Malicious PDF — malware analysis report

Static analysis result for SHA-256 8bf002ceda2dfc37…

MALICIOUS

PDF

33.7 KB Created: 2021-07-04 01:27:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 7fc1b101e1c4c3e6b1bf1a7341494025 SHA-1: 7cef873aba8fc5b253ebd0a1d6bb4813f6c4f8c2 SHA-256: 8bf002ceda2dfc377742705090fa8ba8a21db4684d33628d68fbbc271d52f2c4
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

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/479516143/is-minecraft-earth-free-game-hack PDF link annotation
    • http://perpus.masda.ac.id/repository/how-to-hack-admin-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/ispoofer-pokemon-go-free-key_GM1094591345.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/roblox-wizard-life-hack_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/how-to-cheat-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-spins-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/ich-bin-am-hacken-roblox-name-danny-jesden_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-roblox-wings_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/facebook-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/weird-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-robux-edit-html_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/coin-master-apk-mod_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-exploits-roblox-reddit_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/minecraft-survival-free_GM479516143.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/pubg-uc-qiymetleri_GM1330123889.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/how-to-get-free-robux-fast-2021_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/how-to-get-free-spins-on-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/coin-master-hack-unlimited-spins-apk_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/hack-configuration-roblox-robuxian_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/how-to-make-a-minecraft-bedrock-server-for-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_off0000321a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x321A 21956 bytes
SHA-256: bc5003fa70a830857657f3975cf1f846eb32feece961f2977ef03b2dbcae374e
font_01_sfnt_off00006211.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6211 18020 bytes
SHA-256: 96e6e3bf3303e8ffeb20927b63ae2ff56617c6f257b576ebfd215a73ab087f92

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