Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8e561ccc3d6bd0b…

MALICIOUS

PDF

34.3 KB Created: 2021-06-19 19:42:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 27c73548751f65f32d71ccc4fbbf95d8 SHA-1: 45d567d58fc6cacb9a1487f209cb6d4d781b2729 SHA-256: d8e561ccc3d6bd0ba1d05307fc65b1bd4e4cf5e98fe7f367f5ba2c466d5083e8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that lead to a known malicious redirector, disguised as a generator for game hacks. The document body and heuristics confirm the lure is for game-related cheats, specifically mentioning 'hack para Dragon Ball Z Rage Roblox'. The primary IOC is the malicious redirector URL, which is likely used to serve further malicious content or lead to phishing sites.

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/hack-para-dragon-ball-z-rage-roblox-game-hack In PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/100-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/free-robux-forumscom_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/roblox-old-avatar_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/free-premium-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/rare-free-links-to-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/coin-master-mod-apk-latest-hack-with-unlimited-free-spins_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/free-robux-pin-codes_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/minecraft-free-education_GM479516143.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/tiktok-likes-for-free_GM835599320.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/hack-coin-master-game-download_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/roblox-bux-free_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/coin-master-200-spin-link_GM406889139.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/granny-roblox-hack-script_GM431946152.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/minecraft-hacks-18-9_GM479516143.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/hacks-for-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/how-to-get-minecraft-for-free-ios_GM479516143.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id/repository/minecraft-pocket-edition-hack_GM479516143.pdfIn PDF document text
    • http://perpus.poltekeskupang.ac.id//repository/earn-robux-for-roblox_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_off00002fa3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FA3 22128 bytes
SHA-256: 296efdc68e8c36c4db23765c38aa629b5d9d0d4e16e84179e927f57efe456024
font_01_sfnt_off000060b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60B5 19072 bytes
SHA-256: 984298d022f5e7b12edb1bfc4f2624137a31d5be9c82d99efa8051a311eae7d3

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