Malicious PDF — malware analysis report

Static analysis result for SHA-256 010dc7ce643eb051…

MALICIOUS

PDF

38.5 KB Created: 2021-05-24 07:14:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a88f031da005762c4e8fbf48a69c16bf SHA-1: 96b3caf8bee24d83ba2d9edfe054e3550bb51de8 SHA-256: 010dc7ce643eb051ef636389892168c0a079d2ba5693a498f8ddb2bd8134a590
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains lures for free game currency and hacks, directing users to a malicious redirector. The document body and heuristics indicate a social engineering tactic to trick users into clicking on links that lead to potentially harmful content or further malicious downloads. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9476

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/431946152/free-robux-no-human-verification-or-survey-or-download-game-hack In PDF document text
    • https://admin.9credit.vn/data/files/how-to-make-a-private-server-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/coin-master-hack-spin-ios_GM406889139.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/bux-free-robux_GM431946152.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/pubg-uc-kodu-yazma_GM1330123889.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_002_off00003503.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3503 25532 bytes
SHA-256: a9300aaa4269bc6124f43b44db8360531587524c9045c63c8750fda239752862
font_01_sfnt_off000070d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70D3 19736 bytes
SHA-256: 59e4374f8172b973ba9217c83b5ce6b26483f5ae1ceeffd331798f57e1658bad

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