Malicious PDF — malware analysis report

Static analysis result for SHA-256 b601d8e7351b8c05…

MALICIOUS

PDF

33.5 KB Created: 2021-06-19 03:18:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 0cfc4cc4d7f97ea265ed18b2bf2d3d7d SHA-1: 8eb2fdf3348dd724252418a55680f8ea4fc7a524 SHA-256: b601d8e7351b8c0514c2a28a751bc24055358dffba6207e8b4c2c42a24b78284
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links, with a primary link identified as a malicious redirector. This redirector is associated with lures for game hacks and free generators, indicating a social engineering tactic to entice users to click. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted, but the presence of malicious links and the lure suggest a phishing or scam 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 http://netcdn.co/app/431946152/free-bc-roblox-codes-game-hack In PDF document text
    • http://slims.abulyatama.ac.id/repository/tiktok-free-download-video_GM835599320.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-real-hack_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-spin-card-exchange-coin-master_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/minecraft-mods-download-free_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/games-that-can-be-hacked_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/pubg-uc-redeem_GM1330123889.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/master-coin-free-link_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/www-robux-us_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/noclip-hack-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-do-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-roblox-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-get-free-robux-in-5-seconds_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/como-hackear-coin-master_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/minecraft-ios-mods_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/how-to-get-roblox-premium-for-free_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/corrupt-free-roblox-torso_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-hack-version-2021-download_GM406889139.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_off00002dc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DC0 22156 bytes
SHA-256: e73e19db3cdff3cd2930139a38a23e16e81effa9f0e97eb423ca228f4a94c564
font_01_sfnt_off00005e9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E9B 18824 bytes
SHA-256: f239842202ed2546f92102b91513636bf83ba8f2c4ae42b381baa4ac21b44f20

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