Malicious PDF — malware analysis report

Static analysis result for SHA-256 01425027349a33a7…

MALICIOUS

PDF

42.5 KB Created: 2021-05-11 22:02:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-23
MD5: 33610406f9a70149f7b9b7c418bc5121 SHA-1: 97a7568de0cf6af442e9b03fd547e899bd22eb0d SHA-256: 01425027349a33a791eedb3bb6b8c222d0de4b4f0872410e3fa2a71d8e1f145b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, disguised as "free generator" or "game hack" lures. The document body and embedded URLs promote various game-related cheats and hacks, aiming to trick users into visiting malicious sites. The presence of multiple malicious links and the ML classifier's high confidence score indicate a high likelihood of this document being used for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/431946152/free-robux-hacks-no-verification-game-hack In PDF document text
    • http://miperwanida.me/__statics/gudangsoal/files/minecraft-tower-defense-2-hacked_GM479516143.pdfIn PDF document text
    • http://miperwanida.me/__statics/gudangsoal/files/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://miperwanida.me/__statics/gudangsoal/files/minecraft-redeem-code-free-2021_GM479516143.pdfIn PDF document text
    • http://miperwanida.me/__statics/gudangsoal/files/free-roblox-toy-codes-2021_GM431946152.pdfIn PDF document text
    • http://miperwanida.me/__statics/gudangsoal/files/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
    • http://miperwanida.me/__statics/gudangsoal/files/100-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://miperwanida.me/__statics/gudangsoal/files/coin-master-free-online-game_GM406889139.pdfIn PDF document text
    • http://miperwanida.me/__statics/gudangsoal/files/coin-master-hack-apk-2021-ios_GM406889139.pdfIn PDF document text
    • http://miperwanida.me/__statics/gudangsoal/files/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • http://miperwanida.me/__statics/gudangsoal/files/pig-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://miperwanida.me/__statics/gudangsoal/files/coin-master-hack-that-actually-works_GM406889139.pdfIn PDF document text
    • http://miperwanida.me/__statics/gudangsoal/files/free-minecraft-pe-server_GM479516143.pdfIn PDF document text
    • http://miperwanida.me/__statics/gudangsoal/files/minecraft-hack-2021_GM479516143.pdfIn PDF document text
    • http://miperwanida.me/__statics/gudangsoal/files/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://miperwanida.me/__statics/gudangsoal/files/roblox-trolling_GM431946152.pdfIn PDF document text
    • http://miperwanida.me/__statics/gudangsoal/files/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
    • http://miperwanida.me/__statics/gudangsoal/files/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • http://miperwanida.me/__statics/gudangsoal/files/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • http://miperwanida.me/__statics/gudangsoal/files/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://miperwanida.me/__statics/gudangsoal/files/show-me-how-to-get-free-robux_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
stream_003_off000049f7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49F7 24752 bytes
SHA-256: 14bf2cfd8c6a32f255d2878e8d48802c7332506cc47f4411a76350b138d66cfa
font_01_sfnt_off0000825c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x825C 18772 bytes
SHA-256: addbd32849de550f6a3cbf56c70cbffa7cf804e2f09d57d2f784457513eafccd

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