Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f94aad6b6fbb404…

MALICIOUS

PDF

34.0 KB Created: 2021-06-20 11:00:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-22
MD5: ba9a3129f05097d65b003162ef30272c SHA-1: 5229cdebbf017ee2b63800f2ab637e4113c36207 SHA-256: 2f94aad6b6fbb404fcefa421814bee3abe47b6e4545c7dff98d52a733d6864a8
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/free-game-card-roblox-codes-game-hack PDF link annotation
    • http://pia2000.net/images/how-to-hack-roblox-murder-mystery_GM431946152.pdfIn PDF document text
    • http://pia2000.net/images/minecraft-apk-114_GM479516143.pdfIn PDF document text
    • http://pia2000.net/images/coin-master-spin-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://pia2000.net/images/coin-master-link-for-spins_GM406889139.pdfIn PDF document text
    • http://pia2000.net/images/free-roblox-download-ps3_GM431946152.pdfIn PDF document text
    • http://pia2000.net/images/robux-free-online_GM431946152.pdfIn PDF document text
    • http://pia2000.net/images/how-to-get-free-shirts-on-roblox_GM431946152.pdfIn PDF document text
    • http://pia2000.net/images/static-moonactive-net-free-spins_GM406889139.pdfIn PDF document text
    • http://pia2000.net/images/free-roblox-accounts-with-robux-2021-may_GM431946152.pdfIn PDF document text
    • http://pia2000.net/images/coin-master-apk_GM406889139.pdfIn PDF document text
    • http://pia2000.net/images/free-mods-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://pia2000.net/images/earn-robux-today_GM431946152.pdfIn PDF document text
    • http://pia2000.net/images/best-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://pia2000.net/images/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
    • http://pia2000.net/images/coin-master-free-spin-27_GM406889139.pdfIn PDF document text
    • http://pia2000.net/images/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://pia2000.net/images/how-can-you-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://pia2000.net/images/free-group-roblox_GM431946152.pdfIn PDF document text
    • http://pia2000.net/images/roblox-free-account-and-password-2021-with-robux_GM431946152.pdfIn PDF document text
    • http://pia2000.net/images/free-coins-coin-master-blog_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_off00002d03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D03 22676 bytes
SHA-256: fc714737e33055be23161f2fa72b818301a7b6b95cc54fedad60ded767cc12a7
font_01_sfnt_off00005f9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F9A 19084 bytes
SHA-256: d721afff26538916a1e3ec3ad05cbe5054876cc815af5cdf2199ed6f9024571d

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