Malicious PDF — malware analysis report

Static analysis result for SHA-256 a392e655d9b268cc…

MALICIOUS

PDF

34.3 KB Created: 2021-06-19 12:49:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 1cd29d643e1cc39d5dd25ecc87afc44e SHA-1: 20b20ddef1fd536ae98159198fbe7a98a46371d6 SHA-256: a392e655d9b268cc943977c42d53908ae3b934408c11688d9b37e9727e3a46fc
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.co/app/431946152/hacks-for-roblox-pastebin-game-hack PDF link annotation
    • https://wandpiraten.de/images/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • https://wandpiraten.de/images/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
    • https://wandpiraten.de/images/free-robux-obby_GM431946152.pdfIn PDF document text
    • https://wandpiraten.de/images/pokemon-go-free-coins-generator_GM1094591345.pdfIn PDF document text
    • https://wandpiraten.de/images/coin-master-hack-no-verification-no-signup_GM406889139.pdfIn PDF document text
    • https://wandpiraten.de/images/can-pokemon-go-free-account_GM1094591345.pdfIn PDF document text
    • https://wandpiraten.de/images/mcpe-master-hack-coins_GM406889139.pdfIn PDF document text
    • https://wandpiraten.de/images/roblox-dragon-ball-after-future-hack_GM431946152.pdfIn PDF document text
    • https://wandpiraten.de/images/free-minecraft-accounts-2021_GM479516143.pdfIn PDF document text
    • https://wandpiraten.de/images/omg-free-robux-hack-no-inspect-or-waiting_GM431946152.pdfIn PDF document text
    • https://wandpiraten.de/images/pokemon-go-free-friends_GM1094591345.pdfIn PDF document text
    • https://wandpiraten.de/images/robux-com-free_GM431946152.pdfIn PDF document text
    • https://wandpiraten.de/images/free-public-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://wandpiraten.de/images/coin-master-free-spins-and-free-coins_GM406889139.pdfIn PDF document text
    • https://wandpiraten.de/images/2-free-tacos-roblox_GM431946152.pdfIn PDF document text
    • https://wandpiraten.de/images/free-robux-no-scam-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://wandpiraten.de/images/free-spins-for-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://wandpiraten.de/images/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • https://wandpiraten.de/images/how-to-get-1b-free-robux_GM431946152.pdfIn PDF document text
    • https://wandpiraten.de/images/best-roblox-free-ex_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_off00002f98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F98 22128 bytes
SHA-256: d05a80769c846830970aa5c73e2442b57c67e357f6355f96d45b60dbab9c775b
font_01_sfnt_off00006092.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6092 19200 bytes
SHA-256: 403d791b37152ff145ba61cebec5fc20a9243f783d397b00a33d3b5e8ee39b35

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