Malicious PDF — malware analysis report

Static analysis result for SHA-256 f22a0b3eb9cf7040…

MALICIOUS

PDF

35.3 KB Created: 2021-06-30 23:44:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: fd921aa045c8c43fef349c8ce85ccc8f SHA-1: 092536d44d2184b7f79f1ef4f5ee776a3ab8cea8 SHA-256: f22a0b3eb9cf7040d8277b031a9537593a96604660109d4e6a198b2fa29977d3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, masquerading as game hacks and cheats. The document body and embedded URLs suggest a lure for users seeking advantages in games like Roblox and Coin Master. The primary malicious activity observed is the redirection to known malicious domains, likely to host further malware or phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/roblox-lumber-tycoon-cheats-game-hack In PDF document text
    • http://falconshipping-uae.com/userfiles/files/free-spins-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/roblox-games-to-play-for-free_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/roblox-hack-com_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/is-there-an-actual-hack-that-work-for-coin-master_GM406889139.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/can-you-host-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/how-do-you-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/how-to-hack-coin-master-game_GM406889139.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/free-back-accessories-roblox_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/minecraft-story-mode-free-download_GM479516143.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/coin-master-free-bonus_GM406889139.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/dbz-final-stand-roblox-cheats_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/how-to-get-800-robux-for-free_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/free-robux-promise_GM431946152.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/minecraft-dungeons-free-download_GM479516143.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/pubg-2021-uc-redeem-code_GM1330123889.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/coin-master-free-2021-spin-link-today_GM406889139.pdfIn PDF document text
    • http://falconshipping-uae.com/userfiles/files/free-minecraft-capes_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_off000034d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34D9 21468 bytes
SHA-256: b03ead595a4d39187631842001df96a0cd906e481218d999df0262fc1e92e16f
font_01_sfnt_off000063fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63FD 19336 bytes
SHA-256: bcc6dd927f48396fece5b6c9e63e7b76b523f64688e1509dcc7b36ee65051e3b

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