Malicious PDF — malware analysis report

Static analysis result for SHA-256 678e79df133c1afe…

MALICIOUS

PDF

41.9 KB Created: 2021-05-12 12:49:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: af39ccaac6d8a26a82e58642d70e3aaa SHA-1: 7bf5ab0662a5d7e51e7d6e39e93d3fb313b5ba03 SHA-256: 678e79df133c1afe85bd126e8d3ff84156f20818e11d224bb6b54c21a162f272
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a high-severity heuristic indicating it links to a 'free generator / game hack' redirector. The document body and embedded URLs reinforce this, pointing to a URL that promises free game-related content. This suggests a social engineering lure to trick users into visiting a potentially malicious site.

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/431946152/free-roblox-hair-codes-game-hack PDF link annotation
    • https://www.arquetopia.org/images/free-spin-coin-master-online_GM406889139.pdfIn PDF document text
    • https://www.arquetopia.org/images/free-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.arquetopia.org/images/free-robux-codes_GM431946152.pdfIn PDF document text
    • https://www.arquetopia.org/images/roblox-printables-free_GM431946152.pdfIn PDF document text
    • https://www.arquetopia.org/images/robux-websites-that-work_GM431946152.pdfIn PDF document text
    • https://www.arquetopia.org/images/robux-place-rewards_GM431946152.pdfIn PDF document text
    • https://www.arquetopia.org/images/windows-10-minecraft-free-with-java_GM479516143.pdfIn PDF document text
    • https://www.arquetopia.org/images/get-free-robux-today_GM431946152.pdfIn PDF document text
    • https://www.arquetopia.org/images/free-robux-group-payouts_GM431946152.pdfIn PDF document text
    • https://www.arquetopia.org/images/link-for-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.arquetopia.org/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.arquetopia.org/images/coin-master-time-hack-ios_GM406889139.pdfIn PDF document text
    • https://www.arquetopia.org/images/hack-crack-for-coin-master-currency_GM406889139.pdfIn PDF document text
    • https://www.arquetopia.org/images/is-minecraft-free-on-ps4_GM479516143.pdfIn PDF document text
    • https://www.arquetopia.org/images/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://www.arquetopia.org/images/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
    • https://www.arquetopia.org/images/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://www.arquetopia.org/images/free-robux-without-any-verification_GM431946152.pdfIn PDF document text
    • https://www.arquetopia.org/images/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.arquetopia.org/images/mcpe-master-hack-coin-apk_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000453a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x453A 26092 bytes
SHA-256: 036863a245780842689dea8530adfde2f9247c1a692f1f75631b17771aa0b17d
font_01_sfnt_off000080de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80DE 18472 bytes
SHA-256: 58bd8e37bff2e40e3b0dd1e4e28472cf67d664de325b47398c2f4df4c0a3a645

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