Malicious PDF — malware analysis report

Static analysis result for SHA-256 f143b0854fc615e9…

MALICIOUS

PDF

34.4 KB Created: 2021-06-25 23:30:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 4c000939c6be6bdfc9cf39098ca50f61 SHA-1: f577dd2d91dc78a4e4efe8f3ef6ca676b3549b3d SHA-256: f143b0854fc615e91b359195555077662a8a43bc1f3450871878409c03f78623
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating malicious redirector links, specifically targeting users with lures for game hacks and generators. The document body and embedded URLs reinforce this, pointing to a 'Vermillion Hack Roblox' generator. The primary IOC is the malicious redirector URL used in the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/vermillion-hack-roblox-game-hack In PDF document text
    • https://library.institutpendidikan.ac.id/repository/free-robux-discord-group_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/ho-wto-hack-roblox_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/tiktok-free-view-iphone-theme_GM835599320.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/mcpe-master-hack-unlimited-coins_GM406889139.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/how-to-get-2021-robux-for-free_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/how-to-hack-a-minecraft-account_GM479516143.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/free-robux-trigon-scripts_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/how-to-hack-coin-master-spin-in-hindi_GM406889139.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/free-robux-codes_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/free-robux-offer-walls_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/2021-robux-free_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/nezi-plays-roblox-bloxburg-hacks_GM431946152.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/minecraft-free-school_GM479516143.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • https://library.institutpendidikan.ac.id/repository/roblox-cheat-engine-download-2021_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_off0000300a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x300A 22196 bytes
SHA-256: 415b13d18d7186db40bc2c1fa8318846e4e6f7aff207c6d2ac8acef97e580884
font_01_sfnt_off00006100.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6100 19168 bytes
SHA-256: ad7dff51f3779391bf2ff8c043e8d7baa075a1b9713ec7ec782f17fa40c93851

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