Malicious PDF — malware analysis report

Static analysis result for SHA-256 e37e8617a6db3e03…

MALICIOUS

PDF

45.1 KB Created: 2021-06-02 11:11:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: c3a51d0161e2f6b27ce6c412ba8d8358 SHA-1: 2e63e9aa698e5b91defafe8e3652d25c8d8ee004 SHA-256: e37e8617a6db3e03e0b498a23b8230710db63b26d30eb5b1f7a7f0fdcb94fb01
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a high-confidence heuristic indicating it's a game hack lure, directing users to a suspicious URL. The document body, though partially corrupted, contains references to 'Roblox Adopt Me Bucks Generator Free' and the same suspicious URL, reinforcing the lure. While no scripts were extracted, the presence of embedded URLs and the nature of the lure suggest a phishing or scam attempt, likely leading to further malware download or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • 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.
  • 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/431946152/roblox-adopt-me-bucks-generator-free-game-hack PDF link annotation
    • http://ipdrs.org/images/free-robux-working_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/wurst_GM479516143.pdfIn PDF document text
    • http://ipdrs.org/images/minecraft-server-hacks_GM479516143.pdfIn PDF document text
    • http://ipdrs.org/images/how-to-get-minecraft-for-free-on-mobile_GM479516143.pdfIn PDF document text
    • http://ipdrs.org/images/free-minecraft-mods-for-pc_GM479516143.pdfIn PDF document text
    • http://ipdrs.org/images/how-to-send-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/free-printable-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • http://ipdrs.org/images/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/coin-master-free-coins-and-spins-hack_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/free-roblox-followers-generator_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/robux-win_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/free-robux-codes-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/free-robux-cards_GM431946152.pdfIn PDF document text
    • http://ipdrs.org/images/coin-master-gift-link-hack_GM406889139.pdfIn PDF document text
    • http://ipdrs.org/images/coin-master-free-coins-and-spins-daily_GM406889139.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_004_off0000508f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x508F 26256 bytes
SHA-256: 7c81fa1ccf2dc9580afc78d3bb98ecf91df7cf59f60384009fb04b82de61dbd5
font_01_sfnt_off00008afb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AFB 19136 bytes
SHA-256: 6cbc5363be54c9d8cb07be36a4ce2ab0f18c6a47789c2e84954db03e2187fd8f

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