Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e3162e268d3e6df…

MALICIOUS

PDF

41.9 KB Created: 2021-05-11 20:09:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 9dc616680671b98a779d1178f85679c4 SHA-1: dfd74d4a56d756c03eeba8e9580eb2fa09cc1968 SHA-256: 1e3162e268d3e6df7a8230abc885b18d4f62b3730639c2390301d67d4b688101
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 0.9971

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/406889139/free-25-spins-coin-master-links-game-hack PDF link annotation
    • http://nicoletastancu.ro/images/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://nicoletastancu.ro/images/rbxcity-free-robux_GM431946152.pdfIn PDF document text
    • http://nicoletastancu.ro/images/free-roblox-exploits_GM431946152.pdfIn PDF document text
    • http://nicoletastancu.ro/images/coin-master-hack-version-33-2_GM406889139.pdfIn PDF document text
    • http://nicoletastancu.ro/images/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://nicoletastancu.ro/images/free-robux-app_GM431946152.pdfIn PDF document text
    • http://nicoletastancu.ro/images/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://nicoletastancu.ro/images/free-robux-apk_GM431946152.pdfIn PDF document text
    • http://nicoletastancu.ro/images/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://nicoletastancu.ro/images/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://nicoletastancu.ro/images/robux-2021_GM431946152.pdfIn PDF document text
    • http://nicoletastancu.ro/images/robux_GM431946152.pdfIn PDF document text
    • http://nicoletastancu.ro/images/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://nicoletastancu.ro/images/free-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://nicoletastancu.ro/images/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • http://nicoletastancu.ro/images/how-to-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://nicoletastancu.ro/images/coin-master-hack-2021-without-human-verification_GM406889139.pdfIn PDF document text
    • http://nicoletastancu.ro/images/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • http://nicoletastancu.ro/images/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
    • http://nicoletastancu.ro/images/gold-card-coin-master-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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004812.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4812 24844 bytes
SHA-256: 06e82ee72b8560a479ce1493f58d3a85fda936949ed1355520f0155f1ef2458e
font_01_sfnt_off00008169.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8169 18316 bytes
SHA-256: 7fa45621bf9a4728c899947fc0d1a2becd31993fea733f0a04eabb1660a2ec34

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