Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d727370e51622df…

MALICIOUS

PDF

34.5 KB Created: 2021-06-25 14:40:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 5af8fbd98e4bc778d153d718a28362a0 SHA-1: aedf56863d254649da537adfebb1c149656e7881 SHA-256: 6d727370e51622df9f5f479eada20cf6eec523f80773e6f0104aec2a7a4012f7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded links designed to lure users into clicking on them by promising free in-game currency or hacks for popular games like Roblox. The primary link, http://netcdn.co/app/431946152/roblox-fe-hack-game-hack, is identified as a malicious redirector. The document's content and heuristics strongly suggest a phishing or scam attempt to redirect users to potentially harmful websites.

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/roblox-fe-hack-game-hack In PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/how-to-get-creative-mode-in-minecraft-server-hack_GM479516143.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/inappropriate-roblox-games_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/coin-master-32-hack-apk_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/coin-master-hack-xyz-2021_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/how-to-get-free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/free-backpacks-in-roblox_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/roblox-john-doe-when-they-hack_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/are-there-any-free-sword-on-roblox_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/roblox-blox-pice-hacks_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/seniac-roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/roblox-hack-kostenlos_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/roblox-free-items-exploit_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/roblox-svg-free_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/arsenal-hacks-roblox_GM431946152.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/coin-master-fan-hack_GM406889139.pdfIn PDF document text
    • https://slims.bakrie.ac.id/textbook/repository/free-roblox-followers_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_off000030c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30C5 22504 bytes
SHA-256: da77af0a3a03d6776f9e41c369262e9c2c359f798d984cd7b274a0c11f40bc96
font_01_sfnt_off000062bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62BD 18820 bytes
SHA-256: 009ef46be37b53bca08a23de27363bc2ae03027b350c63b415ab0b7792763f43

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