Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6ff792b5cdadbfd…

MALICIOUS

PDF

40.1 KB Created: 2021-05-21 04:59:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: b589083f4b19950265a3cf6d9c9dd3c0 SHA-1: c6513204dd4fe4852c4b91eebcdd0cfc9c5b9d9e SHA-256: a6ff792b5cdadbfdb4b7ac443e4cd433c6376bed7cc9515d504293301cd10fbd
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 0.8010

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 https://netcdn.xyz/app/479516143/how-to-make-your-own-minecraft-server-for-free-game-hack PDF link annotation
    • http://www.lorengntb.com/new/public/ckfinder/userfiles/files/pokemon-go-free-friends_GM1094591345.pdfIn PDF document text
    • http://www.lorengntb.com/new/public/ckfinder/userfiles/files/free-robux-just-enter-username_GM431946152.pdfIn PDF document text
    • http://www.lorengntb.com/new/public/ckfinder/userfiles/files/coin-master-online-hack_GM406889139.pdfIn PDF document text
    • http://www.lorengntb.com/new/public/ckfinder/userfiles/files/static-moonactive-net-rewards_GM406889139.pdfIn PDF document text
    • http://www.lorengntb.com/new/public/ckfinder/userfiles/files/pokemon-go-free-accounts-2021_GM1094591345.pdfIn PDF document text
    • https://freegiftcodes.euIn PDF document text
    • https://playhack.in/minecraftIn 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
stream_002_off0000360e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x360E 25776 bytes
SHA-256: 1a8b7868c6480659847adfa0d7058e11dd47bfc6dd316a9e551a5d772708b2cc
font_01_sfnt_off000070f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70F3 2900 bytes
SHA-256: 6ada37bb84bd924db18ca1170eae3c2cde3c3298b1c4a8fd378fffac0586ca52
font_02_sfnt_off00007af7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AF7 18460 bytes
SHA-256: 43abef8b834297908dc205ac191a436a457546b124377fb637ef7db2584f74fc

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