Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbe0d9202f62f8d1…

MALICIOUS

PDF

35.7 KB Created: 2021-06-26 00:34:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 8559b85c977dfaab33682a999531089b SHA-1: 0e55f86c3923be896c36a2a91aa1a3639c22ce5c SHA-256: cbe0d9202f62f8d1c83aef51094c1c1115d83da704daf258f2a0ee4d19e06d98
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a prominent link and lure text related to "Roblox Hack Without Download", directing users to a suspicious URL. This heuristic, combined with the ML classifier flagging the PDF as malicious, indicates an attempt to trick users into visiting a potentially harmful site. The document body, though partially garbled, reinforces the lure by repeating the malicious URL and related keywords.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/roblox-hack-without-download-game-hack PDF link annotation
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/free-robux-pin-codes_GM431946152.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/coin-master-twitter-free-spins_GM406889139.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/free-robux-generator-for-kids_GM431946152.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/roblox-games-com-free_GM431946152.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/coin-master-hack-iosgods_GM406889139.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/how-to-get-roblox-money_GM431946152.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/pubg-uc-murah_GM1330123889.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/roblox-free-items_GM431946152.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/minecraft-hacks-list_GM479516143.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/play-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/how-to-get-free-robux-on-mobile_GM431946152.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/hackear-coin-master-sin-verificacion_GM406889139.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • https://www.laxmansartemporium.com/uploaded_files/userfiles/files/minecraft-pe-apk-download-free-015-0_GM479516143.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
font_00_sfnt_off000031c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31C4 22572 bytes
SHA-256: 03b25bdac7468519493cae42954b6a1700cae096d6c10b9052d498466442ad90
font_01_sfnt_off00006424.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6424 19892 bytes
SHA-256: 67dea8d97f55b9d54e8c3f5130b3b19050bb57da427547d21d8cd026eab947ff

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