Malicious PDF — malware analysis report

Static analysis result for SHA-256 289a4e68168463ae…

MALICIOUS

PDF

34.6 KB Created: 2021-07-05 04:32:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 12a934636a6760dd0902f11da3b0a589 SHA-1: c4e1cdc112c1975ecac92d4fe8090593a10696eb SHA-256: 289a4e68168463ae19e9ce5c8b7784a2f83420b4ca073a48faeb1928d53e704b
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.tw/app/431946152/free-robux-come-game-hack PDF link annotation
    • https://digilib.stimlog.ac.id/repository/robux-cheat-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/cheat-engine-64-speed-hack-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/roblox-character-cheat_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/coin-master-cheats-free-spins_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-robux-no-human-verification-and-no-survey_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/hoe-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-get-free-money-on-the-plaza-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/robux-roblox-free-hack_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/downloading-roblox-link-free-like-no-money-needed_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/pokemon-go-free-remote-raid-pass_GM1094591345.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/coin-master-free-gifts_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-black-hair-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/coin-master-hack-without-verification-or-downloading-apps_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-hack-coin-master-without-root_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-hacks-for-mac_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-get-free-robux-no-survey-2021_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_off00003055.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3055 22320 bytes
SHA-256: 9349858530c94b81196a9eecc52629b2e5ae3b518f0f5cec0919a4fd723cbc8e
font_01_sfnt_off00006249.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6249 18976 bytes
SHA-256: 20782bd0acfe52469dc9f14a315b4aee1c9563688044d1d6d3a516ef71528a8c

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