Malicious PDF — malware analysis report

Static analysis result for SHA-256 04ff605794546d0e…

MALICIOUS

PDF

44.6 KB Created: 2021-05-13 10:10:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: bd50f6ea6099ee270534a813d29c832b SHA-1: da8c056ec469f5d0849269b0b7ed4c1a3073cca5 SHA-256: 04ff605794546d0e8eaebe07fa9410c8e2ea90cb14fcb158a221d2524b367303
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically advertising 'free Robux' or game hacks. The embedded URL https://netcdn.xyz/app/431946152/free-robux-without-downloading-apps-game-hack is flagged as malicious. The document body, though partially corrupted, contains similar lure text and URLs, reinforcing the phishing attempt.

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 https://netcdn.xyz/app/431946152/free-robux-without-downloading-apps-game-hack In PDF document text
    • https://www.midrarreservations.com/uploaded_files/userfiles/files/best-free-robux-sites_GM431946152.pdfIn PDF document text
    • https://www.midrarreservations.com/uploaded_files/userfiles/files/how-to-hack-coin-master-spin-ios_GM406889139.pdfIn PDF document text
    • https://www.midrarreservations.com/uploaded_files/userfiles/files/minecraft-bedrock-free_GM479516143.pdfIn PDF document text
    • https://www.midrarreservations.com/uploaded_files/userfiles/files/free-robux-offers_GM431946152.pdfIn PDF document text
    • https://www.midrarreservations.com/uploaded_files/userfiles/files/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
    • https://www.midrarreservations.com/uploaded_files/userfiles/files/how-to-free-robux_GM431946152.pdfIn PDF document text
    • https://www.midrarreservations.com/uploaded_files/userfiles/files/how-to-get-free-pet-snacks-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.midrarreservations.com/uploaded_files/userfiles/files/coin-master-twitter_GM406889139.pdfIn PDF document text
    • https://www.midrarreservations.com/uploaded_files/userfiles/files/get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.midrarreservations.com/uploaded_files/userfiles/files/how-to-hack-roblox_GM431946152.pdfIn PDF document text
    • https://www.midrarreservations.com/uploaded_files/userfiles/files/roblox-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.midrarreservations.com/uploaded_files/userfiles/files/free-robux-no-download_GM431946152.pdfIn PDF document text
    • https://www.midrarreservations.com/uploaded_files/userfiles/files/coin-master-free-spins-16-04-19_GM406889139.pdfIn PDF document text
    • https://www.midrarreservations.com/uploaded_files/userfiles/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.midrarreservations.com/uploaded_files/userfiles/files/coin-master-33-hack-version-download_GM406889139.pdfIn PDF document text
    • https://www.midrarreservations.com/uploaded_files/userfiles/files/coin-master-free-spins-link-deutsch-ios_GM406889139.pdfIn PDF document text
    • https://www.midrarreservations.com/uploaded_files/userfiles/files/daily-free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • https://www.midrarreservations.com/uploaded_files/userfiles/files/minecraft-free-download-iphone_GM479516143.pdfIn PDF document text
    • https://www.midrarreservations.com/uploaded_files/userfiles/files/minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • https://www.midrarreservations.com/uploaded_files/userfiles/files/blox-fun-info_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a5b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A5B 26372 bytes
SHA-256: 8aa5771720abc4638be0de3afb2f73e8dd51d05b64caf9d33d54094b3102c386
font_01_sfnt_off00008758.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8758 19876 bytes
SHA-256: 7dd9be13e4665f5a35086e4b23dd28e6d3ecc39135d95cb28b9ae9c86552181a

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