SHA-256: 4cd96d203a571c1ef442d96d24833759c3babfd7da9ec2cb0f53c3b3599d80ed

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