Malicious PDF — malware analysis report

Static analysis result for SHA-256 32ace20d3013ee40…

MALICIOUS

PDF

45.2 KB Created: 2021-05-13 02:00:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20
MD5: fb12dffdd20088c915664fe4233e8d37 SHA-1: 0f296433f6ef4a481b587810caec228277916fb3 SHA-256: 32ace20d3013ee402e643a36c829dd1afb0a05c9992b37fb115051f7ee0b390a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to malicious infrastructure, specifically promoting 'free generators' for popular games. The heuristic firings indicate a malicious redirector link and a lure for game hacks. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to lead the user to a malicious website, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9551

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 https://netcdn.xyz/app/406889139/coin-master-hack-android-game-hack In PDF document text
    • https://www.ramsburyestates.co.uk/uploads/files/files/free-hair-roblox_GM431946152.pdfIn PDF document text
    • https://www.ramsburyestates.co.uk/uploads/files/files/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.ramsburyestates.co.uk/uploads/files/files/coin-master-daily-spin-link_GM406889139.pdfIn PDF document text
    • https://www.ramsburyestates.co.uk/uploads/files/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://www.ramsburyestates.co.uk/uploads/files/files/free-roblox-boy-hair_GM431946152.pdfIn PDF document text
    • https://www.ramsburyestates.co.uk/uploads/files/files/coin-master-70-spin-link_GM406889139.pdfIn PDF document text
    • https://www.ramsburyestates.co.uk/uploads/files/files/free-robux-kid-friendly_GM431946152.pdfIn PDF document text
    • https://www.ramsburyestates.co.uk/uploads/files/files/coinmaster-twitter_GM406889139.pdfIn PDF document text
    • https://www.ramsburyestates.co.uk/uploads/files/files/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.ramsburyestates.co.uk/uploads/files/files/coin-master-hack-iosgods_GM406889139.pdfIn PDF document text
    • https://www.ramsburyestates.co.uk/uploads/files/files/coin-master-cheat-to-get-free-spins_GM406889139.pdfIn PDF document text
    • https://www.ramsburyestates.co.uk/uploads/files/files/free-robux-discord-servers_GM431946152.pdfIn PDF document text
    • https://www.ramsburyestates.co.uk/uploads/files/files/free-robux-no-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://www.ramsburyestates.co.uk/uploads/files/files/master-coins-free_GM406889139.pdfIn PDF document text
    • https://www.ramsburyestates.co.uk/uploads/files/files/coin-master-hack-app-android_GM406889139.pdfIn PDF document text
    • https://www.ramsburyestates.co.uk/uploads/files/files/free-roblox-adopt-me-pets_GM431946152.pdfIn PDF document text
    • https://www.ramsburyestates.co.uk/uploads/files/files/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • https://www.ramsburyestates.co.uk/uploads/files/files/coin-master-website_GM406889139.pdfIn PDF document text
    • https://www.ramsburyestates.co.uk/uploads/files/files/coin-master-hack-app-ios_GM406889139.pdfIn PDF document text
    • https://www.ramsburyestates.co.uk/uploads/files/files/legitimate-coin-master-free-spins-apk_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c9a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C9A 25484 bytes
SHA-256: 02871dbd43e7c88d829e4d829b6f3a154ae61bfe81e7d88523ccbde7a9fb8918
font_01_sfnt_off000085af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85AF 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00008f60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F60 17888 bytes
SHA-256: a3f3c6358bf6c689f14a31b2bec7c705949e82e1ea95935703b782b8d0a54cd0

Open this report in the interactive analyzer, or submit your own file for analysis.