Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a9148a6bfd1c8f5…

MALICIOUS

PDF

36.1 KB Created: 2021-06-30 02:04:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: e3fb4bddc05032b8640eae4ca455efe9 SHA-1: 8083a48a8acc59585f08b12ffe9cfbe5687530aa SHA-256: 2a9148a6bfd1c8f52e91e854d18069ca79e645d173ee53915e12dc091bcbcfcd
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-robux-without-human-verification-2021-game-hack PDF link annotation
    • http://library.feb.unila.ac.id/rfeb/repository/how-to-get-a-free-boombox-in-roblox_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/free-robux-invite_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/minecraft-coins-free_GM479516143.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/free-magical-chest-coin-master_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/force-hack-roblox_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/hack-coin-master-without-verification_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/roblox-cheat-codes-for-tix_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/is-roblox-free-on-ipad_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/invincible-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/roblox-hack-apk_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/roblox-free-roblox-gift-cards_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/wahoogaming-co-free-robux_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/veos-fun-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/roblox-free-exploit-executor_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/pokemon-go-free-coins-2021_GM1094591345.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/free-robux-without-survey_GM431946152.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb/repository/coin-master-free-spins-2021-app_GM406889139.pdfIn PDF document text
    • http://library.feb.unila.ac.id/rfeb//repository/free-coins-coin-master-spins_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_off000032d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32D5 22492 bytes
SHA-256: e448149eb5fbf0cba532d59a47757ad87b4ebe4d98bdc22c61b5a798604713a6
font_01_sfnt_off00006512.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6512 20100 bytes
SHA-256: 224766b145fea2ee77d6018406834ac88e8b97acd6b6511a2b41135dc58ea70f

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