Malicious PDF — malware analysis report

Static analysis result for SHA-256 623673b7a8037785…

MALICIOUS

PDF

32.5 KB Created: 2021-07-06 02:11:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: d87b78c1c107922283d2c42eebbece64 SHA-1: df108ce9ecd9630d5f92649ca81cf9b7669725ee SHA-256: 623673b7a803778542f7677ec738ca2799fac42d9f4b6a6bcd9f790f61958059
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 0.9824

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 http://netcdn.tw/app/431946152/roblox-gift-card-online-free-game-hack PDF link annotation
    • http://www.pspmrsmmbk.com/cendana//repository/free-spins-on-coin-masters_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/how-to-get-roblox-premium-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/gaming-app-cheats-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/free-roblox-injectorscom_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/2021-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/coin-master-app-for-free-spins_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/actual-free-robux_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/bypassed-cheat-engine-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/free-roblox-usernames-and-passwords_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/dragon-ball-rage-roblox-hack-script_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/coin-master-strategy_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/free-robux-come_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/earn-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/roblox-shuts-down-when-i-open-cheat-engine_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/facebook-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/free-robux-pins_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/coin-master-tricks-and-hacks_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana//repository/coin-master-hack-without-human-verification_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/free-spin-codes-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmmbk.com/cendana/repository/50-free-spins-coin-master-links_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
font_00_sfnt_off000029da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x29DA 21832 bytes
SHA-256: e844cf3270b39566fab7707f80bbb5ef20c59766f3777bf8cafa2ee80bc4e4b6
font_01_sfnt_off00005a06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A06 19048 bytes
SHA-256: 55b46331afb2a8069782d8597c001b3c0c12b84d77f3d9baa1c75e4cada97544

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