Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c675386a20a4ae2…

MALICIOUS

PDF

34.1 KB Created: 2021-07-05 14:32:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: f6ccc921fd6181c40d724799518b6f53 SHA-1: 46e6b37a9e2191be77db5e06d5170fc920bd7dd0 SHA-256: 2c675386a20a4ae20d819f821d2a5e32dbe480959e24735222bddd25fcd7dbd4
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/freerobuxhack-us-2021-game-hack PDF link annotation
    • http://stitqi.ac.id/website/repository/get-free-roblox-followers_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-vilicus-roblox-tablet_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/hes-hacking-roblox-phantom-forces_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-to-get-free-robux-2021-easy-no-inspect_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/how-to-get-free-robux-on-android_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/robux-hack-me_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/roblox-devil_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/robux-2021_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/what-do-roblox-points-do_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/scary-larry-roblox_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/hacked-roblox-game_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-masks-in-roblox_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/com-roblox_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-robux-pin-codes_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-to-complete-a-survey-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-attack-madness-hack_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/free-google-play-promo-codes-coin-master_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-to-hack-roblox-with-lucky-patcher-2021_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_off00002ca5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CA5 22568 bytes
SHA-256: bfb45c00d3cc3350e03c47235c60cb09e1795388470d6bce72e46fa1e6c776b3
font_01_sfnt_off00005f18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F18 19452 bytes
SHA-256: 43b81a284332bbcce6e172d110dbc1a63e46633337d5d3ab3430c81f8a1ab5e6

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