Malicious PDF — malware analysis report

Static analysis result for SHA-256 823f10ae3233408f…

MALICIOUS

PDF

34.5 KB Created: 2021-07-05 17:35:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: d10877f7b59521a2f8ca5d6f7826d381 SHA-1: f77f20c5628d71e2396f88c560aee4bdd7b927e3 SHA-256: 823f10ae3233408f05610ed41907b408d182a884835664809aa57498b108f916
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a call-to-action phrase, directing users to websites offering 'free game hacks' or account generators. The primary URL, http://netcdn.tw/app/431946152/free-roblox-acc-game-hack, is flagged as a high-risk lure. While no scripts were extracted, the document's structure and embedded links strongly suggest a phishing or social engineering attack aimed at tricking users into visiting potentially malicious sites.

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-acc-game-hack PDF link annotation
    • http://digilib.unla.ac.id/repository/free-admin-roblox-how-to-turn-itto-others_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/roblox-com-hack_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/pokemon-go-free-coins-without-human-verification_GM1094591345.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/minecraft-windows-10-free-trial_GM479516143.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/com-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-make-a-free-server-in-minecraft-java_GM479516143.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-hack-someone-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/minecraft-pe-hack-client-ios_GM479516143.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-hair-roblox-boy_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-do-you-get-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-roblox-card-codes_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/online-coin-master-free-spin-app_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-coin-master-s_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/how-to-hack-someones-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/hack-coin-master-ios-download_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/coin-master-hack-xyz_GM406889139.pdfIn PDF document text
    • http://digilib.unla.ac.id/repository/free-robux-websites-no-human-verification_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_off00002e8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E8E 23260 bytes
SHA-256: 4c3a13ad991969462e6650e6b4123bd4d0e9294e9e79325bc0bea25fc49e14d1
font_01_sfnt_off000062d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62D1 18652 bytes
SHA-256: 897dbc28d09cb323d8d959c0643642adc43f046846d73b8db675e87b41f7de50

Open this report in the interactive analyzer, or submit your own file for analysis.