Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb04c2d5d9b4cce7…

MALICIOUS

PDF

46.7 KB Created: 2021-06-08 17:56:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: e597b9de4a0e01b90102f8a85f2f6999 SHA-1: 851e70f8c22d19c7a6132dc320a534ac536598ef SHA-256: bb04c2d5d9b4cce7ac9f4715229019bd3dd4e8711517a4e43a82125884dd9f14
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, disguised as "game hacks" and "free generators". The document body and embedded URLs suggest a lure to trick users into visiting these sites, likely to download further malware or engage in phishing. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9748

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 https://netcdn.tw/app/431946152/roblox-sad-cheating-story-game-hack In PDF document text
    • http://arpinoturismo.it/images/coin-master-hack-apk-latest-version-2021_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/pubg-uc-2021_GM1330123889.pdfIn PDF document text
    • http://arpinoturismo.it/images/minecraft-free-download-windows-10_GM479516143.pdfIn PDF document text
    • http://arpinoturismo.it/images/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/coin-master-free-spins-link-march-2021_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/r-roblox-free_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/free-minecraft-bedrock-server-hosting_GM479516143.pdfIn PDF document text
    • http://arpinoturismo.it/images/free-roblox-girl-clothes_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/free-custom-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://arpinoturismo.it/images/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://arpinoturismo.it/images/minecraft-free-computer-game_GM479516143.pdfIn PDF document text
    • http://arpinoturismo.it/images/coin-master-free-spin-reward-links_GM406889139.pdfIn PDF document text
    • http://arpinoturismo.it/images/ways-to-make-free-robux_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://arpinoturismo.it/images/minecraft-free-android_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004cde.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CDE 25144 bytes
SHA-256: 4e5f2b858ea557bc117c38f3eaebeaf85d1972e43c3f1224f0b4e0c27850f19b
font_01_sfnt_off00008698.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8698 3056 bytes
SHA-256: 7a7f8d909b3dd3d2f1132e4be24cdcadf5317daa0e5020c7b775491073c67be5
font_02_sfnt_off00009134.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9134 19044 bytes
SHA-256: d621f2959f3f55822988807fb28c448e14f946eedd0c1dcbbe88b65787701103

Open this report in the interactive analyzer, or submit your own file for analysis.