Malicious PDF — malware analysis report

Static analysis result for SHA-256 d023552960196d83…

MALICIOUS

PDF

34.3 KB Created: 2021-07-05 09:29:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 8473fdbd402335874ac18cb3b24d3c5c SHA-1: f421a42d322b30a3581f039f757f179c9f0b044b SHA-256: d023552960196d834b83b824b1c25ed6d0d96974bde9e65b8f3bed1e6ebb5c75
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 0.9980

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/free-roblox-promo-codes-for-robux-game-hack PDF link annotation
    • http://bob-reid-music.com/uploads/files/files/roblox-g_GM431946152.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/nicsterv-robux-hack_GM431946152.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/coin-master-coin-hack_GM406889139.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/roblox-cheats-for-jailbreack_GM431946152.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/daily-coin-master_GM406889139.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/roblox-fun-com-robux_GM431946152.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/roblox-how-to-get-any-gamepass-free-not-patched_GM431946152.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/free-spins-for-coin-masters_GM406889139.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/how-to-get-more-robux_GM431946152.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/roblox-free-clothes-generator_GM431946152.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/apk-roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/how-to-get-free-robux-apple_GM431946152.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/roblox-arsenal-hack-script_GM431946152.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/free-robux-roblox-no-human-verification_GM431946152.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/coin-master-free-spins-16-04-19_GM406889139.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/scaffold-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://bob-reid-music.com/uploads/files/files/comment-cheat-les-robux-ilimit_GM431946152.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_off00002f83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F83 22076 bytes
SHA-256: 6694ca4ea0e197afb9e604ac3a96c1157e4f0301d5b388a38a474ed2bc130510
font_01_sfnt_off0000604b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x604B 19380 bytes
SHA-256: b9e13cbc0d8b8e2fa33e227b4ba01f3d99a632c345b6e3dc52c76698f84cc7c7

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