Malicious PDF — malware analysis report

Static analysis result for SHA-256 522be8d82c5a27b5…

MALICIOUS

PDF

45.0 KB Created: 2021-05-11 05:35:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: af50edfe2913ba2e5f331cea468da930 SHA-1: ab48493344169934e3e33eba9d73aba9eb6bbb5f SHA-256: 522be8d82c5a27b5078faca9658dab8c4318f0305f7779ce8cb18644194984d6
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a high-confidence heuristic indicating it links to a "free generator / game hack" redirector. The document body and extracted URLs reinforce this, pointing to a lure designed to trick users into visiting a malicious site. No scripts were extracted, but the PDF structure and embedded URI suggest an attempt to redirect users to potentially malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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/406889139/daily-coin-master-free-spins-game-hack PDF link annotation
    • https://katalog.smkn1glagah.sch.id//repository/robux-sign_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/coin-master-app-hacks_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/what-are-points-for-in-roblox_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/free-spins-coin-master-without-survey_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/coin-master-free-spins-link-download-for-iphone_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/simplysarc_GM479516143.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/free-robux-with-no-survey_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/como-hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/guide--coin-master-free-tips_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/coin-master-game_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/coin-master-freebies_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/coin-master-2021_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/free-roblox-printables_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/free-robux-safe_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/coin-master-cards-hack_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/coin-master-hack-apk-ios_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/coin-master-hack-pc-free_GM406889139.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b64.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B64 25136 bytes
SHA-256: 9b4bb97d56dbcf11c4c95e8ced8b6684efe71a93d2c534015a9dadf103a935ae
font_01_sfnt_off00008340.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8340 2944 bytes
SHA-256: fcfcd28869b8d6c7503d63ed8d48371ec5b580fea2733193e2acbb82b3d30a76
font_02_sfnt_off00008d6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D6B 18308 bytes
SHA-256: 2e377c4e9f27697957871a52337602293a8911c67983c74714bc140e9d069187

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