Malicious PDF — malware analysis report

Static analysis result for SHA-256 c25850c07f2e3636…

MALICIOUS

PDF

34.0 KB Created: 2021-06-26 23:04:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 8bd66680dd99d01f679547d9107873e7 SHA-1: 1d3cd7e825ada586fd744a9b618ad889fbdfc981 SHA-256: c25850c07f2e363648a30636cf133d1abb2411300b1001321769fc922b9fb5f6
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/como-hackear-en-roblox-game-hack PDF link annotation
    • http://parsbaft.com/images/assassin-roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/cool-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://parsbaft.com/images/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/instant-free-robux-com_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
    • http://parsbaft.com/images/how-to-download-roblox-walk-through-walls-hack_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/comment-hack-quelquun-roblox_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/minecraft-dungeons-free-download_GM479516143.pdfIn PDF document text
    • http://parsbaft.com/images/codes-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/how-to-get-400-free-robux_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/how-to-ban-people-on-roblox-without-cheat-engine-commands_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/roblox-download-pc-free_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/minecraft-noob-vs-pro-vs-hacker-vs-god_GM479516143.pdfIn PDF document text
    • http://parsbaft.com/images/rbx-hut_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/free-robux-real-working_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/coin-master-free-spins-2021-blogspot_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/how-do-you-earn-robux_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • http://parsbaft.com/images/coin-master-free-spin-realme-products_GM406889139.pdfIn PDF document text
    • http://parsbaft.com/images/coin-master-free-spin-and-coin-link-2021-today_GM406889139.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_off00002d46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D46 22736 bytes
SHA-256: 01b0fb07d4cabd850945c02c701c3305836d4aa8ce8c10b7e47766585a1bbfe2
font_01_sfnt_off0000603b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x603B 18916 bytes
SHA-256: 52383cf3e735bc973876957a458dcb1ad7ca0fd79a81c05ec0892e36f19da389

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