Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc349bcdbc47e3de…

MALICIOUS

PDF

38.6 KB Created: 2021-05-20 23:11:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 3faa9e7059afd36a3d9b23d5d0cda1b2 SHA-1: c7942df00733b25d753ce80649ade04d8990de5d SHA-256: cc349bcdbc47e3de2fd7b5db7050dce526d66bab04a65d2cdc42c637a770e7c4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, masquerading as game hacks or generators. The document body explicitly mentions 'Minecraft Free Apk Java Edition' and includes a 'CLICK HERE TO ACCESS MINECRAFT GENERATOR' call to action, reinforcing the lure. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

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/minecraft-free-apk-java-edition-game-hack In PDF document text
    • http://hcberg.com/images/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://hcberg.com/images/how-to-get-a-lot-of-robux_GM431946152.pdfIn PDF document text
    • http://hcberg.com/images/roblox-games-com-free_GM431946152.pdfIn PDF document text
    • http://hcberg.com/images/youtube-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://hcberg.com/images/hack-coin-master-343-apk_GM406889139.pdfIn PDF document text
    • https://code.giftcards.comIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000332f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x332F 24684 bytes
SHA-256: a5b88c266e9b9b3d0c059663403d580e74fdbbcc48b1e8c19fe01e4a0d9fb216
font_01_sfnt_off00006afe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AFE 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off000074b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74B0 18508 bytes
SHA-256: 7f805caa59ccd6978215bee4eedf28eceb946361fac8d119f3ca1e79f02f350d

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