Malicious PDF — malware analysis report

Static analysis result for SHA-256 34c2d80509654eef…

MALICIOUS

PDF

35.2 KB Created: 2021-06-25 14:20:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31
MD5: ed60dfb6d07e53d826a6b0cd19d65634 SHA-1: 595a4ee72c4c4805365ffb60e4f9d38c921aee84 SHA-256: 34c2d80509654eef5d7a53db0d9e2e1f42db1d99caac5d576bee990a5d146858
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure for free game currency or hacks, directing users to a known malicious redirector. The embedded URLs and document body content strongly suggest a phishing or scam attempt designed to lead users to potentially harmful websites. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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/how-to-get-free-robux-no-verifying-game-hack In PDF document text
    • http://elibrary.smknesbu.sch.id/repository/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/free-robux-generator-no-human-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/is-free-robux-real_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/roblox-arsenal-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/coin-master-free-spin-group_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/how-to-get-free-cards-sets-for-coin-master_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/minecraft-pocket-edition-free_GM479516143.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/roblox-how-to-get-free-bc-with-cheat-engine_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/claim-free-robux_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/download-cheat-roblox-jailbreak-for-pc_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/how-to-hack-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/how-you-get-robux_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/roblox-hack-safe-download_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/2021202168-roblox-code-hack_GM431946152.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_off000031ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31FF 22248 bytes
SHA-256: f206fa7713a82397c79a27e593947cf9ad1d4e9b61559cb75db48407653c7de3
font_01_sfnt_off0000632e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x632E 19416 bytes
SHA-256: 8c2e94726b153fd600c37026e058296ac7e6089c9ad39c82bf27424cb3f594a9

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