Malicious PDF — malware analysis report

Static analysis result for SHA-256 49c8b947e2d623d1…

MALICIOUS

PDF

39.9 KB Created: 2021-05-23 17:44:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: a274f5b6920c227d2cb92863742c9648 SHA-1: cae570af5dbbc8d67e14f31aaab28ffb48c3848d SHA-256: 49c8b947e2d623d1aad7c7416cfb2893ff21162c9c5aa950757d6831f4fc0c81
122 Risk Score

Malware Insights

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

The PDF document contains multiple links to websites offering "free generators" and "game hacks", and also includes a lure for remote support tools. The primary malicious URL, https://netcdn.xyz/app/479516143/minecraft-education-free-game-hack, is directly linked to a "game hack" lure. While no scripts were explicitly extracted, the PDF structure and embedded links suggest it's designed to trick users into downloading further malicious content or granting remote access, aligning with common social engineering tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector high 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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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-education-free-game-hack PDF link annotation
    • http://newbeginningsranch.net/images/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://newbeginningsranch.net/images/robux-online_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/free-robux-pins_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/minecraft-fly-hack_GM479516143.pdfIn PDF document text
    • https://freegiftcodes.euIn 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_002_off00003689.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3689 25672 bytes
SHA-256: e09db5680042fc457443b2f16789b1f566b12000ed174bc387ccbddf4563386c
font_01_sfnt_off00007194.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7194 2880 bytes
SHA-256: 8d09faa7bffaaff86a3199446ae26177c0ae582386a893a6614a14e4b38efd9d
font_02_sfnt_off00007b82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B82 18024 bytes
SHA-256: 50b2d5ff22f0b3ffa840834f12cbec9953eabd3c4e347b5eb6eb3aff22325aed

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