Malicious PDF — malware analysis report

Static analysis result for SHA-256 862f40430c7c0451…

MALICIOUS

PDF

34.5 KB Created: 2021-07-03 20:39:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 873974cadcabfa3c9c1ec1624975c7dd SHA-1: 117940f3277249a1626918d21cd05109c480af00 SHA-256: 862f40430c7c04519a4ec62469394ed7a3b0f51c47c5656b2f44410ecb0aa963
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/dbor-roblox-level-hack-game-hack PDF link annotation
    • http://digilib.stimlog.ac.id/repository/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-how-to-get-items-for-free_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/how-to-hack-roblox-to-get-money_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-hack-instantly_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/can-u-u-use-cheat-engine-on-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/how-to-create-group-in-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/tiktok-free-view-iphone-video_GM835599320.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/cool-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/coinmasterfreespins_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/go-through-walls-roblox-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-kat-hacks_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-create-your-own-scripts-hacks-in-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/roblox-phantomforces-flame-cheat_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/roblox-robux-generator-http-freerobuxgenerator-xyz_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/hacked-roblox-accounts-list_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-roblox-oder-accounts_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_off00002f55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F55 22700 bytes
SHA-256: 0f3af3e988049834c8ded3f018d4f205f97b8102355de5520b08ca362593939e
font_01_sfnt_off0000620f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x620F 18940 bytes
SHA-256: 9f3b202776741d6ddbc7ff797789ec94955c713a35f49befaf1a5c58d5b64a53

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