Malicious PDF — malware analysis report

Static analysis result for SHA-256 69845cb6297267b6…

MALICIOUS

PDF

35.2 KB Created: 2021-07-06 13:43:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22
MD5: de873b08c53955c60c13c90eecf1bb21 SHA-1: 16cfcd792421d23b398d730ba8d960511ffa6976 SHA-256: 69845cb6297267b6a766985248458939d2e14f8d5ea7052d68f69ad2d3bf1742
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of free game hacks and in-game currency to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which likely serves as a gateway to further malicious content or malware. The document's content and embedded URLs strongly suggest a phishing or scam campaign aimed at users seeking cheats for popular games.

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-bedrock-free-with-java-game-hack In PDF document text
    • http://library.stieyapan.ac.id//repository/how-to-get-free-robux-as-a-kid_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/robux-free-online_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/i-need-robux_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/how-can-you-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/how-to-ban-people-from-servers-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/minecraft-apk-114-4_GM479516143.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/free-money-links-coin-master_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/free-robux-easy-cheat_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/coin-master-spins-hack-2021_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/elemental-wars-roblox-cheats_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/free-roblox-card-codes_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/free-roblox-tank-top_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/spin-coin-master_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/how-to-download-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/coin-master-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/blox-world-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id//repository/coin-master-spin-hack-2021_GM406889139.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/easy-robux-hack_GM431946152.pdfIn PDF document text
    • http://library.stieyapan.ac.id/repository/roblox-bubblegum-simulator-cheats_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_off0000334b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x334B 22316 bytes
SHA-256: 8a0d66eb73992565280f2049bedeeba3a4cf39ec82538ca99a1c96c2388c0ad4
font_01_sfnt_off00006479.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6479 19204 bytes
SHA-256: 83f28f522109b57a387354fb29e9d473d9efeebf56f50fcbd96710e633a7f7ef

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