Malicious PDF — malware analysis report

Static analysis result for SHA-256 14fff38857faf1b8…

MALICIOUS

PDF

35.2 KB Created: 2021-06-28 08:15:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: eff8f12405058359e0282b2c88db5f23 SHA-1: ec2afaa2eea6cac64f98ec1827eab77bd7a1787d SHA-256: 14fff38857faf1b89d0817adb53774c974859ab7d2145e04b676a84bb12a5609
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of 'free game hacks' to entice users to click on embedded links. The primary link, http://netcdn.co/app/431946152/appcatch-free-robux-game-hack, is identified as a high-risk redirector. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a malicious intent to redirect users to potentially harmful websites, likely for credential harvesting or further malware delivery.

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.co/app/431946152/appcatch-free-robux-game-hack PDF link annotation
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/coin-master-hack-apk-35-11_GM406889139.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/roblox-how-to-make-ranks-in-groups-for-free_GM431946152.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/coin-master-free-spin-app-iphone_GM406889139.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/tiktok-likes-free_GM835599320.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/roblox-rainbow-shaggy-free_GM431946152.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/roblox-how-to-play-paid-games-for-free_GM431946152.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/buy-robux-free_GM431946152.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/master-coin-hack-game_GM406889139.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/free-robux-codes_GM431946152.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/coin-master-hack-pc-cheat-engine_GM406889139.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/cheat-engine-table-for-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/free-roblox-account-username-and-password-2021_GM431946152.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/free-spins-coin-master-apple_GM406889139.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/how-to-get-free-stuff-in-roblox-dragon-riders_GM431946152.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/free-apk-mods-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/free-spins-link-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://elearning.man3boyolali.sch.id/__statics/gudangsoal/files/hack-for-rubux-on-roblox_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_off000031f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31F9 22552 bytes
SHA-256: e429e074a484b309f5ccefbab1dc66e279c00cc3c274b299660d4ceec6d30875
font_01_sfnt_off00006440.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6440 19160 bytes
SHA-256: ad3168b581bbbc1c9183034c6e3528fe586235a70b6ef0dc959f9a6daaa6e616

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