Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f7ae61af9f129b9…

MALICIOUS

PDF

35.1 KB Created: 2021-06-23 13:23:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 5430698e0d712983a67a7791113a32a4 SHA-1: 361993a02131e96d82abd2d921d5eaf3159c4be9 SHA-256: 5f7ae61af9f129b94bbce5af53f395cc60236c2dcd7002adaa7eacae00c8b5a6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting game hacks and free in-game currency. The primary redirector URL is http://netcdn.co/app/431946152/synapse-x-hack-roblox-game-hack. This lure is a common tactic to trick users into downloading malware or visiting phishing sites. No scripts were extracted, but the document's structure and embedded links strongly indicate a malicious intent.

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/synapse-x-hack-roblox-game-hack In PDF document text
    • http://slims.abulyatama.ac.id/repository/free-roblox-adopt-me-accounts_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/this-group-gives-free-robux_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-tiktok-followers-2021_GM835599320.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/rbx-land-free-robux_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/ways-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/how-to-hack-a-minecraft-account_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-robux-not-fake_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/spin-link-coin-master_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-jailbreak-hack-download_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-free-spins-link-today-hack_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/get-roebucks-com_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-anti-cheat-bypass_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-hack-dusk-autinum-islands-roblox_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/free-roblox-toy-codes-not-used_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/tiktok-free-download-for-pc-windows-7_GM835599320.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/minecraft-free-demo_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-free-robux-website_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_off00003270.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3270 22312 bytes
SHA-256: e126134d74a75795ae54ff5cd3a46bba005e0e9a1a6bca5c1d3874ea1740e9b2
font_01_sfnt_off0000640e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x640E 19012 bytes
SHA-256: 43e6c9585413135dff23b1a01da0e08dfcca0efe623d586381ecacf95a73d4c8

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