Malicious PDF — malware analysis report

Static analysis result for SHA-256 038c29d600b641ca…

MALICIOUS

PDF

35.4 KB Created: 2021-07-06 02:13:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 3341dd4dd4bbfd96162a1491f4cd8650 SHA-1: e151960bca6d58b40bd3b942d0c8f091b2e7edce SHA-256: 038c29d600b641ca965bc6c90e2207ec3358dfa37f4945a39fe33939f9fa21da
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a game hack redirect lure, pointing to malicious infrastructure. The document body and embedded URLs reinforce this, suggesting the primary goal is to trick users into visiting a malicious site. No scripts were extracted, but the PDF structure itself facilitates the malicious 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.tw/app/479516143/minecraft-server-free-trial-game-hack In PDF document text
    • https://www.e-learning-min8jakarta.com/__statics/gudangsoal/files/how-to-get-free-brown-hair-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.e-learning-min8jakarta.com/__statics/gudangsoal/files/how-to-hack-a-roblox-account-back_GM431946152.pdfIn PDF document text
    • https://www.e-learning-min8jakarta.com/__statics/gudangsoal/files/is-roblox-free-on-pc_GM431946152.pdfIn PDF document text
    • https://www.e-learning-min8jakarta.com/__statics/gudangsoal/files/is-roblox-100-cheat-ingine-patched_GM431946152.pdfIn PDF document text
    • https://www.e-learning-min8jakarta.com/__statics/gudangsoal/files/can-i-hack-coin-master-with-lucky-patcher_GM406889139.pdfIn PDF document text
    • https://www.e-learning-min8jakarta.com/__statics/gudangsoal/files/how-to-hack-roblox-on-mobile_GM431946152.pdfIn PDF document text
    • https://www.e-learning-min8jakarta.com/__statics/gudangsoal/files/roblox-vehicle-simulator-money-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.e-learning-min8jakarta.com/__statics/gudangsoal/files/ho9w-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.e-learning-min8jakarta.com/__statics/gudangsoal/files/how-do-i-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.e-learning-min8jakarta.com/__statics/gudangsoal/files/pig-master-coin-master-free-spin_GM406889139.pdfIn PDF document text
    • https://www.e-learning-min8jakarta.com/__statics/gudangsoal/files/free-tiktok-likes_GM835599320.pdfIn PDF document text
    • https://www.e-learning-min8jakarta.com/__statics/gudangsoal/files/how-to-get-free-robux-with-roblox-gift-word-press_GM431946152.pdfIn PDF document text
    • https://www.e-learning-min8jakarta.com/__statics/gudangsoal/files/how-to-hack-someone-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.e-learning-min8jakarta.com/__statics/gudangsoal/files/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.e-learning-min8jakarta.com/__statics/gudangsoal/files/free-robux-mod_GM431946152.pdfIn PDF document text
    • https://www.e-learning-min8jakarta.com/__statics/gudangsoal/files/download-cheat-roblox-mod-apk_GM431946152.pdfIn PDF document text
    • https://www.e-learning-min8jakarta.com/__statics/gudangsoal/files/free-robux-easy-and-fast_GM431946152.pdfIn PDF document text
    • https://www.e-learning-min8jakarta.com/__statics/gudangsoal/files/minecraft-noob-vs-pro-vs-hacker_GM479516143.pdfIn PDF document text
    • https://www.e-learning-min8jakarta.com/__statics/gudangsoal/files/how-to-hack-on-roblox-adopt-me_GM431946152.pdfIn PDF document text
    • https://www.e-learning-min8jakarta.com/__statics/gudangsoal/files/roblox-business-simulator-cheat_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_off00003643.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3643 22788 bytes
SHA-256: 1c2e43290aeab609b9afb2ccc5e5563ef16ac21a63727ccebf5bbe1e0c36ec65
font_01_sfnt_off00006892.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6892 18044 bytes
SHA-256: 5a296e18dbf65f04870817c9dd6793c8643020e9f41ce66c5e33f12cc84b0da1

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