Malicious PDF — malware analysis report

Static analysis result for SHA-256 f01934387fe54a3b…

MALICIOUS

PDF

35.9 KB Created: 2021-07-06 03:20:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 96e4a4aaaa389ea0979e48f788c2c920 SHA-1: 6e70d9f29adbc09d02c6f4d696d62f44cb7f350d SHA-256: f01934387fe54a3b0f9e77ff55839d5b981ad74f297d2749f998ee4b6d225911
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users into clicking on what appear to be game hack generators or free currency sites. The primary link redirects to known malicious infrastructure, indicating a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect users to potentially malicious websites, likely for credential harvesting or malware delivery.

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/431946152/get-free-robux-generator-game-hack In PDF document text
    • https://e-learning.mtsduktb.com/__statics/gudangsoal/files/coin-master-pc-hack_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsduktb.com/__statics/gudangsoal/files/roblox-blox-no-hero-academia-hack_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsduktb.com/__statics/gudangsoal/files/free-minecraft-gift-card_GM479516143.pdfIn PDF document text
    • https://e-learning.mtsduktb.com/__statics/gudangsoal/files/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsduktb.com/__statics/gudangsoal/files/roblox-how-to-get-free-clothes_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsduktb.com/__statics/gudangsoal/files/minecraft-toolbox-premium-apk_GM479516143.pdfIn PDF document text
    • https://e-learning.mtsduktb.com/__statics/gudangsoal/files/roblox-rape-hack_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsduktb.com/__statics/gudangsoal/files/free-robux-codes-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsduktb.com/__statics/gudangsoal/files/coin-master-hack-co_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsduktb.com/__statics/gudangsoal/files/how-to-get-free-robux-on-iphone-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsduktb.com/__statics/gudangsoal/files/twitter-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsduktb.com/__statics/gudangsoal/files/how-to-earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsduktb.com/__statics/gudangsoal/files/free-minecraft-skins_GM479516143.pdfIn PDF document text
    • https://e-learning.mtsduktb.com/__statics/gudangsoal/files/free-hoodie-roblox_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsduktb.com/__statics/gudangsoal/files/free-spins-coin-master-unlimited_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsduktb.com/__statics/gudangsoal/files/roblox-gift-card-online-free_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsduktb.com/__statics/gudangsoal/files/hack-coin-master-pc_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsduktb.com/__statics/gudangsoal/files/android-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsduktb.com/__statics/gudangsoal/files/spin-and-coin_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsduktb.com/__statics/gudangsoal/files/free-roblox-vip-servers_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_off00003576.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3576 22716 bytes
SHA-256: 77c2088ecddcd64998a90181baa6ee0354901d6edff4e4d437c13d969dfe1c39
font_01_sfnt_off00006803.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6803 18820 bytes
SHA-256: 3cf5f9b00a39f0cfcbee830171857ad484f6534b8809920e240be9eaf31d3faa

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