Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e32207d0cfe06b6…

MALICIOUS

PDF

44.8 KB Created: 2021-05-19 07:32:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 99856bbbc16cd5eab61a1cd051e33f1a SHA-1: c8c74f064cd3897f48e99ebbcadd77eb64d5640a SHA-256: 2e32207d0cfe06b6970a3f2e1ebc42eef37091f5fcb7218441203d4261cb30f6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, specifically advertising game hacks and generators for popular games like Roblox and Coin Master. The ML classifier also flagged this PDF as malicious. The presence of embedded URLs and the lure content strongly suggest a phishing or scam attempt designed to lead users to malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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/roblox-apk-hack-game-hack In PDF document text
    • http://www.makoto.su/images/roblox-hacking-website_GM431946152.pdfIn PDF document text
    • http://www.makoto.su/images/coin-master-hack-pc-2021_GM406889139.pdfIn PDF document text
    • http://www.makoto.su/images/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • http://www.makoto.su/images/spin-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.makoto.su/images/roblox40com-robux_GM431946152.pdfIn PDF document text
    • http://www.makoto.su/images/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.makoto.su/images/how-to-get-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://www.makoto.su/images/pokemon-go-free-100-iv-map_GM1094591345.pdfIn PDF document text
    • http://www.makoto.su/images/minecraft-free-demo_GM479516143.pdfIn PDF document text
    • http://www.makoto.su/images/free-spins-coin-master-april-2021_GM406889139.pdfIn PDF document text
    • http://www.makoto.su/images/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • http://www.makoto.su/images/minecraft-116-1-download_GM479516143.pdfIn PDF document text
    • http://www.makoto.su/images/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.makoto.su/images/free-roblox-clothes-for-your-avatar_GM431946152.pdfIn PDF document text
    • http://www.makoto.su/images/free-robux-just-click_GM431946152.pdfIn PDF document text
    • http://www.makoto.su/images/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • http://www.makoto.su/images/free-robux-for-kids-no-verification_GM431946152.pdfIn PDF document text
    • http://www.makoto.su/images/how-to-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
    • http://www.makoto.su/images/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://www.makoto.su/images/apps-to-get-free-robux_GM431946152.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
font_00_sfnt_off0000471d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x471D 25632 bytes
SHA-256: 9e67a4e10c8024425d3eaaddfb99edeed7ba6d2de4a0227594d230156a90f620
font_01_sfnt_off0000825e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x825E 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off00008c49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C49 18356 bytes
SHA-256: 7e836b6261bebb63fda2bc6c603fa398fe0a548bc6334e21915c3f4956160db8