Malicious PDF — malware analysis report

Static analysis result for SHA-256 d624c52da33b07fa…

MALICIOUS

PDF

43.5 KB Created: 2021-05-10 16:10:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 2ac6ba209ccb83986d31cae32a6cb58c SHA-1: 7ae2a28ad6299e79962a70ad2203626487904048 SHA-256: d624c52da33b07fa78fe3dfaab0eb92cc29f5f0727620d8afe65d91428d23c6c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a call-to-action phrase, luring users with promises of game hacks and generators. The primary malicious URL, https://netcdn.xyz/app/479516143/free-minecraft-java-server-game-hack, is identified as a malicious redirector. The document's structure and embedded links strongly suggest it is designed to trick users into visiting malicious sites, likely for further malware delivery or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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 https://netcdn.xyz/app/479516143/free-minecraft-java-server-game-hack In PDF document text
    • http://fia.ub.ac.id/katalog/repository/mcpe-master-coin-hack-apk_GM406889139.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/coin-master-free-spins-link-no-verification_GM406889139.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/easy-points-gg_GM431946152.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/is-there-an-actual-hack-that-work-for-coin-master_GM406889139.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/cool-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/roblox-free-vip-server_GM431946152.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/minecraft-dungeons-free-download_GM479516143.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/minecraft-auto-miner-hack_GM479516143.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/roblox-rewards-site_GM431946152.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/coin-master-free-cards-2021_GM406889139.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/free-robux-website_GM431946152.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/hacks-para-roblox_GM431946152.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/roblox-com-r_GM431946152.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/minecraft-free-minecoins_GM479516143.pdfIn PDF document text
    • http://fia.ub.ac.id/katalog/repository/rewards-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000048a5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48A5 24328 bytes
SHA-256: 9af05eda89e8cd4c43c80760463bcfab214114b95c190054e82707ce6dff90ea
font_01_sfnt_off00007f2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F2D 2820 bytes
SHA-256: 972979c3a46100cf5f8fd289bc6fbd2496ff75fec0e3f6753648c72ec6eba714
font_02_sfnt_off000088cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88CC 17848 bytes
SHA-256: c817850addb7f4586eab0926175a8ce7be5c169962767968ade405e83d703cb9

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