Malicious PDF — malware analysis report

Static analysis result for SHA-256 56460bd10ad45330…

MALICIOUS

PDF

44.2 KB Created: 2021-05-14 22:03:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: b3e3916f1ee46dac42cac5833aef9b47 SHA-1: 809de014b2df7dc19306f28f91db9a70b192fceb SHA-256: 56460bd10ad45330dbe19430f349b7665e548676c33909f060707e572dbe9aa3
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for 'free Robux' and game hacks, directing users to the URL https://netcdn.xyz/app/431946152/free-robux-come-game-hack. This URL is flagged as malicious and is associated with a game hack redirector. The ML classifier also strongly indicated maliciousness. While no scripts were explicitly extracted, the PDF structure and embedded URI heuristics point towards a phishing or scam attempt.

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 https://netcdn.xyz/app/431946152/free-robux-come-game-hack PDF link annotation
    • https://mountainholidaytreks.com/userfiles/files/coin-master-34-4-free-download_GM406889139.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/coin-master-fan-page-giveaway_GM406889139.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/game-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/how-to-get-free-hair-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/coin-master-fan-page-facebook_GM406889139.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/free-roblox-clothes_GM431946152.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/how-to-get-a-lot-of-robux_GM431946152.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/claim-free-robux_GM431946152.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/free-robux-scams_GM431946152.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/minecraft-anarchy-server-no-hacks_GM479516143.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/master-hack-coin_GM406889139.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/coin-master-daily-rewards_GM406889139.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/coin-master-hack-apk-2021-download_GM406889139.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/coin-master-spin-link-today_GM406889139.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/free-robux-sites-2021_GM431946152.pdfIn PDF document text
    • https://mountainholidaytreks.com/userfiles/files/minecraft-modded-client_GM479516143.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_off00004a39.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A39 27812 bytes
SHA-256: 61d29d2aa9a382b0240e50a992cea07d5ca67c4fc1a0cbfa90b9f721809f2a15
font_01_sfnt_off00008ac1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AC1 18276 bytes
SHA-256: d7491fe45cc88596c87233a963b6162720bf27c142cea717df16fbc09fa29ea6

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