Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c70db6e9fe2bc6b…

MALICIOUS

PDF

43.2 KB Created: 2021-05-12 18:08:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 9c08606918cd3a5965dd14bd5320d971 SHA-1: a1cb02145c303042764292550477779c7b817ce4 SHA-256: 9c70db6e9fe2bc6bdf142f861952d274c6bd40e153555d43574e9b50089838e7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a high-confidence heuristic indicating it links to a "free generator / game hack" lure. The embedded URL, https://netcdn.xyz/app/431946152/roblox-free-online-game-game-hack, is likely part of a phishing or scam campaign. The document body also contains numerous links to similar game-related cheat sites, further supporting the lure. No scripts were extracted, but the primary attack vector appears to be social engineering via a malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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-free-online-game-game-hack PDF link annotation
    • http://baah.ca/images/roblox-free-items-2021_GM431946152.pdfIn PDF document text
    • http://baah.ca/images/haktuts-coin-master-today_GM406889139.pdfIn PDF document text
    • http://baah.ca/images/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://baah.ca/images/how-to-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://baah.ca/images/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://baah.ca/images/hacks-for-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • http://baah.ca/images/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://baah.ca/images/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://baah.ca/images/coin-master-free_GM406889139.pdfIn PDF document text
    • http://baah.ca/images/get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://baah.ca/images/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://baah.ca/images/hack-roblox-players_GM431946152.pdfIn PDF document text
    • http://baah.ca/images/minecraft-realms-free-codes_GM479516143.pdfIn PDF document text
    • http://baah.ca/images/mcpe-master-coins-hack_GM406889139.pdfIn PDF document text
    • http://baah.ca/images/hack-mod-coin-master_GM406889139.pdfIn PDF document text
    • http://baah.ca/images/free-coins-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://baah.ca/images/roblox-games-with-free-radio_GM431946152.pdfIn PDF document text
    • http://baah.ca/images/can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://baah.ca/images/daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://baah.ca/images/how-to-get-a-free-minecraft-account_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
stream_003_off0000483f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x483F 27112 bytes
SHA-256: 676f2fb5f2976d80e77fb9d44aef293ccb3f52f8c334e57153354eb318681f28
font_01_sfnt_off0000860b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x860B 18556 bytes
SHA-256: df154610b6efbd4d042b7dd8e86d5cfe30e06380d3f41432299740dca1959b28

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