Malicious PDF — malware analysis report

Static analysis result for SHA-256 bbd05439f1b6801f…

MALICIOUS

PDF

33.9 KB Created: 2021-07-06 05:58:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 60ee4e5e7bfd22f441d3ab6ec3def597 SHA-1: aad4088dc1cd831e00149336016ca5b1b2d72bc7 SHA-256: bbd05439f1b6801f957e826b9943b2a4842c930b286ae6d7b61d1d7c8c77d184
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/431946152/roblox-tracker-game-hack PDF link annotation
    • http://sttlets.education/senayan//repository/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/robux-win-free_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/lots-of-robux_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/new-free-items-on-roblox-promocode-november-2021_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-robux-please_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/is-pokemon-go-free-on-iphone_GM1094591345.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-to-hack-peoples-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/get-free-robux-com_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/freemobile24-com-free-robux_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-to-get-free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/autoclicker-free-for-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/how-many-villages-are-in-coin-master_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/roblox-why-cant-audio-be-free_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/coin-master-free-100-spin-link_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/jailbreak-roblox-hack-dll_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/roblox-hack-pour-passer-a-travers-les-murs-2021_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/coin-master-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/hack-coin-master-app_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/minecraft-bedrock-edition-pc-free_GM479516143.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_off00002f2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F2A 22216 bytes
SHA-256: 8eb60a4d67f6c85d6047d7f2fe2ac546abdd2947536ae4f0fe326eb001ba93b6
font_01_sfnt_off00006066.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6066 18656 bytes
SHA-256: 610110891d67b7bd301a863f244ee12569d530ac85197f9b3a3b1767b40d8b41

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