Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd460663d15d474c…

MALICIOUS

PDF

34.7 KB Created: 2021-07-04 08:06:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 422182eebccedef24dfe7bbbc06dae85 SHA-1: 07226587b1ce7fb2010acc591645c530fe751bc7 SHA-256: bd460663d15d474cc5de7bcf6e2133e60e41942bb1c140747bc7e0f534c3e658
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs, with a primary lure related to 'free likes on TikTok' and 'game hacks'. The heuristic firings indicate that the PDF links to a redirector designed to trick users into believing they are accessing a generator or hack. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lures suggest an attempt to direct users to malicious websites for potential credential harvesting or further malware delivery.

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.tw/app/835599320/free-likes-on-tiktok-game-hack PDF link annotation
    • http://sellitafrica.com/media/storage/editor/files/no-robux_GM431946152.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/roblox-hack-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/cheats-for-roblox-jailbreack_GM431946152.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/cheat-mode-one-punch-man-roblox_GM431946152.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/free-cool-things-in-roblox-that-charecters-played_GM431946152.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/coin-master-free-coins-twitter_GM406889139.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/how-to-get-the-er-face-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/roblox-world-pw-free-robux_GM431946152.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/roblox-hacked-accounts-list_GM431946152.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/free-likes-for-tiktok_GM835599320.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/how-to-cheat-in-roblox_GM431946152.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/free-likes-on-tiktok_GM835599320.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/coin-master-hack-tool-download_GM406889139.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/speed-hack-roblox-lumber-tycoon-2_GM431946152.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/best-free-injectors-for-roblox_GM431946152.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • http://sellitafrica.com/media/storage/editor/files/hacking-tools-roblox-2021_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
font_00_sfnt_off000032b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32B8 22844 bytes
SHA-256: bb43bd109648ab8067fdb199b55cf8dff4b9dd128a7de334c47cff19a60b5b47
font_01_sfnt_off000065d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65D1 17972 bytes
SHA-256: 884e8ee6ba955ff3785880493a5684331dd256eb633d2e7e9c504d86a4b31a47

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