Malicious PDF — malware analysis report

Static analysis result for SHA-256 700d389a6c128c66…

MALICIOUS

PDF

42.6 KB Created: 2021-05-11 05:35:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: e5326b0fc1bcc33776a612d3b9983f3a SHA-1: 0f4156ab72d502bc837f53caa9c1bf0c415b9a75 SHA-256: 700d389a6c128c668e574825151f375a4036b27a40b4beb96eef57b90e1dd811
200 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains a lure for game hacks and redirects to known malicious infrastructure. The document body and embedded URLs suggest a scam designed to trick users into downloading further malicious content or visiting phishing sites. The presence of a malicious redirector link and the ML classifier's high confidence score indicate a high likelihood of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 5

  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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-hack-app-game-hack In PDF document text
    • http://kita-sunshine.de/images/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • http://kita-sunshine.de/images/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://kita-sunshine.de/images/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://kita-sunshine.de/images/coin-master-cheats_GM406889139.pdfIn PDF document text
    • http://kita-sunshine.de/images/minecraft-java-edition-key-free_GM479516143.pdfIn PDF document text
    • http://kita-sunshine.de/images/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • http://kita-sunshine.de/images/100-robux_GM431946152.pdfIn PDF document text
    • http://kita-sunshine.de/images/minecraft-hacks-xbox_GM479516143.pdfIn PDF document text
    • http://kita-sunshine.de/images/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://kita-sunshine.de/images/free-robux-codes-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://kita-sunshine.de/images/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • http://kita-sunshine.de/images/coin-master-hack-apk-link_GM406889139.pdfIn PDF document text
    • http://kita-sunshine.de/images/master-free-spin-and-coin-link_GM406889139.pdfIn PDF document text
    • http://kita-sunshine.de/images/buy-robux-free_GM431946152.pdfIn PDF document text
    • http://kita-sunshine.de/images/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://kita-sunshine.de/images/coin-master-key-free-spin_GM406889139.pdfIn PDF document text
    • http://kita-sunshine.de/images/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://kita-sunshine.de/images/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://kita-sunshine.de/images/spin-link-coin-master_GM406889139.pdfIn PDF document text
    • http://kita-sunshine.de/images/robux-hack-no-human-verification_GM431946152.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
stream_003_off00004bb5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BB5 26004 bytes
SHA-256: 67c229316d2c7d9da67c8406bbf61d7ede033a986b2ba59e7bb55716baa8c839
font_01_sfnt_off0000858b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x858B 17912 bytes
SHA-256: 034e04b5cafc108ff4258a9a8c33ed7a0e20a1bf60bea28de924bbbe05b546ea

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