Malicious PDF — malware analysis report

Static analysis result for SHA-256 02ca1ecfb0646233…

MALICIOUS

PDF

34.4 KB Created: 2021-07-03 22:50:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 50d1f8e806e93e4dddaa32596510df23 SHA-1: aad80eadd5159f3b967eaaf4c8180304a9e400ad SHA-256: 02ca1ecfb06462334d47fc02dc78462f824e20b4aefbafc4c806eba8adc2ed67
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-pastebin-com-game-hack PDF link annotation
    • https://digilib.stimlog.ac.id/repository/free-roblox-map-scanner_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/denisdaily-exposing-a-roblox-hacker-wild-revolvers_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-pokemon-t-shirts-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-hacking-system_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-get-free-robux-cards_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-install-anti-hack-for-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/coin-master-free-spins-today-39_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-cool-outfits-free_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-hack-and-become-higher-rank-roblox-d-day_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-do-you-hack-an-account-on-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/coin-master-hack-ios-cydia_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/easiest-money-hack-february-roblox-rocitizens_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/cheat-item-book-in-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-be-a-vip-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/hack-coin-master-apk-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-instantly-get-free-robux-in-roblox-2021-oprewards_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/fly-hack-roblox-weight-sim_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/pubg-uc-17_GM1330123889.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_off00002f6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F6E 22072 bytes
SHA-256: c5f09ab6de1fe199c90cc018a2f5a873e0cd28f33e83b440ed0a1712f26956e7
font_01_sfnt_off00006073.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6073 19356 bytes
SHA-256: 6b35f8a7fd41cf3cb2e8707c13ce6af780a4e8949ba5d19d03a26c85882395b1

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