Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ee1227e766f95b3…

MALICIOUS

PDF

36.9 KB Created: 2021-05-21 07:30:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: ad143df836302d51f6c941c909bda388 SHA-1: c01640e4ba05235933389fbbffb88a256f41978e SHA-256: 3ee1227e766f95b357b70b09039e4198038c708c30799afa888bd2da12380cc1
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 0.9447

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/479516143/minecraft-ps4-code-free-game-hack PDF link annotation
    • http://mklista.ru/images/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://mklista.ru/images/how-to-send-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://mklista.ru/images/funbloxxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://mklista.ru/images/free-robux-generator-2021-no-survey_GM431946152.pdfIn PDF document text
    • http://mklista.ru/images/how-to-change-your-roblox-username-for-free-2021_GM431946152.pdfIn PDF document text
    • https://discord.ggIn 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
font_00_sfnt_off000036e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36E8 25144 bytes
SHA-256: 01196e5e7afa6073240607d88ec689f89594f1af3b3fd859caf376f8470a2198
font_01_sfnt_off00006fa5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FA5 18100 bytes
SHA-256: 40a9ed8622610cf9fa8ac72a3ea4b6e6139de9a15da6eb4025f174f8e2de1100

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