Malicious PDF — malware analysis report

Static analysis result for SHA-256 49e63eaacf53cb30…

MALICIOUS

PDF

34.3 KB Created: 2021-07-04 06:57:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 3acb0e829e46d4c2cb05e26b92810422 SHA-1: 4b510490144b8630ddc2e0a1119cadeb7e87a207 SHA-256: 49e63eaacf53cb30007d564c13a85976ee08ce58e8bdd26bd3be7a3b86632a4a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links, including one identified as a malicious redirector leading to a 'game hack' lure. The document body explicitly contains the URL http://netcdn.tw/app/431946152/bloxland-earn-free-robux-game-hack, which is presented as a 'free generator / game hack'. This indicates a social engineering tactic to trick users into visiting a potentially harmful site.

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.tw/app/431946152/bloxland-earn-free-robux-game-hack In PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/coin-master-hack-spins-android_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/how-do-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/free-coins-and-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/free-roblox-injector_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/free-roblox-adopt-me-pets_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/roblox-fashion-famous-hack-script_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/free-spins-coin-master-daily_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan//repository/free-spins-on-coin-master-generator_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/mcpe-master-coins-hack_GM406889139.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/how-to-get-free-roblox-premium_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/free-apps-like-roblox_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/hack-roblox-jailbreak-money-pc_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/minecraft-survival-hacks_GM479516143.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/robux-for-kids_GM431946152.pdfIn PDF document text
    • http://www.fkunismuh.org/perpustakaan/repository/robux-robux_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/cheat-engine-hack-roblox-rpg_GM431946152.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/free-coins-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • http://fkunismuh.org/perpustakaan/repository/coin-master-free-400-spin-link_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003015.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3015 22132 bytes
SHA-256: 7229836c9dd79521100f585a9f6605136834fbc332e7f624a67576930a8374cf
font_01_sfnt_off00006116.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6116 18964 bytes
SHA-256: e1def2a9526019231b9d88ec7edfc28da13730703cf387a4434b27a982203b29

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