Malicious PDF — malware analysis report

Static analysis result for SHA-256 e27f2656e9769cc7…

MALICIOUS

PDF

34.6 KB Created: 2021-07-09 11:17:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: fb864781ec7c1b754a65982d3fc1024e SHA-1: 11f81a150556e3bc2e5e3d3b991aa21884f53ea2 SHA-256: e27f2656e9769cc7aa14c75d06acbc1b1e0c4ad93ed0c3223d8afce0148a565f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

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/406889139/100-free-spins-coin-master-game-hack PDF link annotation
    • https://tecturatw.com/image/data/files/how-to-enter-cheat-codes-on-roblox_GM431946152.pdfIn PDF document text
    • https://tecturatw.com/image/data/files/free-minecraft-account-list_GM479516143.pdfIn PDF document text
    • https://tecturatw.com/image/data/files/www-rbx-com_GM431946152.pdfIn PDF document text
    • https://tecturatw.com/image/data/files/google-play-free-robux_GM431946152.pdfIn PDF document text
    • https://tecturatw.com/image/data/files/coin-master-hack-link_GM406889139.pdfIn PDF document text
    • https://tecturatw.com/image/data/files/free-minecraft-website_GM479516143.pdfIn PDF document text
    • https://tecturatw.com/image/data/files/pokemon-go-free-30-ultra-balls_GM1094591345.pdfIn PDF document text
    • https://tecturatw.com/image/data/files/robux-earning-sites_GM431946152.pdfIn PDF document text
    • https://tecturatw.com/image/data/files/coin-master-free-spins-link-today-blogspot_GM406889139.pdfIn PDF document text
    • https://tecturatw.com/image/data/files/master-free-spin-and-coin-links-html-m-1_GM406889139.pdfIn PDF document text
    • https://tecturatw.com/image/data/files/how-to-hack-a-group-on-roblox-to-own-it_GM431946152.pdfIn PDF document text
    • https://tecturatw.com/image/data/files/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://tecturatw.com/image/data/files/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://tecturatw.com/image/data/files/roblox-music-player-hack-2021_GM431946152.pdfIn PDF document text
    • https://tecturatw.com/image/data/files/free-printable-roblox-miniature-chocolate_GM431946152.pdfIn PDF document text
    • https://tecturatw.com/image/data/files/how-to-get-free-robux-inspect_GM431946152.pdfIn PDF document text
    • https://tecturatw.com/image/data/files/how-i-get-robux-free_GM431946152.pdfIn PDF document text
    • https://tecturatw.com/image/data/files/coin-master-hack-app-2021_GM406889139.pdfIn PDF document text
    • https://tecturatw.com/image/data/files/i-need-robux_GM431946152.pdfIn PDF document text
    • https://tecturatw.com/image/data/files/roblox-free-draw_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_002_off00002fd9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2FD9 23104 bytes
SHA-256: 636a95adadb2b6a2710989b7e6b28f00b49e26fcdbbaa4e5f7c1a81c9f083fd4
font_01_sfnt_off000063eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63EB 18452 bytes
SHA-256: d0c04ff51ad59f6355ad4f24aeb86ad145506544650f67de66568f082738138f

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