Malicious PDF — malware analysis report

Static analysis result for SHA-256 01ba72c16c4bdeb8…

MALICIOUS

PDF

35.3 KB Created: 2021-06-27 22:54:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 34656f5fa9f6d760e6192c233826b306 SHA-1: 6bab9ea903aea99d92b0f5ad37eb816444f96da0 SHA-256: 01ba72c16c4bdeb86fdfec36a5512b24d97a9a0322bcff8dcdcefbc16c682943
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file employs a lure related to game hacks and free currency to entice users. It contains multiple links to a known malicious redirector infrastructure, specifically http://netcdn.co/app/431946152/can-you-hack-peoples-roblox-credit-game-hack, which is designed to funnel victims to potentially harmful destinations. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/can-you-hack-peoples-roblox-credit-game-hack In PDF document text
    • http://lib.stimykpn.ac.id/repository/free-roblox-promo-codes-october-2021_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/proxo-cheat-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-get-free-money-on-roblox-ultimate-drivin_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/real-working-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/free-robux-generator-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-get-free-robux-on-chromebook-2021_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-get-free-robux-2021-september_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/bypassed-cheat-engine-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-roblox-scripting-book_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/como-robar-cuentas-de-roblox-con-hacks_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/coin-master-free-coins-and-spins-hack_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-roblox-clothes-templates_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-hack-unlimited-spins-and-coins-cheats_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/hack-des-robux_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/free-robux-giveaway_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/can-you-host-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/anti-ban-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/minecraft-xbox-one-free_GM479516143.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_off000031f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31F1 22264 bytes
SHA-256: b99137a95598249a68afba010920944be4e884331ee320abc1a82ee67b4f6cd4
font_01_sfnt_off0000631b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x631B 19684 bytes
SHA-256: 2b54b6212ab6b948a37a6e84d3c57e85ad5e48d58a666605ea990cf3be24a23b